mori seiki NC LATHES User Manual

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FOR SAFE OPERATION

Applicable Model

NC LATHES

(CE COMPATIBLE)

This FOR SAFE OPERATION describes fundamental safety information for safe operation. Be sure to read this information before operating the machine.

And also, keep this FOR SAFE OPERATION carefully so that it will not be lost.

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• The contents of this manual are subject to change without notice due to improvements to the machine or in order to improve the manual. Consequently, please bear in mind that there may be slight discrepancies between the contents of the manual and the actual machine. Changes to the instruction manual are made in revised editions which are distinguished from each other by updating the instruction manual number.

• Should you discover any discrepancies between the contents of the manual and the actual machine, or if any part of the manual is unclear, please contact Mori Seiki and clarify these points before using the machine. Mori Seiki will not be liable for any damages occurring as a direct or indirect consequence of using the machine without clarifying these points.

The product shipped to you (the machine and accessory equipment) has been manufactured in accordance with the laws and standards that prevail in the relevant country or region. Consequently it cannot be exported, sold, or relocated, to a destination in a country with different laws or standards.

The export of this product is subject to an authorization from the government of the exporting country.

Check with the government agency for authorization.

990730

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SIGNAL WORD DEFINITION

A variety of symbols are used to indicate different types of warning information and advice.

Learn the meanings of these symbols and carefully read the explanation to ensure safe operation while using this manual.

The warning information is classified into three categories, DANGER, WARNING, and CAUTION.

The following symbols are used to indicate the level of danger.

DANGER

WARNING

CAUTION

Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or damages to the machine.

The information described following the caution symbol must be strictly observed.

NOTE

Indicates the items that must be taken into consideration.

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

The information described in the DANGER frame must be strictly observed.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

The information described in the WARNING frame must be strictly observed.

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CONTENTS

1 FOR SAFE OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

2 DANGEROUSNESS OF MACHINE MODIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . P-3

3 CONSIDERATIONS BEFORE OPERATING THE MACHINE . . . . . . . . . . . . . . . . . . . . P-6

3-1 Before Using the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-6

3-2 Before Operating the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-12

4 FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-16

5 PRECAUTIONS ON MACHINE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-18

5-1 Installation Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-18

5-2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-19

5-3 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-20

5-4 Air Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-20

5-5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-21

5-6 Points to Check Before Turning ON the Power for the First Time . . . . . . . . . . . P-23

5-7 Points to Check After Turning ON the Power for the First Time. . . . . . . . . . . . . P-24

6 TURNING THE POWER ON AND OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-25

6-1 Before Turning the Power ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-25

6-2 After Turning the Power ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-26

6-3 When Turning the Power OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-27

7 SAFETY PRACTICES DURING SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-28

7-1 Safety Practices when Mounting/Removing a Chuck . . . . . . . . . . . . . . . . . . . . P-37

8 SAFETY PRACTICES WHEN CHUCKING A WORKPIECE . . . . . . . . . . . . . . . . . . . . P-39

9 SAFETY PRACTICES DURING MACHINE OPERATION . . . . . . . . . . . . . . . . . . . . . . P-45

10 SAFETY PRACTICES DURING PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . P-50

11 TO ENSURE HIGH ACCURACY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-55

12 SAFETY PRACTICES DURING MAINTENANCE AND INSPECTION . . . . . . . . . . . . P-57

12-1 Daily Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-57

12-2 Precautions When Performing Maintenance and Inspection Work . . . . . . . . . . P-58

12-3 Disposal of Industrial Waste. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-62

13 PRECAUTIONS WHEN SELECTING COOLANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-63

14 MACHINING CHAMBER OBSERVATION WINDOW. . . . . . . . . . . . . . . . . . . . . . . . . . P-65

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15 PRECAUTIONS ON INDUSTRIAL ROBOTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-67

16 CAUTION LABELS ON THE MACHINE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-69

17 CAUTIONS RELATING TO SPINDLE SPEED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-70

18 CAUTIONS RELATING TO THE RAPID TRAVERSE RATE . . . . . . . . . . . . . . . . . . . . P-71

19 CAUTIONS RELATING TO CENTER-WORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-72

20 CAUTIONS RELATING TO COORDINATE SYSTEM SETTING . . . . . . . . . . . . . . . . . P-73

21 CAUTIONS RELATING TO G CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-74

22 CAUTIONS RELATING TO M CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-75

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1 FOR SAFE OPERATION

This machine is intended for use by persons who have a basic knowledge of machine tools, including cutting theory, tooling and fixtures. Mori Seiki cannot accept responsibility for accidents that occur as a result of operation or maintenance of the machine by personnel who lack this basic knowledge or sufficient training.

Workpiece materials and shapes vary widely among machine users. Mori Seiki cannot predict the chucking pressure, spindle speed, feedrate, depth of cut, etc., that will be required in each case and it is therefore the user's responsibility to determine the appropriate settings.

Each machine is shipped with a variety of built-in safety devices. However, careless handling of the machine can cause serious accidents. To prevent the occurrence of such accidents, all programmers and other personnel that deal with the machine must carefully read the manuals supplied by Mori Seiki, the NC unit manufacturer, and equipment manufacturers, before attempting to operate, maintain, or program the machine.

Because there are so many "things that cannot be done" and "things that must not be done" when using the machine, it is impossible to cover all of them in the Instruction Manual. Assume that something is impossible unless the manual specifically states that it can be done.

FOR SAFE OPERATION P-1

The following manuals are supplied with your NC lathe:

I. Instruction Manuals prepared by Mori Seiki

• MAINTENANCE MANUAL (MAINTENANCE MANUAL, MAINTENANCE INFORMATION, INSTALLATION MANUAL, DRAWINGS)

• Operation Manual

• Programming Manual

II. NC unit Operation and Maintenance Manuals prepared by the NC unit manufacturer

III. Instruction Manuals prepared by equipment manufacturers

In addition to these manuals, ladder diagrams, parameter tables and electrical circuit diagrams are also supplied with the machine to help with electrical maintenance. The ladder diagrams are provided in the document box, parameter tables and electrical circuit diagrams are stored in the document compartment inside the electrical cabinet. Please make use of these materials when carrying out maintenance work.

Fundamental safety information is presented in the following pages.

All cautions on operation must be strictly observed when operating the machine, carrying out maintenance work, or writing programs. Failure to observe fundamental safety information can cause accidents in which the operator or other personnel working near the machine are seriously injured, or the machine is damaged. All personnel that deal with the machine must carefully read and thoroughly understand the information in the following pages before attempting programming or operating the machine.

The vocabulary and terms used for machine parts and operations in the warnings, cautions and notes are defined or explained in the manual texts and illustrations.

If you are unsure of the meaning of any word or expression, please refer to the corresponding textual explanation or illustration. If you still cannot understand or are unsure of the meaning, contact Mori Seiki for clarification.

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P-2 FOR SAFE OPERATION

"Operator", as used in these cautions, means not only the operator who operates or supervises a machine tool to perform machining, but also any person, including maintenance personnel who maintain and inspect a machine tool or safety device or safety measures provided with it, and the programmers who create programs used for machining, who are engaged in operations which deal with a machine tool.

Therefore, all persons engaged in these operations must carefully read these cautions and related materials, and thoroughly understand the contents before attempting to operate the machine.

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FOR SAFE OPERATION P-3

2 DANGEROUSNESS OF MACHINE MODIFICATION

WARNING

CAUTION

Examples of accidents which can occur if the machine specifications are changed, if the machine is modified, or if the machine is operated or run with any of the safety devices (such as the door interlock function) or protective covers or doors removed, are presented below.

The machine specifications are set before shipping so that the customer's safety is ensured and the machine can deliver its full performance. Never change the settings nor modify the machine in any case. Changing the settings or modifying the machine without consultation may degrade safety assurance or cause accidents involving serious injuries, impaired machine performance, and considerable shortening of the machine service life. If the specifications and/or settings have to be changed, or the machine has to be modified to meet new machining requirements, or due to changes in the operating conditions, consult Mori Seiki.

Mori Seiki cannot accept responsibility for any accident that occurs due to the machine specifications being changed, or the machine being modified, by the customer.

When changing machine parts that have broken or become faulty, or replacing consumable parts that have been used for their service lives, be sure to use genuine parts specified by Mori Seiki. The use of parts not specified by Mori Seiki will be regarded as a modification and Mori Seiki will not accept responsibility for any accident that occurs as a result of using such parts.

1. The operator will become entangled with the spindle if the spindle starts while the operator is touching the chuck or workpiece.

2. The operator will become entangled with the spindle if the operator touches the chuck or the workpiece while the spindle is rotating.

The accidents described above, in which the operator becomes entangled with the rotating parts of the machine, will result in serious injury or death.

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P-4 FOR SAFE OPERATION

3. A workpiece will fly out if the spindle rotation is started while the workpiece is not clamped correctly.

4. A workpiece and/or chuck jaw will fly out if the cutting tool (turret) is hit against the workpiece due to programming error.

5. A workpiece will fly out due to excessively heavy cutting force or lowered workpiece gripping force of the chuck caused by centrifugal force.

6. The workpiece could fly out when performing chuck work or center-work since it is possible to start the spindle and perform automatic operation even if the chuck is unclamped.

7. The workpiece could fly out when performing center-work since it is possible to start the spindle and perform automatic operation even if the workpiece is not supported by the center.

Workpiece is not held by the tailstock spindle.

Workpiece is not clamped by the chuck correctly.

As described above, a workpiece or a chuck jaw, disengaged from the chuck due to some reason, flies out to hits the operator or a person standing near resulting in serious injury or death.

8. The operator will be caught or entangled by moving parts such as turret during axis feed or indexing motions, resulting in serious injury or death.

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FOR SAFE OPERATION P-5

9. The operator or a person standing near the machine will be splashed with chips and coolant during machining, resulting in injury or health problems (particularly if chips or coolant get into the eyes).

10. It is possible to turn the power ON even when the electrical cabinet door is open: this means that the operator could touch a live part inside the electrical cabinet and sustain an electric shock, resulting in serious injury or death.

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P-6 FOR SAFE OPERATION

3 CONSIDERATIONS BEFORE OPERATING THE MACHINE

The cautions that must constantly be born in mind when operating the machine are listed below.

3-1 Before Using the Machine

Listed below are important cautions that apply to all machine-related work (machine operation, maintenance, inspection, programming, etc.).

DANGER

1. Never touch a switch, button, or key with wet hands.

If it is not properly grounded or is leaking current, you could receive an electric shock.

2. Before starting machine operation, check that there is nobody inside the protective cover or close to rotating or moving parts of the machine. Never touch or stand near the rotating or moving parts of the machine while it is operating; you could be seriously injured by being entangled in the rotating parts or crushed by the moving parts.

3. Never operate the machine with the protective cover removed or while interlocks or other safety devices are ineffective, since the machine could operate in an unexpected manner, causing accidents involving serious injuries.

Contact Mori Seiki, the NC unit manufacturer or relevant equipment manufacturer immediately if the protective cover or safety devices are damaged.

4. Always lock out the power to the machine before carrying out work inside the machine – such as setup work or cleaning the inside of the machine – and before carrying out inspections, repairs, or maintenance work. In addition, set the main switch to the OFF position and lock it, and place "PERSONNEL INSIDE MACHINE" or "UNDER MAINTENANCE" signs around the machine to stop anyone from switching on the power or operating the machine while the work is in progress. If work inside the machine or inspection or maintenance work is carried out with the power switched on, machine elements could be moved, and the personnel carrying out the work could be seriously injured by being entangled in the rotating parts or crushed by the moving parts of the machine.

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5. Always switch off the power before carrying out inspection or maintenance work in the electrical cabinet or on motors and transformers. If work has to be done while the power is switched on, it must be carried out by a qualified electrical engineer, taking the proper precautions; there is a danger of electric shock.

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FOR SAFE OPERATION P-7

DANGER

WARNING

6. Cover power supply cables that are run along the floor with rigid insulated plates to prevent them from being damaged. Damage to the insulation of the power supply cable could cause electric shocks.

7. Even after the power is turned off, some devices will remain charged and the temperature of motors, lights inside the machine, etc., will remain high. Make sure that the charge has been discharged or the temperature has fallen before carrying out maintenance work or inspections on these devices. If you touch these devices/units carelessly while they are still charged or while the temperature is still high you could receive an electric shock or be burned.

8. Check that all cables are properly insulated before using the machine. There is considerable danger of electric shock if damaged cables are used.

1. Keep the floor area around the machine tidy and clean; do not leave things lying on it, and clean up spilled water or oil immediately. If you fail to do this, plant personnel may injure themselves by tripping over or slipping on the floor.

2. Before operating the machine, check the area where you will have to stand and walk to make sure you can operate the machine safely. If you do not check your footing beforehand, you could loose your balance while working and injure yourself by putting your hands in a dangerous place while trying to find support, or by falling over.

3. Before using a switch, button, or key, check visually that it is the one you intend to use, and then press or set it decisively. Pressing the wrong switch, button, or key by mistake can cause accidents involving serious injuries or damage to the machine.

4. Keep the doors closed during machine operation. Leaving the machine running or operating it with doors open could cause accidents involving serious injuries or damage to the machine; plant personnel could be seriously injured by being entangled in the rotating parts of the machine, crushed by its moving parts, struck by broken tools, workpieces or jaws flying out of the machine, hit by flying chips, or splashed with coolant.

5. The parameters are set on shipment in accordance with the machine specifications; do not change them without first consulting Mori Seiki. If the parameters are changed without consultation, the machine may operate in an unexpected manner, causing accidents involving serious injuries or damage to the machine.

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P-8 FOR SAFE OPERATION

WARNING

6. The machine specifications are set before shipping so that the machine can deliver its full performance. Changing the settings without consultation may lead to accidents involving serious injuries, impaired machine performance, and considerable shortening of the machine service life. If the specifications and/or settings have to be changed or the machine has to be modified to meet new machining requirements or due to changes in the operating conditions, consult Mori Seiki.

7. Before operating or programming the machine, or performing maintenance work, carefully read the instruction manuals provided by Mori Seiki, the NC unit manufacturer and the equipment manufacturers so that you fully understand the information they contain. Keep these instruction manuals safely so that you do not lose them. If you do lose an instruction manual, contact Mori Seiki, the NC unit manufacturer, or the relevant equipment manufacturer. If you attempt to operate the machine without having carefully read the instruction manuals first, you will perform dangerous and erroneous operations which may cause accidents involving serious injuries or damage to the machine.

8. Always observe the instructions in the caution labels stuck to the machine. Carefully read the Safety Guidelines supplied with the machine so that you fully understand them. If the writing on the labels becomes illegible, or if the labels are damaged or peel off, contact Mori Seiki. Also contact Mori Seiki if you cannot understand any of the labels. If you operate the machine without observing the instructions on the labels, or without understanding them properly, you will perform dangerous and erroneous operations which may cause accidents involving serious injuries or damage to the machine.

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9. Never operate, maintain, or program the machine while under the influence of alcohol or drugs. Your concentration will be impaired, you may loose your balance and fall against dangerous parts of the machine, and you may operate the machine incorrectly, causing accidents involving serious injuries or damage to the machine.

