WEICHAI WD10 Service Manual - page 104
Service Manual for WD10 Diesel Engine
94
472 Disassembly, Inspection, Maintenance and Assembly of Fuel Injection
Pump
4721 Exploded View of Fuel Injection Pump
Fig. 4-57 Exploded view of fuel injection pump
4722 Steps to Disassemble Fuel Injection Pump
(1) Screw off the hexagon nuts that connecting fuel injection pump flange and gear housing;
(2) Disconnect fuel injection pump module and gear module from the engine;
(3) Remove fuel injection pump gear lock nut;
(4) Screw off the hexagon bolts that connecting fuel injection pump and the flange;
(5) Remove fuel injection pump flange.
4723 Inspection and Maintenance of Fuel Injection Pump
The structure of fuel injection pump is illustrated in Fig. 4-57. Rotate the flywheel until cylinder 1
reaches compression TDC, at this point the mark on injection pump gear should be aligned to mark
on injection pump flange.