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10:14. Check of a state and replacement of brake shoes

Check

Visual check of a condition of brake shoes

Arrow — the Direction of the review


 PERFORMANCE ORDER

  1. Visual assessment of a condition of blocks can be made through an aperture in a rim and in remove an observation port the brake mechanism (shooter). In parallel it makes sense to estimate a condition of a brake disk.
  2. In case of need prepare replaceable components.

Removal and installation

Brake shoes have to change a set at the same time for both wheels of one axis!

Brake mechanisms with supports of the fixed type

Details of installation of brake shoes in supports of the fixed type (1 of 2)

41 — the Fixing finger
41a — the Spring plate
43 — Blocks
47 — the Piston of the wheel cylinder
52 — the Contact block

031 — the Squeezing device
035 — the Drift
070 — the Stripper
S10/1 — the Left forward sensor of wear of blocks

Details of installation of brake shoes in supports of the fixed type (2 of 2)

030 — the Brush for cleaning of a support


 PERFORMANCE ORDER

  1. Release the sensor of wear of blocks (S10/1 or S10/2) from a contact block (52).
  2. By means of a drift (035) take a fixing finger (41).
  3. Remove a steel spring plate (41a).
  4. By means of a stripper (070) take brake shoes (43).
  5. Separate the sensor of wear of frictional slips (S10/1 or S10/2) from a block.

The failed sensors should be replaced.

  1. By means of special adaptation (031) wring out the piston (47) of the wheel cylinder, - previously pump out a little liquid from the tank, having provided a certain stock of volume on rise in level.

The opposite pair of pistons should be blocked from pushing out by means of wooden struts.

  1. Working in a similar manner wring out opposite pistons, - try not to bend the thermofilter.
  2. Smooth out the directing support surfaces by means of a special brush (030).
  3. Installation is made upside-down, - before landing of blocks slightly grease their side surfaces (arrows) with special paste. Track that the fixing finger was put in a support against the stop, - again use a drift.
  4. In conclusion check the level of brake fluid in the tank, in case of need make the corresponding adjustment.

Brake mechanisms with supports of floating type

Details of installation of brake shoes in supports of floating type (back bridge)

1 — the Anchor bracket
2 — the Support

3 — Bolts
4 — Blocks

 PERFORMANCE ORDER

  1. Turn out from an anchor bracket (1) bolts (3).
  2. Without disconnecting a brake hose, remove a support (2).
  3. Take brake shoes (4).
  4. Wring out pistons in cylinders, - track that liquid was not forced out too much the GTTs tank, in case of need pump out surplus.
  5. Smooth out a support by means of a special brush.
  6. Installation is made upside-down. Do not forget to check and in case of need to correct liquid level in the GTTs tank.