Warner Electric Gen 2 Ceramic Faced Clutch_Brake UniModule UM-50C, UM-180C - Manual (Page 3)

3 Warner Electric • 800-825-9050 P-273-10 • 819-0532
Mounting to a C-Face Motor
1. A hardened key is provided with the
mounting hardware for Ceramic UniModules.
Insert this key onto the motor shaft. It is
recommended to stake the end of the
motor shaft keyway to keep the key from
moving out during operation.
2. Align the keyway in the bore of the
UniModule to the key in the motor shaft
and slide the unit onto the motor shaft.
The normal alignment of the module to the
motor will be with the wire exit/conduit
box in the upright (12 o’clock) position as
shown in Figure 1.
Do not hammer or force the
module into position. To do so may damage
bearings or cause the friction faces to shift out
of alignment.
Figure 1
If anti-fretting lubricant is used
on the motor shaft for future ease of removal,
ensure that any excess is wiped off before unit
assembly to avoid lubricant contaminating the
clutch or brake friction faces.
3. Secure the Ceramic UniModule to the motor
with the four (4) long mounting tie-bolts
provided. Tighten the four (4) bolts
alternately to ensure even alignment of the
module. Tighten them to 30-35 foot
pounds.
Do not tighten the two (2) clutch
rotor set screws to the shaft before tightening
the four (4) module tie-bolts. This could cause
a preload on the pilot bearing resulting in
premature bearing failure.
4. Next secure the clutch rotor and fan
assembly to the motor shaft by tightening
the two (2) setscrews as follows:
a. There are two (2) access slots on
either side of the UniModule. A long
Allen wrench can be used to tighten
the two setscrews (90° apart) which
secure the clutch rotor and fan
assembly to the motor shaft.
b. Alternately align each setscrew with
one of the access slots by rotating the
clutch rotor and fan assembly through
one of the side vents with a small
screw driver taking care not to damage
the fan. (Figure 2a)
Figure 2a
c. Using a torque wrench and long Allen
socket, tighten the two (2) setscrews
to: (Figure 2b)
• Size 50: 80-85 inch pounds
(Requires 5/32 inch Allen wrench)
• Size 180: 40-45 inch pounds
(Requires 1/8 inch Allen wrench)
Side Vent Access Slots
Set Screws