Inspection Of Mechanical Brakes - PRONAR RC3100 Operator's Manual

Section 5

5.13 INSPECTION OF MECHANICAL BRAKES

TIP
Check technical condition of brakes:
• according to the inspection schedule,
• before the period of intensive use.
• after repair of braking system.
• in case of uneven trailer wheels braking.
If the brake is correctly adjusted, the brake
cylinder rod stroke (X-Y), figure 5.11,
should be within the range specified in
table (5.3) and it depends on the cylinder
type. At full braking, the optimum angle
between the expander lever and the cyl-
inder rod should be about 90°. This setting
ensures the best possible braking force.
The inspection of brakes consists in meas-
uring this angle and the brake cylinder rod
stroke for each wheel.
SCOPE OF ACTIVITIES
• Measure the X distance when the
tractor brake pedal is released.
• Measure the Y distance when the
tractor brake pedal is depressed.
• Calculate the difference between the
5.16 PRONAR RC3100
Technical inspection schedule
X
Y
B
A
4
3 2 5 1
Figure 5.11 Inspection of brake
(1) cylinder piston rod
(3) adjusting bolt
(5) pin position
(A) position of arm at brake release position
(B) position of arm at braking position
distances (X-Y) (cylinder rod stroke).
• Check the angle between the cylinder
rod axis and the expander lever.
• If the expander arm angle (2) and the
cylinder rod stroke are outside the
range specified in table (5.3), adjust
the brake.
621-I.10-1
(2) expander arm
(4) cylinder fork
I.3.1.621.13.1.EN