Lincoln 3270-2 bearings. Replace bearings as needed, Oven will not heat, Gas supply, damage

		bearings. Replace bearings as needed.
Oven will not heat	Gas supply	Check for adequate gas supply to oven.
	Manual gas shut off valve	Check to see that the manual gas shut off valve is
		open. Also, check flexible gas line connection for any
		damage.
	Main fan motor	Check for main fan operation. If it is not operating, refer
		to “Oven fan will not run”.
	Relay, main fan	Check for 120VAC supplied to relay terminal #13. If
		voltage is not present, trace wiring back to power
		supply. If voltage is present, check for 120VAC at
		terminal #14. If there is no voltage at terminal #14, and
		the relay is energized, replace the main fan relay.
	Fuse, 2 Amp, control (F8)	Check, replace if necessary.
	Fuse holder	Check, replace if necessary.
	Switch, oven fan	Check for 120VAC to the switch, if no voltage is
		present, trace wiring back to the main fan relay. Check
		continuity between switch terminals. Replace switch as
		needed.
	Switch, burner	Check for 120VAC to the switch, if no voltage is
		present, trace wiring back to the oven fan switch.
		Check continuity between switch terminals. Replace
		switch as needed.
	Air pressure switch	Check for 120VAC to the air pressure switch. If no
		voltage is present, trace wiring back to burner switch.
		This normally open switch should close when the main
		fan is activated. Check air switch tube for blockage or
		any obstructions, repair as needed. Refer to the
		“Removal and installation” section for proper
		adjustment of air pressure switch. Replace air pressure
		switch as needed.
	Transformer, burner	Check for 120VAC supplied to primary of transformer. If
		no voltage is present, trace wiring back to the air
		pressure switch. If voltage is present, check for 24VAC
		at transformer secondary. If there is primary voltage but
		no secondary voltage, replace burner transformer.
	Relay, burner blower	Check for 24VAC supply to relay coil. If no voltage is
		present, trace wiring back to burner transformer. Check
		for 120VAC to relay contact. If no voltage is present,
		trace wiring back to air pressure switch. When 24VAC
		is applied to the coil, there will be a delay of 20 – 30
		seconds. After this time delay, the relay contacts
		should close. If there is 24VAC applied, but the
		contacts do not close, replace the burner blower relay.
	Motor, burner blower	Check for 120VAC supplied to the burner blower motor.
		If no voltage is present, trace wiring back to the burner
		blower relay. If voltage is present, and the motor is not
		turning, check for opens, shorts or grounds.
		WITH POWER OFF: Check for locked rotor.
		Replace burner blower motor as needed.
	Centrifugal switch of	Check for 24VAC supplied to centrifugal switch at wire
	Burner blower motor	S5. If no voltage is present, trace wiring back to the
		burner transformer. If voltage is present, check for
		24VAC out of centrifugal switch at wire #32. If there is
		voltage in, but there is no voltage out, and the burner
		blower motor is running, replace the burner blower
		motor.
	Burner control	Check for 24VAC supplied to the burner control at
		terminals #5 and #6. If no voltage is present, trace
Impinger X2 – Analog Service Manual – Dom & Int’l		7