WEICHAI WP13C450-18, Operation And Maintenance Manual

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Operation and Maintenance Manual of WP13C Series Diesel Engines
Weichai Power Pursuit of Excellence
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10 Curved or broken push rod Replace
11 Piston ring broken or worn Inspect and replace the damaged parts
12 Bearing is greatly worn Inspect and replace the bearing
13 Too large gap between crankshaft thrust bushings Change the thrust shoes
14 Main bushings are not concentric Inspect and repair
15
Main shafts of driven parts of crankshaft
are not concentric
Inspect the bolts of mounting bracket , and repair
16 Parts are greatly worn and require overhaul Inspect the parts and determine if repair or not
17 Supercharger surge Remove blockage in the channel and repair
18 Supercharger sealing ring damaged Replace the assembly
19
Supercharger bearing damaged or the rotating
part contacts with fixing part
Replace the assembly
20
Foreign matter comes into the turbine of supercharger
or impeller of compressor
Repair or replace
13. Starter motor fails.
Reason How to remove
1 Undercharged battery Inspect, charge and replace the battery
2 Poor wire connection Inspect and tighten the terminal
3 Fuse broken Replace the fuse
4 Electric brush poor contact Clean the brush o replace it with a new one
5 Starter short circuit Contact to motor or replace the assembly
14. Powerless starter motor
Reason How to remove
1 Undercharged battery Inspect, charge and replace the battery
2 Bearing bushing worn Replace the assembly
3 Battery undercharged Inspect, charge and replace the battery
4 Dirty or burnt commutator
Remove the oil and polish with sand paper, or replace the
assembly
5
Wire end id out of welding Re-weld
6
Poor contact of switch Inspect and repair the switch
15. Generator does not work
Reason How to remove
1 Open or shorted circuit; joint loosed Repair
2 Part shorted, open or ground circuit of rotor and coil Repair or replace the assembly
3 Rectifier tube damaged Replace the assembly
4
paper insulation is damaged and the
wires are disconnected
Repair
5 Low voltage adjusted by the regulator Repair
6 Contacts of regulator are burnt Repair or replace the assembly
16. Undercharged generator