Husqvarna Rider ProFlex 18 Workshop Manual page 92

Drive belt slips
Key/keys missing or damaged
Machine runs slowly, lacks
power or no drive at all
Hydrostatic transmission
Hydrostatic transmission
No machine drive in either
direction
Brakes applied
The hydrostatic transmission must not be opened during the warranty period.
Drive belt worn or covered in oil
and dirt
Drive belt's adjuster pulley
defective
Engine shaft's pulley
Wheel hub, axle
Spline on input axle in the
transverse axle damaged
Input shaft does not drive the
hydraulic pump
Defective pump components or
differential parts
Blocked oil filter
Low oil level in the hydrostatic
transmission or tank
Lever for "bypass valve" partly
extended
Defective accelerator
Key on transverse axle broken
Damage inside transverse axle
Brakes incorrectly adjusted or
seized.
Clean or replace the drive belt
Broken spring. Replace
Lever jams. Lubricate
Replace the key. Inspect the axle
and pulley for damage
Replace the key. Inspect the axle
and pulley for damage
Repair or replace the transverse
axle
Repair or replace the transverse
axle
Repair or replace the transverse
axle
Clean or replace the oil filter
Fill engine oil SAE 10W/30 to
correct level
Move to lever to the drive position
Tubular pin in regulating axle
sheared off. Replace
Control incorrectly adjusted or
damaged. Replace and adjust
Replace the key
Repair or replace the transverse
axle
Lubricate the brake links. Adjust