Model 600 Spindle Drive service manual, SM600LS2-AG Page 8
Eskridge, Inc. Olathe, Ks. 913-782-1238 www.eskridgeinc.com
Dim A
Installation Process
1)
With the lower half of the rubber toric still wet, use the
installation tool
(9)
to position the seal ring
(1)
and the rub-
ber toric
(2)
squarely against the housing retainer lip
(3)
(as shown).
2)
For smaller diameter seals, use sudden and even pressure
to push the rubber toric under the retaining lip of the housing.
For larger diameter seals, which will not press in with sudden
and even pressure, it is acceptable to work the toric past the
retaining lip by starting on one side and tapping the oppo-
site side of the installation tool with a rubber mallet until it is
engaged past the retaining lip of the housing.
3) Check the assembled height (A) (see below) in
at least four places, 90º apart, using either a cali-
per, tool makers’ ruler or any other calibrated mea-
suring device. The difference in height around the
ring must not be more than 0.04” (1 mm). If small
adjustments are necessary, do not push or pull directly on
the seal ring. Use the installation tool
(9)
to push down
and your fingers to pull up uniformly on the rubber toric
and seal ring.
NOTE: The rubber toric can twist if it is not completely wet
during installation or if there are burrs or fins on the retain-
ing lip of the housing. Twists, misalignments and bulges of
the toric will result in seal failure. If correct installation is
not apparent, remove seal from the housing and repeat the
process.
The rubber toric must never slip on the ramps of either the
seal ring or the housing. To prevent slippage, allow adequate
evaporation time for the lubricant before proceeding with
further assembly. Once correctly in place, the rubber toric
must roll on the ramp only.
4)
Wipe each seal ring face
(6)
using a lint-free wipe. No par-
ticles of any kind are permissible on the sealing surfaces.
(Even a hair is sufficient to hold the seal surfaces apart
and cause a leak.)
5)
Apply a thin film of oil on the entire seal face
(6)
of one or
both seals using a clean finger or lint-free applicator. Oil
must not contact surfaces other than the sealing faces.
NOTE: Mishandling of seals during assembly can cause
immediate leaks or premature failure. Failure can occur due
to curing or tearing of the elastromeric load ring, breakage
of the sealing ring, contamination of the sealing face with
dirt or lint, etc. When assembling metal face seals, please
carefully observe assembly instructions.
Final Assembly
While completing the final assembly of the unit, make sure
that both housings are in correct alignment and are concentric.
Slowly bring the two housings together. High impact can scratch
or break the seal components.
If the rubber toric slips at any location, it will twist, causing the
seal rings to cock. Any wobbling motion of the seal is an indica-
tion of cocked seals and can cause dirt to enter by pumping mud
past the torics.