Repair 1800 SRM 1038
17. Put the second seal in the space between the
housing and the piston on top of the first seal.
The rubber part of the seal must be away from
you. Install the second seal according to the fol-
lowing procedure:
a. Push on the seal until the seal touches the
spacer. Make sure the seal is correctly in-
stalled in the housing. The seals must be
parallel to each other. Install the complete
seal with this method. See Figure 22 and Fig-
ure 25.
A. RUBBER PART AWAY
1. OUTERPISTONSEAL
Figure 25. Outer Piston Seal
INSTALL
Hub Oil Seals
NOTE: Single- or double-hub oil seals are used on all
brake housings with forced cooling and most brake
housings with sump cooling. See Figure 26.
Double Seals
WARNING
To prevent serious eye injury, always wear safe
eye protection when doing maintenance or ser-
vice.
To avoid serious personal injury, be careful
when using Permatex. Follow the manufac-
turer’s instructions for safe use to prevent
irritation to eyes and skin. Wash after skin
contact. If the Permatex gets in the eyes, flush
your eyes with water for 15 minutes. Have
eyes checked by doctor.
1. Position the wheel hub so that the wheel hub is
flat on the floor.
2. Apply Permatex 51D or its equivalent to the
outerdiameterofthesealcasing.
3. Put the outer seal into the bore so the stamping
on the seal casing is toward you.
4. Use a suitable driver and a leather or plastic mal-
let to install the seal. Tap on the driver until the
seal casing is even with the top of the bore.
1. INNER BEARING CUP
2. INNER BEARING CONE
3. OUTER SEAL
4. INNER SEAL
Figure 26. Double Seal
NOTE: When installed, the inner seal pushes the first
or outer seal into the correct position.
5. Install the inner seal with the stamping on the
bottom, over the outer seal.
6. Use a suitable driver and a leather or plastic mal-
let to install the seal. Tap on the driver until the
seal casing is even with the top of the bore.
Single Seal
1. Position the wheel hub so that the wheel hub is
flat on the floor.
12
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