10. Machine operators and authorized personnel working inside the plant and in the vicinity of the machine must put their clothing and hair in order so that there is no danger they will be entangled in the machine. If you have uncontrolled long hair or loose clothing and it gets caught in the machine, you will be seriously injured by being entangled in the rotating parts of the machine or crushed by its moving parts. Always wear safety shoes, eye protectors and a helmet.

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FOR SAFE OPERATION P-9

WARNING

11. The machine is equipped with interlock functions such as the door interlock, chuck interlock, tailstock spindle interlock (applies only to machines equipped with a tailstock) and electrical cabinet door interlock to ensure the operator's safety. All the interlock functions must be ON when operating the machine. If you have to operate the machine with the interlocks released, you must recognize that there are many hazards involved and pay particular attention to safety while operating the machine in this condition. After finishing the necessary work, you must switch the interlocks back ON.

If the machine is operated with the interlocks released, it may operate in an unexpected manner, causing accidents involving serious injuries or damage to the machine.

12. The door interlock function serves only to protect the machine operator from accidents that can be prevented by inhibiting manual and automatic operation of the spindle, axis movement, and all other operations in automatic operation when the door is opened and while it is open; it will not afford protection against other hazards.

For example, each machine user will machine a variety of workpiece types and use a variety of workpiece holding fixtures, cutting tools, and cutting conditions; you are still responsible for ensuring safety with regard to the hazards that can arise from these user-specific conditions.

13. If the door interlock function is released, the machine is able to operate with some limitations while the door is open, exposing you to danger. In daily production operation, the door interlock function must be set "valid" and the key operating the switch must be removed from the switch and kept safely.

When shaping soft jaws, measuring the tool offset data, program check, test cutting or carrying out other setup work, it may be necessary to release the door interlock function. If you have to carry out work while the interlock function is released, you must recognize that there are many hazards involved and pay particular attention to safety.

While the door interlock function is released, the warning lamp blinks in red and the warning buzzer beeps intermittently. You must recognize that the door interlock function is in the released state when the warning lamp is blinking in red and the warning buzzer is beeping intermittently. After finishing the necessary work, you must switch the interlock function back valid.

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P-10 FOR SAFE OPERATION

WARNING

14. Before operating the machine, memorize the locations of the emergency stop buttons so that you can press one immediately from any location and at any time while operating the machine. The emergency stop buttons are used to stop all operations in the event of an emergency. If there is an obstacle in front of an emergency stop button it will not be possible to press it immediately when an emergency occurs and this could cause accidents involving serious injuries or damage to the machine.

15. Always switch the tailstock spindle interlock function ON before carrying out center-work operations. If this function is OFF, it will be possible to start automatic operation when the tailstock spindle is extended, even though it may not support the workpiece correctly. If automatic operation is started in this condition, the workpiece will fly out, causing serious injuries or damage to the machine. (Applies only to machines equipped with a tailstock.)

16. Adjust the position of the tailstock body so that the workpiece is securely held by the tailstock spindle center when the tailstock spindle is extended.

After making this adjustment, clamp the tailstock body to the bed. If the tailstock body is not clamped to the bed, or if the position of the tailstock body is incorrectly adjusted, it will be possible to start automatic operation when the tailstock spindle is extended, even if the workpiece is not supported by the tailstock spindle center. If machining is carried out while the workpiece is not supported by the tailstock spindle center, the workpiece will fly out, causing serious injuries or damage to the machine. (Applies only to machines equipped with a tailstock.)

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17. To prevent hazardous situations, the plant or equipment supervisor must bar entry to the plant or the vicinity of the machine to anyone with insufficient safety training. Allowing persons without sufficient safety training unhindered into the plant and the vicinity of the machine could cause accidents involving serious injuries.

18. Because of the inertia of the moving parts of the machine, they may not be stopped immediately when the emergency stop button is pressed. Always confirm that all operations have stopped before going near these parts. If you approach the moving parts of the machine without due care you may be entangled in them and seriously injured.

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FOR SAFE OPERATION P-11

WARNING

CAUTION

19. Do not leave articles such as tools and rags inside the machine. If the machine is operated with such articles inside it they may become entangled with a tool and thrown out of the machine, and this could cause accidents involving serious injuries or damage to the machine.

20. When the machine is running, operating noise of 85 dB or higher may be produced, depending on the cutting conditions and other factors.

When an operator works near the machine, either the cutting conditions must be changed to limit the generation of noise or the operator must wear protective gear, suited to the level of generated noise, which will not inconvenience the performance of the intended work. Working in a noisy environment might impair an operator's hearing or cause other health problems.

1. User programs stored in the memory, parameters set before shipping, and the offset data input by the user, can be destroyed or lost due to incorrect operation or other causes. To protect data against destruction and loss, back it up using an external I/O device (option), or other device.

If you fail to make backup files, Mori Seiki cannot accept responsibility for any problem resulting from destroyed programs or lost parameter data and/or offset data.

Keep the parameter table supplied with the machine in a safe place. Note that if the data is destroyed it will take some time to set the parameters again.

2. Never touch chips or the cutting edges of tools with your bare hands since you may be injured.

3. Take care not to stumble over the footswitch since you may be injured.

4. If it becomes necessary to perform a memory clear operation, contact Mori Seiki first. If a memory clear operation is performed without due care, the entire memory contents may be deleted, making the machine inoperable.

5. The machine operator must have normal sensory perception. If a person who has an abnormality affecting any sense operates the machine, he/she will not be able to accurately confirm the machine status and surrounding conditions by eye/ ear/touch. Sensory confirmation is extremely important when operating the machine and an inability to make such confirmations properly could cause accidents involving serious injuries or damage to the machine.

6. Ensure that the workplace is adequately lit. If there is insufficient light, the operator may trip over something or be unable to perform or check work accurately, and this could cause accidents involving serious injuries or damage to the machine.

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P-12 FOR SAFE OPERATION

CAUTION

NOTE

7. Remove any obstacles around the machine.

Secure adequate space around the machine for working and adequate passageway, considering both ease of operation and safety. If there are any obstacles or if there is insufficient space or passageway, the operator may trip and fall or be unable to work properly, and this could cause accidents involving serious injuries or damage to the machine.

8. Stack products (workpieces) stably. If they are not stacked stably they may fall and injure the machine operator. Unstable stacking may also damage the products (workpieces), causing defects.

9. Keep the area around the machine clean; remove chips and foreign matter near the machine. If left, chips and foreign matter may cause plant personnel to fall and injure themselves.

10. Use a working bench strong and stable enough to support the weight of the workpieces and tools. If an unstable working bench is used the workpieces and tools could fall off and injure the machine operator.

If a machine alarm or NC alarm occurs, check its meaning by referring to the alarm list in the instruction manual or ladder diagram, and take appropriate action. If this is ineffective, consult Mori Seiki or the NC manufacturer and take action only when you understand clearly what to do.

3-2 Before Operating the Machine

The cautions that you must be aware of before operating the machine are listed below.

WARNING

1. Never stand in front of the spindle or other rotating parts. Never stand in front of the chuck, since the workpiece, cutting tools, or chuck jaws might fly out, particularly during test cutting, causing accidents involving serious injuries.

2. Before starting spindle rotation, check that the workpiece is securely clamped. Or, if performing center-work, check that the tailstock spindle center securely supports the workpiece. (Applies only to machines equipped with a tailstock.)

If the workpiece is not securely clamped or supported, it will fly out when the spindle is rotated, causing serious injuries or damage to the machine.

3. Do not start the spindle unless the machine's left side cover and cylinder cover are removed. If you fail to observe this warning you could be seriously injured by being entangled in the rotating parts of the machine.

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FOR SAFE OPERATION P-13

WARNING

4. Never stand near the moving parts of the machine during a zero return operation or rapid traverse operation, since each axis is returned to the zero point (or fed) at the rapid traverse rate.

Before starting a zero return operation or rapid traverse operation, always make sure that no one is standing near the moving parts, that the moving parts can be fed to the zero point (or fed) without interference, and that you are moving the axis in the correct direction.

Failure to observe these warnings could cause accidents involving serious injuries or damage to the machine: personnel could be crushed by the moving parts of the machine, and the moving parts could strike obstacles.

5. Never stand near the moving parts of the machine during a jog feed operation, since each axis is fed at the jog feedrate set with the feedrate override dial.

Before starting jog feed operation, always make sure that no one is standing near the moving parts and that the moving parts can be fed without interference.

Failure to observe these warnings could cause accidents involving serious injuries or damage to the machine: personnel could be crushed by the moving parts of the machine, or the moving parts could strike obstacles.

CAUTION

6. Never remove burrs on a workpiece by hand while it is clamped by the chuck or while it is fixed inside the machine. If the machine were to start for some reason you would be seriously injured: you could be entangled by the rotating parts of the machine or crushed by its moving parts. You could also injure yourself by losing your balance. Always remove the workpiece and perform the work outside the machine.

1. When machining bar stock on a machine equipped with a bar feeder or spindle through-hole, use straight workpieces only. When machining bar stock with a diameter smaller than that of the spindle (or draw bar), always use guide bushes in order to prevent vibration. If you use a bent workpiece or fail to use guide bushes, the machine will vibrate and the workpiece will shake; this could cause damage to the machine. It will also seriously affect machining accuracy.

2. Do not touch the lamp that illuminates the interior of the machine since, if a halogen lamp or incandescent lamp is used, it will be very hot and will burn you. Also wait some time before touching the lamp after turning the power OFF.

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P-14 FOR SAFE OPERATION

CAUTION

3. Never operate the machine without the shield cover of the chuck opening/closing footswitch and the lock device in place.

If you step on the footswitch by mistake, or drop something on it, the chuck will be unclamped and the workpiece that it was gripping will fall out, and this could cause damage to the machine.

4. Specify a spindle speed limit that is lower than the lowest of the individual allowable speed limits for the chuck, fixture, and cylinder. If you do not follow this instruction, the workpiece could come off the chuck, causing damage to the machine.

5. Clamp workpieces and cutting tools securely. Determine the depth of cut and cutting feedrate for test cutting with safe operation as the first priority; do not give priority to productivity when making these determinations. If you fail to observe this warning, the tool or workpiece could fly, causing damage to the machine.

6. Before starting the spindle in manual operation, set the spindle speed setting switch to the lowest setting. After starting the spindle, increase the spindle speed to the required speed gradually.

When stopping the spindle, first lower the spindle speed by setting the spindle speed setting switch to the low speed position and then stop it.

If the spindle is started at the high speed setting, the workpiece and chuck jaws could fly, causing damage to the machine.

7. For the machine equipped with the proximity switches for zero return, when the axis feed switch which moves the axis away from the zero point is pressed in the zero return mode, the axis will be fed in the opposite direction of the zero point at the set rapid traverse rate while the switch is pressed; make sure that you feed the axis in the correct direction.

For the machine not equipped with the proximity switches for zero return, when the axis feed switch which moves the axis away from the zero point is pressed in the zero return mode, the axis will be fed in the direction of the zero point at the set rapid traverse rate while the switch is pressed; make sure that you feed the axis in the correct direction.

Also make sure that you feed the axis in the correct direction whenever you use an axis feed switch to feed an axis at a rapid traverse rate or jog feedrate.

Feeding an axis in the wrong direction could cause damage to the machine; the moving parts could strike obstacles.

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FOR SAFE OPERATION P-15

CAUTION

8. Select the appropriate chucking pressure and tailstock spindle thrust force (applies only to machines equipped with a tailstock) for the workpiece shape and material, and the cutting conditions. If you cannot determine the appropriate chucking pressure, contact the chuck manufacturer or cylinder manufacturer. If you cannot determine the appropriate spindle thrust force (applies only to machines equipped with a tailstock), contact Mori Seiki. If the chucking pressure or spindle thrust force (applies only to machines equipped with a tailstock) is not set appropriately in accordance with the shape and material of the workpiece being machined and the cutting conditions, the workpiece could come off the chuck during machining, causing damage to the machine. Incorrect setting could also distort the workpiece.

9. Coordinate values and M, S, T, G, and F codes in the blocks skipped during sequence number search operations do not change the coordinate values or modal M, S, T, G, and F codes in the NC.

When searching for a block part way through a machining process and restarting machining from that point, specify the M, S, T, G, and F codes, and workpiece coordinate system, etc., in the MDI mode after carefully checking the status of the machine and the NC. If machining is restarted without specifying this information, the machine may operate in an unexpected manner, causing damage to the machine.

10. In order to open the electrical cabinet door, you must place the main switch in the

OPEN RESET position. If the main switch is at a position other than OPEN RESET, it will not be possible to open the door. Attempting to force the door open

in this situation could cause damage to the electrical cabinet door or the main switch.

11. When clamping or unclamping the chuck, pay sufficient care so that hand or fingers will not be caught by the chuck or the chuck jaws. If caught by the chuck or chuck jaws, hand or fingers will be injured.

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P-16 FOR SAFE OPERATION

4 FIRE PREVENTION

Failure to observe the following warnings may result in a fire or machine damage. Mori Seiki is not liable for any fire whose cause is other than a product defect.

1. When machining using coolant

• Recieve the MSDS (MATERIAL SAFETY DATA SHEET) from the coolant manufacturer directly yourself as the customer and use coolant without any chemical effects on the machine. Take careful note of the effects on the human body and the storage method described in the MSDS.

• Before starting automatic operation, check the amount of coolant in the coolant tank, and replenish coolant if necessary. When insufficient coolant is applied to the cutting point, the machined part will heat up due to insufficient cooling, and this may result in a fire.

2. When machining using flammable coolant (not recommended)

• Do not use a flammable coolant such as oil-based coolant, as it has high risk of a fire which may spread to the entire machine. If a flammable coolant is used out of necessity, any consequent fire or accident must be dealt with as the users' responsibility.

• Always monitor the machining process and do not carry out unmanned operation. Install appropriate automatic fire extinguishing equipment to quickly extinguish fire at an early stage.

• Check the flash point and the ignition point of the coolant to be used. Manage the material of the tools and workpieces, and tool wear so that the temperature during machining does not exceed these points.

• When coolant becomes a mist inside the machine, it may burn explosively in abnormal temperature conditions. Change the coolant discharge method so that no coolant mist becomes suspended inside the machine, or install equipment to collect the coolant mist generated.

• Use an explosion-proof mist collector.

• Check the instructions on coolant in the manuals in advance, and follow them.

3. When machining without using coolant (including dry cutting and semi-dry cutting)

• Check and manage the materials of the tools and workpieces to be used to prevent fire due to heat generated in the machining process.

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FOR SAFE OPERATION P-17

4. When machining workpieces made of flammable material

• Always monitor the machining process and do not carry out unmanned operation. Install appropriate automatic fire extinguishing equipment to quickly extinguish fire at an early stage.

• Check and manage the tools and machining conditions to be used so that the temperature during machining does not exceed the ignition point.

• Materials such as magnesium may burn explosively when exposed to water while burning. Check the fire-fighting methods and equipment in advance, and install the equipment at suitable locations for quickly extinguishing fire.

5. Before starting automatic operation

• Reconfirm that all parts of the tools and tool holders are securely tightened. Insufficient tightening leads to insufficient tool clamping, and may result in an accident or a fire caused by heat.

• Reconfirm that the workpiece is securely clamped. If a workpiece is not clamped securely, it may shift and make contact with a tool, resulting in a fire caused by heat.

• Do not use worn or damaged tools. If worn or damaged tools are used, chips may clog them, resulting in a fire caused by heat.

