PRONAR T046H, Руководство пользователя

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Chapter 5 Periodic inspections
5.14
PRONAR T046H
5.11 CHECKING THE MECHANICAL BRAKES
In a correctly adjusted brake, the stroke of
the brake cylinder piston should be within
the range specified in Table (5.3) and de -
pends on the type of cylinder used. When
the wheel is fully braked, the optimal
angle between the expander lever and the
piston rod should be approx. 90 °. With
this setting, the braking force is optimal.
Checking the brakes consists in meas-
uring this angle and the piston rod stroke
in each wheel.
SCOPE OF ACTIONS
• Measure the distance X with the
tractor brake pedal released.
• Measure the distance Y with the
tractor brake pedal pressed.
• Calculate the distance difference X-Y
(rod stroke).
• Check the angle between the cylinder
piston axis and the expander lever.
• If the expander arm angle (2) and
piston rod stroke exceed the range
given in table (5.3), the brake should
be adjusted.
I.3.4.622.13.1.EN
ADVICE
Checking the technical condition of the brakes:
• according to the schedule of inspections,
• before the period of intensive use,
• after repairing the braking system.
• in the event of uneven braking of the trailer wheels.
614-I.10-1
o 90
C
D
2
3
X
Y
1 4 5
D C
Figure 5.9 Brake check
(1) cylinder piston (2) expander arm
(3) adjustment screw (4) of the cylinder fork
(5) pin position
(C) arm in the uninhibited position
(C) arm in the inhibited position