Service Manual

Weichai America Corp.
Revision: August 2019 50
Fig. 10- 4 Exploded view of piston nozzle
10.4.2 Steps to disassemble piston nozzle.
① Remove the hexagon bolt (key point 1)
② Remove the piston nozzle (key point 2)
10.4.3 Steps to assemble piston nozzle
Assembling steps are contrary to disassembling ones.
10.4.4 Inspection and maintenance of piston nozzle.
Key point 1:
Assembling:
(1) Compress nozzle module tightly with bolt (with spring washer) and pressing plate;
(2) Place the pressing plate in nozzle end face groove.
(3) Bolts tightening
Key point 2:
Inspection: Check O-shape seal ring for damage; make sure the nozzle is clean and free of burr.
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