Thomas Cut 250 Use And Maintenance Manual
Bulletin 4390-974250
FluidConnectors
Cut 250 Saw Use and
Maintenance Manual
Part Number: 974250
Effective: September 1, 1999
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
FAILURE OR IMPR OPER SELECTION OR IMPROPER USE OF THE PR ODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CA USE DEATH, PERSONAL
INJURY AND PROPERTY DAMAGE .
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by
users having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product
catalog. Due to the va riety of operating conditions and applications for these products or systems , the user, through its own analysis and testing, is solely responsible for making the
final selection of the products and systems and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation
and its subsidiaries at any time without notice.
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are
governed by the provisions stated in the "Offer of Sale".
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WARNING
Offer of Sale
Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Contents
Cut 250 Saw Use and Maintenance Manual
Contents ............................................................................ 1
Ordering Spare Parts ....................................................... 1
Guarantee .......................................................................... 1
Machine Certification and Identification Marking ......... 2
CHAPTER 1______________________________________
Reference to Accident-Prevention Regulations ............ 3
1.1 – Advice for the operator ........................................... 3
1.2 – Location of shields against accidental contact with
the tool .................................................................... 3
1.3 – Electrical equipment according to European
Standard "CENELEC EN 60 204-1" (1992)............ 3
1.4 – Emergencies according to European Standard
CENELEC EN 60 204-1" (1992)............................. 3
CHAPTER 2______________________________________
Recommendations and Advice for Use .......................... 3
2.1 – Recommendations and advice
for using the machine ............................................. 3
CHAPTER 3______________________________________
Technical Characteristics ................................................ 4
3.1 – Table of cutting capacity and technical details ....... 4
CHAPTER 4______________________________________
Machine Dimensions – Transport –
Installation – Dismantling ................................................ 4
4.1 – Machine dimensions ............................................... 4
4.2 – Transpor t and handling of the machine .................. 4
4.3 – Minimum requirements for the premises
housing the machine .............................................. 5
4.4 – Anchoring the machine ........................................... 5
4.5 – Instructions for electrical connection ...................... 5
4.6 – Instructions for assembly of
the loose parts and accessories............................. 5
4.7 – Deactivating the machine ....................................... 5
CHAPTER 5______________________________________
Machine Functional Parts................................................ 5
5.1 – Operating head ....................................................... 5
5.2 – Vice ......................................................................... 6
5.3 – Bed .......................................................................... 6
CHAPTER 6______________________________________
Description of the Operating Cycle ................................ 6
6.1 – Starting up and cutting cycle .................................. 6
CHAPTER 7______________________________________
Regulating the Machine ................................................... 7
7.1 – Saw head ................................................................ 7
7.2 – Vice ......................................................................... 7
7.3 – Regulating arm blockage ........................................ 7
7.4 – Changing the blade................................................. 7
7.5 – Changing the lubricating coolant pump .................. 7
CHAPTER 8______________________________________
Routine and Special Maintenance .................................. 7
8.1 – Daily maintenance .................................................. 7
8.2 – Weekly maintenance .............................................. 7
8.3 – Monthly maintenance ............................................. 7
8.4 – Six-monthly maintenance ....................................... 8
8.5 – Oils for lubricating coolant ...................................... 8
8.6 – Special maintenance .............................................. 8
CHAPTER 9______________________________________
Material Classification and Choice of Tool ....................8
9.1 – Definition of materials ............................................. 8
9.2 – Choosing the blade................................................. 9
9.3 – Teeth pitch .............................................................. 9
9.4 – Cutting and advance speed.................................... 9
9.5 – Breaking in the blade .............................................. 9
9.6 – Type of blade ........................................................... 9
Tooth shape ............................................................ 9
Tooth cutting angle ................................................. 9
Sharpening circular saws ..................................... 10
9.6.1 – Table of recommended cutting parameters .......... 10
9.6.2 – Table of cutting speed according to
blade diameter ...................................................... 11
CHAPTER 10_____________________________________
Machine Components .................................................... 12
10.1 – List of spare parts ................................................. 12
CHAPTER 11_____________________________________
Wiring Diagrams ............................................................. 15
CHAPTER 12_____________________________________
Troubleshooting.............................................................. 17
12.1 – Blade and cut diagnosis ....................................... 17
12.2 – Electrical components diagnosis .......................... 19
CHAPTER 13_____________________________________
Noise T ests ...................................................................... 19
Plates and Labels ........................................................... 20
Offer of Sale .................................................................... 21
Ordering Spare Parts
• When ordering spare par ts you must state:
Machine model
Serial number
Part reference number
Without these references
See point 10.1 – List of spare parts.
we will not supply
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the spare parts.
