WEICHAI WD10 Service Manual - page 154
Service Manual for WD10 Diesel Engine
144
Troubleshooting:
1) Check relief valve module when unloading intake, clean the jammed valve or replace valid
parts. Check unloading valve module when unloading exhaust, clean the jammed/blocked valve
or replace valid parts.
2) Check brake system, replace unserviceable parts.
3) Poor lubrication between piston and cylinder sleeve, undersized clearance or scuffing will
result in overheat, check and repair or replace unserviceable parts.
41144 Steps to Assemble Air Compressor
(1) Place the O-shape seal ring in compressor ring groove. Make sure compressor main axis is
perpendicular to engine timing gear housing fitting surface, and push the compressor into the
mounting hole gently, ensure the helical gears are normally engaged and air compressor flange
face should be parallel with engine fitting surface, loose-fit the compressor with three M10
hexagon toothed bolts, and tighten the bolts with 13mm open end wrench (or double offset ring
spanner) to 44~58Nm.
Hexagon
flange
bearing
surface
toothed bolt
Air
compressor
O-shape seal ring
Fig. 4-89 Assembly of air compressor
(2) Install air compressor water inlet pipe, water outlet pipe, oil inlet pipe and intake pipe, fix the
pipes with clamps.