Knife - Paxar 676 User Manual

Knife

Problem
Double Cuts, extra knife
cycle
Skips cut, double length
label
Noisy Rattle when not
cutting but motor
turning
58 • Mechanical Trouble Shooting
Probable Cause
1) Solenoid sticking in
2) Worn Trip Arm on Clutch
actuator.
3) Worn Stop roll pin on clutch
1) Solenoid did not pull in
2) Trip arm sticking on clutch roll
pin.
3) Low voltage to solenoid
4) Weak solenoid driver
5) Bad Solenoid
1) Packman not visibly homing
2) Packman homing ok but noisy.
3) Dirty Clutch
4) Packman slipping
5) Bad Motor Gear Box
Corrective Action
1) Check proper assembly of washers. Clean
plunger with alcohol and completely dry.
2) Replace Actuator
3) Replace Clutch if not solved above.
1) Check gap on the trip arm to clutch body must
be about .040 inches. If too large, solenoid has
less force. Check assembly of spring and
washers. Use latest engineering assembly
procedure. Clean Solenoid.
2) Check for burr on trip arm catching on clutch
stop roll pin. File off burr on clutch roll pin
and/or replace trip arm.
3) Check power supply voltage for 12 and 24 volts
4) Substitute TCB. Change back if not solved.
5) Unusual, but replace Solenoid and adjust.
1) Adjust Packman to center the home location of
the packman to the quiet location. If the knife
still does not home, clean knife cams and
lubricate.
If still does not home, replace blades. If still does
not home, replace clutch.
2) Adjust Packman to center the home location of
the packman to the quiet location .
3) Clean clutch and one drop of light oil.
4) Order improved set screws with multiple points
that bite better to shaft.
5) Replace Knife Motor