STEMCO Guardian and Guardian HP(TQM) - Manual

Guardian ® and
Guardian ® HP Seal
Installation
Step 1 Remove all burrs from the hub bore and spindle.
Thoroughly clean the entire wheel cavity. Apply a thin
layer of No. 2 sealant to the OD of the spindle shoulder.
Place the seal assembly on the spindle so the words
“Oil Bearing Side” are exposed to the oil. [Photo 1]
WARNING: Do not install the seal into the hub bore.
Step 2 Using the recommended Stemco Universal Axle Tool,
drive the seal assembly on until the tool bottoms
against the shoulder. [Photo 2] Make sure the ring is
flush with the shoulder. Wipe away any excess sealant.
Step 3 Dip the inner bearing in oil and place on the spindle.
NOTE: The OD of the seal must be coated with a thin coat
of oil. NOTE: When using grease, pre-pack the inner
bearing before placement into the hub.
Step 4 With the wheel mounted on a wheel dolly, carefully
push the wheel onto the spindle until it contacts the
seal. [Photo 3] Dip the outer bearing in oil and place it
on the spindle. NOTE: When using grease, pre-pack the
inner bearing before placement into the hub. Tighten the
inner spindle nut hand tight and remove the wheel
dolly.
Step 5 Tighten the inner nut 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 until the proper oil level is
indicated on the window. 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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INST
ALLA
TION
www.stemco.com
1-800-527-8492