Lincoln 3270-2 Repair or replace conveyor components as needed, Conveyor speed varying or, supply

		assembly. Check for damaged or torn belting. Check
		conveyor shaft bearings for damage or excessive wear.
		Repair or replace conveyor components as needed.
Conveyor speed varying or	Power supply	Check for a steady 120VAC supply to the conveyor
intermittent		control. If voltage is not steady, trace back to power
		supply.
	Control, conveyor	Check for a steady DC voltage output at terminals A+
		and A-. If voltage is not steady, proceed. Check for
		5 VDC output from the conveyor control at terminals
		+5V(red) and COM (black). If there is no voltage output,
		replace the conveyor control. If there is DC output,
		proceed.
	Motor, conveyor	Check conveyor motor and gearbox for any visible
		damage. If there is apparent damage, repair or replace
		conveyor motor. Check motor brushes for excessive or
		abnormal wear. Replace motor brushes as needed.
	Hall effect sensor/magnet	Check to be sure that the Hall effect sensor and
		magnet are mounted on the motor. Check for any
		visible damage to the Hall effect sensor and magnet. If
		there is visible damage, repair or replace as needed. If
		there is no visible damage, check for a frequency
		output from the hall effect sensor at terminals SIG
		(white) and COM (black).
		Readings should be as follows:
		2:15 cook time	56 Hz. approx.
		5:00	25 Hz. approx.
		10:00	13 Hz. approx.
		16:00	8 Hz. approx.
		If these readings are not achieved, replace the Hall
		effect sensor/magnet

10 Impinger X2 – Analog Service Manual – Dom & Int’l