Iveco Stralis AT/AD. Manual - part 65
Carry out the following operations:
Measure the distance (A) between the bottom of the
spherical cavity of the clutch lever and the actuator
fixing surface. Press the spherical push rod to reach
the stop (C).
Loosen the nut (D).
Screw or unscrew the push rod (F) to obtain the dis-
tance (B).
B = A — E
E = 26 mm (VALEO or BORG & BECK clutch)
E = 30 mm (FICHTEL & SACHS clutch)
35537
!
It is necessary to observe this adjustment to make the
worn plate indicator trip, which is located in the oper-
ator cylinder, close to the complete wear of the fric-
tion linings.
The plate wear (90% of the friction material) is indi-
cated by a significant increase in load on the pedal
when disengaging the clutch.
!
Should any oil leaks from the main cylinder and/or
the clutch actuator be detected, replace the involved
component and bleed the hydraulic system.
505272
PUSH ROD ADJUSTMENT
Operator cylinder (new clutch)
BLEEDING CLUTCH CIRCUIT
Bleed air from clutch hydraulic circuit after repairing clutch as-
sembly or following periodic oil changes. Use air remover
99306010 for this purpose as follows:
- introduce compressed air into reservoir (5);
- fill reservoir (4) with Tutela TRUCK DOT SPECIAL fluid;
- replace clutch reservoir cover (
⇒) with one of those
provided with device 99306010 and connect device line
to cover.
1
!
When clutch fluid is changed, bleed master cylinder
by loosening fitting (1, Figure 31) before bleeing clutch
servo.
40355
- apply a plastic pipe to bleed screw (2) of slave cylinder (1)
and immerse the opposite end of the pipe in a recipient
containing Tutela TRUCK DOT SPECIAL fluid. Undo bleed
screw (1) by one turn, open (see Figure 31) crock (2) until
pressure gauge (3) shows a reading of 1
÷ 1,2 bars;
- when clutch fluid emerging from circuit is free of bubbles,
tighten bleed screw and drain air from device reservoir
(5) through valve (6).
Figure 30
Figure 31
Figure 32
18
CLUTCH
S
TRALIS
AT/AD
Base - January 2003