Weichai America Corp.
Revision: August 2019 59
③ Check whether flywheel ring gear is damaged.
11.3 Assembly and disassembly of front oil seal and rear oil seal
11.3.1 Exploded view of front oil seal and rear oil seal.
Fig. 11- 3 exploded view of front oil seal and rear oil seal
11.3.2 Steps to disassemble front and rear oil seal
1）Remove gear housing plate
2）Remove engine front oil seal
3）Remove engine rear oil seal cover (Key point 1)
4）Remove engine rear oil seal (key point 2)
11.3.3 Steps to assemble front and rear oil seal
Assembling steps are contrary to disassembling ones.
11.3.4 Inspection and maintenance of engine front and rear oil seal.
Key point 1:
Inspection
Check whether the junction surface between rear oil seal cover and engine body is cleaning or
knocking wound.
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