7.7.2. Possible malfunctions, their reasons and methods of elimination

Cause of defect
Elimination method
The electric motor of a cleaner does not work, the bimetallic safety lock does not work and F16 safety lock in the assembly block does not fuse
1. Motor-reducer food wires are damaged, tips of wires in connecting blocks are oxidized
1. Check the wires damaged replace. Smooth out tips
2. The cleaner switch is damaged
2. Replace the cleaner switch in the understeering switch
3. Lag of brushes of the electric motor, strong pollution or podgoraniye of a collector
3. Check, eliminate lag of brushes or replace the damaged details; smooth out a collector
4. Break of a wire in an electric motor anchor winding
4. Replace an anchor or a motor-reducer
The electric motor of a cleaner does not work, the bimetallic safety lock works or F16 safety lock in the assembly block fuses
1. Levers of the mechanism of a cleaner are deformed and touch body details
1. Check, correct levers or replace a cleaner
2. Brushes froze to glass
2. Tear off brushes from glass, without allowing damage of a rubber tape
3. The foreign subject got to the mechanism of a cleaner
3. Check, take a subject
4. Short circuit in an electric motor anchor winding
4. Replace a motor-reducer or an anchor of the electric motor
The electric motor of a cleaner does not work in the faltering mode
1. The cleaner switch is damaged
1. Replace the cleaner switch in the understeering switch
2. The cleaner relay is damaged
2. Replace the relay
The electric motor of a cleaner does not stop in the faltering mode
1. The cleaner relay is damaged
1. Replace the cleaner relay
2. The cam of a gear wheel of a motor-reducer does not unbend a spring plate of the trailer switch
2. Turn in a switch plate that the cam unbent a plate, or turn in contacts of the trailer switch
3. Pollution of contacts of the trailer switch in a motor-reducer
3. Smooth out contacts of the switch
The electric motor of a cleaner works, brushes do not move
1. Motor-reducer gear wheel teeths are broken
1. Replace a gear wheel
2. Weak fastening of a crank on a motor-reducer gear wheel axis
2. Check, tighten a nut of fastening of a crank, having established it in final situation