Removing and installing the GAZ-3110 brake pressure regulator
The pressure regulator is attached with two bolts to the bracket in the rear of the body
It prevents earlier blocking of the rear wheels in relation to the front ones, which increases the directional stability of the car when braking.
By reacting through the load spring to the loading of the rear axle, it limits the fluid pressure in the rear brake circuit.
The regulator is not repairable - in case of failure it is replaced.
After replacing the adjuster or elements of the rear suspension, it is necessary to re-adjust the position of the load spring relative to the rear axle.
When properly adjusted, when braking on a level paved road, the front wheels should lock slightly before the front.
If, after adjustment, the rear wheels lock up before the front wheels, or the front wheels lock up much earlier than the rear wheels, then the pressure regulator is faulty and needs to be replaced.
- 1. Unscrew the fastening nut 1 and detach the pressure regulator strut 2 from the rear axle bracket 3
- 2. Loosen the fastening nuts and disconnect lines 1 and 3 from the pressure regulator
Close up pipe openings.
Unscrew the two fastening nuts 5 and remove the pressure regulator 2 from the bracket 4.
Install the pressure regulator in the reverse order of removal.
After installation, bleed the rear brake circuit and adjust the position of the pressure regulator loading spring.
- 1. Unscrew the fastening nut 1 and detach the pressure regulator support 2 from the bracket 3 of the rear axle.
- 2. Loosen the lock nut 1 and, turning the adjusting bolt 2 on the pressure lever 3, set the dimension 30–38 mm between the centers of the strut axle and the axle hole in the rear axle bracket.
Tighten the lock nut 1 while holding the adjusting bolt 2.
3. Insert the rack axle into the bracket hole and tighten the fastening nut.
Let's take a closer look at the removal and adjustment of the brake pressure regulator in pictures
Removing the pressure regulator
- 1. We unscrew the nut securing the regulator strut to the rear axle bracket with a 12 wrench and remove the axle from the hole.
- 2. Using a 12 wrench, we unscrew the two fittings of the brake pipes from the regulator body.
To prevent leakage of brake fluid at the ends of the tubes, we put on dirt caps from the bleeding valves.
3. Using a 13 wrench, unscrew the two nuts securing the bracket to the floor and remove the pressure regulator assembly
4. Using keys 12 and 13, we unscrew the two bolts securing the regulator to the bracket
5. take out the regulator
Install the regulator in the reverse order
After installing it on the car, it is necessary to bleed the rear circuit of the brake system and adjust the position of the load spring.
Adjusting the pressure regulator actuator
We set up the pressure regulator by setting the car in running order, i.e. filled, with a set of tools and a spare wheel for the inspection ditch.
- 1. Disconnect the lower end of the regulator strut from the rear axle bracket.
- 2. Using a 17 key, we unscrew the lock nut a few turns, holding the adjusting bolt with a 12 key.
Turning the adjusting bolt with a 12 wrench and pressing the lever against the regulator piston, set the distance of 30–38 mm between the axis of the regulator post and the bracket hole
Holding the adjusting bolt with a 12 wrench, tighten the lock nut with a 17 wrench.
We fix the lower end of the regulator strut on the rear axle bracket.