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XL-SA20018UM-en-US Rev H · 2017-12-14 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF, and logos are trademarks of
SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Disc Brake Servicing
Figure 33
Figure 34
DIAL INDICATOR
Figure 32
KEYWAY TANG
ABS BLOCK MUST CLEAR ROTOR
ATTACHMENT BOLTS
KEYWAY
NO CONTACT
IMPORTANT:
DO NOT tighten nut to align teeth.
Failure to properly tighten nut could
result in bearing damage which, if not
avoided, could result in bearing failure.
j. Using a dial indicator, verify that end play reading is
.001" (0.03 mm) to .003" (0.08 mm). Re-adjust bearing,
if necessary.
k. Make sure that the keeper tab and keeper
arms are fully seated into the undercut groove.
Inspect the keyway tang to ensure it does not
contact the bottom of the keyway
(Figure 32)
.
If contact exists, immediately notify a Pro-Torq
®
representative.
Failure to ensure that the keeper is
properly installed could cause wheel
separation which, if not avoided, could
result in death or serious injury.
4. ABS sensor block must clear rotor attachment bolts. Refer
to Section 9.
When installing new washers, the
attachment bolts can interfere with the
ABS sensor block. Ensure that there is
clearance provided for ABS Sensor Block
(Figure 33)
. Failure to provide clearance
can cause damage to property. Refer to
service bulletin XL-SA20031SB-en-US for
ABS Sensor Block Modification Procedure.
5. Check the wheel bearing end play as follows:
a. Attach the magnetic base of a dial indicator to the
spindle. Touch dial indicator stem to hub cap gasket
face
(Figure 34)
.
b. Reading Number One - Slightly rotate wheel-end in both
directions while pushing inward until dial indicator does
not change. Set the dial indicator to zero
(Figure 34)
.
c. Reading Number Two - Slightly rotate hub in both
directions while pulling outward until dial indicator
does not change
(Figure 34)
.
d. End play is the difference between reading number
one and reading number two.
NOTE:
Final adjustment should allow the wheel to rotate
freely with 0.001" - 0.003" (0.03 mm - 0.08 mm)
end play. If end play is not within specification,
re-adjustment of bearing is required.
IMPORTANT:
If end play is not within specification,
re-adjustment is required.
Failure to maintain proper hub bearing
adjustment could allow bearing failure and
wheel-end separation which, if not avoided,
could result in death or serious injury.
