Brake light switch
The brake light switch is mounted on the side of the brake pedal
The serviceability of the switch can be checked using a test lamp according to the diagram in fig. 1
When the switch stem protrudes 15 mm, the pilot lamp should be on, and when the stem is pressed (protrusion 10.5 mm), the lamp should go out.
The voltage drop at the switch terminals should be no more than 0.1 V at a current of 6 A. Replace the faulty switch.
When installing a new switch, adjust its installation on the bracket.
The stop lamps should only come on when the pedal free play has been selected.
Reversing light switch
The reverse light switch (Fig. 2) is used to automatically turn on the light when reversing.
The switch is installed in the gearbox and is mechanically connected to the gear lever.
When the lever is in the appropriate position, the switch connects the reversing light circuit to the power source.
During operation, periodically check the reliability of the fastening of the switch.
The switch can be checked using a test lamp.
The lamp should light up with a ball stroke of 1-2 mm. Replace defective switch.
The alarm switch 24.3710 is checked according to the diagram in fig. 3.
In the off position, lamp 1 should be lit, in the on position - 1, 3 and 4, as well as in the switch handle. If one of the lamps does not light in the appropriate position, replace the switch.