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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
11.2 Hub Mounted Wheel Seal Installation
Instructions (Refer to 11.1 for spindle
mounted seal installation)
1. Remove all burrs from the hub bore and spindle. Thoroughly
clean hub cavity and spindle.
NOTE:
DO NOT apply any sealant to the spindle shoulder.
2. Place the hub on a smooth, hard surface in a horizontal
position. Pre-lube the inner bearing and place it into the
hub bearing cup
(Figure 26)
.
NOTE:
When using grease, pre-pack the inner bearing
before placement into the hub.
3. Place the wheel seal on the installation tool, make sure
that the words “oil-bearing side” faces the inner bearing.
Position the tool (with the seal correctly mounted in the
tool head) into the hub bore. Use a three to five pound
hammer to drive against the end of the tool. Drive seal
into bore until complete bottoming is assured
(Figure 27)
.
Remove the installation tool and apply a thin layer of
lubricant on the I.D surface of the seal.
NOTE:
DO NOT apply lubricant to the O.D. of the seal.
11.3 Hub Installation and Bearing Adjustment
1. Gently push the head unit onto the spindle to the proper
position. Fill the hub cavity with lubricant until it runs
over the outer bearing cup.
NOTE:
When using grease, pre-pack the hub cavity. The
grease fill amount should be to a 3 o’clock and
9 o’clock level. This is to ensure a 50% hub cavity
fill. Use a template to hold grease in place while
filling the hub cavity
(Figure 28)
. 3shoulder. This
could damage the wheel seal.
2.
Coat the outer bearing with
lubricant and place the outer bearing
on the spindle and into the bearing cup
(Figure 28)
.
Install outer bearing on spindle.
3. Install the axle nut(s)
Three (3) piece axle nut:
a. Install the bearing inner-axle adjustment nut finger
tight against the outer bearing
(Figure 29)
.
b. While rotating the hub assembly, tighten the inner
axle adjustment nut to 200 ft.-lbs. (271 N•m).
c. Back off the inner axle adjustment nut one full turn
and then re-torque the nut to 50 ft.-lbs. (68 N•m)
while rotating the hub assembly.
Figure 28
PRE-PACK OUTER
BEARING WITH GREASE
PRE-PACK HUB CAVITY
WITH GREASE
GREASE LEVEL
TEMPLATE
Figure 27
HUB SEAL
INSTALLATION TOOL
DISC HEAD UNIT
Figure 29
OUTER BEARING
INNER AXLE NUT