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12.
Support the left stator assembly on a bench with the cross–drilled holes facing up. Wrap a 6" x 6"
(152 mm x 152 mm) piece of stiff paper, thin plastic, or shim stock around the rotor shaft, forming a
sleeve. This will allow the powder seal to slide over the end of the rotor shaft and the external snap
ring groove. Slide the right stator and powder seal over the thin sleeve until it bottoms on the left
stator assembly. Pull the sleeve off the end of the rotor shaft.
13.
Install the three (four) stator screws, split lockwashers, and nuts loosely.
NOTE: The long stator screw should be installed 180° from the junction box.
14.
Press the other bearing onto the end of the rotor shaft until it seats against the internal snap ring of
the right stator.
NOTE: The seal side of the bearing must face the inside of the brake.
15.
Tighten the stator screws evenly until the left and right stators are clamped together.
16.
Apply 2 or 3 drops of wicking Loctite to the inner and outer race of both bearings. Wait ten seconds
and wipe off the excess Loctite.
17.
Install the other external snap ring on the rotor shaft against the bearing. This step is made easier
by supporting the brake on the opposite end of the rotor shaft.
NOTE: Insure that the right bearing is seated against the internal snap ring before attempting to
install the external snap ring.
18.
Manually rotate the rotor shaft to insure smooth operation of the rotating parts.
19.
Place the brake on a clean piece of paper. Support the brake at 45° so that the cross-drilled holes
are facing up. Fill the brake with all of the magnetic powder supplied in the repair kit. While filling,
slowly rotate the rotor to evenly distribute the magnetic powder.
NOTE: Collect any spilled magnetic powder from the clean paper and pour it into the brake.
20.
Install the powder fill screw (and washer for GBA, GBAM, GBB & GBBM only) into the right stator.
All other models have a blind rivet.
5
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