Paxar 656 / 636 user manual Problem Probable Cause Corrective Action

Problem	Probable Cause	Corrective Action
Cracks or craze marks appear on face	1) Incorrect adjustment of decurler.	1) Move decurler turn-bar toward
of finished labels.		unwind end of machine until
		cracks no longer appear.
		NOTE: Stock-out switch rod may
		have to be readjusted after moving
		decurler.
Stock jams in bridge blade rollers or	1) Knife mounted bridge blade too	1) Loosen screws in upper knife
knife area.	close to stationary bridge blade.	securing bridge blade roller
		assembly and slide up (holes in
		blade are slotted) until rollers just
		contact stock. Tighten screws.

2)Knife not cutting full width of stock.

2)Loosen knife shear adjustment screws and move outer end of knife until full cut is accomplished.

3)Stacker not operating or nip rollers not turning.

3)Check stacker connection to access port. Be sure nip roller is free to rotate and moves easily in the bearing slots.

Will not stack.	1) Stacker not operating.	1) See step 3 above.
	2) Stacker position on machine too	2) Loosen stacker mounting knob
	far forward so labels go under rear	and move stacker toward rear of
	stacker rail.	machine - tighten.
	3) Incorrect rail position or stacker	3) Using a cut label, position stacker
	bed angle.	rails so that approximately 3/8"
		(9.5mm) overhangs the second
		grooved roller. Loosen quick-turn
		handle on stacker clamp and raise
		or lower stacker bed until opening
		between 1st label overhang and
		belt surface will allow entry of
		next label.
Knife will not cut or partial cut	1) Incorrect pre-load on clutch pawl.	1) With back cover removed and
		power off - operate solenoid by
		hand. When lever is moved, clutch
		pawl should move counter-
		clockwise about 1/32" (0.79mm)
		with the "pac-man" in home
		position. If not - loosen "pac-man"
		set screws and readjust "pac-man"
		to stop with spring in detent.
	2) Partial cut	2) Loosen shear adjustment screws
		and move outer end of knife until
		full cut is obtained.

54 • Mechanical Trouble Shooting Users Manual Model 656/636