Avery Dennison 676 - Manual (Page 61)

Users Manual Model 676 Mechanical Trouble Shooting • •• • 61
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