Brakes Adjustment - PRONAR RC3100 Operator's Manual

Maintenance

6.3 BRAKES ADJUSTMENT

1
2
Figure 6.3 Brake adjustment
(1) expander levers
(2) expander shaft
(3) adjusting bolt
• Secure the trailer using additional
chocks.
• Release trailer's parking brake.
• Dismantle brake cylinder fork pin.
• Make a line (A) on brake cylinder
piston rod (1) - figure (6.4) to indicate
the position of the maximum with-
drawal of brake cylinder piston rod.
• Press the tractor brake pedal and
mark the position of the maximum
extension of the brake cylinder piston
rod (B) with a line.
• Measure the distance between lines
(A) and (B). If the stroke of the brake
cylinder piston rod is outside the
proper operating range - table (5.3),
• Remember or mark the original po-
• Check if the brake cylinder piston rod
3
• Check if the brake cylinder is cor-
• Check if the brake cylinder vent holes
526-I.17-1
Figure 6.4
(1) piston rod
(3) expander levers
(5) cylinder fork
(7) cylinder bracket
(A) mark on the piston rod at brake release
position
(B) mark on the piston rod at braking position
(C) position of arm at brake release position
(D) position of arm at full braking position
adjust the expander lever.
sition of pin (6), figure (6.4), in ex-
pander lever opening (3).
moves freely and within the whole
nominal range.
rectly installed.
1
B A
2
7
A
Principle of brake adjustment
(2) membrane
(4) adjusting bolt
(6) pin position
PRONAR RC3100
Section 6
25-45 mm
C D
6 5
4
3
526-I.18-1
6.5