• Before starting automatic operation, reconfirm that the tools and programs to be used are correct. Failure to use the correct tools and programs may result in an accident or a fire. Especially with a program in which the same pattern is executed repeatedly, confirm that the tool is selected correctly before starting the second set of repetitions after the first machining.

• Create a program after confirming the machining conditions so that the heat generated by rubbing is minimal. Creating programs without this consideration may result in a fire or machine damage.

• The conversational programming function creates NC programs based on general machining conditions, but the final responsibility for determining the machining conditions rests with the user. Mori Seiki is not liable for the machining outcome of the conversational programming function.

• During and after machining, completely remove chips if necessary. Failure to remove chips completely may result in a fire, depending on the workpiece material and machining conditions.

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P-18 FOR SAFE OPERATION

5 PRECAUTIONS ON MACHINE INSTALLATION

5-1 Installation Site

CAUTION

1. When installing the machine, refer to the installation drawing and other instructions and provide sufficient maintenance area to allow the chip conveyor (if featured) and coolant tank to be removed, and the electrical cabinet door to be opened and closed, without difficulty. Also ensure that the doors of the machine and NC unit will be able to be opened without interference. If you do not provide sufficient maintenance area it will not be possible to carry out maintenance work properly and the life of the machine will be shortened.

2. Choose an installation site that is as free as possible from dirt, dust, and mist. If dirt and dust adhere to the cooling fan fitted inside the machine its cooling capability will be impaired and this could cause machine faults.

3. Install the machine at a site where it will not be reached by chips, water, and oil scattered from other machines. These could cause machine faults.

4. Install the machine at a site where the ambient temperature remains within the range 10 to 35°C and the humidity does not exceed 75% RH (with no condensation). Failure to comply with these conditions could cause trouble in the electrical systems of the NC unit and peripheral devices and cause machine faults.

5. The machine must not be installed at a site subject to excessive vibration (greater

than 4.9 m/s

). Excessive vibration could cause machine faults and will

adversely affect machining accuracy.

NOTE

1. Install the machine at a site where neither it nor the NC unit is subject to direct sunlight. Direct sunlight will raise the temperature and cause thermal displacement, adversely affecting machining accuracy.

2. Make sure the floor is strong enough to support the machine. The floor must not be sloped or irregular in any way. Twisting or other distortion of the machine will adversely affect machining accuracy.

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5-2 Power Supply

FOR SAFE OPERATION P-19

DANGER

WARNING

Only a qualified electrical technician should perform work involving the power cable connections. If the work is done by a person unfamiliar with the necessary safety precautions when performing electrical work, he/she may receive an electric shock.

1. For the power supply, provide isolated wiring directly from the input power supply. If there is an excessive voltage drop, for example due to insufficient capacity of the factory power supply, the machine may malfunction, causing accidents involving serious injuries or

damage to the machine.

Item Range

Nominal power source voltage fluctuation range (200/220 VAC)

Voltage drop

Frequency fluctuation range (50/60 Hz)

Momentary power failure Less than 10 msec.

Voltage impulse

+10%/−15%*

Within 15% of normal voltage for 0.5 seconds

±1 Hz

1.5 ms or less at the peak value with 200% or less effective value (rms) of line voltage

Waveform distortion of AC voltage 7% or less

Imbalance in line voltages 5% or less, or within 10 V

Select a primary power cable by accurately calculating the power supply capacity at the supply side. Using an inappropriate cable could lead to fire, injury, or damage to the machine.

2. Do not install the machine close to major sources of electrical noise, such as electric welders and electrical discharge machines. If the voltage supply is not stable, the machine may malfunction, leading to accidents involving serious injuries or damage to the machine. If noise is continually entering the machine through power cables, it can cause breakage or burning of electrical or electronic devices inside the electrical control panel and this can lead to fire.

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P-20 FOR SAFE OPERATION

NOTE

1. * Voltage fluctuation (drop) during spindle or servo system acceleration must be

2. A breaker less than 100 A requires a cable with a temperature resistance of 60°C or

3. UL486 listed terminals shall be used for connecting power supply.

5-3 Grounding

DANGER

less than 7%.

If voltage is lower than 200 V during servo system acceleration/deceleration, actual acceleration/deceleration time may be elongated than the theoretical time.

higher; a breaker exceeding 100 A requires that of 75°C or higher.

1. Grounding work is essential. If grounding work is not performed, the machine operator could receive an electric shock.

2. The grounding wire should be as short as possible and should have the same thickness as the power wires. Perform class D grounding work with the grounding resistance of 100

Ω

or less. If the

grounding is ineffective, there will be a danger of electric shock.

WARNING

5-4 Air Supply

CAUTION

3. Check for earth faults and short circuits after completing the grounding work.

1. The machine must be grounded independently of other machines. If electric welders or electric discharge machines are grounded to the frame of the plant building, do not connect the ground wire of the machine to the plant frame. If the ground wire is not connected independently, the machine could malfunction due to electrical noise from other machines, causing accidents involving serious injuries or damage to the machine.

2. Use the M8 terminal suitable for the grounding cable.

1. Use only clean and dry air of 0.5 MPa (72.5 psi) having a pressure dew point at 10°C or less.

If you use air that is moist or has a high concentration of dust, the pneumatic devices could malfunction, causing damage to the machine. (Applies only to machines equipped with pneumatic devices.)

2. Make sure that the air source can supply the specified volume of air. If it has insufficient capacity, the pneumatic devices could malfunction, causing damage to the machine. (Applies only to machines equipped with pneumatic devices.)

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5-5 Installation

FOR SAFE OPERATION P-21

WARNING

1. Only a qualified technician should perform machine hoisting work. Operation of the crane or forklift by a person unfamiliar with safe operation practices could cause accidents involving serious injuries or damage to the machine.

2. Use only wires, shackles and jigs of the dimensions specified in the manual. They must be strong enough to support the weight of the machine (the weight of the machine is stated in the MAINTENANCE INFORMATION). If the machine is hoisted using equipment that cannot bear its weight, it will fall, causing accidents involving serious injuries or damage to the machine.

3. Make sure that the machine is well balanced in both the crosswise and lengthwise directions after hoisting it a little above the floor. If you continue to hoist the machine although it is not properly balanced, it will fall, causing accidents involving serious injuries or damage to the machine.

4. When two or more people are involved in the hoisting work, they must cooperate carefully, communicating as fully as possible.

If one worker moves the machine or operates the crane without noticing that there is another worker inside or near the machine, he/ she could seriously injure that worker.

5. Before hoisting the machine, check that no tools, rags, etc., have been left inside it. When the machine is lifted, these articles could fall out and cause accidents involving serious injuries damage to the machine.

6. When moving the machine with a forklift, do not move the forklift while lifting the machine to a high level. If you move the forklift while lifting the machine to a high level, it will lose balance and the machine will fall, causing accidents involving serious injuries or damage to the machine.

7. Use a crane or forklift which can bear the weight of the machine. If the machine is hoisted or lifted using equipment that cannot bear the weight of the machine, the machine will fall, causing accidents involving serious injuries or damage to the machine.

8. When hoisting the machine, confirm the center of gravity of the machine. If you move the machine without confirming its center of gravity, it will lose balance and fall, causing accidents involving serious injuries or damage to the machine.

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P-22 FOR SAFE OPERATION

CAUTION

1. If a rust-preventive coating is applied to the slideway surfaces, it must be removed completely. If any rust-preventive coating remains on the slideways when the axis feed is attempted, the machine could be damaged.

2. The saddle and cross slide are fixed in place with transit clamps when the machine is shipped. Also, eyebolts are used to hoist the machine. All clamps and eyebolts must be removed before switching the power ON. If a clamp cannot be removed without switching the power ON first, remove it immediately after switching the power ON. If axis feed is attempted while a clamp is still in place the machine will be damaged.

3. Before hoisting the machine, check that all of its parts are clamped. Lifting the machine while any of the parts is not clamped adequately could cause damage to the machine.

4. When moving the machine by using rollers, use only rollers, floor plates, and treadway that are strong enough, both in material and number, to bear the weight of the machine. If such rollers, floor plates, or treadway cannot bear the weight of the machine, they will be distorted and the machine cannot be moved.

5. When installing the machine, mount the coolant tank and the chip bucket by pushing them into an appropriate position. Otherwise, coolant may be splashed around the machine causing the operator or persons around the machine to topple down and get injured.

6. To obtain and maintain the intended levels of accuracy and performance from a machine over a prolonged period of time, perform foundation work carefully and pay attention to machine installation. Unless foundation work is performed according to the foundation diagram, it will adversely affect the accuracy (static and dynamic) and the life of the machine.

After the machine has been installed it must be leveled. Adjust the machine's crown and

NOTE

distortion values according to the Accuracy Test Results Chart delivered with the machine. If this adjustment is not carried out properly, machining accuracy will be adversely affected.

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FOR SAFE OPERATION P-23

5-6 Points to Check Before Turning ON the Power for the First Time

On completing machine installation, check the following points before turning ON the power for the first time.

CAUTION

1. Make sure that all bolts are tightened securely. Operating the machine with insufficiently tightened bolts could cause damage to the machine.

2. Make sure that all connectors are connected securely. Operating the machine with loose connectors could cause machine faults.

3. Make sure that all hydraulic hoses and air pipes are connected securely. If the machine is operated while they are not connected securely, hydraulic oil or air will leak when the power is turned ON, causing machine faults.

4. If the machine is equipped with any optional external equipment (bar feeder, loader, robot, etc.), make sure that the electric cables and hydraulic/pneumatic pipes for this equipment are connected correctly. Operating the external equipment or the machine with incorrect connections will cause equipment or machine faults.

5. Select handle mode using the mode selection switch on the operation panel. If the power is turned ON with any other mode being selected, the machine will malfunction, causing damage to the machine. (Discrete type operation panel specification)

6. Check the voltage and sequence of phases L1, L2, and L3 (R, S, T) of the input power supply with a phase rotation indicator. If the phase sequence is incorrect, the machine will malfunction causing damage to the machine.

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P-24 FOR SAFE OPERATION

5-7 Points to Check After Turning ON the Power for the First Time

WARNING

CAUTION

1. Be sure to follow the procedure described below before warming up the spindle. Without this procedure, the chuck cylinder may seize up reducing the chuck gripping force, and the chuck, holder or workpiece may fly out, causing accidents involving serious injuries or damage to the machine.

1) To prevent the chuck cylinder from seizing up, repeat the chuck opening and closing operations several times so that the necessary hydraulic pressure will be supplied to the chuck cylinder.

2) Check that the jaws or holding fixture are securely mounted.

2. Check for oil leaks and check that all gages read the correct values. Operating the machine while there is an oil leak or while gage readings are incorrect will cause accidents involving serious injuries, machine faults or damage to the machine.

1. Remove any clamps that could not be removed with the power OFF immediately

after turning the power ON and making sure that the handle mode () is

selected and the chuck is unclamped. If axis feed is attempted while a clamp is still in place the machine will be damaged.

2. To prevent the spindle from seizing up, perform spindle break-in operation as described below.

Determine the lowest of the individual permissible rotation speeds for the chuck, fixture, and cylinder, and set this as the maximum break-in speed. Divide this speed to obtain five steps with the maximum spindle speed as the fifth, and then run the spindle for 20 minutes at each of the five break-in spindle speeds. If spindle break-in operation is not performed sufficiently, the machine service life will be shortened and machining accuracy will be adversely affected.

3. After turning the power ON, check that the slideway lubrication pump is operating normally. If the machine is operated while the pump is not operating normally, lubricating oil will not be supplied to the slideways and this will cause damage to the machine.

In order to protect the sliding parts, never feed the axes immediately after turning the power ON; manually operate the slideway lubrication pump to supply lubricating oil to the slideway surfaces first. Feeding the axes while no lubricating oil is supplied will wear the sliding parts and ball screws and cause seizure and other damage to the machine.

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6 TURNING THE POWER ON AND OFF

6-1 Before Turning the Power ON

Observe the following instructions before turning the power ON in order to prevent accidents involving serious injuries or damage to the machine.

FOR SAFE OPERATION P-25

WARNING

CAUTION

1. When the main power switch is locked, it means that maintenance procedures are being performed. Do not place the main power

switch in the (ON) position.

2. After pressing the NC power switch (ON), do not touch any of

the operation-related keys on the NC operation panel until the screen shows "(WARNING)". If you accidentally use one of these combinations the machine will operate in an unexpected manner, and this could cause accidents involving serious injuries or damage to the machine.

1. Make sure that all bolts are tightened securely. Operating the machine with insufficiently tightened bolts could cause damage to the machine.

2. Make sure that all connectors are connected securely. Operating the machine with loose connectors could cause machine faults.

5. Do not place the main switch in the ON position while the primary power is not supplied to the main switch.

If the main switch is placed in the ON position repeatedly although the primary power is not supplied to the main switch, the main switch will be damaged.

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P-26 FOR SAFE OPERATION

6-2 After Turning the Power ON

WARNING

1) To prevent the chuck cylinder from seizing up, repeat the chuck opening and closing operations several times so that the necessary hydraulic pressure will be supplied to the chuck cylinder.

2) Check that jaws, workpiece or holding fixture are securely mounted.

2. If the machine stops due to a power failure, turn the main disconnect switch OFF immediately. If you do not turn the power OFF the machine will start operating unexpectedly when the power is restored, and this could cause accidents involving serious injuries or damage to the machine.

3. The machine cannot operate correctly unless the specified power is supplied. If the power supply is momentarily cut off during machine operation due to a power failure or lightning, the machine may operate unexpectedly and this could cause accidents involving serious injuries or damage to the machine. If abnormal fluctuations in the power supply voltage are likely, for example due to lightning, switch the power OFF.

CAUTION

4. Check for oil leaks and check that all gages read the correct values. Operating the machine while there is an oil leak or while gage readings are incorrect will cause accidents involving serious injuries, machine faults or damage to the machine.

1. After turning the power ON, check that the fans are operating normally. If the machine is operated while the fans are not operating normally the heat inside the machine will not be dissipated and this will cause damage to the machine and machine faults.

2. After turning the power ON, check that the slideway lubrication pump is operating normally. If the machine is operated while the pump is not operating normally, lubricating oil will not be supplied to the slideways and this will cause damage to the machine.

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FOR SAFE OPERATION P-27

CAUTION

3. After turning the power ON, break in the spindle for about 15 minutes. If you do not break in the spindle, the machine's service life and machining accuracy will be adversely affected.

4. When turning the power ON after the machine has been stopped by a power outage, check that the program, parameter data, offset data, etc. have not been destroyed. If the machine is used with destroyed data, it could cause damage to the machine.

6-3 When Turning the Power OFF

WARNING

CAUTION

[Emergency Stop] button are used to stop all operations in the event of an emergency. Memorize the locations of the [Emergency Stop] button to enable immediate activation from any location at any time while operating the machine.

[Serious injury/Machine damage]

1. If you turn the main switch OFF during machine operation without following the preliminary steps the machine will operate in an unexpected manner and this could cause damage to the machine.

2. To turn the power OFF, follow the sequence below:

• Check if an alarm or other abnormality has occurred.

• Press the emergency stop button.

• Press the NC power switch (OFF) on the operation panel.

• Turn the main switch (no fuse breaker) OFF.

• Turn OFF the plant-side main circuit breaker for the machine.

