Optimum B 24 H, B 28 HB, B 28 H Operating Manual

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Page 1

OPTIMUM

B 28 HB (16" Item No. 3020252)

MASCHINEN - GERMANY

Operating Manual

Version 2.1.7

Bench drilling machine

B 24 H (13" Item No. 3020244)

Upright drilling machine

B 28 H (16" Item No. 3020284) B 28 H Vario (16" Item No. 3020288)

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Keep for future reference!

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1Safety

1.1 Safety warnings (warning notes) .................................................................................. 6

1.1.1 Classification of hazards ...................................... ... ... ... .... ... ... ... ... .... ............6

1.1.2 Other pictograms ...........................................................................................7

1.2 Proper use ....................................... ....................................... ... ... .... ... ... ... ...................8

1.3 Possible dangers caused by the bench drill and upright drill ........................................ 8

1.4 Qualification of employees ........................................................................................... 9

1.4.1 Target group ..................................................................................................9

1.4.2 Authorized persons .......................................... .... ... ... ... ................................ 9

1.5 Safety measures during operation .............................................................................. 10

1.6 Safety devices ............................................................................................................ 10

1.7 Safety check ...............................................................................................................11

1.8 EMERGENCY-STOP button ........... ... .... ... ... ... .... ... ... ... ... .... ... .................................... 12

1.9 Drilling table ........................... .... ... ... ... .... ... ... ... .... ......................................... .... ... .......12

1.10 Separating protective devices .................................................................................... 13

1.10.1 Protective cover of the belt pulleys ..............................................................13

1.10.2 Drill chuck guard .......................................................................................... 13

1.11 Personal protective equipment ...................................................................................13

1.12 Safety during operation ..............................................................................................14

1.13 Safety during maintenance ......................................................................................... 14

1.13.1 Switching-off and securing the bench drill and upright drill .........................14

1.14 Use of lifting equipments ............................................................................................15

1.14.1 Mechanical maintenance work .................................................................... 15

1.15 Accident report ...................... .... ... ... ... .......................................... .... ... ... ... ... .... ..........15

1.16 Electrical .....................................................................................................................15

2 Technical Data

2.1 Power connection ....................................................................................................... 16

2.2 Drilling capacity .................. ... .... ... ... ... .... ... ... ... .......................................... ... .... ..........16

2.3 Spindle ................................... .................... ................... .................... ................... .......16

2.4 Drilling machine table ......... ... .... ... ... ... .... ... ... .......................................... ... ... .... ... ... ... . 16

2.5 Required space ......................... ... .......................................... ... ... .... ... ... ... .................17

2.6 Speeds .......................................................................................................................17

2.7 Environmental conditions ...........................................................................................17

2.8 Operating material ...................................................................................................... 17

2.9 Emissions ...................................................................................................................17

2.10 Dimensions B24H .......................................................................................................19

2.11 Dimensions B28HB ....................................................................................................20

2.12 Dimensions B28H .......................................................................................................21

2.13 Dimensions B28H Vario ............................................................................................. 22

3 Assembly

3.1 Scope of delivery ........................................................................................................ 23

3.2 Transport .................................................................................................................... 23

3.3 Storage .......................................................................................................................24

3.4 Installation and assembly ...........................................................................................25

3.4.1 Site requirements ....................... ... ... .... ... ... ... .......................................... ... . 25

3.4.2 Assembly ................................. ............................. ............................. .......... 2 6

3.4.3 Assembly of the drilling machine table B24H (B28H B) ..............................27

3.4.4 Assembly of the drilling machine table B28H (Vario) ..................................27

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3.5 Installation .................................................................................................................. 29

3.5.1 Mounting ..................................................................................................... 30

3.5.2 Installation drawings .......... ... ... .... ... ... ... .... ......................................... .... ... .. 31

3.6 First use ....................................................................................................................33

4 Operation

4.1 Safety ......................................................................................................................... 34

4.2 Control and indicating elements ................................................................................. 34

4.2.1 Bench drill and upright drill B24H ................................................................ 34

4.2.2 Bench drill and upright drill B28HB ............................................................. 35

4.2.3 Bench drill and upright drill B28H (Vario) ........................... ......................... 35

4.2.4 Control panel B24H ..................................................................................... 36

4.2.5 Control panel B28H (Vario), B28HB ............................................................ 36

4.3 Turn the machine on B24H / B28H / B28HB .............................................................. 38

4.4 Turn the machine on B28H Vario ............................................................................... 38

4.5 Turn the machine off B24H / B28H / B28HB .............................................................. 38

4.6 Turn the machine off´B28H Vario ............................................................................... 38

4.7 Speed variation .......................................................................................................... 39

4.7.1 Speed table B24H ....................................................................................... 40

4.7.2 Speed table B28H - B28HB ........................................................................ 40

4.7.3 Speed table B28H Vario ............................................................................. 41

4.8 Drill depth stop ........................................................................................................... 41

4.9 Removing, mounting of drill chucks and drills ............................................................ 42

4.9.1 Keyless drill chuck ....................................................................................... 42

4.9.2 Removing the drill chuck ............................................................................. 42

4.9.3 Removing the tool or drill chuck with the integrated drill drift on the B28H (B, Vario) 43

4.9.4 Mounting the drill chuck B24H and B28H (B, Vario) ................................... 43

4.10 Cooling ....................................................................................................................... 44

4.11 Before starting the working process ........................................................................... 45

4.12 During the working process ........................................................................................ 45

5 Determining the cutting speed and the speed

5.1 Table cutting speeds / infeed ..................................................................................... 46

5.2 Speed table ................................................................................................................ 46

5.3 Examples to calculatory determine the required speed for your drilling machine ...... 48

6 Maintenance

6.1 Safety ......................................................................................................................... 50

6.1.1 Preparation ................................................................................................. 50

6.1.2 Restarting ........................................ ................................ ............................ 50

6.2 Inspection and maintenance ...................................................................................... 50

6.3 Repair ............................. ................................................ ............................................ 53

7 Spare parts - B24H, B28H, B28HB, B28H Vario

7.1 Exploded view B24H .................................................................................................. 54

7.1.1 Drilling head B24H ...................................................................................... 54

7.1.2 Column and drilling table B24H ................................................................... 55

7.1.3 Pulleys B24H .............................................................................................. 56

7.1.4 Parts list B24H ............................................................................................ 56

7.2 Wiring diagram B24H - 115V, 60 Hz .......................................................................... 59

7.3 Exploded view B28H, B28H B .............................. .... ... ... ... ... .... ... ... ... .... ... ... ... ... .... ... .. 60

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7.3.1 Drilling head B28H, B28HB ......................................................................... 60

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7.3.2 Column and drilling table B28H ................................................................... 61

7.3.3 Column and drilling table B28HB ................................................................ 62

7.3.4 Pulleys B28H, B28HB .................................................................................63

7.3.5 Parts list B28H, B28HB ............................................................................... 64

7.4 Exploded viewB28H Vario .......................................................................................... 67

7.4.1 Drilling head B28H Vario .............................................................................67

7.4.2 Column and drilling table B28H Vario .. ... ... ... ... ....... ... ... .... ... ... ... ... .... ... ... ... . 68

7.4.3 Pulleys B28H Vario .....................................................................................69

7.4.4 Parts list B28H Vario ...................................................................................70

7.5 Wiring diagram B28H (B) - 115V, 60Hz ........................... .... ... ... ... .... ... ... ... ... .... ... ... ... . 73

7.6 Wiring diagram B28H Vario - 230V, 60Hz .................................... .... ... ... ... ... .... ... ... ... . 74

7.7 Wiring diagram B28H Vario - 230V, 60Hz ................................. ... .... ... ... ... ... ..............75

8 Troubleshooting 9 Appendix

9.1 Copyright .................................................................................................................... 78

9.2 Terminology/Glossary ................................ .......................... ...................... ................. 78

9.3 LIMITED WARRANTY ...............................................................................................79

10Index

Preface

Changes The illustrations of the bench drill and upright drill might in some details deviate from the illustra-

tions of this operating manual but this will have no influence on the operation of the bench drill and upright drill.

Any changes in the construction, equipment and accessories are reserved for reasons of enhancement. Therefore, no claims may be derived from the indications and descriptions. Errors excepted!

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Safety

1 Safety

Glossary of symbols

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MASCHINEN - GERMANY



 calls on you to get in action

 enumeration

This part of the operating manual

 does explain the meaning and how to use the warning references contained in this operating

manual,

 does explain how to use the bench and upright drilling machine,  highlights the dangers that might arise for you and others if these instructions are not fol-

lowed thoroughly,

 informs you on how to prevent dangers.

In addition to this operating manual, please note

 applicable laws and regulations,  legal regulations for preventing an accident,  the prohibition, warning and mandatory signs as well as the warning notes on the bench drill-

ing machine.

Consult OSHA, state and local regulations in order to determine compliance, danger and risks to the operator.

ALWAYS KEEP THIS DOCUMENT CLOSE TO THE BENCH DRILL AND UPRIGHT DRILL FOR FUTURE REFERENCE.

gives further advice

INFORMATION

If you are unable to solve a problem using this manual, please contact us for advice:

Exclusive USA Agent LDS Industries, LLC 930 W. National Ave. Addison, IL 60101 Tel.: 1-630-785-6437

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1.1 Safety warnings (warning notes)

1.1.1 Classification of hazards

We classify the safety warnings into various le vels. The table below gives an overview of the classification of symbols (pictogram) and warning signs for each specific danger and its (possible) consequences.

Pictogram warning alert definition/consequence

Safety

DANGER!

WARNING!

CAUTION!

ATTENTION!

Information

In the case of specific dangers, we replace the pictogram

Threatening danger that will cause serious injury or death to people.

Risk: A danger that might cause serious injury or death to a person.

Danger or unsafe procedure that might cause injury to people or damage to property.

Situation that could cause damage to the machine and to the product and other types of damages.

No risk of injury to people.

Application advice and other important or useful information and notes.

No dangerous or harmful consequences for people or objects.

General danger

with a warning ofinjuries to

hands,

hazardous electrical voltage

rotating parts.

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Safety

1.1.2 Other pictograms

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Warning of automatic start-up!

Activation forbidden!

Use protective boots!

Wear a safety suit! Protect the environment!

Use safety glasses! Contact address

Disconnect main power!

Use ear protection!

Use protective gloves!

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1.2 Proper use

WARNING! In the event of improper use of the bench drill and upright drill

• there may be a risk to personnel,

• there may be a risk to the machine and other items, correct functioning of the bench drill and upright drill may be affected.

The bench drill and upright drill is designed and manufactured to be used in environments where there is no potential danger of explosion. The bench drill and upright drill is designed and manufactured to produce holes in cold metal or other not health hazardous or not burnable material by using a rotating cutting tool with several chucking grooves.

If the bench drill and upright drill is used in any way other than prescribed above, modified without authorization of Optimum Maschinen Germany GmbH, then the bench drill and upright dr ill is being used improperly.

We do not take liability for damage caused through improper use. We would like to accent that any modifications to the construction, or technical or technological

modifications that have not been authorized by Optimum Maschinen Germany GmbH will also expire the guarantee.

It is also part of proper use that

Safety

 the maximum values of the bench drill and upright drill are complied with,  the operating manual is constantly observed,  inspection and maintenance instructions are observed.

 „Technical Data“ on page 16

WARNING! Very serious injury due to improper use.

It is forbidden to make any modifications or alternations to the operating values of the bench drill and upright drill! They could endanger employees and cause damage to thebench drill and upright drill.

1.3 Possible dangers caused by the bench drill and upright drill

The bench drill and upright drill is state of the art. Nevertheless, there is a residual risk as the bench drill and upright drill operates with

 high revolutions,  rotating parts,  electrical voltage and currents.

We have used construction resources an d safety techniques to minim ize the health risk to persons resulting from these hazards.

If the bench drill and upright drill is used and maintained by employees who are poorly qualified, then there might be a risk resulting from incorrect operation and unsuitable maintenance of the bench drill and upright drill.

INFORMATION

Everyone involved in the assembly, commissioning, operation and maintenance must

 be duly qualified,  strictly follow this operating manual.

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Safety

Due to improper use

 there is a risk for the employee,  the machine and further property might be endangered,  the function of the bench drill and upright drill could be effected.

