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Global Brake Series
MI 850A169 1 L
Page 11 of 14
RE-ASSEMBLY
CAUTION
– Loss of torque due to grease or oil.
Re-assembly of the brake must be performed in a clean, dry area. The brake components must be
cleaned with solvent, and must be dry and totally free of grease and oil. Grease or oil on the internal
brake parts will cause loss of torque.
Do not immerse the coil in solvent. This may remove the varnish coating on the magnet wire and result
in a shorted coil.
1.
Install the internal snap rings in the stators.
2.
Press the new powder seals into the left and right stators. The powder seals will bottom out on the internal
snap rings.
NOTE:
The seal lip must face toward the inside of the brake.
3.
Support the rotor on a bench with the cross-drilled holes facing down. 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.
4.
Slide the left stator and powder seal over the thin sleeve until it bottoms on the rotor. Pull the sleeve off the
end of the rotor shaft.
5.
Press one bearing onto the end of the rotor shaft until it seats against the internal snap ring of the left stator.
NOTE:
The seal side of the bearing must face the inside of the brake.
6.
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.
7.
Install the external snap ring on the rotor shaft.
8.
Turn this assembly over.
9.
Install the left side coil gasket.
NOTE:
For Models GBA, GBAM, GBB AND GBBM: Install the coil gasket into the slot in the left stator.
Insure that the coil gasket is evenly seated all the way around the stator slot.
NOTE:
For Models GBC/GBCM, GBD/GBDM, GBE/GBEM and GBF/GBFM: Install the coil gasket into the
slot in the coil bobbin. Insure that the coil gasket is evenly seated all the way around the bobbin slot. Use a
few drops of instant adhesive to keep gasket from moving during assembly.
10.
Place the coil into the left stator with the leads exiting through the slot into the junction box.
11.
Install the right side coil gasket.
NOTE
: For Models GBA, GBAM, GBB AND GBBM: Install the coil gasket into the slot in the right stator.
Insure that the gasket is evenly seated all the way around the stator slot.
NOTE:
For Models GBC/GBCM, GBD/GBDM, GBE/GBEM, and GBF/GBFM: Install the coil gasket into the
slot in the coil bobbin. Insure that the coil gasket is seated evenly all the way around the bobbin slot. Use a
few drops of instant adhesive to keep gasket from moving during assembly.
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.
