Service Manual

Weichai America Corp.
Revision: August 2019 55
Fig. 10-9 Exploded view of deputy oil pressure limiting valve
10.9.2 Steps to Disassemble Deputy Oil Pressure Limiting Valve
Screw off and take down deputy oil pressure limiting valve, as shown in Fig. 10-9.
10.9.3 Steps to Assemble Deputy Oil Pressure Limiting Valve
1) Check the valve before assembling, make sure there is no manufacturing defect and damage
2) Clean up the pressure limiting valve and pressure limiting valve fitting hole on the module.
3) Install the valve and tighten it.
10.9.4 Inspection and Maintenance of Deputy Oil Pressure Limiting Valve
1) Check service condition of the valve spring, replace the spring if necessary.
2) Check the valve for crack damage, replace it if necessary.
11 Crank-rod mechanism
11.1 Assembly and disassembly of flywheel housing
11.1.1 Exploded view of flywheel housing
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