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Part No 812379 Form No F060711B
9
DL12/13/14/18 Owner’s Manual
Troubleshooting
Problem Possible Cause Solution
Abnormal vibration. Loose or out of balance impeller or
loose engine
Check impeller and replace if necessary.
Check engine.
Will not vacuum or has poor
vacuum performance
· Nozzle buried in debris. Clogged
hose or exhaust. Excessive quantity of
debris.
· Withdraw nozzle from debris pile.
Unclog hose or exhaust (see pg. 11)
Allow air to feed debris.
Engine will not start. · 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.
· 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.
Engine is locked, will not pull
over.
· Debris locked against impeller.
Engine problem.
· See pg.11, Clearing a clogged impeller
housing. Contact an engine servicing
dealer for engine problems.