Always disconnect the bench drill and upright drill if cleaning or maintenance work is being carried out.

WARNING! The bench drill and upright drill may only be used with the safety devices activated.

Disconnect the bench drill and upright drill immediately whenever you detect a failure in the safety device or when they are not mounted!

All additional installations carried out by the operator must incorporate the safety devices prescribed.

This is your responsibility being the operator!

 „Safety devices“ on page 10

1.4 Qualification of employees

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MASCHINEN - GERMANY

1.4.1 Target group

This manual applies to

 the operators,  the users,  the maintenance staff.

Therefore, the warning notes refer to both operation and maintenance of the bench drill and upright drill.

Determine clearly and make a permanent decision in who will be responsible for the different activities on the machine (operation, maintenance and repair).

Vague and unclear assignment of responsibilities constitute a safety hazard! Always disconnect the bench drill and upright drill from the main electrical power supply. This

will prevent your machine from being used by unauthorized personnel.

1.4.2 Authorized persons

WARNING! Incorrect use and maintenance of the bench drill and upright drill constitute a danger for

the staff, objects and the environment. Only authorized persons may operate the bench drill and upright drill!

Persons authorized to operate and maintain should be trained technical staff and instructed by the ones who are working for the operator and for the manufacturer.

The operator must

Obligations

of the

operator

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 train the staff,  instruct the staff in regular intervals (at least once a year) on

- all safety standards that apply to the bench drill and upright drill,

- the operation,

- accredited technical guidelines,

 check the knowledge of the staff,

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 document training / instructions,  require the staff to confirm participation in training / instructions by means of a signature,  check if the staff is aware of safety rules and dangers in the workplace so that they observe

the operating manual.

The user must

Safety

Obligations

of the user

Further

require-

ments to the

qualification

 have followed a training on the operation of the bench drill and upright drill,  know the function and performance,  before commissioning

- have read and understood the operating manual,

- be familiar with all safety devices and regulations.

For working on the following machine parts, additional requirements are being applied:

 Electrical parts or operating agents: shall only be performed by an electrician or under the

guidance and supervision of an electrician.

Before starting work on electrical parts or operating agents, following measures are to be performed in the following order:

Disconnect main electrical power. Ensure that the machine cannot be turned on again. Check that there is no voltage.

1.5 Safety measures during operation

CAUTION! Risk due to inhaling of health hazardous dusts and mist.

Dependent on the material which need to be processed and the used auxiliarie s dusts and mist may be caused which might impair you health.

Make sure that the generated health hazardous dusts and mist are safely sucked off at the point of origin and is dissipated or filtered from the working area. Use an appropriate suction unit.

CAUTION! Risk of fire and explosion by using flammable materials or cooling lubricants.

Take additional preventive measures in order to safely avoid health hazards before processing flammable materials (e.g. aluminum, magnesium) or before using flammable additives (e.g. solvents).

1.6 Safety devices

Operate the bench drill and upright drill only with properly functioning safety devices. Stop the bench drill and upright drill immediately if there is a failure in the safety device or if it is

not functioning for some reason. It is your responsibility! If the safety device has been activated or has failed, the bench drill and upright drill must only be

operated again when

 the cause of the failure has been removed,  you have made sure that there is no existing danger for persons or objects.

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Safety

WARNING! If you bypass, remove or override a safety device in any other way, you are endangering

yourself and other persons working on the bench drill and upright drill. The possible consequences are the following

• injuries due to components or parts of components flying off a high speed,

• contact with rotating parts,

• fatal electrocution.

WARNING! The separating protective equipment which is made available and delivered together with

the machine is designed to reduce the risk of workpieces or fractions of them which being expelled, but not to remove them completely.

The bench drill and upright drill includes the following safety devices:

 an EMERGENCY-STOP button,  a drilling machine table with T-slots to fasten the workpiece or a vice,  a protective cover for the pulleys with positioning switch.

1.7 Safety check

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MASCHINEN - GERMANY

Check the bench drill and upright drill at least once per shift. Inform the person responsible immediately of any defect or change in the operation function.

Check all safety devices

 at the beginning of each shift (with the machine stopped),  once a week (with the machine in operation),  after every maintenance and repair work.

Check that the prohibition, warning and information labels as well as the markings on the bench drill and upright drill

 are legible (clean them, if necessary),  are complete.

INFORMATION

Use the following overview to organize the inspections.

General inspection Item Inspection OK

Protective cover Mounted, securely tightened and not damaged Signs, markings Installed and legible

Date: Inspector (signature):

Functional test Item Inspection OK

EMERGENCY-STOP push button

Date: Inspector (signature):

Once the emergency stop button is activated, the bench drill and upright drill should be switched off.

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EMERGENCY-

STOP button

T-slots for clamping

blocks

(14 mm (0.55"))

MASCHINEN - GERMANY

Functional test Item Inspection OK

Safety

Stop position switch protective cover V-belts

drill chuck guard The bench drill and upright drill must only switch on when

Date: Inspector (signature):

The bench drill and upright drill must not switch on, if the protective cover of the pulleys is opened.

the drill chuck protection is closed.

1.8 EMERGENCY-STOP button

CAUTION! After actuating the EMER-

GENCY-STOP button, the drill spindle will turn for a few seconds more, depending on the previously selected speed.

Img.1-1: EMERGENCY-STOP B24H, B28HB

B28H (Vario)

1.9 Drilling table

The drilling table is equipped with T-slots for clamping blocks.

WARNING! Risk of injury due to parts

flying off at high speed. Securely fix the workpiece on the drilling table.

Img.1-2: Drilling table

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Safety

protective

cover

clamping screw

drill chuck protection

1.10 Separating protective devices

1.10.1 Protective cover of the belt pulleys

A protective cover for the belt pulleys is mounted on the drilling head. A switch is integrated in the protective cover which monitors that the cover is closed.

INFORMATION

YOU CANNOT START THE MACHINE IF THE PROTECTIVE COVER IS NOT CLOSED.

1.10.2 Drill chuck guard

Adjust the drill chuck guard to the correct height before you start working.

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MASCHINEN - GERMANY

Img.1-3: Protective cover

To do so, detach the clamping screw, adjust the required height and retighten the clamping screw.

A switch is integrated in the fixture of the drill chuck guard which monitors that the cover is closed.

INFORMATION

YOU CANNOT START THE MACHINE IF THE DRILL CHUCK GUARD IS NOT CLOSED.

1.11 Personal protective equipment

For certain work, personal protective equipments is required. Such as:

 Safety helmet,  Safety glasses or face guard,  Protective gloves,  Safety shoes with steel toe caps,  Ear protection.

Before starting work, make sure that the prescribed personal protective equipment is available at the workplace.

Img.1-4: Drill chuck guard

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CAUTION! Dirty or eventually contaminated personal protective equipments might cause disease.

Clean your personal protective equipment

• after each use,

• regularly, at least once a week.

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Personal protective equipment

Protect your face and your eyes: Wear a safety helmet with a face guard for every work, especially for the kind of work where your face and eyes are exposed to hazards.

Use protective gloves when lifting or handling pieces with sharp edges.

Wear safety shoes when fitting, dismantling or transporting he a vy com p on e nts.

1.12 Safety during operation

In the description of work with and on the bench drill and upright drill we highlight the dangers specific to that work.

WARNING! Before activating the bench drill and upright drill, double-check that

• staff will not be endangered,

• no damage is caused to equipment.

Safety

Avoid unsafe working practice:

 Make sure that your work does not endanger anyone.  The instructions of this manual must be observed strictly during assembly, operation, mainte-

nance and repair.

 Do not work on the bench drill and upright drill if your concentration is reduced, for example,

because you are taking medication.

 Observe the regulations for the prevention of accidents issued by your association for the

prevention of accidents and safety in the workplace or other inspection authorities.

 Inform the inspector of any danger or failure.  Stay at the machine until all rotating parts have come to a halt.  Use the prescribed personal protective equipment. Make sure to wear a well-fitting work suit

and a hairnet, if necessary.

 Do not use protective gloves when drilling.

1.13 Safety during maintenance

Inform the operating staff on time of any repair and maintenance work. Report all safety-relevant changes or performance details of the bench drill and upright drill.

Document all changes, have the operating manual changed accordingly and train the machine operators.

1.13.1 Switching-off and securing the bench drill and upright drill

Turn the bench drill and upright drill off using the main switch and use a padlock to prevent the switch from being turned on without authorization or by accident. Keep the key in a safe place.

All machine components and hazardous voltages are disconnected. Only the points marked with this pictogram are not included.

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Page 15

Safety

1.14 Use of lifting equipments

WARNING! Use of unstable lif ting and load-suspension gear that might break under load can cause

very serious injuries or even death. Check the lifting and load-suspension gear on

• sufficient load capacity,

• perfect condition. Observe the regulations for the prevention of accidents issued by your association for

the prevention of occupational accidents and safety in the workplac e or other inspection authorities.

Fasten the loads properly. Do not walk under lifted loads !

1.14.1 Mechanical maintenance work

Remove all protection and safety devices before starting maintenance w ork and re-install them once the work has been completed, such as:

 Covers,  Safety indications and warning signs,  Earth (ground) cables.

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MASCHINEN - GERMANY

If you remove protection or safety devices, refit them immediately after completing the work. Check if they are working properly!

1.15 Accident report

Inform your superiors and LDS Industries immediately in case of accidents, possible sources of danger and any action which almost lead to an accident "Near misses".

"Near misses" may have many possible causes. The sooner they are notified, the faster these causes can be eliminated.

1.16 Electrical

Have the machine and / or the electrical equipment checked regularly, at least every six months. Eliminate immediately all defects such as loose connections, defective wires, etc. A second person must be present during work on live components, to disconnect the power in

case of an emergency. Disconnect the bench drill and upright drill immediately if there is a malfunction in the power

supply!

 „Maintenance“ on page 49

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2 Technical Data

The following data which give dimensions and weight are the manufacurer’s authorized machine data

Technical Data

2.1 Power connection

Motor input capacity

2.2 Drilling capacity

Drilling capacity in steel 20mm (0.787") 28mm (1.102")

Throat 165mm (6.496“) 200mm (7.874")

Spindle travel lifting 85mm (3.346") 105mm (4.134")

2.3 Spindle

Spindle taper 2 MT 3 MT

2.4 Drilling machine table

B 24 H B 28 HB, B 28 H

1HP, 115V, 60HZ, 1Ph 1HP, 115V, 60HZ, 1Ph

B 28 H Vario

2HP, 23 0V, 60HZ, 1Ph

B 24 H

B 28 HB, B 28 H

(Vario)

B 28 HB, B 28 H

(Vario)

B 28 HB, B 28 H

(Vario)

Dimension of the table

length x width of the working surface

T-slot dimension 14mm (0.551")

Maximum distance

spindle - table

Maximum distance

spindle - base

Working surface base

length x width of the working surface

280mm (1 1.02") x

300mm (11.81")

515mm (20.28") 858mm (33.78")

681mm (26.81")

280mm (1 1.02") x

260mm (10.24")

340mm (13.39") x

360mm (14.17")

B 28 H (Vario)

1274mm (50.16")

B 28 HB

699.5mm (27.5“)

B 28 HB, B 28 H

360mm (12.60") x

360mm (12.60")

B 28 H Vario

370mm (14.57") x

360mm (12.60")

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Technical Data

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2.5 Required space

Height

Depth 1700mm (66.93") 1800mm (70.87") Width 1500mm (59.06") 1600mm (62.99")

2.6 Speeds

Spindle speeds [rpm] 420 - 4000 262 - 4075

Number of stages 7 16

Spindle speeds [rpm] 35 - 4000

Number of stages 12

2.7 Environmental conditions

B 24 H

1850mm (72.84")

B 24 H B 28 HB, B 28 H

B 28 H Vario

B 24 H

B 28 HB, B 28 H

2000 (78.74")

B 28 HB

1850mm (72.84")

B 28 HB, B 28 H

(Vario)

2.8 Operating material

2.9 Emissions

The noise level emission of the bench drill and upright drill is below 76 dB(A). If the bench drill and upright drill is installed in an area where various machines are in operation, the acoustic influence (immission) on the operator of the bench drill and upright drill may exceed 85 dB(A).

