UAZ PATRIOT Operation Manual page 151

1. Check the air gaps correctness between the brake shoes
and the rear brakes drums: press hard the brake pedal several
times while the parking brake drive lever is lowered to its extreme
position.
2. Lift the rear part of the motor vehicle and put secure struts
under it.
3. Set the parking brake lever 3 in the lower position
(Fig. 9.36).
4. Compress the drive by tightening the lever with a force of
min. 400 N (40 kgf) 2-3 times.
5. Turn nuts 4 and 6 and choose the slack of cables 1, 7, 8.
Keep the following sizes: G =1 mm (min), D =35 mm (min),
and keep the difference of sizes M and N max. 6 mm (fig, 9.36).
While choosing the slack of cables do not move levers 9.
6. When adjusted correctly, the lever travel should correspond
to 4-6 clicks of the pawl, and when controlling the travel the
force to the lever must equal to 600+10N (60+10kgf). After
adjusting lever 3 must be lowered and lifted rear wheels should
be turned with hands.
It is forbidden to check the parking brake system while
moving. It should be done only on a slope.
Drive-line parking brake, affecting the driving system
(Fig. 9.37).
Clean the brake shoes from dust and dirt and sand them, if
they get greasy. Replace greasy linings or keep them in clean
gasoline for 20-30 min and grind them with sand paper or wire
brush.
Replace the linings in case of their excessive wear (the rivets
are sunk less than 0.5 mm). Grind the linings on new shoes,
so that their diameter is 0.2-0.4 mm less than the brake drum
diameter.
Despite labyrinth seal of the release and adjusting mechanisms,
they gradually collect dirt, therefore dismantle and clean the
mechanisms (especially the release mechanism), adding new
grease (Litol-24). Do not let the grease contact the drum and
the linings.
Adjust the brake when the brake lever travel gets more than
half of its maximum travel and when braking effect is insufficient.
WARNING! Use a pit or a hoist for adjustment.
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