BELARUS-920.4/952.4 Operating manual
36
2.4.3.2
Adjustment of trailer brake hydraulic drive
Adjustment of trailer brake hydraulic drive consists in adjustment of pull-rod 2 (Fig. 2.9) of
brake valve 1. Dimension A (0.5 to 1 mm, between the finger and the upper edges of the grooves
in the arms) should be checked, when service brake pedals are released, while changing it by
means of the end 2 of the pull-rod 4 rotation. Dimension B (35 ± 1.25 mm) between lower edge of
the end 4 and upper nut 3 (Fig. 2.9) should be secured through rotation of nuts 3 and locking them
after the adjustment.
1 – brake valve; 2 – pull-rod; 3 – nut; 4 – rod end
Figure 2.9 Adjustment of brake valve pull-rod
ATTENTION: ADJUST THE BRAKE VALVE DRIVE WHEN THE SERVICE BRAKE
PEDALS ARE NOT PRESSED AND THE PARK EMERGENCY BRAKE IS COMPLETELY
DISENGAGED, WHICH MUST BE ADJUSTED FIRST.
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