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P-28 FOR SAFE OPERATION

7 SAFETY PRACTICES DURING SETUP

"Setup" is the sequence of operations between turning the power to the machine ON and starting mass production. It includes inputting of the program, shaping of soft jaws, setting of tool offsets, program checking, and test cutting.

WARNING

1. The machine should normally be operated by one, well-trained person only.

In cases where more than one operator is essential, the operators must cooperate carefully, communicating as fully as possible. If one operator presses buttons on the operation panel or feeds machine axes while another is replacing a workpiece, soft jaws, a fixture, or cutting tool, etc., that operator, or someone standing close by, could be entangled in the machine and seriously injured.

2. In order to ensure operator safety, implement the following safety measures during setup while the door is shut and the door interlock function is released.

1) Select the handle mode ( ) with the mode selection switch.

2) Unclamp the chuck.

3) Close the cover over the automatic operation switch (cycle

start). (Applies to machines equipped with covered switches.)

4) Set the spindle speed range to "Neutral". (Applies only to machines equipped with a transmission.)

1) Set override switches (spindle speed, rapid traverse, cutting feedrate) to the lowest position.

2) Switch the single block function ON.

3) Switch the machine lock function ON.

4) Establish the coolant OFF mode by pressing the coolant switch

(off) for longer than one second.

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FOR SAFE OPERATION P-29

WARNING

1) Unclamp the chuck.

2) Set the spindle speed range to "Neutral". (Applies only to machines equipped with a transmission.)

3) Close the switch covers of the spindle normal rotation and spindle reverse rotation switches. (Applies to machines equipped with covered switches.)

4) Set the operation selection key-switch to the (operation

disable) position. (Applies to machines equipped with a flat type operation panel.)

1) Set the spindle speed setting switch to the lowest setting.

1) Set the turret indexing switch to the station number that is currently indexed.

2) Close the switch cover over the turret indexing switch. (Applies to machines equipped with covered switches.)

3) Set the operation selection key-switch to the (operation

disable) position. (Applies to machines equipped with a flat type operation panel.)

3. Never stand in front of the spindle or other rotating parts. Never stand in front of the chuck, since the workpiece, cutting tools, or chuck jaws might fly out, particularly during test cutting, causing accidents involving serious injuries or damage to the machine.

4. When using a manually tightened chuck or fixture, always remove the clamp handle or tightening tool from the chuck or fixture after tightening. If the spindle is started with the clamp handle or tightening tool still in place the handle/tool will fly out, causing serious injuries or damage to the machine.

5. When mounting a rotary tool holder to the turret head, always mount a tool in the tool holder. If the rotary tool spindle is started while there is no tool mounted in the tool holder, the collet clamping nut will be loosened and the collet clamping nut and collet will fly out during rotation, causing serious injuries or damage to the machine. (Applies to milling specification.)

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P-30 FOR SAFE OPERATION

WARNING

6. The machine has a chuck interlock function that prevents starting of the spindle unless the chuck clamp indicator is lit. Make sure this interlock function works correctly by setting the correct chuck clamping direction for the type of workpiece to be machined.

If the spindle starts rotating while the workpiece is not correctly clamped in the chuck, the workpiece could fly out, causing serious injuries or damage to the machine.

7. Before starting the spindle, carefully check the workpiece chucking conditions, the chucking pressure, and the spindle speed. If spindle rotation is started when the workpiece is grasped unstably or when the chucking pressure or spindle speed inappropriate, the workpiece could fly out, causing serious injuries or damage to the machine.

8. Be aware that the spindle will start rotating if the spindle switch

(normal rotation ), (reverse rotation), or (jog) is

pressed by mistake while a manual mode is selected and the conditions for spindle rotation are satisfied. If these switches are pressed carelessly the spindle will start rotating unexpectedly and this could cause accidents involving serious injuries or damage to the machine.

9. Since forged and cast workpieces have hard chucking portions due to scale, use hard jaws for these workpieces. If the chucking contact has to be a point or line contact, for example when clamping on the draft of a casting, use spikes embedded in the jaws. If three soft jaws are used, shape them so that the workpiece is clamped at six points; avoid face contact between the jaws and workpieces with scale on them.

10. Be aware that the turret head will start rotating if the turret head index switch is pressed by mistake while the conditions for turret indexing are satisfied and a manual mode is selected. If this switch is pressed carelessly the turret will start rotating unexpectedly and this could cause accidents involving serious injuries or damage to the machine.

11. When using the stopper inside the spindle, make sure that the adjusting shaft in the spindle does not protrude excessively from the rear of the spindle (cylinder).

If there is excessive protrusion the adjusting shaft will fly out, causing serious injuries or damage to the machine. (Spindle stopper specification)

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FOR SAFE OPERATION P-31

WARNING

12. If the spindle gear range is changed when the spindle is stopped, the spindle may rotate a little. Make sure that this rotation will not cause any interference. (Applies only to machines equipped with a transmission.)

13. Do not machine the counterbore depth of the soft jaw mounting bolts. This will weaken the soft jaws. In addition, the mounting bolts will contact the bottom of the master jaw T groove, making it impossible to hold the soft jaws securely. If machining is carried out in this condition the workpiece and soft jaws will fly out, causing accidents involving serious injuries or damage to the machine.

14. With the machine equipped with a hollow chuck, if machining is carried out without using the chuck through hole, be sure to fit the through hole cover provided as an accessory to the chuck. If machining is carried out without the through hole cover fitted, coolant and chips will get inside the chuck and cylinder, causing their hydraulic circuits and those of other units to malfunction. If machining is carried out under these conditions, the chuck gripping force will be reduced and the workpiece will fly out, causing serious injuries or damage to the machine and peripheral equipment.

15. When handling (mounting, removing, or moving) a heavy object, use appropriate equipment such as a crane and a hoist. If you handle a heavy object by your hands without using such equipment, you could be seriously injured or physically disabled due to heavy load.

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P-32 FOR SAFE OPERATION

WARNING

16. Failure to observe the warnings and cautions below could cause the workpiece or cutting tools to fly out, resulting in serious injuries or damage to the machine.

1) Specify a spindle speed that is lower than the lowest of the individual allowable speed limits for the chuck, fixture and cylinder.

2) Clamp workpieces and cutting tools securely. Determine the cutting conditions for test cutting such as the depth of cut and the cutting feedrate from the conditions with some margins in consideration of safety.

3) Always select the most appropriate cutting tool and holder considering the material and shape of the workpiece to be machined as well as cutting method, and check that the workpiece can be machined without any problems.

4) Make sure that the cutting tool, holder, soft jaws, and tailstock (if featured) are all tightened securely.

5) Before starting the spindle, carefully check the workpiece chucking conditions, the chucking pressure, and the spindle speed.

6) Give full consideration to the type of chuck and cylinder used when setting the chucking pressure. Even if the same hydraulic pressure is applied to the chuck, the chuck gripping force will vary depending on the manufacturer and type of chuck and cylinder. Contact the chuck manufacturer and cylinder manufacturer for the information about appropriate chucking pressure.

17. The chuck gripping force may be reduced due to a malfunction of the chuck or cylinder or a centrifugal force during high-speed spindle rotation. If machining is performed without securing a sufficient gripping force, the workpiece may fly out, causing serious injuries or damage to the machine.

If the chuck gripping force is reduced due to deterioration over time or damage from an accident or inadequate maintenance, contact Mori Seiki Service Department.

To prevent the chuck gripping force from lowering, clean and grease the chuck at regular intervals.

If the gripping force is reduced due to the centrifugal force applied to the jaws during high-speed spindle rotation, readjust the cutting conditions such as chucking pressure, cutting feedrate or cutting amount. Refer to the manuals prepared by the chuck manufacturer and the cylinder manufacturer.

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FOR SAFE OPERATION P-33

CAUTION

1. Contact Mori Seiki when cutting cast iron, ceramics, or other materials which generate powder-type chips in dry cutting. If chips are not dealt with in a manner appropriate for the workpiece material, they can cause machine faults.

2. If no tool holders for rotary tools are mounted in the turret head, fit covers to the rotary tool holder mounting holes after checking that the covers are fitted with O rings. If covers are not fitted, chips and coolant will get inside the turret head and may cause machine faults. (Applies to milling specification.)

3. Do not touch the lamp that illuminates the interior of the machine since, if a halogen lamp or incandescent lamp is used, it will be very hot and will burn you. Also wait some time before touching the lamp after turning the power OFF.

4. Keep the machine light on during setup to ensure safety. If this light is off it will not be possible to check conditions inside the machine or test cutting properly, and this may cause damage to the machine or machining defects. In addition, operators could be injured while working inside the machine.

5. If the machine is stopped for a day or longer, the oil film on the slideways may be lost. If the machine is started in this condition the slideways and ball screws will be worn and might seize.

Therefore, if the machine has not been operated for a day or longer, press the manual lubrication pushbutton to forcibly lubricate the slideways.

6. In order to protect the lubrication pump motor, do not hold down the manual lubrication pushbutton for longer than one minute when supplying lubricating oil to the slideways manually. If the pushbutton is held down for longer than a minute, the lubrication pump motor may fail.

7. Do not stop spindle rotation while the cutting tool is in contact with the workpiece. This will cause damage to the cutting tool and/or machine.

8. Do not turn the manual pulse generator dial any faster than 5 rotations per second. If you do, the axis will not stop immediately when the manual pulse generator is stopped and the actual amount of axis feed will not coincide with the number of pulses generated. This could cause damage to the machine.

9. When the turret head is rotated with cutting tools mounted in it, tools with long projection lengths could strike the Z-axis protector, etc. Before rotating the turret, make sure that the tools in the turret do not interfere with the protector, since interference will cause damage to the machine.

10. When mounting an I.D. cutting tool in the turret head, make sure that the tool shank does not project beyond the rear surface of the tool holder. If it does it will interfere with the turret base, etc., during turret head rotation, causing damage to the machine.

11. Remember that the direction of spindle rotation is determined by the tool registration data and the spindle will rotate in the wrong direction if the settings are incorrect. Machining while the tool is rotating in the wrong direction can cause damage to the tool and the machine. (Applies only to milling specification.)

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CAUTION

12. An extraction bar used when removing the center from the tailstock body is fitted inside the tailstock of some models.

It functions for shock-proofing when another bar, inserted from the rear of the tailstock body, is tapped to remove the center. It also serves to prevent chips and coolant from entering the tailstock body during machining. Do not operate the machine without the extraction bar fitted inside the tailstock body since this could cause damage to the machine. (Applies only to machines equipped with a tailstock.)

13. When shifting the coordinate system in order to check a center-work program, set the shift direction and shift amount carefully to avoid interference between the turret and tailstock, which could cause damage to the machine. (Applies only to machines equipped with a tailstock.)

14. When setting the coordinate system using the machine coordinate system setting function, any mistake in specifying the X and Z values in the G50 block will cause interference between the cutting tool, tool holder, or turret head, and the workpiece, chuck, fixture, or tailstock (if featured), damage to the machine, or will cause the cutting tool failing to reach the cutting position.

15. Support the workpiece securely before stepping on the chuck clamp/unclamp footswitch to remove it. If you step on the footswitch without taking this precaution the workpiece will fall and this could cause damage to the machine.

16. You will probably use a variety of workpiece shapes and materials, and the chucking method will differ according to the workpiece type. Therefore, when checking a program with the workpiece clamped in the chuck, check for interference carefully, taking the workpiece shape and material, and the chuck gripping force, into account. Depending on these factors, the cutting tool, holder, or turret head might interfere with the workpiece, chuck, fixture, or tailstock (if featured), causing damage to the machine.

17. If the workpiece is supported using the tailstock spindle, carelessly moving the tailstock spindle in or retracting the tailstock body will leave the workpiece held by the chuck alone. The workpiece may fall, damaging the machine, if it is held only by the chuck. Therefore, before moving the tailstock spindle in or retracting the tailstock body, ensure that the workpiece is held securely by a crane or other appropriate means. (Applies only to machines equipped with a tailstock.)

18. Mount cutting tools to the turret head in a well-balanced manner, and ensure that there will be no interference between the cutting tools/holders and the workpiece or machine. If a cutting tool projects too far it will interfere with the Z-axis protector, tailstock (if featured), or workpiece, etc., when the turret head is rotated, causing damage to the machine.

19. Whenever mounting or removing a tool to or from a rotary tool holder, remove the rotary tool holder from the turret head and mount or remove a tool to or from the rotary tool holder outside the machine. If a tool is mounted or removed to or from the rotary tool holder mounted in the turret head, it could cause damage to the machine. (Applies only to milling specification.)

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FOR SAFE OPERATION P-35

CAUTION

20. When mounting a tool to a rotary tool holder using a collet, do not tighten the collet clamping nut excessively. If the collet clamping nut is tightened excessively, the nut will be damaged, which causes the tool and the machine to be damaged. (Applies only to milling specification.)

21. In the case of machines equipped with a live center as the tailstock spindle center, a live center must also be used for the tailstock spindle center. If the workpiece is supported with a tailstock spindle center other than a live center, the center will seize when the spindle is started, causing damage to the machine. (Applies only to machines equipped with a tailstock.)

22. If the automatic operation switch (cycle start) is pressed at the background

edit screen under the conditions that the automatic operation (program) cycle has completed and the memory mode is selected, the program called in the foreground starts. Therefore, the machine operates in a manner different from the program displayed on the screen (background area).

23. When setting the tooling, refer to the turret interference diagram and axis travel diagram in DRAWINGS so as to avoid interference. In the case of machines with two spindles, also make sure there will be no interference during workpiece transfer. Careless tooling will cause interference between the tools and the workpiece, chuck, chuck jaws, covers, tailstock (if featured) or headstock 2 (if featured), which could cause damage to the machine.

24. For the machine with the flat type operation panel, always place the operation

selection key-switch in the (operation enable) or (operation disable)

position after completing program entry. Be aware that the program will be updated if program editing operations are carried out with the operation selection

key-switch at the (operation & edit enable) position. If the program is

executed after being accidentally updated in this way the machine could operate unexpectedly, causing damage to the machine.

25. For the machine with the discrete type operation panel, always place the edit

enable key-switch in the (edit disable) position after completing program

entry. Be aware that the program will be updated if program editing operations

are carried out with the edit enable key-switch at the (edit enable) position.

If the program is executed after being accidentally updated in this way the machine could operate unexpectedly, causing damage to the machine.

26. For the machine with the touch panel, always return the WRITE PROTECT switch (PROGRAM) back to ON after completing program entry. Be aware that the program will be updated if program editing operations are carried out with the WRITE PROTECT switch (PROGRAM) set OFF. If the program is executed after being accidentally updated in this way, the machine could operate unexpectedly, causing damage to the machine.

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CAUTION

NOTE

27. Workpiece materials and shapes vary widely among machine users. Mori Seiki cannot predict the chucking pressure, spindle speed, feedrate, depth of cut, etc., that will be required in each case and it is therefore the user's responsibility to determine the appropriate settings.

Note also that the machining conditions determined in automatic programming are the standard conditions, which are not necessarily the most suitable for the user's purposes and may have to be changed in accordance with the workpiece, chuck, etc. The conditions determined in automatic programming are for reference only and the final responsibility for determining the conditions rests with the user. (Conversational NC specification)

If you have difficulty determining these conditions, consult the chuck and cylinder manufacturers and tool manufacturer. Machining under inappropriate machining conditions can cause the workpiece to come off the chuck during machining, causing damage to the machine. It will also adversely affect machining accuracy.

