STEMCO Voyager and Discover - Manual

www.stemco.com
1-800-527-8492
Voyager ® and
Discover ® Hub-Seal
Installation
Step 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.
Step 2 With the wheel in horizontal position, pre-lube the
inner bearing and place it into the bearing cup.
[Photo 1] NOTE: When using grease, pre-pack the inner
bearing before placement into the hub.
Step 3 Place the seal on the recommended Stemco Installation
Tool, with the correct head, so that the words “Air Side”
face into the tool. Place the tool (with the seal correctly
mounted in the tool head) over the hub bore. Use a 3 to
5 pound hammer to drive against the end of the tool.
Drive seal into bore until complete bottoming is assured.
[Photo 2] Remove Tool. Apply a thin layer of lubricant
on the ID surface of the seal.
NOTE: Do not apply lubricant to the OD of the seal.
Step 4 With the wheel mounted on a dolly, carefully align the
bore with the spindle. [Photo 3] Gently push the wheel
assembly onto the spindle to the proper position. Fill
the hub cavity with lubricant until it runs over the
outer bearing cup. Coat the outer bearing with lubricant
and place it on the spindle and into the bearing cup.
NOTE: When using grease, pre-pack the outer bearing
before placement into the hub.
Step 5 Assemble the inner nut and tighten it to 200 ft/lbs.
[Photo 4] Rotate the wheel several times and then back-
off nut one full turn. Make final bearing adjustment
according to TMC recommended bearing adjustment
procedure. Install the appropriate axle fastener.
Step 6 Install the hub cap with a new gasket and fill the cavity
with lubricant to the proper level. On drive axles, be
sure the differential oil level is high enough
(manufacturer’s recommended level) to ensure oil flow
through the tube to the wheels. It is recommended to
jack-up one side and then the other until flow starts.
Make certain the breather plug is clear. Recheck steers
and trailers to insure proper fill levels.
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