Multiquip WM120SM, WM120PM manual WM-120P/S -TROUBLESHOOTING Engine

Page 20

WM-120P/S —TROUBLESHOOTING (ENGINE)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the

diagnosis based on the Engine Troubleshooting (Table 3) information shown below and on the proceeding page. If the problem cannot be remedied, please leave the unit just as it is and consult our company's business office or service

TABLE 3. ENGINE TROUBLESHOOTING

	SYMPTOM	POSSIBLE PROBLEM	SOLUTION

		Inspect carburetor to see if fuel	Check fuel line
		is reaching it?

		No Fuel?	Add Fuel

		Water in fuel tank?	Flush or replace fuel tank.

		Fuel filter clogged?	Replace fuel filter

		Stuck carburetor?	Check float mechanism.
	Poor starting
	Poor starting	Spark plug is red?	Spark plug is fouled. Check tranistor ignition unit.

		Spark plug is blue-white?	Insufficient compression, injected air leaking. Carburetor jets are
		Spark plug is blue-white?	clogged (overflow).
			clogged (overflow).

		No spark present at tip of spark	Tranistor ignition unit broken, high voltage cord cracked or broken.
		plug?	Start/Stop switch broken. Replace spark plug if fouled.

		No oil?	Add oil as required.

		Oil pressure alarm lamp blinks	Check Automatic shutdown circuit "oil sensor".
		upon starting?	Check Automatic shutdown circuit "oil sensor".
		upon starting?

		Engine will not turn over?	Replace cylinder and piston and if necessary axel joint.

		Cylinder head connecting bolts	Tighten cylinder head connecting bolts.
		loose?	Tighten cylinder head connecting bolts.
		loose?

	Insufficient power output "no	Cylinder head gasket damaged?	Replace cylinder head gasket.
	compression"
	compression"	Malfunction of valve seat?	Re-seat valves.
		Malfunction of valve seat?	Re-seat valves.

		Spark plug is loose?	Replace spark plug.

		Worn piston rings?	Replace piston rings.

		Malfunction in air-cleaner	Clean or replace air filter.
		system, air filter clogged?	Clean or replace air filter.
		system, air filter clogged?

		Air leaking in from interface	Tighten bolts between carburetor and cylinder head. Replace
	Insufficient power output	between carburetor and cylinder	cylinder head gasket.
	"compression"	head?

			Clean or replace fuel filter.
		Malfunction in fuel system?	Clean or replace carburetor.
			Check carburetor float.

PAGE 20 — WM120PM/SM— OPERATION AND PARTS MANUAL — REV. #7 (09/15/11)

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Contents WM120PM Series Proposition 65WARNING SILICOSIS/RESPIRATORYWARNINGS Engines Parts Ordering Procedures Ordering parts has never been easierSafety Instructions Operation and Safety DecalsGeneral Safety Rules for Safe OperationRules for Safe Operation EmergenciesWM120P/S Specifications WM120PM WM120SMWM120P/S General Information WM-120P/S Controls MixerElectric Motor Connection WM-120P/S Electric MotorElectric Motor WM-120P/S Towing StepWM-120P/S Paddle Blade Adjustment Paddle Blade Adjustment, Polyethylene DrumWM-120P/S Paddle Blade Adjustment WM-120P/S Initial START-UP Starting the Electric Motor WM-120P/S Initial START-UPMixing WM-120P/S Maintenance WM-120P/S Maintenance Clutch Adjustment Mechanical 12 CF MixerWM-120P/S -TROUBLESHOOTING Engine Engine Troubleshooting Symptom Possible Problem SolutionWM-120P/S -TROUBLESHOOTING ENGINE/MIXER WM-120P/S- Explanation of Code in Remarks Column Xxxxx only Not Used onWM-120P/S- Suggested Spare Parts WM-120PS 1 to 3 Units WM-120PS 5 to 10 UnitsWM-120P/S Engine Side Paddle Assy Paddle ARM Engine Side Paddle ARM Center Engine SideFlat Washer 5/16 END BACK-UP BladeWM-120P/S -TOW Side Paddle Assy Paddle ARM Center TOW Side Center Paddle U-BOLTLocl Washer 1/2 Included in Blade KitsWM-120P/S Paddle Shaft Assy Seal Bearing 1-1/2 ID RING, SnapSPACER, Snap Ring BEARING, BallWM-120P/S Polyethylene Drum Assy WASHER, FLAT, 3/8 SAE CAP, Grease ZerkWASHER, FLAT, 1/2 USS GRATE, 120 Stationary W/AWM-120P/S Steel Drum Assy TUB, Steel SHIM, Bearing BrktDump Lever BAR, Grill OpeningWM-120P/S CAB Assy CAB DOOR, Complete Assy WM-120P/S FRAME,WHEEL,TIRE and HUB Assy Safety Chain Assy Transmission Support BARFlat Washer 1/2 Frame W/AWM-120P/S Name Plate and Decals DCLWM120PS KIT, Decal Includes Items W Decal CautionPLATE, Serial no WM-120P/S -WISCONSIN Engine Assy Kill Switch Engine Kill Ground WireEnginekill Wire Connecting LinkWM-120P/S Honda Engine Assy Engine Kill Wire Wire Splice11HP Honda Engine Engine ShimWM-120P/S Electric Motor Assy HP 1 Phase Elect Motor HP 3 Phase Elect MotorMotor Starter 1 Phase Motor Starter 3 PhaseWM-120P/S -TRANSMISSION Assy Main Transmission Housing Shifter ShaftClutch Yoke Lock Washer 1/4Terms and Conditions of Sale Parts WM120PM/SM Operation and Parts Manual REV. #7 09/15/11 HERE’S HOW to GET Help