Weichai America Corp.
20
2.7.2
Steps to disassemble flywheel housing
1)
Remove fixing bolts of flywheel housing adapter and take out the adapter.
2)
Remove speed sensor
3)
Remove fixing bolts of monitoring window cap on flywheel housing, take out the cap;
4)
Remove flywheel housing (key point 1).
2.7.3
Steps to assemble flywheel housing
Reverse disassembly procedure to assemble flywheel housing.
2.7.4
Flywheel housing inspection and repair
Key point 1:
Assembly
Check whether flywheel is cleaned up. Debur the corresponding fitting surface on engine block with
240# fine oil stone and clean the surface with ethyl alcohol. Apply sealant on fitting surfaces of
flywheel housing and engine block. Bolts and tools: M10-10.9 hexagon bolts (×12), M12-10.9 hexagon
bolts (×6), 17mm and 19mm socket spanner.
Step 1: Preassemble the bolts
Step 2: Follow the sequence of arrow to tighten the M10 bolts, tighten torque for M10 bolts is
80~85Nm. And then tighten the M12 bolts according to the marked order 1-2-3-4-5-6, tighten torque
for M12 bolts is 140~145Nm.
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