When mounting a rotary tool holder which is fixed on the turret head by bolting at two faces, pay sufficient care on the order of tightening the bolts. If the tool holder is not closely fit to the two mating faces of the turret head leaving a gap, accurate machining will be impossible. (Applies only to milling specification.)

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FOR SAFE OPERATION P-37

7-1 Safety Practices when Mounting/Removing a Chuck

WARNING

1. When mounting a chuck, chuck cylinder, or connection rod to the spindle, read the instruction manuals provided by Mori Seiki, the chuck manufacturer, and the chuck cylinder manufacturer. The considerations that must be attended to are given in the instruction manuals. If the chuck, chuck cylinder, or connection rod is mounted to the spindle without understanding these considerations, the chuck, chuck cylinder or connecting rod will be damaged, and if machining is carried out after such damage has occurred, a workpiece, the chuck, and/or chuck jaw could fly out, causing accidents involving serious injuries or damage to the machine.

2. If a workpiece holding fixture other than the chuck supplied with the machine is used, be sure to contact Mori Seiki to prevent accidents. Mori Seiki is not responsible for accidents caused by the use of a fixture prepared by the customer without consulting Mori Seiki.

3. If the chuck supplied with the machine is removed from the machine and a specially prepared fixture is used instead of the chuck to hold a workpiece, remove the chuck cylinder and the connecting rod if they do not operate due to the mounting of the special fixture. If the spindle is started with the chuck cylinder and the connecting rod still mounted, the connecting rod will vibrate and the connecting rod and the chuck cylinder could become detached, causing accidents involving serious injuries or damage to the machine.

4. Keep the pilot bush mounted in the chuck during machine operation.

If the machine is operated with the pilot bush removed, a master jaw or a jaw of the chuck could fly out, causing accidents involving serious injuries or damage to the machine.

5. The socket hole in the hex. socket head cap bolts used for mounting chuck jaws and fixtures will become enlarged over a long period of use. Check these hex. socket head cap bolts at regular intervals and if an hex. wrench does not fit in the socket hole, replace the bolt with new one.

If there is an excessive gap between the socket hole and hex. wrench, the bolt cannot be torqued correctly. If the machine is operated while a bolt is not torqued correctly, a workpiece, chuck jaw or a fixture could fly out, causing accidents involving serious injuries or damage to the machine.

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WARNING

6. The chuck or fixture that holds the workpiece must be secured to the spindle using the threaded holes in the spindle nose. Do not mount another chuck or fixture in the chuck or fixture that is mounted directly on the spindle. If a workpiece is held by a second chuck or fixture mounted in this way, it will not be held securely when the spindle rotates due to the centrifugal force acting on it, and the chuck or fixture will fly out. This could cause accidents involving serious injuries or damage to the machine.

If it is necessary to mount a chuck or fixture to hold a workpiece in the chuck or a fixture which is directly mounted to the spindle, contact Mori Seiki or the chuck manufacturer for the measures that should be taken.

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FOR SAFE OPERATION P-39

8 SAFETY PRACTICES WHEN CHUCKING A WORKPIECE

The workpiece gripping capacity of a chuck is lowered as the gripping faces of the chuck jaws become worn. Furthermore, the workpiece holding capacity of the chuck jaws is greatly influenced by the nature of the workpiece.

1. Heavy workpieces with a large diameter apply a large force to the chuck jaws and the force applied to the chuck jaws can exceed their workpiece holding capacity in some cases.

2. As the spindle speed increases, the forces acting on the workpiece to cause it to come off the chuck increase.

3. Improper maintenance, foreign matter, rusting, and inadequate greasing cause reduction of the workpiece holding capacity of the chuck.

Finally, the machining method determines both the exact force that will be applied to the workpiece and the chuck jaws, and whether this force exceeds the workpiece holding capacity of the chuck jaws.

Therefore, review the workpiece holding capacity of the chuck each time the job changes or at regular intervals if the same job is carried out continuously. Machining which generates forces exceeding the workpiece holding capacity of the chuck will cause the workpiece to come off the chuck while the spindle is rotating.

WARNING

1. A limit is imposed on chuck plunger thrust. If the plunger thrust exceeds the allowable value, the chuck could be damaged and the workpiece and chuck jaws could fly out of the chuck, causing serious injuries or damage to the machine.

For the allowable plunger thrust, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

2. The allowable chucking pressure must be set to a value lower than the cylinder pressure that generates the cylinder thrust allowable for the chuck, or the allowable cylinder pressure, whichever is the lower. If this restriction is not observed, the chuck and cylinder may be damaged. If the damage occurs while the spindle is rotating, the workpiece and chuck jaws will fly out, causing serious injuries or damage to the machine.

For the allowable maximum pressure of the chuck or the cylinder, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

3. Use only the specified bolts to mount the chuck and chuck jaws and tighten them to the specified torque. Check at regular intervals that the bolts are securely tightened. If the bolts are not tightened to the specified torque the workpiece might fly out, causing serious injuries or damage to the machine, and the chuck could be damaged.

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WARNING

4. If a thrust exceeding the allowable cylinder thrust is applied to the chuck, the component parts or bolts of the chuck will be damaged, causing loss of chuck gripping force. If this happens while the spindle is rotating, the workpiece or chuck jaws will fly out, causing serious injuries or damage to the machine.

For the allowable cylinder thrust, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

5. Take the height of the top jaw into consideration when determining the chucking pressure. If the height is greater than the standard height, reduce the cylinder thrust. If you fail to observe this warning, large forces will act on the top jaw mounting bolts and the master jaw, which could cause damage to the top jaw or master jaw. If trouble of this nature occurs while the spindle is rotating, the workpiece or chuck jaws will fly out, causing serious injuries or damage to the machine.

For the relationship between top jaw height and allowable cylinder thrust, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

6. When clamping or unclamping a workpiece in the chuck, ensure that your hands will not be trapped by the workpiece, soft jaws, or tailstock (if featured). If you work without sufficient care you could be seriously injured.

7. When machining long workpieces, always hold the free end of the workpiece securely with the tailstock (if featured) or a steady rest (if featured). If you do not support the free end the workpiece could bend or shake while the spindle is rotating, causing accidents involving serious injuries or damage to the machine.

8. The T-nuts in the chuck must not protrude from the master jaw. If they do the master jaw or T-nuts may be damaged, and machining accuracy will be impaired. Breakage of the T-nuts or master jaw while the spindle is rotating could cause accidents involving serious injuries or damage to the machine.

9. Mount soft jaws in the chuck in a well-balanced manner. Poor balance will cause runout of the spindle and could cause the soft jaws to fly out while the spindle is rotating, causing serious injuries or damage to the machine. It will also adversely affect machining accuracy.

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FOR SAFE OPERATION P-41

WARNING

10. Do not use top jaws with a serration of a different pitch from that of the master jaws. If such top jaws are used, the serration may be damaged when the workpiece is clamped in the chuck due to insufficient length of the areas of engagement. If the spindle is rotated after such damage has occurred, the workpiece and top jaws will fly out, causing serious injuries or damage to the machine.

11. Always use the T-nuts specified by the chuck manufacturer. If the bolts used to mount the top jaws cannot be screwed a sufficient depth into the T-nuts, the T-nuts may break.

Conversely, if the bolts protrude past the bottom faces of the T-nuts, it will not be possible to secure the top jaws by tightening the bolts. If one of these problems exists while the spindle is rotating, the workpiece and top jaws will fly out, causing serious injuries or damage to the machine.

12. Never leave the top jaws and/or T-nuts in the chuck after they have been loosened. If the spindle is started with the loose top jaws and T-nuts left in the chuck they will fly out, causing serious injuries or damage to the machine.

13. Only a qualified technician should perform hoisting work. Operation of the crane by a person unfamiliar with safe operation practices could cause accidents involving serious injuries or damage to the machine.

14. When two or more people are involved in workpiece hoisting work, they must cooperate carefully, communicating as fully as possible.

If one worker moves a machine element or operates the crane without noticing that there is another worker inside or near the machine, he could seriously injure that worker.

15. Use only wires, shackles and jigs of the dimensions specified in the manual. They must be strong enough to support the weight of the workpiece. If the workpiece is hoisted using equipment that cannot bear its weight, it will fall, causing serious injuries or damage to the machine.

16. Before lifting the workpiece, check that it is held securely. If it is not it will fall when hoisted, causing serious injuries or damage to the machine.

17. Make sure that the workpiece is well balanced in both the crosswise and lengthwise directions after hoisting it a little above the floor. If you continue to hoist the workpiece although it is not properly balanced, it will fall, causing serious injuries or damage to the machine.

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WARNING

CAUTION

18. Deburr soft jaws after shaping them. Switch off the power before starting the deburring work. If you do not switch the power off the machine could operate unexpectedly if someone carelessly interferes with the machine controls, causing serious injuries or damage to the machine.

19. Do not machine the counterbore depth of the soft jaw mounting bolts. This will weaken the soft jaws. In addition, the mounting bolts will contact the bottom of the master jaw T groove, making it impossible to hold the soft jaws securely. If a workpiece is clamped and the spindle is started in this condition the workpiece and soft jaws will fly out, causing accidents involving serious injuries or damage to the machine.

1. When soft jaws are used, they must be made of a softer material than the workpiece. If they are harder, the workpiece could be distorted or scratched.

2. Do not modify the chuck unnecessarily since this will adversely affect accuracy and functions and reduce the chuck service life.

3. Never subject the chuck, chuck jaws, or workpiece to shock by tapping them with a hammer, etc., since this will adversely affect accuracy and functions and reduce the chuck service life.

4. When machining is carried out using a bar feeder or bar supporter, close the front door while a workpiece is gripped in the chuck, set the spindle speed setting switch to the lowest setting, rotate the spindle in manual operation, gradually increase the spindle speed to the maximum speed used in the program, and check if any vibration is generated, If there is any vibration, take the following measures to eliminate it.

a) If bar materials to be machined is bent to an extent that exceeds the

allowable range specified by the bar feeder manufacturer, correct the bend.

b) Change the maximum spindle speed used in the program to a speed that

does not cause vibration of the machine body or the bar feeder.

c) Adjust the alignment of the machine and bar feeder.

d) Check that appropriate guide bushes are used in the spindle through-hole.

If the vibration cannot be eliminated by taking the measures listed above, contact the bar feeder manufacturer or Mori Seiki.

If machining is carried out under vibration being generated, this will cause damage to the machine. It will also seriously affect machining accuracy.

5. When stopping the machine for a long time after switching the power off, always remove the workpiece in the chuck. If the workpiece is left held in the chuck after the power has been switched off, its weight will cause the soft jaws to open and the workpiece will fall, causing damage to the machine. Leaving the workpiece in the chuck will also shorten the life of the chuck.

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FOR SAFE OPERATION P-43

CAUTION

6. Choose the machining conditions with particular care when shaping soft jaws, since this work involves intermittent machining. Inappropriate machining conditions could cause damage to the cutting tool or cause machining defects.

7. Before clamping a workpiece in the chuck, check using a pressure gage that the correct hydraulic or air pressure is supplied to the cylinder that actuates chuck operation. If no pressure is supplied or the pressure level is low, the workpiece will come off the chuck when the spindle is started, causing damage to the machine.

8. When clamping a workpiece in a 3-jaw chuck, the workpiece (finished faces) cannot be clamped stably if contact is only made at three points. If a workpiece is machined while clamped in this very unstable way, it may come off the chuck due to cutting resistance, causing damage to the machine.

The workpiece must be clamped at six points, or with face contact (jaws shaped to the shape of the workpiece).

9. Do not use excessively heavy jaws. If the spindle is rotated with top jaws heavier than the standard soft or hard jaws fixed to the chuck, the loss of chuck gripping force due to centrifugal force will be larger than the loss seen with standard chuck jaws; the loss increase is equal to the increase in centrifugal force corresponding to the difference in mass between the standard and heavy jaws. If the workpiece is machined under such conditions, it will come off the chuck, causing damage to the machine.

10. Clamp workpieces at the center of the master jaws' stroke or within their appropriate stroke range. If a workpiece is clamped in the chuck with the jaws positioned near the stroke end it will not be possible to clamp the workpiece securely and it may slip and come off the chuck as a result of impact during cutting, causing damage to the machine.

11. The machine user must take responsibility for setting the rotational speed of the chuck.

The allowable maximum speed of the chuck specified in the instruction manual or catalog prepared by the chuck and cylinder manufacturers is intended for reference purposes only. It will not guarantee safety under all operating conditions. The appropriate speed is influenced by the shape and mass of the top jaws, the chuck gripping force, the workpiece dimensions and shape, cutting force, and how the chuck is maintained and inspected. The machine user has responsibility for all these factors. If the spindle is rotated too fast under the given conditions the workpiece will come off the chuck, causing damage to the machine.

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CAUTION

12. If there is a gap between the workpiece rear end face and the chuck locator face or the jaw face on which the workpiece should be seated, and the workpiece rotation center line is tilted with respect to the chuck rotation center line, or if the workpiece has burrs on it (cast or forged workpiece), the depth of cut will exceed the planned amount and the cutting force will therefore exceed the workpiece holding capacity of the chuck. If such conditions apply while the spindle is rotating, the workpiece will come off the chuck, causing damage to the machine. If such a problem is anticipated, carry out test cutting at a low spindle speed to ensure safety.

13. Lubricate the chuck every day with the specified grease. If the chuck is not lubricated properly, problems such as reduced gripping force, abnormal chuck jaw wear, and seizure will occur. If machining is carried out under such conditions, the workpiece will come off the chuck, causing damage to the machine. Also note that the use of grease other than the specified grade will accelerate corrosion or wear, causing loss of gripping force.

14. Clean out any chips that accumulate inside the chuck.

Accumulation of chips inside the chuck reduces the gripping force and shortens the jaw stroke. If machining is carried out under such conditions the workpiece will come off the chuck, causing damage to the machine.

15. Give full consideration to the type of chuck and cylinder used when setting the chucking pressure. Even if the same hydraulic pressure is applied to the chuck, the chuck gripping force will vary according to the manufacturer and type of chuck and cylinder.

For details on the chuck gripping force, consult the chuck and cylinder manufacturers.

If the chuck gripping force is different from that intended, the workpiece could come off the chuck when the spindle is started, causing damage to the machine.

16. After forming soft jaws, close the front door while a workpiece is gripped in the chuck, set the spindle speed setting switch to the lowest setting, rotate the spindle in manual operation, gradually increase the spindle speed to the maximum speed used in the program, and check whether the workpiece gripping conditions are appropriate: check that the workpiece does not come out of the chuck, and that no vibration is generated. If machining is carried out although the workpiece gripping conditions are inappropriate, the workpiece will come off the chuck, causing damage to the machine. It will also seriously affect machining accuracy.

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FOR SAFE OPERATION P-45

9 SAFETY PRACTICES DURING MACHINE OPERATION

DANGER

WARNING

1. Confirm all cables are properly insulated prior to machine operation.

2. Do not operate with wet hands.

3. Confirm no personnel or obstacles remain inside protective covers or close to rotating or moving parts before starting machine operation.

2. Specify a tool spindle speed that is lower than the lowest of the individual allowable speed limits for the chuck, fixture, cylinder and cutting tool. If you do not follow this instruction, the workpiece or cutting tool could fly out of the machine, causing accidents involving serious injuries or damage to the machine.

