Operation & Maintenance Manual for WP7 Euro
Ⅵ
Vehicle Diesel Engine
19
3.15
Unstable generator charging current
Causes
Troubleshooting
1. The stator or rotor coil is about to open or
short circuit
Repair or replace.
2. Poor contact of brush
Repair
3. The terminal is loosened with poor contact Repair
4. The voltage adjuster is damaged
Repair
5. The voltage is improperly adjusted
Check and adjust.
3.16
Overcharged generator
Causes
Troubleshooting
1. Internal short circuit of battery
Repair or replace
2. High adjuster voltage
Repair and adjust
3. Poor grounding of adjuster
Repair
4. Contact failure or contamination of
adjuster; the voltage coil or resistor wire is
open
Repair or replace
3.17
Abnormal generator sound
Causes
Troubleshooting
1. Improper installation of generator
Repair
2. Damaged bearing
Replace the bearing
3. Moving part interferes with the fixed part Repair or replace
4. Rectifier short circuit
Replace
5. Stator coil short circuit
Repair or replace
3.18 Abnormal pressure of the urea solution pump
Causes
Troubleshooting
1. The filter element of urea solution pump is
blocked
Wash or replace the filter element
2. Poor urea solution quality, containing too
much impurity
Replace the urea solution and wash
the urea solution tank
3. Urea solution nozzle is blocked
Replace