WEICHAI WD10 - 3214 Underpowered Starter Motor; 3215 Generator Generates Nothing; 3216 Generator Undercharging

Service Manual for WD10 Diesel Engine
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3214 Underpowered Starter Motor
1. Undercharged battery
Check, recharge or replace the battery.
2. Bearing sleeve wear
Replace the assembly.
3. Bad contact of electric brush
Clean the brush or replace it.
4. Dirty or burnt commutator
Wipe out oil dirt and polish it with abrasive paper or
replace it.
5. Loose weld of terminals
Re-weld.
6. Bad contact of switch
Check the switch and replace it.
7. Worn clutch slipping
Adjust working torque of the clutch or replace it.
3215 Generator Generates Nothing
1. Open circuit, short circuit or loose
terminals
Check the wiring of generator and ampere meter,
repair.
2. Open circuit, short circuit or grounding of
rotor coil or stator coil.
Repair or replace the assembly.
3. Damage of rectifier tube
Replace the assembly.
4. Destruction of terminal paper insulation,
disconnected wire.
Repair
5. Too low regulator adjusting voltage.
Adjust
6. Burn out of regulator contactor.
Repair or replace the assembly.
3216 Generator Undercharging
1. Open circuit, short circuit or loose
terminals
Repair.
2. Open circuit, short circuit or grounding of
rotor coil or stator coil.
Repair or replace the assembly.
3. Loose generator belt
Check and tighten the belt.
4. Damage of rectifier tube, bad contact of
battery
Repair.
5. Too low regulator adjusting voltage
Adjust
6. Disconnected regulator field coil or
resistance wiring
Repair or replace.
7. Low battery acid level or aged battery
Add acid or replace the battery.