3 Initial and final procedures
10
en
XL-SA30000RM-en-DE Rev A • 02.2016 • Errors and changes excluded © SAF-HOLLAND
Caution!
●
Use recommended tools only!
●
Never use an impact wrench or similar to rotate
the reset shaft. Doing so could damage the inter-
nal components of the mechanism! The maxi-
mum torque is 20 Nm.
●
Dirt must not be allowed to enter the aperture of
the reset shaft.
●
Use a vacuum cleaner to clean the surfaces. Do
not use compressed-air.
●
Take care when using chemicals and/or cleaning
tools (e.g. knives, brushes, etc.). This to avoid
damage or displacement of hoses, seals and
other components.
Note:
The Torx 55 and thrust plate must be allowed to
move unhindered!
1
2
3
4
B
A
Fig. 8 -
De-adjusting with the reset shaft
3. Using a Torx 55 socket, de-adjust the brake by
rotating the reset shaft anti-clockwise by 4 clicks,
or until the end stop, see item B ,
.
A clicking sound must be heard and felt when
de-adjusting.
Caution!
●
When reaching the end stop position of de-ad-
justment, never tighten and leave. Leaving the re-
set shaft tightened in the de-adjust position could
stop the adjustment function from working!
●
After reaching the end stop position, always then
adjust by rotating the reset shaft clockwise 90
degrees, thus activating the adjustment function.
4. Leave the Torx 55 in position in the reset shaft.
x5
1
2
3
4
5
Fig. 9 -
Brake actuation
5.
Actuate the brakes five times by pressing and
releasing the vehicle brake pedal through its full
. If no brake chamber is fitted
then actuate the brake chamber lever manually
with a suitable tool.
6. The Torx 55 must rotate clockwise on each ac-
tuation, showing that the automatic adjustment
function is working.
7. If the Torx 55 rotates back and forth or not at all,
then the adjustment function is not working cor-
rectly.
8. To check further, manually adjust the reset shaft.
Rotate the Torx 55 clockwise 360 degrees, and
then anti-clockwise 180 degrees. In so doing,
ensure that the adjuster is not jammed at the full
de-adjust position.
9. Observe the following. Once the excessive clear-
ance is taken up by the adjuster, the Torx 55
will suddenly stop rotating. If in doubt, rotate the
Torx 55 anti-clockwise 180 degrees and then press
the brake pedal again to check.