Guarantee
• The Company guarantees that the machine to which this
manual refers has been designed and built to comply with
safety regulations and that it has been tested for functionality in the factory.
• The machine is guaranteed for 12 months: the guarantee
does not cover the electric motors, electric components,
pneumatic components or any damage due to dropping or
machine misuse, the failure to observe maintenance standards or bad handling by the operator.
1
Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
Machine Certificaton and Identification
Machine Certification and Identification Marking
MACHINE LABEL
via Pasubio, 32 36033 ISOLA VIC. - ITALIA
MODEL
TYP
SERIAL NUMBER
YEAR OF MANUFACTURE
CUT 250
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Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
Reference to Accident-
1
1.1 — Advice for the operator
•Check that the voltage indicated on the plate, normally fixed
•Check the efficiency of your electric supply and grounding
•When the tool head is in rest position (raised), the toothed
•It is not recommended to operate saw without its shields
•Always disconnect the power source before changing the
•It is not recommended to disconnect the “man present” de-
•Always wear eye protection.
•Never put your hands or arms into the cutting area while the
•Do not move the machine while it is cutting.
•Do not wear loose clothing , gloves that are too big, brace-
•Keep the area free of equipment, tools or any other object.
•Perform only one operation at a time and never have sev-
•All internal and/or external operations, maintenance or re-
1.2 — Location of shields against accidental
contact with the tool
Prevention Regulations
This machine has been built to comply with the national
and community accident-prevention regulations in force.
Improper use and/or tampering with the safety devices will
relieve the manufacturer of all responsibility.
to the machine motor, is the same as the line voltage.
system; connect the power cable of the machine to the socket
and the ground lead (yellow-green in color) to the ground
system.
blade must be stationary.
(these are all white, blue or grey in color).
blade or carrying out any maintenance job, even in the case
of abnormal machine operation.
vice, known more correctly in the EEC as the “safety switch
with hold-down action”.
machine is operating.
lets, chains or any other object that could get caught in the
machine during operation; tie back long hair.
eral objects in your hands at the same time.
pairs, should be performed in a well-lit area or where there
is sufficient light from extra sources so as to avoid the risk of
accidents.
1.3 — Electrical equipment according to
European Standard “CENELEC EN 60 204-1”
which assimilates, with some integrating
modifications, the publication “IEC 204-1
(1992)”
•The electrical equipment ensures protection against electric
shock as a result of direct or indirect contact. The active
parts of this equipment are housed in a box to which access
is limited by screws that can only be removed with a special
tool; the parts are fed with alternating current at low voltage
(24 V). The equipment is protected against splashes of water and dirt.
•Protection of the system against short circuits is ensured by
means of fuses and grounding; in the event of motor overload, protection is provided by a thermal probe.
•In the event of a power cut, the specific start-up button must
be reset.
•The machine has been tested in conformity with point 20 of
EN 60204.
1.4 — Emergencies according to European
Standard “CENELEC EN 60 204-1 (1992)”
•In the event of incorrect operation or of danger conditions,
the machine may be stopped immediately by pressing the
red mushroom button.
NOTE:Resetting of machine operation after each emergency
stop is achieved by reactivating the specific restart
button.
Recommendations
2
2.1 — Recommendations and advice for using
the machine
•The machine has been designed to cut tubing with different
•Only one operator is needed to use the machine.
and Advice for Use
shapes and profiles.
•Grey metal shield screwed onto the saw head.
•Self-regulating mobile blue plastic shield, fitted coaxially with
the fixed shield.
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Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
•To obtain break-in of the machine it is advisable to start using it at intervals of about half an hour. This operation should
be repeated two or three times, after which the machine
may be used continuously.
•Before starting each cutting operation, ensure that the part
is firmly gripped in the vice and that the end is suitably supported.
•Do not use blades of a different size from those stated in the
machine specifications.
•If the blade jams in the tube, release the running button
immediately, switch off the machine, open the vice slowly,
remove the part and check that the blade or its teeth are not
broken. If they are broken, change the blade.
