Weichai America Corp.
48
6)
After correctly installed the gears, mark 0 tick position of camshaft timing gear and crankshaft
timing gear with a marking pen.
7)
After adjusting the holes, install camshaft bolts (cleaned and applied with KB277 sealant)
through flanges holes; pre-tighten camshaft timing gear fixing bolts with pneumatic impact
wrench, and pre-tighten connecting bolts between camshaft timing gear and fuel injection pump
driven gear. Tighten the bolts with torque spanner, tightening torque for M10 bolts: 85~90Nm,
tightening torque for M8 bolts: 55~60.5Nm, seal up the bolts with lacquer after tightening
4.2.4
Inspection and maintenance of camshaft
1)
Check whether there is wear trace on cam face that contacting tappet, check main journal for
seizure and abrasion.
2)
Check whether timing gear and hexagon bolts are distorted.
4.3
Intermediate gear assembly and disassembly
4.3.1
Exploded view of intermediate gear
Pos.
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Pos.
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Pos.
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