Operation & Maintenance Manual for WP7 Euro Ⅵ Vehicle Diesel Engine 3.15 Unstable generator charging current 3.16 Overcharged generator 3.17 Abnormal generator sound 3.18 Abnormal pressure of the urea solution pump 19 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. 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 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 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