Weichai America Corp.
65
3
Hexagon bolt
11
Pressure and
temperature
sensor
19
Inner hexagon
screw
4
O-ring
12
Washer
20
Hexagon bolt
5
Washer
13
Pipe
21
Hexagon bolt
6
Wave spiral washer
14
Pipe joint
22
Hexagon bolt
7
Inner hexagon
screw
15
Decompression
valve
23
Hexagon bolt
8
Throttle
16
Clamp
24
Gasket
5.4.2 Pre-assembly Preparation
1.
Equipment condition: air wrench, sleeve
2.
Preparation: remove the peripheral parts of the exhaust manifold.
5.4.3 Disassembly steps of exhaust manifold
1.
Loosen the hexagon bolt of the pipe clamp, remove the bolt.
2.
Loosen the hexagon nut of the pipe joint, remove the pipe.
3.
Loosen the clamp of the connect hose of the air path.
4.
Loosen the hexagon bolt of the decompression valve, remove the decompression valve, gasket
and hexagon bolt.
5.
Loosen the inner hexagon screw of the throttle, remove the mix air gasket, throttle.
6.
Loosen the hexagon bolt and hexagon nut of the bracket, remove the bracket and mix air joint
pipe.
5.4.4 Assembly steps of exhaust manifold
Assemble the exhaust manifold with the reverse order of disassembly.
5.4.5 Inspection and repair of intermediate gear
1.
Check if there is crack, deformation or other damage on the mix air intake pipe, pipe joint and
joint hose of air path , if there is, it is necessary to replace it.
2.
Check is there is deformation, tear, deficiency or any other failure on the washer, if there is, it
is necessary to replace it.
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