INFORMATION

This numeric value had been measured on a new machine under conventional operating conditions. Depending on the age or wear of the machine, the noise behavior of the machine might change.

Furthermore, the extent of the noise emission is also depending on manufacturing influence factors, such as speed, material and clamping conditions.

Temperature 41 - 95 °F Rel. humidity 25 - 80 %

B 24 H

Toothed rack commercial lubricating grease

Column acid-free lubricating oil, e.g. machine oil, motor

B 28 HB, B 28 H

(Vario)

oil

INFORMATION

The mentioned numerical value is an emission level and not necessarily a safe working level.

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Page 18

OPTIMUM

MASCHINEN - GERMANY

Unless the degree of noise emission and the degree of noise disturbance are depending on one another it is not possible to use it in order to reliably determine if it is necessary to take further preventive measures or not.

The following factors influence the actual degree of the noise disturbance of the operator:

• Characteristics of the working chamber, e.g. size or damping behavior,

• Other noise sources, e.g. the number of machines,

• Other processes proceeding nearby and the period during which the operator is exposed to the noise.

Furthermore, the admissible pollution level may be different from one country to another due to the national regulations. This information regarding the noise emission should allow the operator of the machine to perform a better evaluation of the endangerments and risks.

CAUTION! The machine operator has to wear an appropriate ear protection depe nding on the overall

stress caused by noise and on the basic limit values. We generally recommend using a sound and ear protectio n.

Technical Data

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Page 19

Technical Data

2.10 Dimensions B24H

OPTIMUM

MASCHINEN - GERMANY

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Img.2-1: Dimensions B24H

Page 20

OPTIMUM

MASCHINEN - GERMANY

2.11 Dimensions B28HB

Technical Data

Img.2-2: Dimensions B24HB

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Page 21

Technical Data

2.12 Dimensions B28H

OPTIMUM

MASCHINEN - GERMANY

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Img.2-3: Dimensions B28H

Page 22

OPTIMUM

MASCHINEN - GERMANY

2.13 Dimensions B28H Vario

Technical Data

Img.2-4: Dimensions B28H Vario

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Page 23

Assembly

3 Assembly

3.1 Scope of delivery

Please check immediately that nothing had been damaged during transportation and that all components are complete. Compare the delivery volume to the attached packing list.

3.2 Transport

 Center of gravity

 Attachment positions (marking the positions for the

attachment position gear)

OPTIMUM

MASCHINEN - GERMANY

 Prescribed transport position (marking the top

side)

 Means of transportation to be used  Weights

WARNING! Machine parts which fall off forklift trucks or other t r ansport vehicles could cause very

serious or even fatal injuries. Follow the instructions and information on the box.

WARNING! Use of unstable lifting and load suspension gear that breaks under load can cause very

serious injuries or even death. Check that the lifting and load suspension gear has sufficient load capacity and is in per-

fect condition. Observe the rules for preventing accidents issued by your association for the prevention of occupational accidents and safety in the workplac e or other inspection authorities.

Hold the loads properly. Never walk under suspended loads!

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Page 24

OPTIMUM

MASCHINEN - GERMANY

3.3 Storage

ATTENTION! Improper storage may cause important parts to be damaged or destroyed.

Store packed or unpacked parts only under the following ambient conditions. Please follow the instructions and indications on the transportation box:

 Fragile goods (goods require careful handling)

 Protect against humidity and humid environment s

 „Environmental conditions“ on page 17.

Assembly

 Prescribed position of the packaging box (marking the

top side – arrows pointing upward)

 Maximum stacking height

Example: non-stackable – do not pile any further packaging boxes on top of the first packaging box

Consult LDS Industries if the bench drill and upright drill and accessories have to be stored for a period of over three months or under different external conditions than those given here „Information“ on page 5.



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Page 25

Assembly

3.4 Installation and assembly

3.4.1 Site requirements

Organize the working space around the bench drill and upright drill according to the local safety regulations.

INFORMATION

In order to provide for good functionality and high machining accuracy as well as long durability of the machine the site should fulfill certain criteria.

Observe the following items:

 The device must only be installed and operated in dry ventilated places.  Avoid places nearby machines generating chips or dust.  The site has to be vibration-free, i.e. at a distance from presses, planing machines, etc.  The substructure has to be appropriate for bench drill and upright drill. Also make sure that

the load bearing capacity and the evenness of the floor are appropriate.

 The substructure has to be prepared in a way that possibly used coolant cannot penetrate

into the ground.

 Protruding parts such as stops, handles, etc. need to be secured by measures provided by

the customer if necessary in order to avoid dangers for persons.

 Provide sufficient space for assembly and operating staff as well as for material transport.  Also allow for accessibility for setting and maintenance works.  Make sure that the main power for the drilling machine is freely accessible.  Provide for sufficient illumination (minimum value: 47 Lumens/ft², measured at the tool tip). In

case of little intensity of illumination provide for additional illumination i.e. by a separate workplace illuminator.

OPTIMUM

MASCHINEN - GERMANY

INFORMATION

The main power of the bench drill and upright drill has to be freely accessible.

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OPTIMUM

column

B24H

base

B24H

hexagon screws

B24H

column B28H (B)

base B28H (B)

hexagon screws

B28H (B)

column B28H Vario

hexagon screws

B28H Vario

base B28H Vario

MASCHINEN - GERMANY

3.4.2 Assembly

WARNING! Danger of crushing when grouping, assembling and mounting the machine components.

Assembly of base and column

INFORMATION

For the mounting of bench drill and upright drill you need a wrench and the hexagon screws which are included in the delivery volume.

Put the base on the floor

and fix the column to the stand. Use the hexagon screws to fix it.

Assembly

Img.3-1: Assembly column

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Assembly

drilling table

toothed rack

column

drilling table

toothed rack

column

3.4.3 Assembly of the drilling machine table B24H (B28H B)

Insert the toothed rack in the drilling table. Adjust the toothed rack within the drilling

machine table in a way that the teeth of the toothed rack cam into the spiral wheel of the support for the drilling machine table.

Insert the drilling table with the toothed rack on

the column.

OPTIMUM

MASCHINEN - GERMANY

Img.3-2: Assembly drilling table B24H (Vario)

3.4.4 Assembly of the drilling machine table B28H (Vario)

Insert the toothed rack in

the drilling table.

Adjust the toothed rack

within the drilling machine table in a way that the teeth of the toothed rack cam into the spiral wheel of the support for the drilling machine table.

Insert the drilling with the

toothed rack on the column.

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Img.3-3: Assembly drilling table B28H (Vario)

Page 28

OPTIMUM

drilling table

cooling equipment

column

cooling agent hoses

guide ring

locking screw

guide ring

MASCHINEN - GERMANY

Mount cooling equip-

ment.

Mount all cooling agent

hoses and fasten you these with the hose clamps.

Assembly

Img.3-4: Assembly drilling table B28H (Vario)

INFORMATION

The longer side of the toothed rack without toothing must be upside.

Insert the guide ring on to

the column and the toothed rack.

Fix the guide ring and the

locking screw.

Make sure that you can still easily turn the drilling table round the column.

Img.3-5: Assembly guide ring B28H (Vario)

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Page 29

Assembly

hexagon screw

crank handle

cap screws

distance plate

cap screws

OPTIMUM

MASCHINEN - GERMANY

Mount the crank handle to

the height adjustment arm of the drilling table.

Tighten the crank handle

securly.

Img.3-6: Mounting of crank handle

Mounting the boring head

Put the distance plate on

the column.

Fix the distance plate

with the cap screws on the column.

3.5 Installation

Put the boring head on

the distance plate and turn it until it aligns with the base.

Fix the boring head with

the cap screws on the distance plate.

Img.3-7: Assembly boring head

Check the horizontal orientation of the base of the bench drill and upright drill with a spirit

level.

Check that the foundation has sufficient floor-load capacity and rigidityt. Position the bench drill and upright drill on the intended foundation. Attach the bench drill and upright drill using the provided recesses in the machine base.

WARNING! The quality of the foundation and the mounting method of the machine base to the foun-

dation has to assimilate the loads of the machine. The foundation needs to be even. Please check the horizontal alig nment of th e f oundation of the machine wit h a spirit level.

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OPTIMUM

Through-hole

Arrow sign

Through-hole

MASCHINEN - GERMANY

3.5.1 Mounting

In order to provide for the necessary stability of the drilling machine it is necessary to firmly bolt the base of the machine to the foundation. We recommend you to use compound anchor cartridges or heavy duty anchors.

Mount the drilling machine to the

foundation using the provided through-holes on the base.

The through-holes are marked with arrows on the machine base.

Assembly

Abb.3-8: Labeling of the anchorage

point on drilling machine B24H, B28H (B)

Img.3-9: Labeling of the anchorage point on

drilling machine B28H (Vario)

Img.3-10: Bottom attachment

ATTENTION! Tighten the anchor bolt nuts on the bench drill and upright drill only until it is firmly

secured and can neither move during operation no r be turned over.

If the anchor bolt nuts are too tight and the foundation is uneven, the base of the bench drill and upright drill may break.

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Assembly

Fixing (2)

3.5.2 Installation drawings B24H

OPTIMUM

MASCHINEN - GERMANY

Img.3-11: B24H

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Page 32

OPTIMUM

Fixing (2)

Fixing (3)

MASCHINEN - GERMANY

B28H (B)

Assembly

Img.3-12: B28H

B28H (Vario)

Img.3-13: B28H (Vario)

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Page 33

Assembly

3.6 First use

WARNING! Risk by using improper workpiece clamping materials or by operating the machine with

inadmissible speed. Only use the clamping materials (e.g. drill chuck) which had been delivered together with

the machine or as optional equipment offered by OPTIMUM. Use the working clamping materials only in the provided admissible speed range. Workpiece clamping materials must only be modified according to the recommendations

of OPTIMUM or of the clamping material manufacturer.

WARNING! Staff and equipment may be endanged if the bench drill and upright drill is first used by

unexpert staff. We do not take responsibility for damage caused by incorrect commissioning.

 „Qualification of employees“ on page 9

Power supply

OPTIMUM

MASCHINEN - GERMANY

Connect the electrical feeds. Check the fuse protection (fuse) of your electrical supply according to the technical specifica-

tions for the total connected load of the bench drill and upright drill.

ATTENTION! For 230V machines

correctly. Most of the defects on motors are resulting from wrong connections. For instance, if a

motor phase is not correctly clamped or connected to the neutral conductor (N) This may cause:

• That the motor is becoming hot very rapidly

• Increased motor noises.

• The motor has no power.

ATTENTION! Make sure that the direction of rotation of the drive motor is correct. If the rotational

direction switch is switched to the position to perform clockwise rotations (R) the drill spindle needs to rotate clockwise. If necessary, exchange two phase connections. If your connector plug is equipped with a phase inverter, this is done by turning it by 180°.

If the machine is wrongly connected the warrantee will become null and void.

: Imperatively make sure that all 3 phases (L1, L2, L3) are connected

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Page 34

OPTIMUM

lever for belt tension

belt drive with housing

lever for spindle feed

EMERGENCY-STOP

button

OFF

drill chuck guard

drill chuck

drilling table

height adjustment of

the table

MASCHINEN - GERMANY

4 Operation

4.1 Safety

Use the machine only under the following conditions:

 The machine is in proper working order.  The machine is used as prescribed.  The instruction manual has been followed.  All safety devices are installed and activated.

All malfunctions should be eliminated immediately. Stop the machine immediately at an event of any malfunction in operation and make sure it cannot be started up accidentally or without authorization.

Notify the person responsible immediately of any modification.

