Paxar 656 / 636 user manual Knife, Problem Probable Cause Corrective Action

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	2) Replace Actuator
		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 1) Packman not visibly homing		1)	Adjust Packman to center the home
motor turning			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

Users Manual Model 656/636 Mechanical Trouble Shooting • 57