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6-6 CHECK AND MAINTENANCE
(1) DIFFERENTIAL GEAR AND PINION SHAFT
1. Checking the gear contact pattern
1) Clean the contact area of gear thoroughly
and coat with Prussian blue or red lead.
2) Rotate ring gear more than 2/3 turn to check
the gear contact pattern. If contact pattern is
abnormal, adjust the pinion shaft setting by
shim with following the chart below.
2. Check the backlash of differential ring gears.
Backlash ;
Standard value : [0.004~0.008 in.]
Service limit : [0.012 in.]
Replace the gear if backlash is out of service
limit.
3. Check the clearance between shift fork and
shifter.
Clearance ;
Standard value : [0.008~0.023 in.]
Service limit : [0.039 in.]
Replace the fork or shifter if the clearance is
out of service limit.
4. Check the synchromesh gear
1) Check the abrasion or flaw at mating surface
of synchronizer ring, hub and sleeve.
2) Check the decay of spring and abrasion of
piece.
Diffrential ring gear
Shift fork
Shifter groove
Pinion shaft
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