Warner Electric AT Brake–Major Service Repair Instructions for Sizes 25, 55, 115 - Manual (Page 8)

8 Warner Electric • 800-825-9050 P-1405 • 819-0325
21. Reconnect the wires.
22. Your AT brake is now ready for its static test.
Apply DC voltage to the coil through the brake
control. The armature should pull against the
friction material face with an audible click.
23. Run the brake under its operating load.
24. Your AT brake might not achieve its full torque
until after a short “break-in” period. To break in
the brake, cycle it on and off under full load at
operating speed a minimum of ten times in
quick succession. (See note)
Your AT brake is now ready to run.
Note: Your application may require more
cycles to achieve full torque due to load and
RPM.
19. Tighten the hub set screws, on the shaft and
key per the following torque specifications:
Size Torque
25 80 in.lbs.
55 160 in.lbs.
115 275 in.lbs.
20. Secure the torque arm to the brake. The
torque arm attachment must be flexible
enough to compensate normal shaft and
bearing runout without causing binding or side
loading to the brake.