Warner Electric AT Brakes & Clutches Complete Brake Repair – On the Shaft, Sizes 25, 55, 115 - Manual (Page 3)

3 Warner Electric • 800-825-9050 P-1406 • 819-0335
6. Insert two new friction material segments. The
recessed holes should be facing away from
the magnet body.
7. Attach the new friction material segments to
the brake magnet or clutch rotor with the
screws through the appropriate access holes.
Apply one drop of Loctite
® (grade AA or
equivalent) to each screw.
Note: Use only the screws included with
the repair kit since any other screws may
damage the unit. Tighten screws to 18 to
22 inch pounds torque.
8. Insert the two new armature segments.
9. Attach the new armature segments to the
cast iron carrier with hex head capscrews,
lock washers and washers. Apply one drop
of Loctite (grade AA or equivalent) to each
screw. Tighten to the appropriate torque for
your size unit.
Size Torque
AT 25 29-35 in.lbs.
AT 55 60-84 in.lbs.
AT 115 60-84 in.lbs.
10. Reset the Autogap ™ by pressing the
armature toward the magnet or rotor.
11. Your AT clutch or brake is now ready for its
static test. Apply DC voltage to the coil
through the control. The armature should
pull against the friction material face with an
audible “click.”
12. Run the brake or clutch under its operating
load.
13. Your AT brake or clutch may not achieve
its full torque until after a short “break-in”
period. To break in, cycle it on and off under
full load at operating speed a minimum of
ten times in quick succession.
Your AT brake or clutch is now ready to run.