WEICHAI WP6GNA - Disassembly and Assembly of Engine Oil Pump; Disassembly and Assembly of Engine Oil Filter

Weichai America Corp.
Revision: August 2019 51
10.5 Disassembly and Assembly of Engine Oil Pump
10.5.1 Exploded View of Engine Oil Pump
Fig. 10-5 Exploded view of engine oil pump
10.5.2 Steps to Disassemble Engine Oil Pump
Remove the two hexagon bolts and self-locking nut, take down engine oil pump, as shown in Fig.
10-5.
10.5.3 Steps to Assemble Engine Oil Pump
1) Check the pump before assembling, make sure there is no manufacturing defect and damage.
2) Clean up the fitting surface between oil pump and engine block.
3) Install engine oil pump.
4) Install and tighten the two toothed hexagon bolts and self-locking nut.
10.5.4 Inspection and Maintenance of Engine Oil Pump
1) Check the engine oil pump for crack damage, check whether its inner cavity is smooth, replace it
if necessary.
2) Check whether engine oil pump shaft can rotate smoothly, replace it if necessary.
10.6 Disassembly and Assembly of Engine Oil Filter
10.6.1 Exploded View of Engine Oil Filter
WEICHAI & PSI SERVICE MANUALS AVAILABLE ONLINE AT FLYPARTSGUY.COM
GET YOUR WEICHAI & AFTERMARKET SERVICE PARTS AT FLYPARTSGUY.COM