Weichai America Corp.
9
2.2.5 Service Key point
1.
Disassembly: Use special tools to disassemble the camshaft bushing, pay attention to protect
the other bushing during disassembly;
2.
Assembly: Before assembly, carefully check the inner surface of the camshaft bush for
scratches, replace if necessary. Camshaft bushing oil hole alignment body camshaft bottom
hole oil hole.
3.
Assembly: clean the crankcase before assembly plane, the crankcase on the plane to be coated
sealant;
4.
Assembly: The main bearing bolts are symmetrically fastened in the order shown in Figure 2-3,
first tighten by pneumatic wrench, next tighten to the torque of 80Nm, then tighten to 140Nm,
after this tighten bolts in the specified sequence by 90°, last tighten by 60° to finish assembly.
Before assembly in the crankcase bearing surface and the main bearing bolt threaded parts
brushing clean lubricant;
Ⅰ
Ⅱ
Ⅲ
Ⅳ
Ⅴ
Ⅵ
Ⅶ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Figure 2-3 Main bearing bolt tightening order
2.3
Front cover disassembly and assembly
2.3.1 Exploded view of front cover
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
Document Courtesy of Fly Parts Guy Co.
www.FlyPartsGuy.com