 „Safety during operation“ on page 14

4.2 Control and indicating elements

4.2.1 Bench drill and upright drill B24H

Operation

Img.4-1: B24H

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Operation

lever for belt tension

belt drive with housing

lever for spindle feed

EMERGENCY-STOP

OFF

drill chuck guard

drill chuck

drilling table

height adjustment of

the table

belt drive with housing

handle for belt tension

handle for sleeve feed

ON/OFF

EMERGENCY-STOP drill chuck guard cooling equipment (B28H Vario)

height adjustment for the

drilling table

cooling pump

belt drive with housing

handle for sleeve feed

EMERGENCY-STOP

OFF

drill chuck guard

drill chuck

drilling table

height adjustment for the

drilling table

4.2.2 Bench drill and upright drill B28HB

OPTIMUM

MASCHINEN - GERMANY

4.2.3 Bench drill and upright drill B28H (Vario)

Img.4-2: B28HB

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Img.4-3: B28H (Vario)

Page 36

OPTIMUM

Machine lamp ON/OFF

Selector switch operating mode

left-hand / right-hand rotation

Push button „ON“

EMERGENCY-STOP button

Push button „OFF“

Machine lamp ON/OFF

Selector switch operating mode

left-hand / right-hand rotation

Push button „ON“

EMERGENCY-STOP button

Push button „OFF“

Speed display

Selector switch operating mode

left-hand / right-hand rotation

EMERGENCY-STOP button

Machine lamp ON/OF

Coolant pump ON/OFF

Potentiometer

Push button „ON“

Push button „OFF“

MASCHINEN - GERMANY

4.2.4 Control panel B24H

Img.4-4: Operating element on the control panel B24H

4.2.5 Control panel B28H (Vario), B28HB

Operation

Img.4-5: Operating element on the control panel B28H, B28HB

Img.4-6: Operating element on the control panel B28H Vario

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Page 37

Operation

Machine lamp B24H/ B28H (B) (Vario)

OPTIMUM

MASCHINEN - GERMANY

Switch for the turning direction

Standard operation, selection right-handed or left-handed rotation.

Potentiometer

Speed setting "VARIO"

Push button ON

The push button „ON“ will start up the rotation of the drill spindle.

Push button OFF

The push button „OFF“ switches off the rotation of the drill spindle.

Coolant pump ON / OFF

Switches the coolant pump ON or OFF.

Machine lamp ON / OFF

Switches the coolant pump ON or OFF.

Img.4-7: Machine lamp B24H, B28H (B)

Operating control lamp

The operating control lamp on the operating panel has to flash.

Main switch

Interrupts or connects the power supply.

(Vario)

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Page 38

OPTIMUM

MASCHINEN - GERMANY

4.3 Turn the machine on B24H / B28H / B28HB

Turn the main switch on.

Select the turning direction.

Actuate the push button „ON“.

4.4 Turn the machine on B28H Vario

Operation

Turn the main switch on.

Select the turning direction.

Actuate the push button „ON“.

4.5 Turn the machine off B24H / B28H / B28HB

Actuate the push button „OFF“.

If the machine stands still for a longer period of time, switch off the main switch.

4.6 Turn the machine off´B28H Vario

Actuate the push button „OFF“.

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Page 39

Operation

V-belt

lever

V-belt tension

V-belt

lever

V-belt tension

If the machine stands still for a longer period of time, switch off the main switch.

4.7 Speed variation

WARNING! Danger due to drill chuck or tools flying off at high speed. Make sure not to exceed the

maximum speed of the drill chuck when setting the spindle speed.



Switch off the main switch of the

machine.

Open the protective cover. Loosen the clamping lever of the

V-belt tension .

Put the V-belt to the required

position.

OPTIMUM

MASCHINEN - GERMANY

Img.4-8: Lever for the V-belt tension B24H

Tension the clamping lever. Close the protective cover.

Img.4-9: Lever for the V-belt tension B28H/

B28HB / B28H Vario

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Page 40

OPTIMUM

MASCHINEN - GERMANY

4.7.1 Speed table B24H

Img.4-10: Speed table B24H

4.7.2 Speed table B28H - B28HB

Operation

Img.4-11: Speed table B28H - B28HB

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Page 41

Operation

Scale

Locking screw

drill depth stop

4.7.3 Speed table B28H Vario

OPTIMUM

MASCHINEN - GERMANY

Img.4-12: Speed table B28H Vario

4.8 Drill depth stop

When drilling several holes of the same depth, you can use the drill depth stop.

Loosen the locking

screw and turn the graduated collar until the required drilling depth matches with the indicator.

Re-tighten the locking

screw.

Img.4-13: drill depth stop

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Page 42

OPTIMUM

upper part (No.1)

Keyless drill chuck

lower part (No. 2)

Keyless drill chuck

tool (drill)

drill drift

drill quill

upper part quick

action drill chuck

lower part quick

action drill chuck

MASCHINEN - GERMANY

4.9 Removing, mounting of drill chucks and drills

4.9.1 Keyless drill chuck

The drill chuck consists of two parts (No. 1 and No. 2)

Hold the upper part (No. 1) of

the drill chuck. With the lower part (No. 2) of the drill chuck one can firm and/or looseturn the cheeks of the drill chuck.

Turn the tool (drill) firmly.

Operation

ATTENTION! Make sure that the chucked tool is positioned firmly and correctly.

4.9.2 Removing the drill chuck

The drill chuck and the morse taper are released from the drill spindle by a drill drift.

WARNING! Remove the drill chuck only when the bench drill and upright drill is disconnected from

the electrical power supply.

Switch off the bench drill

and upright drill with the main switch or disconnect the power plug.

Turn the drill spindle

downwards.

Turn the drill spindle in a

way that the openings on the drill quill and on the drill spindle are superimposed.

Loosen the morse taper of

the drill chuck by means of a drill drift.

Img.4-14: drill chuck

Img.4-15: Disassembly B24H

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Page 43

Operation

drill spindle

driver

taper mandrel

OPTIMUM

MASCHINEN - GERMANY

4.9.3 Removing the tool or drill chuck with the integrated drill drift on the B28H (B, Vario)

CAUTION! Hold the tool or the drill chuck.

With the below described procedure the taper mandrel is being loosened from the drill spindle. The tool and/or the drill chuck will fall down.

CAUTION! Do not try to expel the tool when it is in the

intermediate position. This might cause damages of the integrated drill drift or of the feed handle.

Lower the spindle until the two circum-

scribed lines on the quill are visible.

Push the locking pin inside the quill fully

inside. Be sure that the pin is fully engaged . inside the quill.

Raise the spindle upward while holding the

chuck.

The chuck arbor will be pushed out of the

spindle.

Pull out the locking pin fully out of the

quill.

4.9.4 Mounting the drill chuck B24H and B28H (B, Vario)

The keyless drill chuck is secured through a form-fit union (driver) against twisting in the drill spindle.

A friction-locking union holds and centers the keyless drill chuck with the taper mandrel in the drill spindle.

Img.4-16: Disassembly B28HB, B28H (Vario)

Check and if necessary, clean the conical seat in the drill spindle and at the taper mandrel of

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the tool or the keyless drill chuck.

Img.4-17: taper mandrel

Page 44

OPTIMUM

Coolant charging hole

Coolant shut-off valve

MASCHINEN - GERMANY

Press the taper mandrel into the drill spindle.

4.10 Cooling

The friction generated during rotation ca n cause the edge of the tool to become very hot. The tool should be cooled during the drilling process. Cooling the tool with a suitable cooling

lubricant ensures better working results and a longer edge life of the tools. This is best realised by a separate cooling equipment. If there is no cooling equipment included

in the delivery volume, you can cool by means of a spray gun or a washing bottle.

Operation

Img.4-18: Charging hole B28H Vario

Img.4-19: Coolant shut-off valve B28H Vario

Adjust the flow using the shut-off valve.

ATTENTION! Failure of the pump in the event of a dry run. The pump is lubricated by the cooling agent. Do not start up the pump without cooling

agent.

CAUTION! Danger of injury due to brushes getting caught or pulled in.

Use a spray gun or a washing bottle for cooling.

INFORMATION

Use a water-soluble and non-polluant drilling emulsion which can be obtained from authorized distributors.

Make sure that the cooling agent is being collected. Respect the environment when disposing any lubricants and cooling agents. Follow the manufacturer’s disposal instructions.

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 2014

Page 45

Operation

4.11 Before starting the working process

Before you start working, select the required speed. It is depending on the drilling diameter and on the material used.

 „Speed tab le B24H“ on page 40,  „Speed table B28H - B28HB“ on page 40

WARNING! For drilling jobs, it is necessary to clamp the workpiece firmly to prevent the bit catching

on the pieces. Example of suitable clamping devices include a machine vice or clamping jaws.

Put a wooden or plastic board beneath the workpiece to avoid drilling through to the work table, vice, etc.

Use the drill depth stop when you want to have several bore holes with the same depth. When working with wood, make sure to use an adequate dust extraction unit, as sawdust can

constitute a health hazard. Also use a suitable protective mask for any work that generates dust.

4.12 During the working process

OPTIMUM

MASCHINEN - GERMANY

The spindle feed is being performed by the star grip. Make sure that the feed is being at a regular pace and not to fast.

The reset of the spindle is being performed by a track recoil spring.

WARNING! Danger of clothing / or long hair getting caught.

• Make sure to wear a well-fitting work suit during drilling work.

• Do not use gloves.

• If necessary, wear a hairnet.

CAUTION! Danger of bumps by the levers on the star grip.

Do not release the star grip when repositioning the drill spindle sleeve.

CAUTION! Danger of crushing! Do not place your hand between the drill head and the spindle

sleeve.

The smaller the bit, the more likely it is to break. In the case of deep drilling, remove the bit from time to time to remove drilling chips from the

bore hole. A few drops of oil will reduce friction and prolong the service life of the bit.

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Page 46

OPTIMUM

Determining the cutting speed and the speed

MASCHINEN - GERMANY

5 Determining the cutting speed and the speed

5.1 Table cutting speeds / infeed

Material table

Recommended infeed f

Recommended

Material to be processed

Unalloyed construction steels

< 700 N/mm²

Alloyed construction steels

> 700 N/mm² Alloyed steels

< 1000 N/mm²

Steels, low stability

< 800 N/mm²

Steel, high stability

> 800 N/mm²

non-rust steels

> 800 N/mm²

Cast iron

< 250 N/mm²

Cast iron

> 250 N/mm²

CuZn alloy

brittle

CuZn alloy

ductile

Aluminum alloy

up to 11% Si

Thermoplastics 20 - 40 0.05 0.10 0.20 0.30 0.40

Thermosetting materials with

organic filling

Thermosetting materials with

anorganic filling

cutting speed

Vc in m/min

2...3 >3...6 >6...12 >12...25 >25...50

30 - 35 0.05 0.10 0.15 0.25 0.35

20 - 25 0.04 0.08 0.10 0.15 0.20

40 0.05 0.10 0.15 0.25 0.35

20 0.04 0.08 0.10 0.15 0.20

12 0.03 0.06 0.08 0.12 0.18

15 - 25 0.10 0.20 0.30 0.40 0.60

10 - 20 0.05 0.15 0.25 0.35 0.55

60 - 100 0.10 0.15 0.30 0.40 0.60

35 - 60 0.05 0.10 0.25 0.35 0.55

30 - 50 0.10 0.20 0.30 0.40 0.60

15 - 35 0.05 0.10 0.20 0.30 0.40

15 - 25 0.05 0.10 0.20 0.30 0.40

in mm/revolution

Drill bit diameter d in mm

5.2 Speed table

in m/min

Drill bit Ø

in mm

1.0 1274 1911 2548 3185 3822 4777 5732 6369 7962 9554 11146 12739 15924 19108 25478 31847

1.5 849 1274 1699 2123 2548 3185 3822 4246 5308 6369 7431 8493 10616 12739 16985 21231

2.0 637 955 1274 1592 1911 2389 2866 3185 3981 4777 5573 6369 7962 9554 12739 15924

2.5 510 764 1019 1274 1529 1911 2293 2548 3185 3822 4459 5096 6369 7643 10191 12739

3.0 425 637 849 1062 1274 1592 1911 2123 2654 3185 3715 4246 5308 6369 8493 10616

3.5 364 546 728 910 1092 1365 1638 1820 2275 2730 3185 3640 4550 5460 7279 9099

4.0 318 478 637 796 955 1194 1433 1592 1990 2389 2787 3185 3981 4777 6369 7962

4 6 8 10 12 15 18 20 25 30 35 40 50 60 80 100

Speed n in rpm

21 / 07 / 2014Page 46 Determining the cutting speed and the speed Bench drill and upright drill B24H ; B28H

