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CHAPTER 5
The control involves measuring the extension length of each piston rod during braking at a
standstill. If the piston rod stroke exceeds the maximum value (45 mm), the system should be
adjusted.
Figure 5.6
Brake adjustment rule
(1) piston rod, (2) cylinder diaphragm, (3) expander arm, (4) control screw, (5) cylinder fork,
(6) fork pin position, (7) cylinder bracket, (A) marker on the piston while unbraked, (B) marker
on the piston when fully braked, (C) expander arm position when unbraked, (D) expander
arm position when fully braked
The scope of service activities
Hitch the trailer to the tractor.
Turn off the tractor engine and remove the ignition key.
Immobilize the tractor with parking brake.
Make sure that the trailer is not braked.
5.13
Pronar T400
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