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Form No F082206A
23
Part No 840099
MV650SPH Self-Propelled Vacuum Owner’s Manual
W
IRING
D
IAGRAMS
Bag Switch Circuit Schematic Diagram
TROUBLESHOOTING
Problem
Possible Cause
Solution
Will not vacuum or has poor vacuum
performance.
· Dirty or full debris bag or filter.
· Clean debris bag and filter. Shake bag clean or
wash.
· Nozzle height set too high or too low.
· Adjust nozzle height (see page 14).
· Hose kit cap missing.
· Check for hose kit cap.
· Clogged nozzle or exhaust.
· Unclog nozzle or exhaust (see page 5)
· Excessive quantity of debris.
· Allow air to feed with debris.
Abnormal vibration.
· Loose or out of balance impeller.
· Check impeller and replace if required.
· Loose engine.
· Check engine.
Engine will not start.
· Throttle in off position.
· Check throttle control (see page 13).
· Engine not in full choke position.
· Check throttle, choke position (see page 13).
· Out of gasoline or bad, old gasoline.
· Check gasoline.
· Spark Plug wire disconnected.
· Connect spark plug wire.
· Gas valve off.
· Turn on gas valve.
· Dirty air cleaner.
· Clean or replace air cleaner. Contact a qualified
service person.
· Safety Interlock disengaged on bag plate.
· Latch the bag properly or check the bag rod to
see if it is bent.
Engine is locked, will not pull over.
· Impeller plugged or clogged.
· Remove debris (see page 16).
· Engine problem.
· Contact an engine servicing dealer for engine
problems.
No self-propelling
· Drive clutch not engaged
· Engage the drive clutch lever.
· Transmission not in gear.
· Check transmission shift control (see page 16).
· Drive belt worn or broken
· Check the drive belt.
· Drive clutch cable out of adjustment or broken. · Check the drive clutch cable (see page 20).
· Spring tension too loose
· Check spring legnth (see page 20).
· Drive chain off the sprocket.
· Check the drive chain (see page 22).
Self propelled drive will not release
· Improper drive clutch cable adjustment or
cable is kinked.
· Check the drive clutch cable (see page 20).
Noisy or broken chain
· No chain lubrication.
· Lubricate chain.
· Chain misalignment or tension.
· Check the drive chain (see page 22).