UAZ UAZ-374195, Руководство по эксплуатации

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Rearranging brake drums from one hub to another is not recommended, as this leads to an increase in the run-out of
the working surfaces of the drum.
The gap between the pads and the drum as the pads wear out is restored automatically.
Check the wear of the pads through the holes in the shields. To do this, remove the hole plugs, inspect the pads (the
thickness of the pads should not be less than 2.5 mm), close the holes with blind plugs.
In case of large wear of the linings (rivets recessed less than 0.5 mm) they must be replaced.
In the case of glued linings, replace the pads when the linings are worn to a thickness of less than 1.5 mm.
When replacing worn pads or linings, the pistons, together with the stop rings, must be moved deep into the cylinder
in order to fit the drum freely onto the pads. After assembly, it is necessary to press the brake pedal 2-3 times to set the
pistons into work position.
Fig. 9.29 Rear wheel brake:
a - marks on the support pins;
1 - support fingers; 2 -shield; 3 - holes for visual control of the brake lining condition; 4 - wheel brake cylinder; 5 - blow-off valve; 6, 12
- brake pads; 7- protective cap; 8 - piston; 9 - sealing rings; 10 - retaining ring; 11 - release spring
Do not press the brake pedal with the brake drum removed or the front brake pads removed, as the pistons will be
squeezed out of the wheel cylinders under the pressure of the fluid and the fluid will flow out.
To facilitate subsequent removal, with each removal of the drum, grind the shoulder on the edge of the friction
surface resulting from drum wear.
With the hubs removed, tighten the brake shield mounting bolts.
Pressure regulator. Vehicles that are not equipped with anti-lock brakes have a mechanical pressure regulator
acting on the rear brakes (fig. 9.30), which provides optimal distribution of braking forces on the axles of the vehicle and
prevents the rear wheels from advanced locking. During service, check that the pressure regulator is operating properly.
Clean any dirt from the regulator and check that it is securely fastened. Check externally that the regulator and its drive
parts have no damages, there are no leakages of brake fluid, and there is no clearances in the connection between the rack
and the springing arm and bracket on the rear axle.
Fig. 9.30 Pressure regulator:
Rear loop input
Rear loop output
Front loop input