Warner Electric AT Clutch – Major Service Sizes 25, 55, 115 - Manual (Page 8)

8 Warner Electric • 800-825-9050 819-0324
25. Reinstall the sheave, pulley, or sprocket,
and key.
Reinstall the sheave retainer ring and con-
duit box, if used. Refer to the conduit box
installation instructions.
26. Reinstall the clutch assembly on the shaft,
placing the key in its keyway.
27. Tighten the hub set screws onto the key to
the appropriate torque for your size unit:
Size Torque
25 80 in.-lbs.
55 160 in.-lbs.
115 275 in.-lbs
205 275 in.-lbs.
305 670 in.-lbs.
Assure proper alignment of driving and driv-
en sheave, pulley, or sprocket before tight-
ening set screws.
28. Secure the field by its pin or restraining arm
accessory to avoid rotation.
29. Reconnect the wires.
30. Your AT clutch is now ready for its static
test. Apply DC voltage to the clutch coil
through the clutch control. The armature
should pull against the friction material face
with an audible “click”.