Service Manual

Weichai America Corp.
Revision: August 2019 58
Fig. 11 - 2 Exploded view of flywheel and ring gear
11.2.2 Steps to disassemble flywheel and ring gear
Disassembling steps are contrary to assembling ones.
11.2.3 Steps to assemble flywheel and ring gear.
① Fix the flywheel ring gear on flywheel with bolts;
② Knock the pin into crankshaft rear end fully.
③ After inserting flywheel guide rod into crankshaft threaded hole, install flywheel and pre-
tighten the bolts diagonally.
Apply lubricating oil on bolt thread and bearing surface.
Flywheel bolts:
Bolt specification M16-12.9 (×6); Tightening torque: 285~295Nm; Test value: 285~340Nm.
11.2.4 Inspection and maintenance of flywheel and ring gear
① Check whether there is failure like thread damage on flywheel bolts.
② Check flywheel surface for conquassation.
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