3. There are cases where the spindle must not be rotated at the specified maximum speed due to the conditions related to the jig and the cutting tool, etc., even if the length, the diameter, and the mass of the cutting tool are all within the restrictions. If the spindle is rotated at a high speed exceeding the permissible spindle forcibly in such situation, the cutting tool will fly out, causing serious injuries or damage to the machine.

4. Clamp workpieces and cutting tools securely. Determine the cutting conditions for test cutting such as the depth of cut and the cutting feedrate from the conditions with some margins in consideration of safety. If you fail to observe this warning, the tool or workpiece could fly out of the machine, causing serious injuries or damage to the machine.

5. Do not start the spindle with the machine's left side cover or cylinder cover removed. If you fail to observe this warning you could be seriously injured by being entangled in the rotating parts of the machine.

6. Do not insert bar stock into the spindle while the spindle is rotating or you will be entangled in the machine. The length of the bar stock must be shorter than the spindle length unless a bar feeder is used. If the bar stock protrudes from the spindle it will increase spindle runout, and could bend, causing accidents involving serious injuries or damage to the machine.

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WARNING

7. When opening the front door and removing chips, make sure that spindle rotation is completely stopped. If you fail to observe this warning you could be seriously injured by being entangled in the spindle or lacerated by chips twined around the workpiece.

8. Never operate the machine with any of the covers removed. The rotating and moving parts of the machine will be exposed and you could be entangled in the rotating parts or crushed by the moving parts of the machine. In addition, coolant and chips will get inside the machine, and this could cause machine faults.

9. Do not lean against the machine while it is operating. If, for example, the workpiece or chuck jaws fly out of the chuck and strike a cover while you are leaning against it, you will receive the full impact of the blow and be injured.

10. Never leave anything on a moving part of the machine. If anything is left on a moving part, it may get caught in the moving part causing damage to the machine. If anything is placed on top of the machine, it may fall off when the machine vibrates causing accidents involving serious injuries.

11. A machine with special specifications must be operated in accordance with those specifications. If it is operated incorrectly it may operate in an unexpected manner, causing accidents involving serious injuries or damage to the machine.

12. Never attempt to reach inside the chip conveyor or put your feet in it while it is operating. You could be caught in the chip conveyor and seriously injured. (Applies only to machines equipped with a chip conveyor.)

13. Before adjusting the direction or the volume of coolant supply, be sure to secure your safety by stopping the machine and coolant supply or by wearing protective glasses. If an attempt at these operations is made while the machine is operating, you could be seriously injured by being entangled in the rotating parts of the machine or crushed by its moving parts.

14. When carrying out unmanned operation over extended periods, or machining using an inflammable coolant such as oil-based coolant or an inflammable workpiece, there is a likelihood of fire to occur. If a fire were to develop in the machine , it could cause accidents involving serious injuries or damage to the machine. Mori Seiki will not accept responsibility for the loss due to a fire. Install automatic fire extinguishing equipment and operate the machine using great caution for the prevention of fire.

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FOR SAFE OPERATION P-47

CAUTION

1. Before starting mass production, always check the program and perform test cutting in the single block mode. If you fail to do this the workpiece could collide with the cutting tool during machining, causing damage to the machine. Machining defects could also be caused.

2. In the case of machines that feature a hard-overtravel function, when a hardovertravel alarm has occurred, the interlock axis movement interlock can be released by pressing the 2nd O.T. release button. Be very careful not to move the axis in the wrong direction after pressing this button. If the axis is fed further in the direction in which hard overtravel occurred, the turret head and carriage may collide with the covers, causing damage to the machine. For the sake of safety, feed the axes using handle feed (×1) until the hard-overtravel alarm has been cleared.

3. Be aware that the program will be executed at an unexpected feedrate if the dry run function is made valid mistakenly during automatic operation, and this could cause damage to the machine.

4. When the emergency stop button or reset key has been pressed to stop the machine during a threading operation or a hole machining operation, especially a tapping operation, carefully feed the axes after checking the workpiece and cutting tool carefully for damage. If you feed the axes without due care, the workpiece and cutting tool may collide or interfere with each other, and this could cause damage to the machine.

5. Keep the chip conveyor operating all the time during automatic operation. If chips accumulate on the conveyor it will not be possible to expel them and the chip conveyor could be damaged. (Applies only to machines equipped with a chip conveyor.)

6. Do not press the reset key during background editing since automatic operation will be reset and the machine will stop suddenly: this could cause damage to the machine.

7. Before positioning the saddle to join it with the tailstock, first retract the X-axis in the positive direction so that the turret head and other machine elements will not interfere with the tailstock when the saddle is moved to the joint position. Interference could cause damage to the machine. (Applies only to machines with a programmable tailstock.)

8. Check that no abnormal noise or vibration is generated during machine operation. If there is any abnormal noise or vibration, determine the cause and take appropriate action.

Continuing to operate the machine without taking any action could cause machine faults. It will also adversely affect machining accuracy.

9. Specify a spindle speed limit that is lower than the lowest of the individual allowable speed limits for the chuck, fixture, and cylinder. If you do not follow this instruction, the workpiece could come off the chuck, causing damage to the machine.

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CAUTION

10. Clamp workpieces and cutting tools securely. Determine the depth of cut and cutting feedrate for test cutting with safe operation as the first priority; do not give priority to productivity when making these determinations. If you fail to observe this warning, the tool or workpiece could fly, causing damage to the machine.

11. Before pressing the automatic operation switch (cycle start) to start

automatic operation, make sure that the dry run function is invalid (OFF) and that all other switches, such as the spindle override switch, the rapid traverse rate override switch, and the feedrate override switch are set to the proper position. If automatic operation is started with the dry run function valid (ON) or any of the override switches set incorrectly, the axes could be fed in an unexpected manner and the spindle could be rotated at an unexpected speed, causing damage to the machine.

12. Some switches have transparent covers to prevent them from being pressed by mistake. Keep these covers closed except when actually pressing the switches. If a switch cover gets broken contact Mori Seiki. If these covers are kept open or are removed and a switch is pressed unintentionally, the machine will operate in an unexpected manner, causing damage to the machine.

13. Be aware that the machine will start automatic operation if the automatic

operation switch (cycle start) is pressed by mistake while the conditions

required to start automatic operation are satisfied and an automatic mode is selected. If this switch is pressed carelessly, automatic operation will start unexpectedly, and this could cause damage to the machine.

14. If the single block function is made valid during automatic operation, the next block is stored in the buffer register.

To stop the process currently being executed in order to execute another process in this condition (i.e., with the data for the next block stored in the buffer register), clear the data in the buffer register by pressing the reset key. If you attempt to execute another process while the data is still stored in the buffer memory, the machine will operate in an unexpected manner, and this could cause damage to the machine.

15. While the machine is temporarily stopped during machining – for example when checking a program, performing test cutting, or cleaning chips out of the machine – do not feed the axes or index the turret head in manual operation. Or, if it is absolutely necessary to do so, be sure to return the axes and turret to their original positions before restarting the program. If machining is restarted without returning them to their original positions, the turret will move in unexpected directions, causing collisions between the cutting tools, holders, or turret head and the workpiece, chuck, or tailstock (if featured), which could cause damage to the machine. The workpiece could also be machined with the wrong tool, and the cutting tool could be damaged.

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FOR SAFE OPERATION P-49

CAUTION

16. Before switching the machine lock function from "valid" to "invalid", wait until one program operation cycle has been completed. After switching from "valid" to "invalid", always execute a zero return operation. Switching between "valid" and "invalid" during program execution will create a discrepancy between the position designated in the program and the actual machine position, which could cause damage to the machine.

17. Never move the axes or rotate the turret head manually while the automatic operation is temporarily stopped. If it becomes necessary to do these manually, always return the axes or the turret to the previously located position before restarting the automatic operation.

If the automatic operation is restarted after indexing other tool or without returning to the previous position, a tool may be hit against the workpiece or the chuck, or other problem may occur, causing damage to the machine.

18. If abnormal vibration or chattering is generated during machining due to improper combination among jig, cutting tool, workpiece material, etc., change the machining conditions to proper values. If machining is continued forcibly under the machining conditions with improper values, it will bring critical problems for the machine and accuracy such that the bearings is damaged quickly and cutting tool is worn excessively will take place.

19. Do not rotate the tool spindle when it is clamped without a tool. Doing so could cause damage to the tool-spindle clamping unit.

(Applies only to the MT series.)

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P-50 FOR SAFE OPERATION

10 SAFETY PRACTICES DURING PROGRAMMING

The safety practices that the programmer must observe while programming are presented below. Read them before attempting programming.

Workpiece shapes and materials vary widely among machine users and, since the workpiece holding fixtures, cutting tools, cutting methods, and machining conditions will also vary accordingly, Mori Seiki cannot predict what factors will apply in individual cases. It is the machine user's responsibility to take these factors into account when creating a program. It is also the machine user's responsibility to ensure safety with respect to the hazards that may arise due to these user-dependent factors.

WARNING

CAUTION

1. Before starting spindle rotation, check that the workpiece is securely clamped. Or, if performing center-work, check that the tailstock spindle center securely supports the workpiece. (Applies only to machines equipped with a tailstock.)

If the workpiece is not securely clamped or supported, it will fly out when the spindle is rotated, causing serious injuries or damage to the machine.

2. Do not insert bar stock into the spindle while the spindle is rotating or you will be entangled in the machine. The length of the bar stock must be shorter than the spindle length unless a bar feeder is used. If the bar stock protrudes from the spindle it will increase spindle runout, and could bend, causing accidents involving serious injuries or damage to the machine.

2. Before starting mass production, always check the program and perform test cutting in the single block mode. If you fail to do this the workpiece could collide with the cutting tool during machining, causing damage to the machine. Machining defects could also be caused.

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3. When shifting the coordinate system in order to check a center-work program, set the shift direction and shift amount carefully to avoid interference between the turret and tailstock, which could cause damage to the machine. (Applies only to machines equipped with a tailstock.)

4. You will probably use a variety of workpiece shapes and materials, and the chucking method will differ according to the workpiece type. Therefore, when checking a program with the workpiece clamped in the chuck, check for interference carefully, taking the workpiece shape and material, and the chuck gripping force, into account. Depending on these factors, the cutting tool, holder, or turret head might interfere with the workpiece, chuck, fixture, or tailstock (if featured), causing damage to the machine.

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FOR SAFE OPERATION P-51

CAUTION

5. When the emergency stop button or reset key has been pressed to stop the machine during a threading operation or a hole machining operation, especially a tapping operation, carefully feed the axes after checking the workpiece and cutting tool carefully for damage. If you feed the axes without due care, the workpiece and cutting tool may collide or interfere with each other, and this could cause damage to the machine.

6. Do not discharge coolant while the spindle is not rotating.

In addition, take measures to ensure that coolant does not enter the spindle bearings when it is discharged while the spindle is rotating. If coolant enters the spindle bearings, the spindle will be damaged.

7. Support the workpiece securely before stepping on the chuck clamp/unclamp footswitch to remove it. If you step on the footswitch without taking this precaution the workpiece will fall and this could cause damage to the machine.

8. Specify a spindle speed limit that is lower than the lowest of the individual allowable speed limits for the chuck, fixture, and cylinder. If you do not follow this instruction, the workpiece could come off the chuck, causing damage to the machine.

9. Clamp workpieces and cutting tools securely. Determine the depth of cut and cutting feedrate for test cutting with safe operation as the first priority; do not give priority to productivity when making these determinations. If you fail to observe this warning, the tool or workpiece could fly, causing damage to the machine.

10. Always select the most appropriate cutting tool and holder for the material and shape of the workpiece to be machined and cutting method, and check that the workpiece can be machined without any problems.

If an inappropriate cutting tool or holder is selected, the workpiece could come off the chuck during machining, causing damage to the machine. Machining accuracy will also be adversely affected.

11. For the machine with the flat type operation panel, always place the operation

selection key-switch in the (operation enable) or (operation disable)

position after completing program entry. Be aware that the program will be updated if program editing operations are carried out with the operation selection

key-switch at the (operation & edit enable) position. If the program is

executed after being accidentally updated in this way the machine could operate unexpectedly, causing damage to the machine.

12. For the machine with the discrete type operation panel, always place the edit

enable key-switch in the (edit disable) position after completing program

entry. Be aware that the program will be updated if program editing operations

are carried out with the edit enable key-switch at the (edit enable) position.

If the program is executed after being accidentally updated in this way the machine could operate unexpectedly, causing damage to the machine.

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P-52 FOR SAFE OPERATION

CAUTION

13. For the machine with the touch panel, always return the WRITE PROTECT switch (PROGRAM) back to ON after completing program entry. Be aware that the program will be updated if program editing operations are carried out with the WRITE PROTECT switch (PROGRAM) set OFF. If the program is executed after being accidentally updated in this way, the machine could operate unexpectedly, causing damage to the machine.

14. Select the appropriate chucking pressure and tailstock spindle thrust force (applies only to machines equipped with a tailstock) for the workpiece shape and material, and the cutting conditions. If you cannot determine the appropriate chucking pressure, contact the chuck manufacturer or cylinder manufacturer. If you cannot determine the appropriate spindle thrust force (applies only to machines equipped with a tailstock), contact Mori Seiki. If the chucking pressure or spindle thrust force (applies only to machines equipped with a tailstock) is not set appropriately in accordance with the shape and material of the workpiece being machined and the cutting conditions, the workpiece could come off the chuck during machining, causing damage to the machine. Incorrect setting could also distort the workpiece.

For details on the chuck gripping force, consult the chuck and cylinder manufacturers.

If the chuck gripping force is different from that intended, the workpiece could come off the chuck when the spindle is started, causing damage to the machine.

16. Workpiece materials and shapes vary widely among machine users. Mori Seiki cannot predict the chucking pressure, spindle speed, feedrate, depth of cut, etc., that will be required in each case and it is therefore the user's responsibility to determine the appropriate settings.

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FOR SAFE OPERATION P-53

CAUTION

17. While the machine is temporarily stopped during machining – for example when checking a program, performing test cutting, or cleaning chips out of the machine – do not feed the axes or index the turret head in manual operation. Or, if it is absolutely necessary to do so, be sure to return the axes and turret to their original positions before restarting the program. If machining is restarted without returning them to their original positions, the turret will move in unexpected directions, causing collisions between the cutting tools, holders, or turret head and the workpiece, chuck, or tailstock (if featured), which could cause damage to the machine. The workpiece could also be machined with the wrong tool, and the cutting tool could be damaged.

18. If the program is input to the NC memory not by the programmer but by a machine operator, the operator may misread the numerical values and input incorrect values. This could cause damage to the machine; the workpiece could come off the chuck during machining, and the cutting tool, holder, or turret head, could interfere with the workpiece, chuck, fixture, or tailstock (if featured). It could also cause the workpiece being machined with the wrong tool, or cause damage to the cutting tool.

19. If you forget to enter a decimal point in a program entry that requires one and start the machine without noticing the error, the turret may move to an unexpected position, causing damage to the machine. Check that you have entered decimal points where necessary.

20. Do not change the spindle gear range while a cutting load is applied. The workpiece could come off the chuck, causing damage to the machine and the cutting tool. In addition, excessive loads will be applied to the machine motors and machine elements, shortening their service lives. (Applies only to machines equipped with a transmission.)

