Warner Electric Gen 2 Clutch_Brake UniModule UM-50, UM-100, UM-180 - Manual (Page 7)

Through this window, you will be looking between
the two armatures of the clutch and brake.
(Figures 6 & 7)
If either armature is too far away from its mating
friction suface, it is possible to move it back into
adjustment using a flat blade screwdriver.
(Figure 8)
Note: When resetting the clutch or FB brake
armature airgap, both the clutch and brake must
be released (the brake energized, and the clutch
not energized).
This is a three step process.
1. Simply slide the screwdriver through the
window. By twisting the screwdriver, it works
as a wedge to apply pressure on the back of
the armature pushing it toward its mating
friction surface.
2. Rotate the output of the unit. The rotor and
window should stay in place when you do
this. Only the armatures will move.
3. Alternately repeat steps 1 & 2 to ensure that
the airgap between the armature and its
mating surface is about 1/32 inch and that
the armature remains square to its mating
surface. (If the armature is uneven, it may
engage on just one side giving the appear-
ance of engagement but failing to provide full
torque.)
If there is a scraping or rubbing sound when
the output shaft is rotated, this means that an
armature is dragging and is too close to its mating
surface. Simply repeat steps 1-3 above, but place
the screwdriver between the face of the armature
and its mating friction surface.
Warner Electric • 800-825-9050 P-273-4 • 819-0528 7
Figure 6
Figure 7
Figure 8