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26

TROUBLE SHOOTING (Continued....)

SAW BAND IS NOT RUNNING TRUE AGAINST 

THE SAW GUIDE BACK-UP BEARINGS (May    

Cause Vbraton)

1. 

Examine  the  carbide  back-up  bearings.  Replace 

them if they are chipped or worn more than 0.020-

inch (0.5 mm).

2. 

Have a DoALL service representative check machine 

alignment.

3. 

Check for worn saw guide pivot bolts.

4. 

Saw guides are loose, or not positioned close enough 

to the stock.

INACCURATE CUT-OFF

1. 

Check for worn or dull blade teeth.

2. 

Check for a hard spot in stock being cut.

3. 

Band  brush  is  not  properly  cleaning  the  blade 

teeth.

4. 

Increase band speed being used and/or decrease 

feed force.

5. 

Check for dirty coolant.  Replace if necessary.

6. 

Check for crooked stock (this can result in straight, 

but not square cuts).

7. 

Saw guides are loose, or not positioned close enough 

to the stock being cut.

8. 

Saw band pitch choice is incorrect.

9. 

Check for incorrect adjustment of inserts, back-up 

bearing, or worn pivot bolts.

10. 

Check machine alignment. Have a DoALL service 

representative  check  and/or  adjust  machine 

alignment.

11. 

Check for coolant not being supplied evenly to both 

sides of the saw band.

SURFACE FINISH OF CUT-OFF PIECE IS TOO 

ROUGH

1. 

Check for vibration while sawing.

2. 

Check for a damaged saw band.

3. 

Use a finer pitch saw band.

6. 

Check for chip welding, or a chipped blade tooth 

lodged in the cut. 

7. 

Saw band being used is incorrect.

8. 

Coolant mixture is too weak, or incorrect coolant is 

being used.

9. 

Check for saw band vibration.

10. 

Decrease feed pressure to "break in" a new saw 

band on its first few cuts. 

BLADE TEETH STRIPPING

1. 

Increase band speed or decrease feed pressure.

2. 

Check for chip welding, or for a chipped blade tooth 

lodged in the cut.

3. 

Faulty stock is being used:  Check for heavy scale, 

inclusions, hard spots, etc.

4. 

Check  for  a  worn,  or  improperly  adjusted  band 

brush.

5. 

Check for vibration caused by loose vise jaw clamping 

against the stockpiece. 

6. 

Check for worn saw guide inserts and/or carbide 

back-up bearing.

7. 

Coolant is not being applied correctly.

8. 

Check for incorrect saw band tension being used.

9. 

Saw band pitch may be too coarse for thickness of 

the stock section.

SAW BAND BREAKAGE

1. 

The saw band is being fed into the stockpiece due 

to incorrect saw head feeding rate.

2. 

Increase band speed being used and/or decrease 

feed force.

3. 

Check for stock not being held firmly by the vise 

jaws.

4. 

Check for incorrect adjustment of the saw guide 

inserts and carbide back-up guides.

5. 

Check for insufficient coolant flow.

6. 

Use a finer pitch saw band.

Summary of Contents for TF-2025M

Page 1: ...TF 2025M Serial No 543 99101 to Band Sawing Machine Instruction Manual...

Page 2: ...nine 9 months to file a claim 1 You have fourteen 14 days to report damage not noted at time of delivery a Report damage as soon as possible This makes it easier to prove that it did not happen at co...

Page 3: ...orrespondence or parts orders Specifications contained herein were in effect at the time this manual was approvedforprinting TheDoALLCompany whosepolicyisoneofcontinuous improvement reserves the right...

Page 4: ...0 Laser Line Option 30 Fixed Head Non Tilting 30 3 Head Cant 30 MACHINE DIMENSIONS Floor Plan 1 Front View 2 Side View 3 MACHINE FEATURES Front and Side Views 4 Head Assembly 5 Proximity Limit Switch...

Page 5: ...MACHINE DIMENSIONS INCHES 03 MILLIMETERS 1 mm FLOOR PLAN...

Page 6: ...FRONT VIEW MACHINE DIMENSIONS Continued INCHES 03 MILLIMETERS 1 mm...

Page 7: ...MACHINE DIMENSIONS Continued SIDE VIEW INCHES 03 MILLIMETERS 1 mm...

Page 8: ...MACHINE FEATURES SIDE VIEW FRONT VIEW...

Page 9: ...MACHINE FEATURES Continued HEAD ASSEMBLY...

Page 10: ...MACHINE FEATURES Continued PROXIMITY LIMIT SWITCH LOCATIONS REAR VIEW HEAD TOP VIEW...

Page 11: ...1 If necessary use solvent to remove rust preventive coating applied to exposed bare metal surfaces before shipment LIFTING NEVER lift the machine by its sawing head 1 There is three 3 forged 3 4 10N...

