Heater Motor Parts
1 - lock washer; 2 - washers; 3 - body; 4 - anchor; 5 - crackers; 6 - cover
Data for verification
Shaft rotation frequency when the motor is loaded with an impeller at a voltage of 12 V and temperature (25±10) °С, min–1 | 3000 ± 150 |
Consumed current at the specified load and speed, no more than, A | 4,5 |
Low frequency of rotation of the armature shaft with impeller, min–1 | 2200 ± 150 |
Current consumption at armature speed 2200 min–1, no more, A | 2,7 |
DC electric motor ME-255 with excitation from permanent magnets. The electric motor connection diagram is given in subsection 12.7.
When an additional resistor 3 is connected to the power supply circuit of the electric motor, the armature shaft rotates at a reduced frequency. The resistor is secured with two spring washers in the heater fan housing. The resistance value of the resistor is 1.5 ohms at 200°C.
A defective motor is usually recommended to be replaced. The only possible repair is cleaning the collector.
1. To disassemble the electric motor, it is necessary to unscrew the screws securing the cover 6 (see fig. Heater Motor Parts) and take it off.
2. Then you should remove the lock washer 1 from the armature shaft and remove the armature 4 from the housing.
3. Assembly is carried out in reverse order.
4. The condition check is the same as described above for the windshield wiper motor.