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 2014

Page 47

Determining the cutting speed and the speed

OPTIMUM

MASCHINEN - GERMANY

in m/min

Drill bit Ø

in mm

4.5 283 425 566 708 849 1062 1274 1415 1769 2123 2477 2831 3539 4246 5662 7077

5.0 255 382 510 637 764 955 1146 1274 1592 1911 2229 2548 3185 3822 5096 6369

5.5 232 347 463 579 695 869 1042 1158 1448 1737 2027 2316 2895 3474 4632 5790

6.0 212 318 425 531 637 796 955 1062 1327 1592 1858 2123 2654 3185 4246 5308

6.5 196 294 392 490 588 735 882 980 1225 1470 1715 1960 2450 2940 3920 4900

7.0 182 273 364 455 546 682 819 910 1137 1365 1592 1820 2275 2730 3640 4550

7.5 170 255 340 425 510 637 764 849 1062 1274 1486 1699 2123 2548 3397 4246

8.0 159 239 318 398 478 597 717 796 995 1194 1393 1592 1990 2389 3185 3981

8.5 150 225 300 375 450 562 674 749 937 1124 1311 1499 1873 2248 2997 3747

9.0 142 212 283 354 425 531 637 708 885 1062 1238 1415 1769 2123 2831 3539

9.5 134 201 268 335 402 503 603 670 838 1006 1173 1341 1676 2011 2682 3352

10.0 127 191 255 318 382 478 573 637 796 955 1115 1274 1592 1911 2548 3185

11.0 116 174 232 290 347 434 521 579 724 869 1013 1158 1448 1737 2316 2895

12.0 106 159 212 265 318 398 478 531 663 796 929 1062 1327 1592 2123 2654

13.0 98 147 196 245 294 367 441 490 612 735 857 980 1225 1470 1960 2450

14.0 91 136 182 227 273 341 409 455 569 682 796 910 1137 1365 1820 2275

15.0 85 127 170 212 255 318 382 425 531 637 743 849 1062 1274 1699 2123

16.0 80 119 159 199 239 299 358 398 498 597 697 796 995 1194 1592 1990

17.0 75 112 150 187 225 281 337 375 468 562 656 749 937 1124 1499 1873

18.0 71 106 142 177 212 265 318 354 442 531 619 708 885 1062 1415 1769

19.0 67 101 134 168 201 251 302 335 419 503 587 670 838 1006 1341 1676

20.0 64 96 127 159 191 239 287 318 398 478 557 637 796 955 1274 1592

21.0 61 91 121 152 182 227 273 303 379 455 531 607 758 910 1213 1517

22.0 58 87 116 145 174 217 261 290 362 434 507 579 724 869 1158 1448

23.0 55 83 111 138 166 208 249 277 346 415 485 554 692 831 1108 1385

24.0 53 80 106 133 159 199 239 265 332 398 464 531 663 796 1062 1327

25.0 51 76 102 127 153 191 229 255 318 382 446 510 637 764 1019 1274

26.0 49 73 98 122 147 184 220 245 306 367 429 490 612 735 980 1225

27.0 47 71 94 118 142 177 212 236 295 354 413 472 590 708 944 1180

28.0 45 68 91 114 136 171 205 227 284 341 398 455 569 682 910 1137

29.0 44 66 88 110 132 165 198 220 275 329 384 439 549 659 879 1098

30.0 42 64 85 106 127 159 191 212 265 318 372 425 531 637 849 1062

31.0 41 62 82 103 123 154 185 205 257 308 360 411 514 616 822 1027

32.0 40 60 80 100 119 149 179 199 249 299 348 398 498 597 796 995

33.0 39 58 77 97 116 145 174 193 241 290 338 386 483 579 772 965

34.0 37 56 75 94 112 141 169 187 234 281 328 375 468 562 749 937

35.0 36 55 73 91 109 136 164 182 227 273 318 364 455 546 728 910

36.0 35 53 71 88 106 133 159 177 221 265 310 354 442 531 708 885

37.0 34 52 69 86 103 129 155 172 215 258 301 344 430 516 689 861

38.0 34 50 67 84 101 126 151 168 210 251 293 335 419 503 670 838

 2014

4 6 8 10 12 15 18 20 25 30 35 40 50 60 80 100

Speed n in rpm

21 / 07 / 2014 Page 47Determining the cutting speed and the speed Bench drill and upright drill B24H ; B28H

(B) (Vario) ; Version 2.1.7

Page 48

OPTIMUM

c

 d

------------

40m

min 3 14 0 03m

---------------------------------------------------

425 rpm===

Chisel edge length 10% of the drill bit - Ø

MASCHINEN - GERMANY

Determining the cutting speed and the speed

in m/min

Drill bit Ø

in mm

39.0 33 49 65 82 98 122 147 163 204 245 286 327 408 490 653 817

40.0 32 48 64 80 96 119 143 159 199 239 279 318 398 478 637 796

41.0 31 47 62 78 93 117 140 155 194 233 272 311 388 466 621 777

42.0 30 45 61 76 91 114 136 152 190 227 265 303 379 455 607 758

43.0 30 44 59 74 89 111 133 148 185 222 259 296 370 444 593 741

44.0 29 43 58 72 87 109 130 145 181 217 253 290 362 434 579 724

45.0 28 42 57 71 85 106 127 142 177 212 248 283 354 425 566 708

46.0 28 42 55 69 83 104 125 138 173 208 242 277 346 415 554 692

47.0 27 41 54 68 81 102 122 136 169 203 237 271 339 407 542 678

48.0 27 40 53 66 80 100 119 133 166 199 232 265 332 398 531 663

49.0 26 39 52 65 78 97 117 130 162 195 227 260 325 390 520 650

50.0 25 38 51 64 76 96 115 127 159 191 223 255 318 382 510 637

4 6 8 10 12 15 18 20 25 30 35 40 50 60 80 100

Speed n in rpm

5.3 Examples to calculatory determine the required speed for your drilling machine

The necessary speed is depending on the diameter of the drill bit, on the material which is being machined as well as on the cutting material of the drill bit.

Material which needs to be drilled: St37 Cutting material (drill bit): HSS spiral bit Set point of the cutting speed [

] according to the table: 40 meters per minute

Diameter [d] of your drill bit: 30 mm = 0.03 m [meters] Selected infeed [f] according to the table: about 0.35 mm/rev

Speed

Set a speed on your drilling machine which is less than the determined speed.

INFORMATION

In order to facilitate the production of larger drill holes they need to be pre-drilled. This way, you reduce the cutting forces and improve the guiding of the drill bit.

The pre-drilling diameter is depending on the length of the chisel edge. The chisel edge does not cut, but it squeezes the material. The chisel edge is positioned at an angle of 55° to the major cutting edge.

As a general rule of thumb it applies: The pre-drilling diameter is depending on the length of the chisel edge.

Recommended working steps for a drilling diameter of 30 mm

Example: 1st working step: Pre-drilling with Ø 5 mm (0.2"). 2nd working step: Pre-drilling with Ø 15 mm (0.6"). 3rd working step: Drilling with Ø 30 mm (1.2").

(B) (Vario) ; Version 2.1.7

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21 / 07 / 2014Page 48 Determining the cutting speed and the speed Bench drill and upright drill B24H ; B28H

Page 49

Maintenance

Inspection Maintenance

Repair

Measuring Rough cleaning Mending

Testing Fine cleaning Replacing

Conserving

Lubricating

Completing

Replacing

Readjusting

Adjusting

6 Maintenance

In this chapter you will find important information about

 inspection,  maintenance,  repair.

The diagram below shows which of these headings each task falls under.

OPTIMUM

MASCHINEN - GERMANY

Img.6-1: Maintenance – Definition according to DIN 31051

ATTENTION! Properly performed regular maintenance is an essential prerequisite for

• safe operation,

• faulty-free operation,

• long service life of the machine and

• the quality of the products you manufacture.

Installation and equipment from other manufacturers must be in optimum cond ition.

ENVIRONMENTAL PROTECTION During work on the drilling head, make sure that

• collector vessels are used, with sufficient capacity for the amount of liquid to be collected.

• liquid and oils are not split on the ground.

Clean up any split liquids or oils immediately using proper oil-absorption methods and dispose of them in accordance with current legal requirements on the environment.

Cleaning up spills

Do not re-introduce liquids spilt outside the system during repair or as result of leakage from the reserve tank: collect them in a collecting vessel to be disposed of.

Disposal

 2014

21 / 07 / 2014 Page 49Maintenance Bench drill and upright drill B24H ; B28H (B) (Vario) ; Version 2.1.7

Never dump oil or other pollutant substances in water inlets, rivers or channels.

Page 50

OPTIMUM

MASCHINEN - GERMANY

Used oils must be delivered to a collection centre. Consult your superior if you do not know where the collection centre is.

6.1 Safety

WARNING! The consequences of incorrect maintenance and repair work may include:

• very serious injury to employees working on the machine,

• damage to the machine. Only qualified staff should carry out maintenance and repair work on the machine.

6.1.1 Preparation

WARNING! Only carry out work on the machine if it has been disconnected from the main power sup-

ply.

Position a warning sign.

Maintenance

6.1.2 Restarting

Before restarting run a safety check.

 „Safety check“ on page 11

WARNING! Before activating the machine, double check that this will not

• endanger other people,

• damage the machine.

6.2 Inspection and maintenance

This type and extent of wear depends to a large extent on individual usage and service conditions.

For this reason, all the intervals are only valid for the authorized conditions.

Interval Where? What? How?

Examination for outside damages.

 „Safety check“ on page 11

start of shift

after each

maintenance or

repair operation

Bench drill and upright drill

 2014

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Page 51

Maintenance

column

toothed rack

V-belt B24H (Vario)

V-belt B28H (Vario)

Interval Where? What? How?

OPTIMUM

MASCHINEN - GERMANY

• Lubricate the column with commercial oil, machine oil, motor oil.

• Lubricate the rack regularly with commercial grease (e.g. friction bearing grease).

every month

lubricate

column and rack

every six mon-

ths

V-belts on the drilling head

Img.6-2: B24H ; B28H (B) (Vario)

• Check whether the V-belts have become porous and worn.

visual inspection

Img.6-3: V-belt housing

 2014

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Page 52

OPTIMUM

Oiler

Coolant charging hole

MASCHINEN - GERMANY

Interval Where? What? How?

Maintenance

 Lubricate all oilers with machine oil, do not use a gr ease

gun or similar greasing equipment. Use the oil bottle in included with the machine.

 „Operating material“ on page 17

every month

every six mon-

ths

Oiler

electric

Lubricat

check

Img.6-4: Oiler B24H ; B28H (B) (Vario)

Check the electrical equipment / parts of the drilling machine.

 „Qualification of employees“ on page 9

 The cooling pump is almost entirely maintenance-fr ee.

Replace the cooling agent regularly, depending on usage.

 When using coolants which leave residues, the coolant

pump must be removed and rinsed possibly.

 Suck the old cooling agent off with a suitable industrial

suction cup over the charging hole.

 Fill in new coolant over the chip tray. The maximum

capacity of the coolant is about 3.7 quarts.

Img.6-5: Coolant tank B28H Vario

 2014

21 / 07 / 2014Page 52 Maintenance Bench drill and upright drill B24H ; B28H (B) (Vario) ; Version 2.1.7

Page 53

Maintenance

spring barrel

circlip

flat spiral spring

spring barrel

circlip

Interval Where? What? How?

OPTIMUM

MASCHINEN - GERMANY

CAUTION! Parts will throw out at high pressure. When

disassembling, make sure that only skilled staff will maintain and repair the machine.

as required

INFORMATION!

The spindle bearing arrangement is prelubricated. It is not required to relubricate it.

6.3 Repair

Repairs must be carried out only by qualified technical staff; and must foll ow the instructions an d guidelines given in this manual. Should technical assistance be required, contact LDS Industries at 1-630-785-6437.

Optimum Maschinen - Germany and LDS Industries are not liable for, nor do they guarantee against, damage or operating malfunctions resulting from alteration, abuse, lack of maintenance or this product’s use for other than its intended purpose. Failure to read and follow this operating manual is not covered.

For repairs only use

spindle return spring

Img.6-6: Spindle return spring

adjust stretch return spring

Img.6-7: Exploded view of the spring barrel

Proper and suitable tools,  Parts purchased from Optimum, or its authorized agent.

