Troubleshooting - Husqvarna W436 Operator's Manual

Problem
Engine will not start
Unit will not move or mow
with engine running
Changes in the sound or
vibrations of the unit
Unit does not straighten
immediately when the
steering levers are released
Erratic movement of cylinder
Unit loses power

TROUBLESHOOTING

Probable Cause
Safety Interlock System is
preventing start
Fuel tank empty or fuel is
contaminated
Air cleaner is clogged or
damaged.
Safety Interlock System out
of adjustment or defective.
Dirty or faulty spark plug
Transmission belt or mower
belt is broken, worn, or off the
pulleys.
Loose or missing fasteners
Mower blade problem
Worn or damaged clutch
Steering levers out of
adjustment
Air in hydraulic system
Binding in the steering or
brake linkage
Steering levers out of
adjustment
Worn or damaged traction
belts
Traction belt slipping
Transmission shaft pulley
worn
- 27 -
Correction
Make sure the shift lever is
in neutral, the ignition key is
in the ON position, and the
Power Take Off is OFF
Add fuel or replace with
clean, fresh fuel
Clean or replace the filter
element see engine manual
See dealer for repairs
See engine manual
Check belts for wear, damage
and correct position on
pulleys. Replace belts if worn
or damaged. See Replacing
Transmission Belt
Check all the fasteners.
Tighten or replace as
necessary.
Check blades for wear or
damage. See Mower Blades
See dealer for repairs
See Adjusting Steering
Levers
Purge air from hydraulic
system
Check linkage for debris or
damage. Repair if necessary.
See Adjusting Brakes or
dealer for repairs
See Adjusting Steering
Levers
Check belts for wear
or damage. Replace if
necessary. See Replacing
Traction Belts
Move the traction belt idler
spring anchor to the rear
most position. See Replacing
Traction Belts
Check pulley for excessive
wear, replace if necessary.
See your Dealer for repairs