Weichai America Corp.
Revision: August 2019 60
Assembling
1) Clean the junction surface and install 2 pins into engine body.
2) Apply sealant on the junction surface of rear oil seal cover.
3) Apply oil on surface of crankshaft flange, assemble rear oil seal and tighten bolt. Bolt
tightening sequence is: 1-2-6-7-3-4-5-8-9-10ć
Fig. 11- 4 tightening sequence of rear oil seal cover bolt
Key point 2:
Inspection:
Oil seals and seal rings should be checked before assembling, make sure there is no damage. Check
whether rear oil seal cover is clean and whether its finished surface is free of obvious scratch.
Assembling
Apply sealant on the rear oil seal outer ring first, and then press-in the seal slowly with dedicated tool.
NOTICE: Do not damage the seal during assembling, and seal outer ring should be parallel and level to
oil seal cap plane.
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