Sears 502493, 552493 manual Troubleshooting

TROUBLESHOOTING

PROBLEM	POSSIBLE CAUSE(S)		CORRECTIVE ACTION
Engine fails to start	1. Spark plug wire disconnected.		1.	Connect wire to spark plug.
	2.	Safety switch not contacted.	2.	Correctly install hose adapter nozzle.
	3.	Fuel tank empty, or stale fuel.	3.	Fill tank with clean, fresh fuel.
	4.	Fuel shut-off valve closed	4.	Open fuel shut-off valve.
		(if so equipped).
	5.	Faulty spark plug.	5.	Clean, adjust gap or replace.
Loss of power;	1. Spark plug wire loose		1.	Connect and tighten spark plug wire.
operation erratic.	2. Unit running on CHOKE.		2.	Move choke lever to OFF position.
	3.	Blocked fuel line or stale fuel.	3.	Clean fuel line; fill tank with clean
				fresh gasoline.
	4.	Water or dirt in fuel system.	4.	Disconnect fuel line at carburetor to drain
				fuel tank. Refill with fresh fuel.
	5.	Carburetor out of adjustment.	5.	Adjust carburetor.*
	6.	Dirty air cleaner.	6.	Service air cleaner.*
Engine overheats	1. Carburetor not adjusted		1.	Adjust carburetor.*
		properly.
	2.	Engine oil level low.	2.	Fill crankcase with proper oil.
Too much vibration		Loose parts or damaged		Stop engine immediately and disconnect
		impeller.		spark plug wire. Tighten all bolts and nuts.
				Make all necessary repairs. If vibration
				continues, have unit serviced by an
				authorized service dealer.
Unit does not	1. Discharge chute (elbow)		1.	Stop engine immediately and disconnect
discharge		clogged.		spark plug wire. Clean inside of housing
				and discharge chute (elbow).
	2.	Foreign object lodged in	2.	Stop engine immediately and disconnect
		impeller.		spark plug wire. Remove lodged object.
	3.	Chip-N-Vac cart is full.	3.	Empty cart.
Rate of discharge		Chipper blades dull.		Sharpen or replace chipper blades.
when chipping
slows considerably,
or composition of
discharged material
changes.

*Refer to the engine manual packed with your unit.

NOTE: For repairs beyond the minor adjustments listed above, please contact your nearest authorized service dealer.

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