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Troubleshooting
Problem
Abnormal vibration.
Will not vacuum or has poor
vacuum performance
Engine will not start.
Engine is locked, will not pull
over.
Part No 812379
DL12/13/14/18 Owner's Manual
Possible Cause
Loose or out of balance impeller or
loose engine
· Nozzle buried in debris. Clogged
hose or exhaust. Excessive quantity of
debris.
· Throttle & / or stop switch in off
position. Out of gasoline. Bad or old
gasoline. Spark plug wire
disconnected. Harness wire is bad or
disconnected from interlock switch.
Hose not installed, allowing interlock
wire to ground. Dirty air cleaner.
· Debris locked against impeller.
Engine problem.
Check impeller and replace if necessary.
Check engine.
· Withdraw nozzle from debris pile.
Unclog hose or exhaust (see pg. 11)
Allow air to feed debris.
· Check stop switches, throttle, and
gasoline. Connect spark plug wire. Clean
or replace air cleaner. Install hose
coupler securely to the unit and check
whether interlock switch is engaged by
lever. Check harness wire connection
and replace if necessary.
· See pg.11, Clearing a clogged impeller
housing. Contact an engine servicing
dealer for engine problems.
9
Solution
Form No F060711B
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