SECTION
2:
Transmission
Troubleshooting
Wheels and/or Tines
Do
Not Turn
PTO
HORSE
MODEL
TECHNICAL
MANUAL
Page
2·3
4/90
Symptom
Wheels and tines
won't turn even though
Wheels/Tines/PTO Lever
seems to work properly.
Tines turn but the wheels
do
not turn or turn only
in one speed.
The
Wheel
Speed Lever moves the
clutch into either gear.
Remedy
• Inspect the drive belt for wear
or
mis-adjustment. See the
Owner/Operator
Manual
for instructions.
• Check condition and adjustment
of
reverse disc. See the
Owner/Operator
Manual
for instructions.
• Inspect the
mounting
bolt on the transmission drive pulley. It may be loose
or
missing, which would allow the key in the pulley to
fallout.
If so, the drive belt
or
reverse disc will turn the pulley but the pulley will not turn the power
unit
drive
shaft. Tighten the bolt (with the concave washer in place) securely.
• Check for play in the power
unit
drive shaft. If there is play in the drive shaft, find
out
why. It could be a loose bearing cap, improper shimming, damaged bearings
or
worn worms.
• If the transmission is new
or
rebuilt, the key on the transmission engine pulley may
not have been installed. If so, the pulley cannot transfer power to the drive shaft.
• If the transmission is new
or
rebuilt, the internal keys in the pinion assembly may
not have been installed. If so, the pinion gears will not drive the wheel speed gears.
• Inspect the
hi-pro
key that lets the clutch turn the wheel shaft. It may be missing
or
broken.
• Inspect the lugs on each side
of
the clutch; they may be worn.
• Inspect the fast and slow speed wheel gears. One
or
both may be worn.
• Inspect the fast and slow speed pinion gears. One
or
both may be worn.
• Inspect the power unit drive shaft worm. It may
be
worn and not meshing with the
bronze worm gear on the pinion shaft assembly.
• Inspect the bronze
worm
gear on the pinion shaft assembly. It may be worn and
not
meshing with the power unit drive shaft worm.
• If the transmission is new
or
rebuilt, the key that holds the bronze
worm
gear to the
fast speed pinion gear may not have been installed. This means the bronze worm
gear will turn but it will not turn the pinion gear.
• If the wheels only turn in the fast wheel speed and if the transmission is new
or
rebuilt, the key may
be
missing from the stem pinion gear, preventing the trans-
mission from operating in slow gear. The key locks the stem pinion to the fast
speed pinion gear.
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