The windshields are washed and cleaned by an electric windshield washer and wiper
To activate the windshield washer pump 1 (Fig. 1), press the switch button 6 and hold it in this position for no more than 10 s.
In this case, the liquid from the tank 2 is supplied to the nozzles 3, through which it is sprayed onto the windshields. After releasing the key, it returns to its original position.
To turn on the windshield wiper, press the three-position switch key.
In the first position of the switch, the windshield wiper provides 20-45 double strokes of the levers with brushes in 1 min, in the second position - at least 45 strokes.
Possible malfunctions of windshield wipers, causes and methods for eliminating them
- During operation, the brush touches parts of the cabin:
Incorrect installation of the lever on the axle - Remove the nut securing the lever on the axle, and then the lever; turn on the windshield wiper and turn it off after 30 ... 60 s; install the lever with
the brush so that the brush is located at a distance of 10-20 mm from the edge of the seal, secure the lever, turn on the windshield wiper and check the installation of the lever
- The windshield wiper operates at one speed:
Switch malfunction - replace the switch;
Gearmotor malfunction - replace the gearmotor;
Break in the power supply circuit of one of the gearmotor brushes - eliminate the break
- The gearmotor does not turn on:
Blown fuse - find the fault in the electrical wiring; eliminate. Replace the fuse
Gearmotor failure - replace the gearmotor;
Power supply circuit break - fix the break
- Windshield wipers do not clean the windshield well:
Worn out or aged rubber of the wipers - clean the glass from oil by rinsing it with clean water or a degreasing solution. Replace the wipers
Replacing the windshield wiper
We replace the windshield wiper if the rods are bent, the axles and bushings are worn. Also in case of gearbox parts failure and drive electric motor failure
Windshield wiper removal
Disconnect the vehicle ground
Disconnect the electrical connector in the windshield wiper motor power supply wires
Unscrew nuts 1 and remove wiper arms 2
Unscrew nut 5 (Fig. 3), remove the traction crank from the drive shaft
Unscrew nuts 3 (Fig. 2), remove the set of washers 4 and fittings
Unscrew bolts 4 (Fig. 3) and remove electric motor 1
Remove the gear motor by unscrewing the screws securing the gear motor to the bracket
Installing the windshield wiper
Secure the gear motor to the bracket by screwing in the screws
Install the drive on the inner panel of the front of the cabin, checking the presence and serviceability of the rubber gasket
Install bushings 5 (Fig. 2) on the traction fittings
Install the traction, securing nipples on the outer front panel, install a set of washers 4 and tighten nuts 3
Secure the traction crank on the gearbox shaft with nut 5 (Fig. 3)
Install the brush levers 2 (Fig. 2) on the splined ends of the nipples so that the brushes are at the lower edge of the windshield, tighten nuts 1
Connect the electrical connector of the windshield wiper wire bundle and the front wire bundle
Turn on the vehicle ground and check the operation of the windshield wiper
The electrical circuit and operation of the windshield wiper power supply system are described in the article - "Windshield Wiping System of the KamAZ Vehicle"
