Cub Cadet 8454 - Manual (Page 108)

CHAPTER 4 8454
4-4 D569-W02 May-2003
1.3 TROUBLESHOOTING FOR AUXILIARY AND CREEP SHIFTS IN OPERATION ERROR
1.4 TROUBLESHOOTING FOR REAR DIFFERENTIAL GEAR IN OPERATION ERROR
1.5 TROUBLESHOOTING FOR REAR DIFFERENTIAL IN OPERATION ERROR
Gear shift disconnected
Starting gets OFF when
starting with gear shifted
Difficult to shift the
auxiliary and creep
shift gears (if equipped)
Symptom
1. Damaged jaw at chamfering section of auxiliary
shift gear
2. Deficient traveling distance due to interference
with the exterior lever auxiliary shift: 10 mm, creep
shift (if equipped): 10.5 mm
3. Unfixed ball and spring at the side of transmis-
sion case
1. Double gear activated due to unfixed steel ball to
prevent double which is engaged between creep
(if equipped) and auxiliary shift fork rods
2. Impossible drive due to little engagement with
gear of auxiliary shift section
1. Deficient operation due to interference with the
exterior lever
2. Damaged jaw at chamfering section of auxiliary
shift gear
3. Inclined when shifted due to transformation of
auxiliary shift fork
Provable Causes
Replace
Correct interference
Adjust
Assemble
Replace
Remove the cause
Replace
Replace
Solution
Loose rear differential
pedal
Impossible returning of
differential pedal
Noise in rear differential
section, Differential
pedal lock incapable
Symptom
1. Unfixed mounting spring
2. Unfixed head pin which is assembled at differen-
tial mounting fork
1. Unfixed mounting spring
2. Differential mounting fork held
3. Differential fork rod held by transmission case
1. Damaged pin at differential mounting shift
section
2. Improper adjustment of backlash in spiral bevel
gear and pinion gear
3. Damaged brim of spiral bevel gear and pinion
gear
4. Damaged differential pinion shaft, damaged
differential bevel gear
Provable Causes
Assemble
Assemble
Assemble
Replace
Replace
Replace
Adjust
Replace
Replace
Solution
Noise in rear axle
Oil leakage in rear axle
Symptom
1. Damages on 13 gear shaft, 68 internal gear or 27
planetary gear
2. Deflection in 13 gear shaft and planetary gear
support due to unfixed mounting plate
1. Damaged O-ring of brake case and rear axle
case assembly section
2. Damaged O-ring of rear axle bearing cover
section
3. Damaged oil seal of rear axle bearing cover
Provable Causes
Replace
Assemble
Replace
Replace
Replace
Solution