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CHAPTER 5
Trailer wheels must brake simultaneously. Adjustment of brakes involves changing the
setting of the expander arm (1) – figure 5.4), in relation to expander shaft (2).
Scope of maintenance
Dismantle the pin (3) fixing the cylinder fork (4) to expander arm (3).
Mark position of expander arm (1) with regard to the shaft (2).
Dismantle the arm and set it in the appropriate position:
Repeat the procedure for the second arm.
Replace pin fixing the cylinder fork to expander arm.
FIGURE 5.4
ADJUSTMENT OF AXLE MECHANICAL BRAKES
(1) expander arm, (2) expander shaft, (3) pin, (4) cylinder fork
in direction (A), if the brakes are applied too early,
in direction (B), if the brakes are applied too late,
5.11
Pronar PT512
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