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PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Engine fails to start 1. Spark plug wire disconnected. 1. Connect wire to spark plug.
2. Safe_ 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.
operation erratic. 2. Unit running on CHOKE. 2.
3. Blocked fuel line or stale fuel. 3.
Engine overheats
Too much vibration
Unit does not
discharge
Rate of discharge
when chipping
slowsconsiderably,
or compositionof
discharged matedal
changes.
4. Water ordirt in fuel system.
5. Carburetor out of adjustment.
6. Dirty air cleaner.
1. Carburetor not adjusted
properly.
2. Engine oil level low.
Looseparts or damaged
impeller.
1. Discharge chute (elbow)
clogged.
2. Foreign object lodged in
impeller.
3. Mow-N-Vac cart is full.
Chipper blades dull.
4.
5.
6.
Connect and tighten spark plug wire.
Move choke lever to OFF position.
Cleanfuel line; fill tank with clean
fresh gasoline.
Disconnect fuel line at carburetor to drain
fuel tank. Refill with fresh fuel
Adjust carburetor.*
Service air cleaner.*
1. Adjust carburetor.*
2. Fill crankcase with proper oil.
Stop engine immediately and disconnect
spark plug wire.Tighten all bolts and nuts.
Make all necessary repairs. Lfvibration
continues, have unit servicedby an
authorized servicedealer.
1. Stop engineimmediately and disconnect
spark plug wire. Clean inside of housing
and discharge chute (elbow).
2. Stop engine immediately and disconnect
spark plug wire. Remove lodgedobject.
3. Empty cart.
Sharpen or replace chipper blades.
*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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