 2014

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Page 54

OPTIMUM

MASCHINEN - GERMANY

Spare parts - B24H, B28H, B28HB, B28H Vario

7 Spare parts - B24H, B28H, B28HB, B28H Vario

7.1 Exploded view B24H

7.1.1 Drilling head B24H

Img.7-1: Drilling head B24H

(B) (Vario) ; Version 2.1.7

 2014

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Page 55

Spare parts - B24H, B28H, B28HB, B28H Vario

7.1.2 Column and drilling table B24H

OPTIMUM

MASCHINEN - GERMANY

Img.7-2: Column and drilling table B24H

 2014

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(B) (Vario) ; Version 2.1.7

Page 56

OPTIMUM

MASCHINEN - GERMANY

7.1.3 Pulleys B24H

Spare parts - B24H, B28H, B28HB, B28H Vario

Img.7-3: Pulleys B24H

7.1.4 Parts list B24H

B24H

Description Qty. Size Item no.

Pos.

1 Base 1 030202411 2 Column 1 030202412 3 Toothed rack 1 030202413 4 Toothed wheel 1 030202414 5 Drive screw 1 030202415

5-1 Spacer 1 0302024151

6 Drill chuck 1 B16 030202416

Drill chuck (year on construction since

6-1

7 Spindle 1 030202417 8 V-belt 1 030202418 9 Spindle sleeve 1 030202419

10 Socket head screw 4 M10x60 0302024110

(B) (Vario) ; Version 2.1.7

12/2009)

1 3050626

 2014

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Page 57

Spare parts - B24H, B28H, B28HB, B28H Vario

B24H

OPTIMUM

MASCHINEN - GERMANY

 2014

Pos.

Description Qty. Size Item no.

10-1 Washer 4 GB/T93-1987-10 03020241101 10-2 Washer 4 GB/T97.1-1985-10 03020241102

11 Drilling machine table 1 0302024111

11-1 Threaded pin 1 M6x6 03020241111

12 Ball bearing 1 6205 0302024112 13 Spacer 2 0302024113 14 Screw 1 JB-T7270.4-1994-2 0302024114 15 Case 1 JB-T7270.4-1994-1 0302024115

15-1 Handle complete 1 JB-T7270.4-1994 03020241151

16 Crank 1 0302024116 17 Spindle feed grip 1 0302024117 18 Socket head screw 1 M5x25 0302024118 19 Plate 1 0302024119 20 Bushing scale 1 0302024120 21 Scale ring 1 0302024121y 22 Scale 1 0302024122

23 Clamping screw 1 0302024123 23-1 Label „spans“ „release“ 1 03020241231 23-2 Socket head screw 2 M3x10 03020241232

24 Bushing quick action grip 1 0302024124 24-1 Quick action grip 1 03020241241

25 Bolt span 1 0302024125 25-1 Hexagonal nut 1 M10 03020241251

26 Hexagon bolt 4 M8x25 0302024126 26-1 Washer 4 GB/T93-1987-8 03020241261 26-2 Washer 4 GB/T97.1-1985-8 03020241262

27 Motor 1 0302024127

28 Feather key 1 6x6x20 0302024128

29 Socket head screw 3 M5x10 0302024129 29-1 Washer 3 5 03020241291

30 Belt housing bottom part 1 0302024130 30-1 Articulation 2 03020241301 30-2 Washer 12 4 03020241302 30-3 Hexagonal nut 12 M4 03020241303

31 Pulley 1 M6x8 0302024131 31-1 Threaded pin 1 03020241311

32 Belt housing upper part 1 0302024132

34 Spindle 1 0302024134

35 Plate closer 1 0302024135

36 Socket head screw 4 M6x12 0302024136 36-1 Washer 4 03020241361

37 Spindle nut 1 0302024137 37-1 Ball bearing 1 6003-2Z 03020241371 37-2 Socket head screw 2 M4x8 03020241372

38 Pulley 1 0302024138

39 Socket head screw 7 M6x15 0302024139

40 Holder plate 1 0302024140

41 motor plate 1 0302024141

42 Drilling head 1 0302024142 42-1 Washer 4 03020241421 42-2 Plate 1 03020241422 42-3 Socket head screw 4 M6x12 03020241423 42-4 Bushing 1 030202414234

43 Spacer ring 1 0302024143

44 Ball bearing 2 6005 0302024144

45 Circlip 2 DIN472 47x1.6 0302024145

46 Socket head screw 3 M4x10 0302024146

47 Covering plate 1 0302024147

48 Socket head screw 2 M6x30 0302024148 48-1 Socket head screw 1 03020241481

49 Fixing drill chuck proetection 1 0302024149

50 Knurled screw 1 M6x30 0302024150

51 Arm drill chuck protection 1 20x20 0302024151

53 View sealing pane drill chuck protection 1 0302024153 53-1 Switch drill chuck 1 230V 0,5A 03020241531

55 circlip 1 DIN471-12x1 0302024155

56 Box spiral spring 1 0302024156

57 Spiral spring 1 0302024157

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(B) (Vario) ; Version 2.1.7

Page 58

OPTIMUM

MASCHINEN - GERMANY

B24H

Spare parts - B24H, B28H, B28HB, B28H Vario

Pos.

Description Qty. Size Item no.

58 Bushing toothed shaft 1 0302024158 58-1 Split pin 2 3x12 03020241581 58-2 Spanner spiral spring 1 03020241582

60 Switch plate 1 0302024160

61 Switch On / OFF (old version 1.0) 1 0302024161

62 Socket head screw 4 M4x8 0302024162

63 Machine lightning switch 1 250V 6A 0302024163

64 Socket head screw 12 M4x10 0302024164

65 Socket head screw 2 M6x20 0302024165

66 O-ring 1 0302024166

67 sliding block 1 0302024167

68 Setscrew 1 M8x15 0302024168

69 Cover illumination 1 0302024169 69-1 Lamp (diode) 1 12V 03020241691

70 Shank pinion 1 0302024170 70-2 Mechanicel indicator scale 1 03020241702 70-3 Ring 1 03020241703 70-4 Socket head screw 2 M6x16 03020241704 70-5 Spring pin 1 03020241705

71 Plate 1 M8x30 0302024171 71-1 Socket head screw 4 03020241711

72 Socket head screw 4 M10x25 0302024172

73 Shaft 1 0302024173

74 Oiler 1 0302024174

75 Clamping lever 1 0302024175

76 Socket head screw 1 M6x20 0302024176

77 Socket head screw 1 M12x60 0302024177

78 Clamping screw 1 M12x60 0302024178 78-1 Washer 1 12 03020241781

79 Knurled screw 1 M8x20 0302024179

80 Sliding block 1 0302024180

81 Straight pin 1 6x40 0302024181

82 Pressure Oil Cup 2 0302024182

83 Spacer 1 0302024183 83-1 Threaded pin 1 M6x6 03020241831

84 Key 1 8x8x18 0302024184

85 Bush button On 1 230V 5A 0302024185 85-1 Operating control light 1 24V 03020241851

86 Bush button Off 1 230V 5A 0302024186

87 Main switch 1 660V 20A 0302024187

88 Switch for direction of rotation 1 250V 24V/12A 50Hz 0302024 188

89 Light switch 1 250V 6A 0302024189

90 Emergency- stop switch 1 600V 10A 0302024190

91 Counterpart reed contact 1 0302024191

92 Reed contact 1 PS-3150 0302024192

93 Nut 4 M4 0302024193

94 Socket head screw 4 M3x10 0302024194

95 Groove nut 1 M22x1,5 0302024195 95-1 Washer 1 6 03020241951 95-2 Socket head screw 1 M6x12 03020241952 96-1 Circlip 1 03020241961

98 Cable discharge 1 0302024198

0 Transformer (without illustration) 1 0302024196 0 Contactor (without illustration) 1 230V 16A 0302024197

(B) (Vario) ; Version 2.1.7

 2014

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Page 59

Spare parts - B24H, B28H, B28HB, B28H Vario

7.2 Wiring diagram B24H - 115V, 60 Hz

OPTIMUM

MASCHINEN - GERMANY

 2014

21 / 07 / 2014 Page 59Spare parts - B24H, B28H, B28HB, B28H Vario Bench drill and upright drill B24H ; B28H

Img.7-4: Wiring diagram B24H - 115V

(B) (Vario) ; Version 2.1.7

Page 60

OPTIMUM

MASCHINEN - GERMANY

7.3 Exploded view B28H, B28H B

7.3.1 Drilling head B28H, B28HB

Spare parts - B24H, B28H, B28HB, B28H Vario

Img.7-5: Drilling head B28H

(B) (Vario) ; Version 2.1.7

 2014

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Spare parts - B24H, B28H, B28HB, B28H Vario

7.3.2 Column and drilling table B28H

OPTIMUM

MASCHINEN - GERMANY

Img.7-6: Column and drilling table B28H

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(B) (Vario) ; Version 2.1.7

Page 62

OPTIMUM

MASCHINEN - GERMANY

7.3.3 Column and drilling table B28HB

Spare parts - B24H, B28H, B28HB, B28H Vario

Column and drilling table B28HB

(B) (Vario) ; Version 2.1.7

 2014

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Spare parts - B24H, B28H, B28HB, B28H Vario

7.3.4 Pulleys B28H, B28HB

OPTIMUM

MASCHINEN - GERMANY

Img.7-7: Pulleys B28H

 2014

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(B) (Vario) ; Version 2.1.7

Page 64

OPTIMUM

MASCHINEN - GERMANY

7.3.5 Parts list B28H, B28HB

B28H, B28HB

Spare parts - B24H, B28H, B28HB, B28H Vario

Pos.

Description Qty. Size Item no.

1 Base 1 030202831 2 Column 1 030202832

2-1 Column B28HB 1 0302025202

3 T oothed rack 1 030202833

3-1 Toothed rack B28HB 1 0302025203

4 Toothed wheel 1 030202834 5 Drive screw 1 030202835

5-1 Distance plate 1 0302028351

6 Drill chuck 1 B16 030202836

Drill chuck (year on construction since

6-1

7 Spindle 1 030202837

7-1 Shaft 1 0302028371

8 V-belt 1 030202838

9 Spindle sleeve 1 030202839 9-1 Spring pin 1 5x40 0302028391 9-2 Bushing 1 0302028392

10 Socket head screw 4 M12x60 0302028310 10-1 Washer 4 GB/T93-1987-12 03020283101 10-2 Washer 4 GB/T97.1-1985-12 03020283102

12 Ball bearing 1 6206 0302028312

13 Distance plate 2 0302028313

14 Screw 1 JB-T7270.4-1994-2 0302028314

15 Grip 1 JB-T7270.4-1994-1 0302028315 15-1 Grip complete 1 JB-T7270.4-1994 03020283151

16 Crank 1 0302028316

17 Spindle sleeve feed grip old version 1 0302028317 17-1 Fixture sleeve handle 1 03020283171 17-2 Spindle sleeve handle 3 0302130332

18 Socket head screw 1 M5x20 0302028318

19 Washer 1 0302028319 19-1 Socket head screw 1 M16x90 03020283191

20 Bushing hup scalering 1 03020283201 20-1 Threaded pin 1 M6x6 0302028320

21 Scale ring 1 0302028321

22 Scale 1 0302028322

23 Clamping screw 1 0302028323 23-1 Socket head screw 2 M3x10 03020283231 23-2 Label „spans“ „release“ 1 03020283232

24 Bushing quick action grip 1 0302028324 24-1 Quick action grip 1 03020283241

25 Bolt 1 0302028325 25-1 Hexagonal nut 1 0302028325

26 hexagon bolt 4 M8x25 0302028326 26-1 Washer 4 GB/T93-1987-8 03020283261 26-2 Washer 4 GB/T97.1-1985-8 03020283262

27 Motor 1 0302028327

28 Feather key 1 6x6x20 0302028328

29 Socket head screw 3 M5x10 0302028329 29-1 Washer 2 5 03020283291

30 Belt housing base 1 0302028330

31 Pulley 1 0302028331 31-1 Threaded pin 1 03020283311

32 Belt housing upper part 1 0302028332 32-1 Socket head screw 6 M5x10 03020283321

34 Washer 1 0302028334 34-1 Feather key 1 03020283341

35 Plate closer 1 0302028335

36 Socket head screw 4 M6x15 0302028336 36-1 Washer 4 03020283361 36-2 Socket head screw 4 03020283362 36-3 Articulation 2 03020283363 36-4 Washer 12 03020283364 36-5 Hexagonal nut 12 03020283365

37 Spindle nut 1 0302028337

12/2009)

1 3050626

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B28H, B28HB

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 2014

Pos.