21. Before starting the spindle, carefully check the workpiece gripping conditions and the machining conditions, including the chucking pressure, spindle speed, cutting feedrate, and depth of cut. If you start the spindle without adequate checking, the workpiece could come off the chuck, causing damage to the machine.

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CAUTION

22. The chuck gripping force is reduced when the spindle is rotated since the rotation applies centrifugal force to the chuck jaws. This reduction of the chuck gripping force could cause the workpiece to come off the chuck during machining, causing damage to the machine. Therefore, when checking a program, measure the chuck gripping force that will actually be applied when the spindle is rotated at the speed used for machining by using a gripping force meter. If the measured chuck gripping force value is lower than that required to hold the workpiece safely, change machining conditions such as the chucking pressure, spindle speed, feedrate, and depth of cut.

Periodically measure the chuck gripping force with a gripping force meter to make sure that the required gripping force is maintained. If it is not, consult the chuck manufacturer and cylinder manufacturer.

For details on the relationship between the spindle rotation speed and chuck gripping force, refer to the instruction manuals prepared by the chuck manufacturer and cylinder manufacturer.

23. If abnormal vibration or chattering is generated during machining due to improper combination among jig, cutting tool, workpiece material, etc., change the machining conditions to proper values. If machining is continued forcibly under the machining conditions with improper values, it will bring critical problems for the machine and accuracy such that the bearings is damaged quickly and cutting tool is worn excessively will take place.

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11 TO ENSURE HIGH ACCURACY

The accuracy of the finished product cannot be maintained unless the following points are observed when operating the machine. Failure to observe these points can also cause serious injuries and damage to the machine. Study these points carefully before operating the machine.

FOR SAFE OPERATION P-55

WARNING

CAUTION

If the center of gravity of the workpiece does not coincide with the center of rotation for the chuck (non-circular workpieces, eccentric workpieces, etc.), fit a balancing weight to correct the balance and choose machining conditions such as spindle speed carefully. If the workpiece is rotated without correcting the balance it could fly out of the chuck, causing and serious injuries or damage to the machine. Failure to correct the balance will also adversely affect machining accuracy. If a balancer is fitted, do not rotate the spindle with no workpiece mounted to it. This will cause wear or seizure of the spindle bearing, causing machine faults.

2. When setting the tooling, refer to the turret interference diagram and axis travel diagram in DRAWINGS so as to avoid interference. In the case of machines with two spindles, also make sure there will be no interference during workpiece transfer. Careless tooling will cause interference between the tools and the workpiece, chuck, chuck jaws, covers, tailstock (if featured) or headstock 2 (if featured), which could cause damage to the machine.

3. Provide a chucking allowance that is large enough to ensure that the workpiece will not come out of the chuck due to cutting forces or the centrifugal force generated by spindle rotation. Depending on the shape of the workpiece, it may need to be supported by the tailstock (applies only to machines equipped with a tailstock). If the workpiece comes off the chuck during machining it could cause damage to the machine.

4. Workpiece materials and shapes vary widely among machine users, and Mori Seiki cannot predict the requirements for individual cases. Give full consideration to the workpiece material and shape in order to set the appropriate machining conditions. If inappropriate settings are used, the workpiece and cutting tool could fly during machining, causing damage to the machine. Inappropriate settings will also adversely affect machining accuracy.

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CAUTION

NOTE

5. When forged or cast workpieces are used, the cutting allowance with respect to the finished dimensions varies greatly. Either write a program which takes the variation into consideration or perform pre-machining so that a uniform cutting allowance is left on the workpiece. If this caution is not observed, the workpiece could come off the chuck during machining, causing damage to the machine. In addition, an excessive load could be applied to the cutting tool, breaking it.

1. When chucking or supporting a workpiece, take the rigidity of the workpiece into account when determining the chucking or supporting method and chucking pressure or tailstock thrust force (if a tailstock is featured), so as not to distort the workpiece. If the workpiece is distorted the machining accuracy will be adversely affected.

2. If any chips become entangled with the workpiece or cutting tool, surface roughness will be adversely affected. Select a cutting tool and machining conditions which do not cause entangling of chips.

3. When starting work and prior to machining, break in the spindle and each controlled axis. Using the machine without breaking it in first will cause thermal displacement, which will adversely affect machining accuracy.

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FOR SAFE OPERATION P-57

12 SAFETY PRACTICES DURING MAINTENANCE AND INSPECTION

12-1 Daily Maintenance

In order to keep the machine operating safely, it must be maintained and inspected daily. Observe the following points when carrying out the maintenance and inspection work.

DANGER

CAUTION

Always turn the power OFF before performing maintenance and inspection work. Or, if it is absolutely necessary to carry out the work with the power ON, exercise due caution since there is a danger of serious injury: you could receive an electric shock, be entangled by the rotating parts of the machine, or crushed by its moving parts.

1. After finishing work, clean the machine so that abnormalities can be found easily and inspect each part. If you find an abnormality, take appropriate action immediately. Failure to clean and inspect the machine will cause machine faults.

2. During dry machining or machining of cast workpieces, clean the machine so that chips do not accumulate. If the axes are fed after chips have accumulated, the chips will get into the slideway protection seals and this will cause machine faults.

3. Make sure that the gages on the oil temperature controller, lubrication oil pump, hydraulic equipment, pneumatic equipment, etc., indicate the correct values. Operating the machine when there is an incorrect indication could cause machine faults.

4. Make sure that lubricating oil is supplied to the slideways properly. If the axes are fed when lubricating oil is not being supplied, it will cause seizure of the ball screws and slideway wear, and will shorten the life of the machine.

5. Drain the air filter. If too much water builds up in the filter, its performance will be impaired, pneumatic equipment will operate incorrectly, and machine faults may be caused. (Applies only to machines equipped with pneumatic equipment.)

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12-2 Precautions When Performing Maintenance and Inspection Work

DANGER

1. Electrical wiring work should only be done by qualified electrical engineers. If a person with no knowledge of safety practices during electrical work undertakes wiring work, he/she could receive an electric shock.

2. Always switch the power OFF before mounting, removing, inspecting, or lubricating the chuck. If you carry out maintenance and inspection work with the power left ON, you could be entangled with the spindle and seriously injured if the spindle starts for some reason.

For details on chuck maintenance, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

3. Before attempting maintenance and inspection inside the electrical cabinet, be sure to turn OFF the power at the circuit breaker for the entire plant. Even when the main power switch on the electrical cabinet is turned OFF, parts of the cabinet may still have potential and may give an electric shock if accidentally touched.

4. Ensure the main power switch is turned [OFF] and locked at all times when performing maintenance procedures considered dangerous if the power is ON.

WARNING

For details on locking the main power switch, refer to the Main Power Switch in the MAINTENANCE MANUAL published separately.

1. Do not climb on top of the machine. If you lose your balance you could fall off and injure yourself.

2. Never attempt to reach inside the chip conveyor or put your feet in it while it is operating. You could be caught in the chip conveyor and seriously injured. (Applies only to machines equipped with a chip conveyor.)

3. Periodically disassemble and clean the chuck. Apply grease to the chuck every day. If chips or coolant enter the chuck, or if the grease runs out, the chuck gripping force will be reduced. If the spindle is rotated in this condition the workpiece will fly out, causing serious injuries or damage to the machine.

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FOR SAFE OPERATION P-59

WARNING

4. Before changing parts, always consult Mori Seiki to confirm the correct method. Use only genuine parts specified by Mori Seiki as replacement parts.

Mori Seiki cannot accept responsibility for any accident that arises as a result of replacing a part without consulting us about the correct method for replacement, or any accident that arises as the result of using parts not specified by Mori Seiki.

Using unspecified parts will not only impair the performance of the machine; it will also make the machine less safe and could cause accidents involving serious injuries or damage to the machine.

Carry out periodic inspections at the intervals specified in the periodic inspection list in the MAINTENANCE INFORMATION, and contact Mori Seiki if you discover any abnormality.

5. Bolts used for fixtures should be periodically replaced with the bolts with appropriate strength specified by Mori Seiki, since they will be fatigued by being tightened and loosened repeatedly. If same bolts are used without replacement, the bolts could break, causing the workpiece, fixture, or cutting tool to fly out during machining, which leads to serious injuries or damage to the machine.

6. When mounting or removing the chuck, use eye bolts and a lifting belt, and lift the chuck using a crane. After mounting or removing the chuck, be sure to remove the eye bolts and lifting belt from the chuck. If the spindle is rotated with the eye bolts and/or lifting belt attached to the chuck, they could catch on the operator and entangle him in the spindle, or they could fly out, causing serious injuries or damage to the machine.

For the procedure used to mount the chuck, refer to the instruction manuals prepared by the chuck and cylinder manufacturers.

7. If an abnormality such as a disconnection of the door lock status indicator or electronic buzzer occurs, stop using the machine and contact Mori Seiki Service Department. Since the door interlock control circuit is equipped with the disconnection detection function, the error is displayed until the NC power is shut off. If you operate the machine before canceling the error, the machine may operate in an unexpected manner, causing accidents involving serious injuries or damage to the machine.

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P-60 FOR SAFE OPERATION

WARNING

8. If it is necessary to carry out work inside the machine for cleaning or maintenance, turn OFF the power and keep the door open while working. If the operator is in the machine and the door is closed, the door will be mechanically locked and cannot be manually opened from inside the machine. If the machine is started in this condition, the operator inside the machine may be caught in the revolving or other moving parts, causing serious injuries.

9. When an alarm is triggered, it is necessary to open the electrical cabinet while the power is supplied for maintenance purposes. Contact the Mori Seiki Service Department for assistance as specialized knowledge is required for this purpose.

All activities and procedures for responding to the alarm are to be performed with extreme care by licenced electrical technicians with maintenance experience in strict accordance with the recommendations of the Mori Seiki Service Department.

10. If the machine employs a timing belt to drive the gravity axis, replace the timing belt once every 5 years. If the same timing belt is used without replacement, the axis could drop due to damage and wear of the belt, causing damage to the machine. Stop machine operation immediately and contact the Mori Seiki Service Department for assistance in the event of abnormality.

CAUTION

1. Do not overtighten bolts, since this could distort the machine or break the bolts, causing damage to the machine.

2. A drain hole is provided on the spindle front cover and the tailstock spindle front cover to keep coolant from entering the bearings of the spindle and the built-in type tailstock. These drain holes must be kept clean and unblocked with foreign matter.

When cleaning these holes, do not use compressed air.

If compressed air is used for cleaning, the drain hole may be blocked or coolant may enter the spindle bearing or tailstock spindle bearing, causing the bearings to seize up and damage to the machine.

3. When a hollow chuck is used, clean the coolant drain in the rear of the spindle periodically to prevent blocking with chips. If it is blocked, coolant will enter the hydraulic tank from the cylinder drain and this will cause machine faults.

4. The solenoid valves become very hot when the machine is operating. Be careful not to touch them soon after machine operation has finished since they could burn you.

5. Supply or change hydraulic oil and lubricating oil and clean the filters at the intervals specified in the Instruction Manual. Failure to change the oils and clean the filters will cause machine faults and shorten the life of the machine.

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FOR SAFE OPERATION P-61

CAUTION

6. Use only fresh, uncontaminated lubricating oil and hydraulic oil of the types specified in the Instruction Manual. Use of contaminated oil will cause machine faults.

7. Periodically clean the tanks and filters of all equipment and inspect the equipment and its piping for damage. Damage could cause machine faults.

8. Do not open the doors of the electrical cabinet or the operation panel except for maintenance purposes, since it will allow dust and moisture to enter, causing machine faults.

9. Do not touch the lamp that illuminates the interior of the machine since, if a halogen lamp or incandescent lamp is used, it will be very hot and will burn you. Also wait some time before touching the lamp after turning the power OFF.

10. Regularly inspect the slide protection seals and oil seals and replace them before their sealing characteristics are lost. If the slide protection seals or oil seals are damaged, it will not be possible to maintain a uniform oil film and foreign matter and dust will enter the machine (slideways, bearings, etc.); this could cause damage to the machine.

11. Carry out daily inspections and regular inspections in accordance with the instructions in the Instruction Manual. Failure to perform these inspections will shorten the life of the machine and adversely affect machining accuracy.

12. When using the service outlet (optional) on the operation panel for connecting an external device, the permissible current indicated on the rating plate must not be exceeded. If a device whose capacity exceeds the permissible current is used, the breaker in the electrical cabinet could be tripped, causing damage to the machine or machining defects.

13. On completing a job, clean the chuck and the inside of the machine. If chips accumulate in the machine over long periods, it will cause machine faults.

14. Make sure that the draw bar between the chuck and cylinder, and other threaded parts, are tightened securely. If the draw bar is not secure enough it will cause vibration and strength defects, which could cause damage to the machine. It will also adversely affect machining accuracy.

15. In order to open the electrical cabinet door, you must place the main power switch in the OPEN RESET position. If the main power switch is at a position other than OPEN RESET, it will not be possible to open the door. Attempting to force the door open in this situation could cause damage to the electrical cabinet door or the main power switch.

16. Periodically clean the fan and the filter in the electrical cabinet. If foreign matter adheres to the fan or filter the cooling performance may be impaired and this could cause electrical components to malfunction, causing damage to the machine.

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12-3 Disposal of Industrial Waste

CAUTION

Disposal of industrial waste such as oil, coolant, chips, and refrigerants is to be performed in strict compliance with safety and environmental protection laws as stipulated by the proper national and local authorities.

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FOR SAFE OPERATION P-63

13 PRECAUTIONS WHEN SELECTING COOLANT

There are a variety of types of coolant available on the market. Mori Seiki does not specify the type of coolant to be used. Choose a coolant suitable for your applications by consulting the supplier, taking the following requirements into consideration. Failure to observe the instructions below could damage the health of the machine operator and other personnel in the vicinity of the machine, and cause accidents involving serious injuries or damage to the machine. It will also adversely affect machining accuracy.

WARNING

Disregarding the following warnings will result in serious injuries and machine damage by fire. Mori Seiki is not responsible for accidents and fires arising from disregard for the warnings.

1. Do not use a flammable coolant such as an oil-based coolant that may catch fire. If there is no choice but to use a flammable coolant, it is the users' responsibility to deal with fires and accidents caused by the coolant.

2. If using a flammable coolant, do not carry out unmanned operation.

3. If using a flammable coolant, install appropriate automatic fire extinguishing equipment.

4. If using a flammable coolant, the coolant cooling system must be installed. Contact Mori Seiki.

5. If a flammable oil-based coolant is used, its viscosity will increase in cold temperatures, which may result in tripping of the coolant pump thermal relay. Although this problem will be cleared by using a coolant with a lower viscosity, such coolant may have a low ignition point, raising the risk of fire.

6. Recieve the MSDS (MATERIAL SAFETY DATA SHEET) from the coolant manufacturer directly yourself as the customer and use coolant without any chemical effects on the machine. Take careful note of the effects on the human body and the storage method described in the MSDS.

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CAUTION

1. Use coolant that satisfies the following conditions:

• Coolant must be free of constituents with adverse affects on human beings such as offensive smells or those that cause skin irritation.

• Coolant must not deteriorate during storage.

• Coolant must not include constituents that adversely affect machining

accuracy.