•Before carrying out any repairs on the machine, consult the
dealer or call Parker Tube Fittings Division.
Technical
3
3.1 — Table of cutting capacity
and technical details
Characteristics
Machine Dimensions –
4
Transport – Installation –
Dismantling
4.1 — Machine dimensions
800
1550 WITH PEDESTAL
940
410
770
360
Cutting
Capacity
90° 30 70 65 100 x 45
45° DX 25 60 55 65 x 150
•Three-phase el. motor for
2-speed blade rotation kW 0.75 ÷ 0.95
•Single-phase el. motor for
1-speed blade rotation kW 0.9
•Reduction gear in an oil bath Ratio=1:32
•Maximum blade diameter mm 250
•Blade rotation speed rpm 40 ÷ 80
•Vice opening mm 105
•Machine weight kg 80
4.2 — Transport and handling of the machine
If the machine has to be moved, use a fork-lift truck or sling it
with straps as illustrated.
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Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
4.3 — Minimum requirements for the premises
housing the machine
• Main voltage and frequency complying with the machine motor characteristics.
• Environment temperature from -10°C to +50°C.
• Relative humidity not over 90%.
4.4 — Anchoring the machine
580
440
AA
560
270 290
• Position the machine base on a firm cement floor, maintaining, at the rear, a minimum distance of 800 mm from the
wall; anchor it to the ground as shown in the diagram, using
screws and expansion plugs or tie rods sunk in cement, ensuring that it is sitting level.
7070
M8
12
SEC. A - A
PEDEST AL PROFILE
4.5 — Instructions for electrical connection
• The machine may not be provided with an electric plug.
4.6 — Instructions for assembly of the loose
parts and accessories
Attach the components supplied as indicated in the photo:
• part. 1 Screw the lever onto the head
• part. 2 Attach the bar holding rod
• part. 3 Attach the pedestal fir mly onto the base
1
2
3
4.7 — Deactivating the machine
If the sawing machine is not to be used for a long period, it is
advisable to proceed as follows:
1) Detach the plug from the electric supply panel
2) Release the head return spr ing
3) Empty the coolant tank
4) Carefully clean and grease the machine
5) If necessar y, cover the machine.
1 – WIRING DIAGRAM FOR 5-WIRE SYSTEM WITH NEU-
TRAL FOR THREE-PHASE MACHINE - SOCKET FOR A
16A PLUG
R = L1
S = L2
T = L3
PE = GND
N = NEUTRAL
2 – WIRING DIAGRAM FOR THE SINGLE-PHASE SYSTEM
SOCKET FOR A 16A PLUG
= L1
= L2
= PE
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Machine Functional Parts
5
5.1 — Operating head
• Machine part composed of the par ts that transmit movement (motor, reduction unit), the lubricating coolant pump
and the electrical components.
5
Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
Bulletin 4390-974250
Cut 250 Saw Use and Maintenance Manual
5.2 — Vice
• System for gripping material during the cutting operation,
operated with handwheel.
Provided with an anti-burr device for holding the part that is
to be cut.
5.3 — Bed
• Suppor t structure for the OPERATING HEAD (rotating ar m
for gradual cutting, with respective blocking system), the
VICE, the BAR STOP, and the housing for the cutting coolant TANK.
Description of the
6
6.1 — Starting up and cutting cycle
3
• Ensure that the machine is not in emergency stop condition;
• Select the cutting speed on the switch (3):
• Press the star t/reset button (2): green light will go on.
Operating Cycle
2
1
if it is, release the red mushroom button (1).
position 1 = 40 rpm
position 2 = 80 rpm
6
4
5
• Place material to be cut in the vice (4) and clamp the par t
into place by handwheel (5).
• Grip the handle (6) of the HEAD control ar m and press the
button, checking that the blade is turning in the direction
indicated (if not, invert the two phase leads) and that sufficient coolant is flowing.
• When starting to cut with a new blade, in order to safeguard its life and efficiency, the first two or three cuts
must be made while exerting a slight pressure on the
part, so that the time taken to cut is about double the
normal time (see below in the chapter on “Material classification and choice of blades” in the section on
in the blade
• Press the red emergency button (1) when there are conditions of danger or malfunctions in general, so as to stop
machine operation immediately.
).
Breaking
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6
Parker Hannifin Corporation
Tube Fittings Division
Columbus, OH
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