Description Qty. Size Item no.

37-1 Ball bearing 1 6004-2Z 03020283371 37-2 Socket head screw 2 03020283372

38 Pulley 1 0302028338 39 Socket head screw 1 0302028339 40 Socket head screw 7 M6x15 0302028340 41 Motor plate 1 0302028341

42 Drilling head 1 0302028342 42-1 Washer 4 03020283421 42-2 Plate 1 03020283422 42-3 Socket head screw 4 M6x10 03020283423 42-4 Cable connection 2 03020283424 42-5 Bushing 1 03020283425

43 Spacer ring 1 0302028343

44 Ball bearing 2 6205-2R 0406205.2R

45 Circlip 2 DIN472 47x1.6 0302028345

46 Socket head screw 3 M4x10 0302028346

47 Covering plate 1 0302028347

48 Socket head screw 2 M6x30 0302028348

49 Fixing 1 0302028349

50 Knurled screw 1 M6x30 0302028350 50-1 Socket head screw 1 M5x10 03020283501

51 Alu- profile 1 20x20 0302028351

53 View sealing pane drill chuck protection 1 0302028353 53-1 Switch drill chuck 1 230V 0,5A 03020241531

55 Circlip 1 DIN471-12x1 0302028355

56 Box 1 0302028356 56-1 Spanner spiral spring 1 03020283561 56-2 Split pin 2 3x12 03020283562

57 Recuperating spring 1 0302028357

58 recuperating spring seat 1 0302028358

60 Switch plate 1 0302028360 60-1 Switch plate complete 1 03020241119

64 Socket head screw 4 M4x10 0302028364

65 Countersunk screw 2 M5x10 0302028365

66 O-ring 1 0302028366 66-1 Washer 1 03020283661 66-2 Spring 1 03020283662

67 Sliding block 1 0302028367

68 Setscrew 1 M8x15 0302028368

69 Machine illumination 1 0302028369 69-1 Lamp (diode) 1 12V 03020241691

70 Shank pinion 1 0302028370 70-1 Ring 1 03020283701 70-2 Socket head screw 2 M6x16 03020283702 70-3 Spring pin 1 03020283703 70-4 Mechanicel indicator scale 1 03020283704

71 Plate 1 0302028371 71-1 Socket head screw 4 M8x30 03020283711

72 Socket head screw 4 M10x25 0302028372

74 Oiler 1 0302028374

75 Clamping lever 1 0302028375 75-1 Washer 1 16 03020283751

76 Socket head screw 1 M6x20 0302028376

78 Clamping screw 1 M16x80 0302028378

79 Knurled screw 1 M8x20 0302028379

80 Sliding block 1 0302028380

81 Straight pin 1 6x40 0302028381

82 Oiler 2 0302028382

83 Distance plate 1 0302028383 83-1 Threaded pin 1 M6x6 03020283831

84 Key 1 8x8x18 0302028384

85 V-belt 1 0302028385

86 Knee piece 1 0302028386

87 Pulley 1 0302028387

90 Hexagon nut 1 M6 0302028390

92 Ball 1 0302028392

93 Feather 1 0302028393

94 Setscrew 1 M6x20 0302028394

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B28H, B28HB

Spare parts - B24H, B28H, B28HB, B28H Vario

Pos.

Description Qty. Size Item no.

95 Eejector 1 0302028395 97 Circlip 2 0302028397

97-1 Circlip 1 03020283971

98 Bearing 2 6203 0302028398 99 Ring 1 0302028399

99-1 Ring 1 03020283991

100 Setscrew 1 M8x15 03020283100

100-1 Setscrew 1 M8x15 030202831001

101 Washer 1 03020283101 102 Socket head screw 1 M6x20 03020283102 103 Bush button On 1 230V 5A 03020283103 104 Bush button Off 1 230V 5A 0302024185 105 main switch 1 660V 20A 0302024187 106 switch for direction of rotation 1 03020283106 107 light switch 1 250V 6A 03020283107 108 emergency -stop switch 1 600V 10A 0302024190 109 Nut 4 M4 03020283109 110 Counterpart reed contact 1 03020283110 111 Reed contact 1 PS-3150 03020283111 112 Socket head screw 4 M3x10 03020283112 113 Groove nut 1 M24x1,5 03020283113 114 Drilling machine table 1 03020283114 115 Circlip 1 03020283115 116 Cable discharge 1 0302024198

0 Transformer (without illustration) 1 0302024196 0 Contactor (without illustration) 1 230V 16A 0302024197

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7.4 Exploded viewB28H Vario

7.4.1 Drilling head B28H Vario

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Img.7-8: Drilling head B28H Vario

(B) (Vario) ; Version 2.1.7

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7.4.2 Column and drilling table B28H Va rio

Spare parts - B24H, B28H, B28HB, B28H Vario

Img.7-9: Column and drilling table B28H Vario

(B) (Vario) ; Version 2.1.7

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7.4.3 Pulleys B28H Vario

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Img.7-10: Pulleys B28H Vario

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7.4.4 Parts list B28H Vario

B28H Vario

Spare parts - B24H, B28H, B28HB, B28H Vario

Pos.

Description Qty. Size Item no.

117 Plate closer 1 03020285117 118 Belt housing base 1 03020285118 119 Threaded pin 1 03020285119 120 Pulley 1 03020285120 121 V-belt 1 03020285121 122 Socket head screw 3 M5x10 03020285122 123 Washer 3 5 03020285123 124 Belt housing upper part 1 03020285124 125 Socket head screw 6 M5x10 03020285125 126 Nut 4 M3 03020285126 127 Counterpart reed contact 1 03020285127 128 V-belt 1 03020285128 129 Socket head screw 4 M3x10 03020285129 130 Circlip 1 03020285130 131 Circlip 1 03020285131 132 Bearing 1 6203 03020285132 133 Bearing 1 6203 03020285133 134 Pulley 1 03020285134 135 Knee piece 1 03020285135 136 Feather key 1 03020285136 137 Socket head screw 1 03020285137 138 Washer 1 03020285138 139 Groove nut 1 M24x1,5 03020285139 140 Pulley 1 03020285140 141 Hexagonal nut 12 03020285141 142 Washer 12 03020285142 143 Articulation 2 03020285143 144 Washer 1 03020285144 145 Socket head screw 4 M6x15 03020285145 146 Washer 4 03020285146 147 Socket head screw 4 03020285147 148 Socket head screw 4 03020285148 149 Reed contact 1 PS-3150 03020285149 150 Socket head screw 3 M5x10 03020285150 151 Washer 2 5 03020285151 155 Washer 1 03020285155 156 Socket head screw 1 03020285156

157 Spindle sleeve feed grip old versio n 1 03020285157 157-1 Fixture sleeve handle 1 03020283171 157-2 Spindle sleeve handle 3 0302130332

158 Plastic handhold old version 3 03020285158

159 Quick action grip 1 03020285159

160 Clamping screw 1 03020285160

161 Setscrew 1 M8x15 03020285161

162 Cable connection 2 03020285162

163 Scale ring 1 03020285163

164 Knurled screw 1 M8x20 03020285164

165 Bushing quick action grip 1 03020285165

166 Sliding block 1 03020285166

167 Label „spans“ „release“ 1 03020285167

168 Socket head screw 2 M3x10 03020285168

169 Hexagonal nut 1 03020285169

170 Bolt 1 03020285170

171 Socket head screw 6 M3x8 03020285171

172 Cover motor 1 03020285172

173 Flange motor 1 03020285173

174 Socket head screw 6 M6x55 03020285174

175 Cover drilling head 1 03020285175

176 Cover 1 03020285176

177 Brushlesscontroller 1 03020285177 177-1 Trafo 1 030202451771 177-2 EMV-Filter 1 030202451772

178 Socket head screw 3 M4x20 03020285178

179 Feather key 1 03020285179

180 Washer 4 03020285180

181 Drilling head 1 03020285181

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B28H Vario

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 2014

Pos.

Description Qty. Size Item no.

182 Spacer ring 1 03020285182 183 Shaft 1 03020285183 184 Circlip 2 DIN472 47x1.6 03020285184 185 Ball bearing 1 6205-2R 0406205.2R 186 Ball bearing 1 6005 03020285186 187 Circlip 2 DIN472 47x1.6 03020285187 188 Bushing 1 03020285188 189 main switch 1 660V 20A 03020285189 190 Socket head screw 1 03020285190 191 Socket head screw 7 M6x15 03020285191 192 Light switch ON/ OFF 1 250V 6A 03020285192 193 Socket head screw 3 03020285193 194 Covering plate 1 03020285194 195 Circlip 1 DIN471-12x1 03020285195 196 Box 1 03020285196 197 Recuperating spring 1 03020285197 198 Ejector 1 03020285198 199 Spring 1 03020285199 200 Ball 1 03020285200 201 Digital display 1 03020285201 202 Cooling pump switch ON/ OFF 1 250V 6A 03020285202 203 switch for direction of rotation 1 03020285203 204 Switch plate 1 03020285204 205 Potentiometer 1 03020285205 206 Socket head screw 4 M4x10 03020285206 207 emergency -stop switch 1 600V 10A 03020285207 208 Switch ON/OFF 1 03020285208 209 Connector electric supply 1 03020285209 210 Countersunk screw 2 M5x10 03020285210

211 Alu- profile 1 20x20 03020285211 212 Socket head screw 2 M6x30 03020285212 213 Socket head screw 1 M5x10 03020285213 214 Spanner spiral spring 1 03020285214 215 Split pin 2 3x12 03020285215 216 Bushing 1 03020285216 217 Setscrew 1 M6x20 03020285217 218 Hexagon nut 1 M6 03020285218 219 Rotation speed sensor 1 03020285219 220 Holder 1 03020285220 221 Machine illumination 1 03020285221 222 Hexagonal nut 2 03020285222 223 Sliding block 1 03020285223 224 View sealing pane drill chuck protection 1 03020285224 225 Spring 1 03020285225 226 Washer 1 03020285226 227 Ball bearing 1 6206 03020285227 228 Spring pin 1 5x40 03020285228 229 Spindle sleeve 1 03020285229 230 O-ring 1 03020285230 231 Bushing 1 03020285231 232 Ball bearing 1 6004-2Z 03020285232 233 Shank pinion 1 03020285233 234 Spindle nut 1 03020285234 235 Socket head screw 2 03020285235 236 Key 1 8x8x18 03020285236 237 Mechanicel indicator scale 1 03020285237 238 Ring 1 03020285238 239 Spring pin 1 03020285239 240 Socket head screw 2 M6x16 03020285240 241 Scale 1 03020285241 242 Straight pin 1 6x40 03020285242 243 Bushing hup scalering 1 03020285243 244 Key 1 03020285244 245 Spindle 1 03020285245 246 Drill chuck 1 3050626

Drill chuck (year on construction since

246-1

247 Motor 1 230V 1,5kW 03020285247

12/2009)

1 3050573

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Spare parts - B24H, B28H, B28HB, B28H Vario

Pos.

Description Qty. Size Item no.

