Antunes, AJ VCT-25, VCT-20, VCT-50 owner manual Troubleshooting

VERTICAL CONTACT TOASTER

TROUBLESHOOTING (continued)

Problem	Possible Cause	Corrective Action
Platen is hot and conveyor belts	Toaster is installed incor-	Perform installation and operating proce-
do not move.	rectly.	dures (pages 7-8).
	Wiring problems.	Check all electrical connections for burns,
		discoloration or arcing. Replace all connec-
		tions or components with damaged terminals.
		Replace all damaged wiring with the same
		(or higher) rated wire.
	Drive motor inoperable or	To check drive motor:
	incorrect conveyor drive	1.Measure resistance of motor coil. Replace
	motor.
		motor if coil measures either open circuit
		or zero resistance.
		2.Mark the drive motor sprocket and count
		the turns per minute. Correct drive motor
		speed is nine (9) turns per minute for VCT-
		20; three (3) turns per minute for VCT-25;
		one (1) turn per minute for VCT-50.
	Broken drive chain or loose	Check drive chain for kinks, broken or bent
	sprocket.	links or other damage. Check motor sprocket
		and drive sprockets (on drive shaft); tighten
		setscrew on flat of shaft if required. Check
		for damaged/worn sprockets and replace as
		required.
	Heat shield. not installed.	Install heat shield.
	Conveyor belts installed	Install conveyor belt to match diagram in Fig.
	incorrectly.	8 (page 11). Be sure that ends of the hooks
		are facing down.
	Conveyor interlock switch	Install heat shield. correctly.
	not depressed.
	Spring tensioner assy. or	Replace spring tensioner assy(s). (29, page
	tensioner bent or missing.	22) or tensioners (4, page 24) if damaged or
		loose.
		Replace slide rails (40, page 24) if worn or
		missing.
	Conveyor belt too loose	Remove conveyor belt (page 11). Lay belt
	or missing links (41 links	flat and count links. Replace entire belt if
	required when new). When	links are damaged. If conveyor belt has too
	new, conveyor has 37 large	much play, it will jam. Adjust belt length as
	links and 4 small links.	described under Servicing Conveyor Belts
		(page 11).

14 P/N 1010729 Rev. C 05/04