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GEARBOX MAINTENANCE
Gearbox Disassembly
Remove the drain plug and drain the oil.
Remove the shaft key (7) on the drive shaft and gearbox cover bolts (6) from the rear cover (4).
Pull the cover off the drive shaft extension. If the cover stuck,
use a soft mallet carefully to loosen it. Heavy hitting by mallet
may be caused damage to the cover and dowel (15).
Remove the rear cover oil seal (11) from the rear cover if the
oil seal is needed to be replaced. Remove the paper gasket
from the cover or gearbox.
To replace the timing gears (14, 14-1) for drive & idle shaft
and power lock (181), straighten the locking tab of the
bearing lock washer at drive shaft.
Remove the lock nut (12-1) and lock nut washer (12) from the
drive shaft (8).
Release the setting wrench bolt and fasten jack bolts at power
lock (181) to remove power lock and pull out the gear on the
idle shaft (9).
See the detailed instruction of removal power lock in the
'APPENDIX'.
Fig. 18
Fig. 19
Fig. 20
14
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