Service Manual
Operation & Maintenance Manual for WP7 Euro  Ⅵ 
Vehicle Diesel Engine   
18 
3.12  The starter motor does not work 
Causes
Troubleshooting
1.   The battery is not fully charged   
Examine, charge or replace the battery
2.   Wires are nor well connected   
Well connect the wires
3.  Fuse is burnt 
Replace the fuse
4.   Electric brush has poor contact 
Clean the bush surface or replace the bush
5.   The motor itself is short circuited 
Repair the motor or replace the assembly
3.13  The generator does not work at all 
Causes
Troubleshooting
1.  Wires are open or short circuit or the 
connectors are loose 
Check the wiring of the generator and ampere 
meter and repair 
2.  Rotator and stator coils are open or 
short circuit or grounded 
Repair or replace the assembly
3.   Rectifier tube is damaged 
Replace the assembly
4.   The paper insulation of the terminal 
post  is  damaged,  the  wire  is 
disconnected   
Repair
5.   The voltage of adjustor is too low   
Repair
6.   Contacts of adjustor are burnt 
Repair or replace the assembly
3.14  Undercharged generator 
Causes
Troubleshooting
1.  Wires are open or short circuit or the connectors are 
loose 
Repair 
2.  Rotator and stator coils are open or short circuit or 
grounded 
Repair or replace the assembly 
3.  Generator belt is loose   
Repair  and  adjust  the  belt 
tension 
4.  Damaged  generator  rectifier  tube  or  poor 
contact of brush 
Repair 
5.  The voltage of adjuster is too low 
Adjust 
6.  Disconnected field coil or resistor wire of the 
adjuster 
Repair or replace 
7.  Insufficient electrolyte or the battery is old 
Add  electrolyte  or  replace  the 
battery 