• Coolant must be free of constituents forming a dry film which deteriorates electric conductivity.

• Coolant must not corrode the machine.

• Coolant must not peel off machine coating.

• Coolant must not cause hardening or swelling of chemical parts (rubber

parts, synthetic resin parts, etc.).

• Coolant must not have electric conductivity equivalent to metal.

• Coolant must not be of high viscosity.

2. When using water-soluble coolant, observe the following points:

• Add diluted coolant mixture to coolant tank after mixing in a separate container.

• Do not mix water and concentrated coolant in the coolant tank.

• Use coolant at the concentration specified by the supplier. If coolant of

improper concentration is used, workability is degraded and rusting of the machine and workpiece occurs, causing damage to the machine and adversely affecting machining accuracy.

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FOR SAFE OPERATION P-65

14 MACHINING CHAMBER OBSERVATION WINDOW

The machining chamber observation window is of a polycarbonate and tempered glass construction. The polycarbonate construction enables effective protection in case of strong impact and the use of tempered glass prevents the window from becoming scarred due to repeated contact by cutting chips. The machining chamber observation window is a consumable component. Replace the window at regular intervals or when required as described below.

DANGER

1. Since operator safety cannot be guaranteed when the strength of the

window has decreased, replace the window at regular intervals (every 5 years). Regardless of the replacement interval, replace the window immediately in the following cases:

Do not use the machine with the window broken. Workpiece, chips or coolant may eject from the broken window resulting in serious injury.

Due to the hardness of the window, high-speed chip impacts can cause cracks. Small initial fractures may allow the entry of coolant which will degrade the polycarbonate and substantially weaken the window.

Even small initial cracks caused by impact may spread across the window due to the nature of the tempered glass.This is not a fault.

Replace the window immediately in case a strong impact was made to the window even though the window may appear unaffected. Once a window has been subjected to a strong impact, the strength of the window will decrease remarkably.

Do not use the machine with the restricted field of view from the window. Falling to confirm the progress inside the machining chamber may cause the accident resulting in serious injury and machine damage.

The machining chamber observation window is a consumable part and is not covered by the warranty.

When replacing the machining chamber observation window, contact Mori Seiki Service Department and use a window of the specified type. Mori Seiki does not accept responsibility for problems arising from the use of a non-specified window type.

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P-66 FOR SAFE OPERATION

DANGER

2. When observation the machining chamber from the window, do not bring your face too close to the window. The window is impactresistant and will be deformed to prevent the workpiece from breaking through the window in case the workpiece hits the window. If your face is too close to the window when the window is deformed, you may suffer injuries. Furthermore, if the impact is even stronger, the window may crash, causing injuries on your face.

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FOR SAFE OPERATION P-67

15 PRECAUTIONS ON INDUSTRIAL ROBOTS

DANGER

WARNING

Never operate the machine with the protective cover removed or while interlocks or other safety devices are ineffective, since the machine could operate in an unexpected manner, causing accidents involving serious injuries.

Contact Mori Seiki, the NC unit manufacturer or relevant equipment manufacturer immediately if the protective cover or safety devices are damaged.

1. Anyone operating an industrial robot with a Mori Seiki NC machine tool must strictly observe the applicable local regulations.

1) When installing an industrial robot, secure sufficient space around it to ensure that it can be operated safely and provide emergency stop buttons at easily accessible locations.

2) To prevent accidental contact between the operator and the industrial robot, install a protective cover around the operating range of the industrial robot, and an interlocking safety plug at the entrance. Mori Seiki supplies a safety fence, safety mat, etc., as accessories.

3) As part of your daily inspection before starting work, inspect the safety devices and the interlock function.

4) Only properly authorized persons trained and approved in accordance with local regulations may operate robots. Unauthorized persons may not operate a robot for any reason, including teaching and inspection. Anyone working with the robot operators must also be properly authorized. Mori Seiki cannot accept responsibility for any accident that occurs as a result of operation by a person who has not received such training.

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WARNING

2. Consult Mori Seiki before installing an industrial robot (a robot or a loader) with a Mori Seiki NC machine tool. Mori Seiki cannot accept responsibility as a manufacturer for installations (even if a Mori Seiki industrial robot/loader interface is used), additions, or modifications, performed without our consent. Nor is Mori Seiki responsible for accidental damage to the machine or injuries caused by Mori Seiki machine tools as a result of unauthorized additions or modifications.

For example, responsibility would lie with the user in the following cases (without limitation as to other possible cases):

1) Damage to the machine, and injuries caused by accidental contact between the operator and the industrial robot, occurring as a result of safety device failure.

2) Damage to the machine caused by an electric circuit failure between the industrial robot and the machine.

3) Electric circuit damage in the electrical cabinet caused by the power supply from the machine to the industrial robot.

4) Electric circuit damage or malfunction of the NC unit caused by failure of a signal circuit in the industrial robot.

5) Malfunction of the machine or the industrial robot when hydraulic or pneumatic pressure is supplied from the machine to the industrial robot, or injuries caused when the workpiece or fixture flies out of the chuck due to a reduction in hydraulic or pneumatic pressure.

6) Note that damage to, and malfunction of, the industrial robot caused by machine faults, and consequential accidents involving injuries, will be taken to be the customer’s responsibility, so you are urged to take due care.

3. With regard to machine tools equipped with industrial robots, the applicable regulations in the country where the machine is installed must be strictly observed. Mori Seiki cannot accept responsibility for any problems that arise as a result of the user's negligence of the applicable regulations.

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16 CAUTION LABELS ON THE MACHINE

FOR SAFE OPERATION P-69

WARNING

1. Important information is written on caution labels which are attached to the machine at locations where they can be seen easily. Caution labels contain critical information which must be strictly observed by all operators; failure to observe the information in the caution labels can cause serious accidents.

2. Caution labels are marked DANGER, WARNING, or CAUTION, depending on the seriousness of the hazard.

DANGER: Imminently hazardous situation – failure to follow the

instructions will cause serious injury or death.

WARNING: Potentially hazardous situation – failure to follow the

instructions could cause serious injury or death.

CAUTION: Potentially hazardous situation – failure to follow the

instructions could cause minor injuries, or in damage to the machine only.

3. Keep the caution labels clean so that operators can read them easily. If a label becomes soiled, clean it immediately.

4. Never remove the caution labels. If a label comes off, re-affix it at the original position.

5. Never fix anything on top of a caution label or paint over it.

6. If any part of a caution label becomes blurred or cannot be read easily, it must be replaced.

7. Use caution labels written in a language that the operators will understand.

For the languages of the caution labels, consult Mori Seiki, the NC manufacturer, or relevant equipment manufacturer.

8. In addition to the information given on caution labels, there is a variety of other cautionary information which must be observed by operators during machine installation, operation, and maintenance. This cautionary information appears in Instruction Manuals. Read all safety information carefully.

Failure to observe the warnings and cautions can cause serious injury to the machine operator or personnel in the vicinity, and damage to the machine. Always observe this information during machine installation, operation and maintenance.

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P-70 FOR SAFE OPERATION

17 CAUTIONS RELATING TO SPINDLE SPEED

The cautions that relate to spindle speed are given below. Observe these cautions during programming.

CAUTION

1. The spindle speed limit set using G50 must be no higher than the lowest of the individual allowable speed limits for the chuck, fixture, and cylinder. If you set a higher speed the workpiece will come off the chuck, causing damage to the machine.

2. In the G96 (constant surface speed control) mode, the spindle speed increases as the cutting tool approaches the center of the spindle.

Near the center of the spindle, the spindle speed will reach the allowable maximum speed of the machine. At this speed, the chuck gripping force, cutting force, and centrifugal force cannot be balanced to hold the workpiece securely in the chuck. As a result, the workpiece will come off the chuck, causing damage to the machine.

The spindle speed limit must always be specified in a part program by using the G50 command in a block preceding the G96 block, in order to clamp the spindle speed at the specified speed.

3. When a G97 speed command is used in a program, specification of the maximum speed with a G50 command will be ignored. Therefore, when specifying the spindle speed with a G97 command, specify a speed no higher than the lowest speed among the allowable speed limits for the chuck, fixture, and cylinder. If you set a higher speed the workpiece will come off the chuck, causing damage to the machine.

4. The setting of the spindle speed override switch (if there is one) is valid even when a spindle speed limit is set using G50.

If the switch is set to 110% or 120%, for example, the programmed spindle speed will be overridden in accordance with this setting. If this causes the actual spindle speed to exceed the allowable speed of the chuck, fixture, or cylinder, the workpiece will come off the chuck during machining, causing damage to the machine.

Therefore, the spindle speed override switch must be set at 100% or lower.

When the spindle speed control mode is switched from the G96 mode to the G97 mode, if

NOTE

no spindle speed is specified in the G97 block, the spindle speed obtained in the block immediately preceding the G97 block is used as the spindle speed for the G97 mode operation.

Therefore, if no spindle speed is specified in the G97 block, the spindle speed for the G97 mode will depend on the position of the cutting tool in the block preceding the G97 block, and this could adversely affect machining accuracy and shorten the life of the tool.

When switching the spindle speed control mode to the G97 mode, always specify a spindle speed.

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FOR SAFE OPERATION P-71

18 CAUTIONS RELATING TO THE RAPID TRAVERSE RATE

The cautions that relate to the rapid traverse rate are given below. Observe these cautions during programming.

CAUTION

1. If X- and Z-axis movements are specified in the same block in the G00 mode, the tool path is not always a straight line from the present position to the programmed end point. Make sure that there are no obstacles in the tool path, remembering that X- and Z-axis movement is at the rapid traverse rate. If the workpiece, fixture or tailstock (if featured) lies in the tool path, it could interfere with the tool, tool holder, or turret head.

Depending on the workpiece holding method, there could also be interference with the chuck and chuck jaws. This interference will cause damage to the machine.

2. When setting the G00 mode approach to the workpiece, determine the approach paths carefully, taking the workpiece shape and cutting allowance into consideration. The approach point in the Z-axis direction should be more than "chucking allowance + 10 mm" away from the workpiece end face.

When the spindle is rotating, centrifugal force acts on the chuck jaws, reducing the chuck gripping force. This can cause the workpiece to come out of the chuck.

Unless the approach point is at least "chucking allowance + 10 mm" away from the workpiece end face, the cutting tool could strike the workpiece while moving at the rapid traverse rate if the workpiece does come off the chuck, or if there is a large amount of material to be removed. This could cause damage to the machine.

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P-72 FOR SAFE OPERATION

19 CAUTIONS RELATING TO CENTER-WORK

The cautions that apply when carrying out center-work or both-center-work are given below.

Observe these cautions during programming. (Applies only to machines equipped with a tailstock.)

CAUTION

1. In a center-work program, if you program approach movement by specifying the X-axis and Z-axis commands in the same block in the G00 mode, the cutting tool could strike the tailstock.

For center-work, move the Z-axis first and then the X-axis to position the cutting tool at the approach point.

In the cutting tool retraction operation, retract the cutting tool in the X-axis direction first to a point where continuing cutting tool movement does not result in interference with the tailstock. After that, move the Z-axis to the required retraction position. (Applies only to machines equipped with a tailstock.)

2. In both-center-work, if the workpiece is supported with the center at the spindle side held by the chuck, do not use the M11 command. If the M11 is specified in a program when the center at the spindle side is held by the chuck, the center will fall or shift, which in turn will cause the workpiece to fall, causing damage to the machine. (Applies only to machines equipped with a tailstock.)

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FOR SAFE OPERATION P-73

20 CAUTIONS RELATING TO COORDINATE SYSTEM SETTING

The cautions that apply when setting the coordinate system are given below.

Observe these cautions during programming.

CAUTION

1. When setting the coordinate system using the machine coordinate system setting function, any mistake in specifying the X and Z values in the G50 block will cause interference between the cutting tool, tool holder, or turret head, and the workpiece, chuck, fixture, or tailstock (if featured), damage to the machine, or will cause the cutting tool failing to reach the cutting position.

2. When the coordinate system is set using G50, do not input the tool geometry offset data. If you input this data, the workpiece zero point will be shifted by the amount of the tool geometry offset data, which could cause interference between the cutting tool, holder or turret head and the workpiece, chuck, fixture, or tailstock (if featured), causing damage to the machine.

3. When the coordinate system is set using G50, the start and end points of the part program must be the same point.

At the end of a part program, the tool wear offset data of the cutting tool used to set the coordinate system must be canceled.

If you do not cancel the tool wear offset data, the X and Y coordinate values will be shifted by the tool wear offset data each time the program is executed. This will shift the start (end) point of the program, which could cause interference between the cutting tool, holder or turret head and the workpiece, chuck, fixture, or tailstock (if featured), causing damage to the machine.

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P-74 FOR SAFE OPERATION

21 CAUTIONS RELATING TO G CODES

The cautions that relate to G codes (also called "preparatory codes") are given below.

Observe these cautions during programming.

CAUTION

NOTE

1. Never specify "G28 X0 Z0;" to return the axes to the machine zero point, since the axes will first be positioned at the workpiece zero point (X0, Z0) and then moved to the machine zero point, and this may cause the cutting tool to strike the workpiece.

Instead, specify "G28 U0 W0;" to return the axes directly from the present position to the machine zero point.

2. In the G98 mode, the turret moves at the feedrate specified by the F code even when the spindle is not rotating. Make sure that the cutting tool will not strike the workpiece, etc., since this could cause damage to the machine.

3. When using the stored stroke limit function, always execute a machine zero return operation after switching the power ON, otherwise the function will not be valid. If the machine is operated in this condition it will not stop even if the cutting tool enters the prohibited area, and this could cause damage to the machine (stored stroke limit specification).

1. When specifying G codes in a block, they must be placed before the addresses (other than G and M) which are executed under the mode they establish. If a G code is specified after addresses for which it establishes the mode of processing, the mode established by it is not valid to these addresses.

2. When executing a dwell using the G04 command, if the cutting tool is kept in contact with the workpiece at a position such as the bottom of a groove for a long time it will shorten the life of the tool nose as well as adversely affecting machining accuracy.

The dwell period should be the time it takes for the spindle to rotate approximately one turn.

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22 CAUTIONS RELATING TO M CODES

The cautions that relate to M codes (also called "miscellaneous codes") are given below. Observe these cautions during programming.

FOR SAFE OPERATION P-75

CAUTION

1. Do not stop the spindle or rotary tool spindle (milling specification) by specifying the M05 command while the cutting tool is in contact with the workpiece. This could cause damage to the cutting tool.

2. Start the spindle or rotary tool spindle by executing either the M03 or M04 command or the M13 or M14 command (milling specification) before the cutting tool comes into contact with the workpiece. If the cutting tool is brought into contact with the workpiece while it is not rotating, it could be damaged.

3. Always specify an M05 command to stop spindle rotation before using a pull-out finger or workpiece pusher, etc. If spindle rotation is not stopped the machine could be damaged.

4. When the M73 command is specified, make sure that the turret head or headstock 2 spindle (applies only to machines equipped with two spindles) is retracted to a position where it will not interfere with the parts catcher when it swings out to the chuck side position. Interference could cause damage to the machine.

5. When the automatic door is closed by specifying the M86 command, make sure that your fingers, etc., do not get caught in the door and that there are no obstacles that will prevent the door from closing. If your fingers are caught in the door you could be injured.

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Comment Form

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Page 82

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mori seiki NC LATHES User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual