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Users Manual Model 656/636 Mechanical Trouble Shooting • 57
Knife
Problem Probable Cause Corrective Action
Double Cuts, extra knife cycle 1) Solenoid sticking in 1) Check proper assembly of washers.
Clean plunger with alcohol and
completely dry.
2) Worn Trip Arm on Clutch
actuator.
2) Replace Actuator
3) Worn Stop roll pin on clutch 3) Replace Clutch if not solved above.
Skips cut, double length label 1) Solenoid did not pull in 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) Trip arm sticking on clutch roll
pin.
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) Low voltage to solenoid 3) Check power supply voltage for 12 and
24 volts
4) Weak solenoid driver 4) Substitute TCB. Change back if not
solved.
5) Bad Solenoid 5) Unusual, but replace Solenoid and
adjust.
Noisy Rattle when not cutting but
motor turning
1) Packman not visibly homing 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) Packman homing ok but noisy. 2) Adjust Packman to center the home
location of the packman to the quiet
location .
3) Dirty Clutch 3) Clean clutch and one drop of light oil.
4) Packman slipping 4) Order improved set screws with multiple
points that bite better to shaft.
5) Bad Motor Gear Box 5) Replace Knife Motor