29
TROUBLE SHOOTING
Repair and adjustment procedures should be
madeonlybyexperiencedmaintenanceper-
sonnel, or by a DoAll Indusrtial Supply Center
representative. Reference to the machine's
electrical and hydraulic schematics will be
helpful.
MACHINE WILL NOT START
1. Check that the disconnect switch is in the “on” posi-
tion.
2. Check that the bandwheel doors are closed.
3. The hydraulic pump motor must be on and SAW
HEAD control must be in "down/auto" before the
band drive motor will start.
4. The Emergency Stop pushbutton needs to be reset
(rotate the button head clockwise).
5. The band broken proximity switch (1 PRS) is en-
gaged (no band tension).
6. Check the circuit breakers/fuses for tripping or
burnout.
7. Push the motor starter overload reset buttons in
the electrical cabinet. If overload tripping occurs,
locate and correct the problem.
8. Check the control transformer for power.
9. Check the hydraulic motor and wiring.
10. Check the starter, relay coils and contacts for faulty
operation.
11. Have an electrical service person check the continu-
ity of the starting circuit.
MACHINE STARTS, BUT WON’T CONTINUE
RUNNING
1. The saw band is broken or too long and is tripping
the band broken proximity switch (1 PRS).
2. Check to see if the bandwheel doors are closed (the
band drive motor will not start unless both doors are
closed).
3. The saw head has not cleared the head up/down
proximity switch (2 PRS). Move the saw head up.
4. Check the JOB ENTRY screen. The machine will
not operate if the quanity(s) is set at "0", or if the
preselected number of cuts have been counted.
SAW BAND STALLS DURING A CUT
1. Decrease the feed rate setting.
2. Check for a worn or slipping band drive belt. The
belt must be dry and free of oil, grease and cutting
uid.
3. Check for proper saw band tension.
4. Check for proper operation of the band broken
proximity switch (1 PRS).
BLADE TOOTH GULLETS ARE LOADING
1. Check the positioning of the band brush. Replace
the brush, if necessary.
2. Increase the band speed setting, or decrease the
feed rate or feed force setting.
3. Check for improper coolant application.
4. Use a coarser pitch saw band.
SAW BAND SQUEAL
1. Faulty stock is being used: Check for heavy scale,
inclusions, hard spots, etc.
2. Incorrect band speed, feed rate or feed force setting
is being used.
3. Coolant is not being applied correctly.
SAW BAND VIBRATION
1. Check for a dull or damaged saw band.
2. Incorrect band speed, or feed force feed rate setting
is being used.
3. Check for incorrect saw band pitch.
4. Coolant mixture is weak, or incorrect coolant is be-
ing used.
5. Stockpiece is not being rmly clamped by the vise
jaws.
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