Multiquip jwn24hscsl, jwn24htcsl operation manual Wiring?

			troubleshooting
	Troubleshooting (Ride-On mechanical Trowel) - continued
Symptom		possible problem	Solution
			Check all electrical connections in the lighting circuit.
		Wiring?	Verify wiring is in good condition with no shorts. Replace
			defective wiring or components immediately.
			If +12VDC is present at light fi xture connector when light
Lights (optional) not working.		Lights?	switch is activated and light does not turn on, replace
			light bulb.
		Bad switch?	Check the continuity of light switch. Replace light switch
			if defective.
		Bad fuse?	Check fuse. Replace fuse if defective.
		Retardant?	Check retardant level in tank. Fill tank as required.
			Check all electrical connections in the spray pump
		Wiring?	circuit. Verify wiring is in good condition with no shorts.
			Replace defective wiring or components immediately.
Retardant spray (optional) not working.		Bad switch?	Check the continuity of both left and right spray switches
			(palm handles). Replace spray switch if defective..
			If +12VDC is present at pump connector when spray
		Bad spray pump?	switch is activated and pump does not operate, replace
			spray pump.
		Bad fuse?	Check fuse. Replace fuse if defective.
		Blade speed out of adjustment?	See section on blade speed adjustment.
			Adjust the connecting linkage found at the base of the
Steering is unresponsive.		Steering linkage out of adjustment?	handle. Contact your MQ fi eld service manager for
			instructions.
		Worn components?	Check for wear of steering bearings and linkage
			components. Replace if necessary.
Operating position is uncomfortable.		Seat adjusted for operator?	Adjust seat with lever located on the front of the seat.
			If the motor runs and the pitch is not affected, parts
		Broken or loose parts?	inside the power head may be loose or broken. Return
			power head to dealer for service.
Power head on Electric Pitch (optional) not			Check all electrical connections and wiring. Check the
			continuity at the power head unit. Verify that there is
working.		Wiring?
			voltage present at the power head switch with the key
			switch in the “on” position.
		Switch?	Check the continuity of the switch. If switch is
			malfunctioning, replace immediately.
		Crank handles?	Make sure that both crank handles are pushed down as
Linkage on Twin Pitch not working.			far as possible to ensure that the linkage is engaged.
		Broken part?	Replace all broken parts immediately.
		Worn belts?	Replace belt.
		Clutch out of adjustment?	Adjust per instructions in maintenance section of this
			manual.
		Worn or defective clutch parts?	Replace parts as necessary.
Clutch slipping or sluggish response to engine
			Rotate input shaft by hand. If shaft rotates with diffi culty,
speed change.
		Worn bearings in gearbox?	check the input and output shaft bearings. Replace as
			necessary.
			Verify that the gearbox shaft rotates when the input shaft
		Worn or broken gears in gearbox?	is rotated. Replace both the worm and worm gear as a

page 42 — JWN-SERIES RIDE-ON POWER TROWEL • operation manual — rev. #1 (05/12/12)