248 Socket head screw 4 M8x25 03020285248 250 Base 1 03020285250 251 Plate coolant reservoir 1 03020285251 252 Washer 1 8 03020285252 253 Socket head screw 1 M8x12 03020285253 254 Coolant hose 1 03020285254 255 Washer 4 GB97.1-85-10 Socket head screw 256 Washer 4 GB93-87-10 03020285256 257 Socket head screw 4 M10x40 03020285257 258 Distance plate 1 03020285258 259 Toothed wheel 1 03020285259 260 Distance plate 1 03020285260 261 Drive screw 1 03020285261 262 Hose clip 2 03020285262 263 Setscrew 1 M8x15 03020285263 264 Toothed rack 1 03020285264 265 Screw 1 JB-T7270.4-1994-2 03020285265 266 Grip 1 JB-T7270.4-1994-1 03020285266

266-1 Grip complete 1 JB-T7270.4-1994 030202852661

267 Distance plate 1 03020285267 268 Threaded pin 1 M6x6 03020285268 269 Crank 1 03020285269 270 Socket head screw 1 M6x20 03020285270 271 Shaft 1 03020285271 272 Oiler 1 03020285272 273 Socket head screw 1 M16x90 03020285273 274 Clamping lever 1 03020285274 275 Washer 1 16 03020285275 276 Clamping screw 1 03020285276 277 Oiler 2 03020285277 278 Setscrew 1 M8x15 03020285278 279 Ring 1 03020285279 280 Drilling machine table 1 03020285280 281 Coolant hose 1 03020285281 282 Holder 1 03020285282 283 Ball valve 1 03020285283 284 Flexible coolant hose 1 03020285284 285 Clamping screw 1 M6x12 03020285285 286 Hexagon socket screw 2 M6x14 03020285286 287 Ring 1 03020285287 288 Socket head screw 4 M8x30 03020285288 289 Plate 1 03020285289 290 Socket head screw 4 M10x25 03020285290 291 Hose clamp 4 03020285291 292 Column 1 03020285292 293 Coolant hose 1 03020285293 294 Hose clip 1 03020285294 295 Socket head screw 1 M6x10 03020285295 296 Washer 1 GB97.1-85-6 03020285296 297 Coolant pump 1 03020285297 298 Circlip 1 03020285298 299 Pump relay 1 03020285299 300 Cable discharge 1 0302024198

(B) (Vario) ; Version 2.1.7

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7.5 Wiring diagram B28H (B) - 115V, 60Hz

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Img.7-11: Wiring diagram B28H - 400V

(B) (Vario) ; Version 2.1.7

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7.6 Wiring diagram B28H Vario - 230V, 60Hz

Spare parts - B24H, B28H, B28HB, B28H Vario

Img.7-12: Wiring diagram B28H Vario

(B) (Vario) ; Version 2.1.7

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7.7 Wiring diagram B28H Vario - 230V, 60Hz

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Img.7-13: Wiring diagram B28H Vario

(B) (Vario) ; Version 2.1.7

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8 Troubleshooting

Problem Cause / possible effects Solution

Troubleshooting

FI protective switch on machines with frequency converter triggers.

Motor gets hot Noise during working

Bit „burnt“

Bit tip moves, bore hole is not circular

Defective bit

Bit running off-centre or „hoping“

• an unusual FI protective switch is being used

• wrong power supply

• Spindle turning dry

• Tool blunt or is being incorrectly secured

• bit speed too high/too much feed

• The chips have not been removed from the bore hole

• Bit dull

• no or too little cooling

• hard part on the work piece

• Unequal length of the cutting spiral or angles in the bit.

• Bit deformed

• No support used. • Use a wooden board and secure

• Bit deformed

• spindle bearing worn out

• Bit badly secured.

• Drill chuck defective.

•  „Power supply“ on page 33

• Grease spindle (only in the dismantled condition possible)

• Use new tool and check securing (fixed setting of the bit, drill chuck and morse taper).

• Select another speed

• Extract the bit more often

• Sharpen or replace bit

• Use coolant.

• Replace bit

it to the work piece

• Replace bit

• replace spindle bearing

• Secure the bit properly

• Replace the drill chuck

Impossible to introduce drill chuck or morse taper

Motor does not start

Overheating of motor and lack of power

Precision of the work deficient

Drill spindle does not return to its initial position

Impossible to move the drill spindle sleeve downwards.

• There is dirt, grease or oil on the inner conical surface of the drill chuck or on the conical surface of the drill spindle

• motor badly connected

• Defective fuse

• motor overloaded

• Insufficient mains voltage

• motor badly connected

• Heavy and unbalanced or twisted work piece

• Failure of spindle return spring

• Locking bolt inserted

• Drill depth adjustment no released

• Clean surfaces well

• Keep surfaces fat free

• Have it checked by authorized personnel

• Reduce feed, disconnect if necessary

• Have it checked by authorized personnel

• Balance work piece statically and secure it without straining

• Adjust work piece holder

• Check spindle return spring and replace if necessary

• Remove locking bolt

• Pull out the locking bolt

• Release drill depth adjustment

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Troubleshooting

Problem Cause / possible effects Solution

OPTIMUM

MASCHINEN - GERMANY

Spindle bearings overheating

Working spindle rattling on rough piece surfaces

• Bearing worn down

• Excessive prior tension of the bearing

• Working at high rate for a long time

• Excessive slack in bearing

• Working spindle goes up and down

• Adjustment strip loose

• Chuck loose

• Tool blunt

• Piece loose

•Replace

• Reduce bearing slack for fixed bearing (conical-roller bearing)

• Reduce bit speed/feed

• Reduce bearing slack or replace bearing

• Readjust bearing slack (fixed bearing)

• Adjust strip to the correct slack using the adjusting screw

• Check, re-tighten

• Sharpen or replace tool

• Secure the piece properly

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9 Appendix

9.1 Copyright

 2014 This documentation is copyright. All derived rights are also reserved, especially those of transla-

tion, re-printing, use of figure s, broadcast, reproduction by photo-mechanical or similar means and recording in data processing systems, neither partial nor total.

The company reserves the right to make technical alternations without prior notice.

9.2 Terminology/Glossary

Term Explanation

Drift Tool for removing the bit or the drill chuck from the drill

Drill chuck Fixture for holding the bit Drill head Upper part of the bench drill and upright drill

Appendix

spindle

Drill sleeve Fixed hollow shaft which runs in the drill spindle Drill spindle Shaft activated by the motor Drilling table Support surface, clamping surface Keyless drill chuck Manually tightenable bit holding fixture Morse taper Taper of the bit or drill chuck Spindle lever Manual control for the drill fee Tool Milling cutter, drill bit, countersink, etc. Workpiece Piece to be drilled or machined

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Page 79

Appendix

9.3 LIMITED WARRANTY

OPTIMUM ONE-YEAR LIMITED WARRANTY. OPTIMUM, MODELS COVERED IN THIS MANUAL, ARE WARRANTED BY OPTIMUM TO THE ORIGINAL USER AGAINST DEFECTS IN WORKMANSHIP OR MATERIALS UNDER NORMAL USE FOR ONE YEAR AFTER DATE OF PURCHASE. ANY PART WHICH IS DETERMINED TO BE DEFECTIVE IN MATERIAL OR WORKMANSHIP AND RETURNED TO AN AUTHORIZED SERVICE LOCATION, AS OPTIMUM DESIGNATES, SHIPPING COSTS PREPAID, WILL BE, AS THE EXCLUSIVE REMEDY, REPAIRED OR REPLACED AT OPTIMUM OPTION. FOR LIMITED WARRANTY CLAIM PROCEDURES, SEE "PROMPT DISPOSITION" BELOW. THIS LIMITED WARRANTY GIVES PURCHASERS SPECIFIC LEGAL RIGHTS WHICH VARY FROM JURISDICTION TO JURISDICTION.

LIMITATION OF LIABILITY. TO THE EXTENT ALLOWABLE UNDER APPLICABLE LAW, OPTIMUM LIABILITY FOR CONSEQUENTIAL AND INCIDENTAL DAMAGES IS EXPRESSLY DISCLAIMED. OPTIMUM LIABILITY IN ALL EVENTS IS LIMITED TO AND SHALL NOT EXCEED THE PURCHASE PRICE PAID.

WARRANTY DISCLAIMER. A DILIGENT EFFORT HAS BEEN MADE TO PROVIDE PRODUCT INFORMATION AND ILLUSTRATE THE PRODUCTS IN THIS LITERATURE ACCURATELY; HOWEVER, SUCH INFORMATION AND ILLUSTRATIONS ARE FOR THE SOLE PURPOSE OF IDENTIFICATION, AND DO NOT EXPRESS OR IMPLY A WARRANTY THAT THE PRODUCTS ARE MERCHANTABLE, OR FIT FOR A PARTICULAR PURPOSE, OR THAT THE PRODUCTS WILL NECESSARILY CONFORM TO THE ILLUSTRATIONS OR DESCRIPTIONS. EXCEPT AS PROVIDED BELOW, NO WARRANTY OR AFFIRMATION OF FACT, EXPRESSED OR IMPLIED, OTHER THAN AS STATED IN THE "LIMITED WARRANTY" ABOVE IS MADE OR AUTHORIZED BY OPTIMUM.

Technical Advice and Recommendations, Disclaimer. Notwithstanding any past practice or dealings or trade custom, sales shall no t include the furnishing of technical advice or assistance or system design. OPTIMUM assumes no obligations or liability on account of any unauthorized recommendations, opinions or advice as to the choice, installation or use of products.

Product Suitability. Many jurisdictions have codes and regulations governing sales, construction, installation, and/or use of products for certain purpose s, which may var y from those in neighboring areas. While attempts are made to assure that OPTIMUM products comply with such codes, OPTIMUM cannot guarantee compliance, and cannot be responsible for how the product is installed or used. Before purchase and use of a product, review the product applications, and all applicable nat ional and local codes and regulations, and be su re that the product, installation, and use will comply with them.

Certain aspects of disclaimers are not applicable to consumer products; e.g., (a) some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you; (b) also, some jurisdictions do not allow a limitation on how long an implied warranty lasts, consequently the above limitation may not apply to you; and (c) by law, during the period of this Limited Warranty, any implied warranties of implied merchantability or fitness for a particular purpose applicable to consumer products purchased by consumers, may not be excluded or otherwise disclaimed.

Prompt Disposition. A good faith effort will be made for prompt correction or other adjustment with respect to any product which proves to be defective within limited warranty. For any product believed to be defective within limited warranty, first write or call dealer from whom the product was purchased. Dealer will give additional directions. If unable to resolve satisfactorily, write to OPTIMUM at address below, giving dealer's name, address, date, and number of dealer's invoice, and describing the nature of the defect. Title and risk of loss pass to buyer on delivery to common carrier. If product was damaged in transit to you, file claim with carrier.

Manufactured for OPTIMUM, LDS Industries, LLC, 930 W. National Ave. Addison, IL 60101, Tel.: 1-630-785-6437.

OPTIMUM

MASCHINEN - GERMANY

 2014

21 / 07 / 2014 Page 79Appendix Bench drill and upright drill B24H ; B28H (B) (Vario) ; Version 2.1.7

Page 80

OPTIMUM

MASCHINEN - GERMANY

10 Index

Accident report ........................................15

Assembly

Classification of hazards .........................6

Dimensions ..............................................20

Dimensions B24H Dimensions B28H Dimensions B28H Vario Dimensions B28HB Drill depth stop Drilling capacity Drilling machine table

Electrical ..................................................15

EMERGENCY-STOP button Emissions Environmental conditions

First use ...................................................33

Inspection ................................................50

LIMITED WARRANTY .............................79

Maintenance ............................................50

Obligations

Operating material Other pictograms

Power connection ....................................16

Power supply Proper use

Qualification of employees ......................9

Required space .......................................17

Safety Safety devices

Safety warnings Scope of delivery Speed table

.................................................23

Drilling machine table B24H (B28HB) Drilling machine table B28H (Vario)

..27

.................................................78

........................................46

....................................19

....................................21

..........................22

.................................20

........................................41

.......................................16

..............................16

...................12

................................................17

........................17

Operator User

............................................9

..................................................10

...................................17

.....................................7

...........................................33

...............................................8

during maintenance

..........................14

.........................................10

.......................................6

.....................................23

................................................ 40

B24H B28H

................................................ 41

B28H (B)

B28HVario Speeds Spindle Storage

........................................... 40

........................................ 40

.................................................... 17

.................................................... 16

................................................... 24

Table cutting speeds ............................... 46

Table cutting speeds / infeed Technical data Transport Troubleshooting

......................................... 16

................................................. 23

...................................... 76

.................. 46

Warnings ................................................. 6

Index

 2014

21 / 07 / 2014Page 80 Index B24H ; B28H (B) (Vario) ; Version 2.1.7

Optimum B 24 H, B 28 HB, B 28 H Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

1 Safety

2 Technical Data

3 Assembly

4 Operation

5 Determining the cutting speed and the speed

6 Maintenance

7 Spare parts - B24H, B28H, B28HB, B28H Vario

8 Troubleshooting

9 Appendix

10 Index