Page 12: ...matic if necessary 8 Place the operating shaft and operating handle of the disconnect switch in the OFF position Then a Close the electrical cabinet door and secure its screws b Now turn the electrica...

Page 13: ...drecommendedbytheLubrication Chart DO NOT let coolant spill over the tray and onto the floor The coolant pump intake must be sufficiently submerged for coolant flow to reach all areas in the coolant s...

Page 14: ...is information is listed according to type of material to be cut and its thickness The Job Selector also has a checklist for proper machine operation and saw band break in procedures JobSelectorrecomm...

Page 15: ...ft Lift Roller Optional This selector switch operates the left hand inboard lift roller in the UP or DOWN positions 2 LeftVise Thisselectorswitchwith OPEN HOLD and CLAMP settings operate the vise on t...

Page 16: ...band speed counterclockwise to decrease it 8 Post This selector switch with DOWN HOLD and UP settings regulate post movement a Rotating the selector to DOWN lowers the post b The UP position raises th...

Page 17: ...radjustingknobuntil thedesiredpressureisshownbytheindicatorgauge Turn the knob clockwise to increase pressure counterclockwise to decrease pressure 15 Chip Conveyor Optional This selector switch with...

Page 18: ...ttings allows the operator to turn the power off or on to the conveyor This is used in conjunction with the Conveyor Speed Direction control 4 Conveyor Speed Direction This two position joystick allow...

Page 19: ...ine to thefollowingconditions a Hydraulicsare ON b Banddrivemotoris OFF c Coolantiscompletely shut off d Saw head is vertical and completely retracted 2 Turn the Band Tension selector switch to OFF Th...

Page 20: ...bandwheel rear flange POST ADJUSTMENT 1 Post and upper saw guide height is regulated by the Post selector switch on the control panel 2 Sawing results will generally be more satisfactory if the post a...

Page 21: ...Using the proper cutting fluid reduces the heat generated during operation It also helps the machine take full advantage of its high speed steel saw bands Literature describing these and other coolant...

Page 22: ...Control selector to FWD AUTO and position the saw band just behind the vise then move the Saw Head Control selector to the HOLD setting 6 Tilt the saw head to desired setting and align for a good cut...

Page 23: ...WD AUTO and then push the Head Rapid Approach pushbutton 2 When pushing the Head Rapid Approach pushbutton the saw head will move forward at a rapid speed until it reaches the feed zone The Feed Force...

Page 24: ...11 Lubrication intervals are based on a 8 hour day 40 hour week Lubricate more often with heavier use Band Tension Slide Clean and apply grease Vise Movable Jaw Slides Gibs Four 4 grease fittings 1 fo...

Page 25: ...21 LUBRICATION DIAGRAMS HEAD VIEW TOP VIEW...

Page 26: ...is the recommended product 3 Before changing the hydraulic fluid a Retract the saw head completely b Push the Hydraulic Stop button c Remove the reservoir drain plug d Allow the reservoir to drain co...

Page 27: ...OALL hydraulic fluid with an aniline point of approximately 221 F 106 C will not cause deterioration of component seals COOLANT SYSTEM 1 The machine s coolant drip pan has a 20 gallon 75 7 liter capac...

Page 28: ...nveyor trough d Clean out the chip box and the reservoir floor e Replace the conveyor HEAD ANGLE DISPLAY CALIBRATION 1 If some unusual event or a repair has been made it will be necessary to calibrate...

Page 29: ...closed SAW BAND STALLS DURING A CUT 1 Decrease saw head feeding pressure 2 Increase band speed and or head approach rate 3 Check for low hydraulic pressure 4 Check for pinching of saw band in the mate...

Page 30: ...ROUGH 1 Check for vibration while sawing 2 Check for a damaged saw band 3 Use a finer pitch saw band 6 Check for chip welding or a chipped blade tooth lodged in the cut 7 Saw band being used is incorr...

Page 31: ...W HEAD DOESN T TILT 1 Check for faulty operation of Solenoids 5 and 6 2 Check adjustment of the head rear proximity switch 3 PRS SAW HEAD WON T TRAVERSE 1 The head approach rate setting is too low 2 V...

Page 32: ...For Conveyors 1 Vertical guide rollers are effectively used to help maintain correct positioning of long stock on the conveyor 2 These can be installed between the interface plate and conveyor or betw...

Page 33: ...e time a Adjust the hydraulic restrictor valve at the rod end of the front and or outboard vise cylinders to achieve relatively equal release 3 Move the the vise s rod end hose s to indicated position...

Page 34: ...e laser beam 1 A laser devise is used to emit a line on the material to be cut This line shows the approximate spot where the cut will take place 2 The devise is controlled by a selector switch with O...

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