8.3.2. Possible malfunctions of the generator, their reason and methods of elimination


Cause of defect
Elimination method
The arrow of the voltmeter is in a red zone at the beginning of a scale
1. Slipping of a belt of the drive of the generator
1. Adjust a belt tension
2. Break in an excitement winding power-supply circuit
2. Restore connections
3. The generator tension regulator is damaged
3. Replace the regulator
4. Wear or lag of brushes of the generator; oxidation of contact rings
4. Replace the brush holder with brushes; wipe rings with the rag moistened in gasoline
5. Break or short circuit on the mass of a winding of excitement of the generator
5. Replace a rotor
6. Short circuit or break in one or several diodes
vypryamitelny block
6. Replace the vypryamitelny block of the generator
7. Break or mezhvitkovy short circuit in a stator winding
7. Replace the generator stator
8*. Break in a chain of giving of tension from a conclusion "30" to the generator plug "15"
8. Restore connections, check a safety lock "10"
9*. Short circuit between the screw of fastening of the brush holder and the tire of a brush,
attached to a conclusion "In" the regulator
9. Eliminate short circuit or replace the plastic basis of the brush holder
10 **.Обрыв or short circuit in additional diodes of vypryamitelny
block
10. Replace the damaged diodes or the vypryamitelny block
The control lamp does not burn. The arrow of the voltmeter is in a red zone at the beginning of a scale **
1. The control lamp fused
1. Replace a lamp
2. Break in a chain between a conclusion "30" and the plug "61" of the generator
2. Restore connections, check a safety lock of "I0"
3. There is no contact between conclusions "In" and "Ш" the regulator of tension and conclusions
brushes (at release generators till 1996)
3. Smooth out conclusions "In" and "Ш" the regulator of tension and conclusions of brushes, turn in
regulator conclusions
4. The wire was disconnected from a conclusion "In" the brush holder
4. Attach a wire
The arrow of the voltmeter is in a red zone at the end of a scale
1. Tension regulator is damaged (short circuit between conclusion "Ш" and
weight)
1. Replace tension regulator
2*. Short circuit between the screw of fastening of the brush holder and the tire of a brush,
attached to conclusion "Ш" of the regulator
2. Eliminate short circuit or replace the plastic basis of the brush holder
The increased noisiness of the generator
1. The generator pulley nut weakened
1. Tighten a nut
2. Generator bearings are damaged
2. Replace bearings
3. Mezhvitkovy short circuit (howl the generator)
3. Replace the stator
4. Scratch of brushes
4. Wipe brushes and contact rings with the cotton napkin moistened in gasoline
* Malfunctions only for the generator G! 222.
** Malfunctions only for the generator 37.3701. Other malfunctions the general for both generators.