Service Manual

Page 34
Section 4
Assembly
2. If required, adjust the seal standout height by
using the following methods.
• If the standout height cannot be brought into
specification:
Remove the seal and repeat the
installation procedure.
CAUTION
Push or pull the Toric Ring and face seal only.
Do not push or pull directly on the seal ring. This
can cause component damage.
A. Use the installation tool to push down on the
Toric Ring and face seal.
B. With your fingers, pull up uniformly on the
Toric Ring and face seal.
CAUTION
Apply isopropyl alcohol to the Toric Ring. Check
the retaining lip of the seal seating area for burrs
or fins, which can cause a seal to leak. Damage
to components can result.
3. Apply isopropyl alcohol as a lubricant to the Toric
Ring and place in the seating area. If installation
does not appear smooth, flat and correct, remove
the seal from the spindle and repeat the process.
CAUTION
To prevent slippage of the Toric Ring, allow suffi-
cient evaporation time for the assembly lubricant
before proceeding with further assembly.
Damage to components can result.
4. Seat Toric Ring correctly. Once correctly in place,
the Toric Ring must roll on ramp only. See
Figure 4.24 for examples of incorrect installation.
!
!
!
Figure 4.24
8. Follow the same procedure to install the other half
of the face seal assembly onto the wheel spindle.
Figure 4.22.
Check for Correct Installation of the
TRS Toric Ring Seal
Check the spindle and wheel hub for correct installa-
tion of the TRS Toric Ring face seal before the hub
can be installed onto the spindle.
1. Check assembled height variation (A) in at least
four places, 90 degrees apart, using a caliper,
toolmaker’s rule, or other accurately calibrated
measuring device. The difference in height
around the ring must not be more than 0.5 mm
(0.02 inch).
Figure 4.23.
A
Figure 4.23
Figure 4.22