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Chapter 6
6
5
7
1
3
Figure 6.5 Construction of hydraulic axle brake
(1) expander arm, (2) expander shaft, (3) adjustment screw, (4) hydraulic cylinder,
(5) cylinder piston rod, (6) cylinder fork, (7) cylinder pin
CAUTION
An improperly adjusted brake can cause the rubs to
rub against the drum, which can result in faster wear
of the brake linings and / or overheating of the brake.
operation is approx. 90 °.
The control consists in measuring the ex-
tension length of each piston rod during
braking at a standstill. If the piston rod
stroke exceeds the maximum value
(45mm), the system should be adjusted.
When removing the cylinder fork (6), re-
member or mark the original position of
the cylinder fork pin (7). The mounting
PRONAR T672ECO
6.6
4
2
position depends on the type of braking
system and the size of the tires used in the
trailer, it is selected by the Manufacturer
and cannot be changed.
CAUTION
The mounting positions of the brake cylinder in the
bracket holes and the cylinder pin in the expander
arm are determined by the Manufacturer and cannot
be changed.
Whenever removing the pin or actuator, it is recom-
mended to mark the location of the original attach-
ment.
Technical Support
589-J.03-1
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