TM 10-4610-232-12
e. Check inner bore and outer tapered face of hub (22) for rust, corrosion or dirt. Use fine emery cloth to remove it.
f. Check the motor shaft for corrosion and dirt and clean with fine emery cloth.
REASSEMBLY.
a. Tap motor shaft key (24) into the groove provided on the motor shaft.
b. Slide sheave (23) onto the motor shaft making sure the side marked, faces the motor.
c. Remove capscrews (19) from the threaded holes of hub (22).
CAUTION
Do not tap the screwdriver or chisel too hard or the hub will break.
d. Tap a screwdriver or chisel into the split line of hub (22) just far enough to allow it to slide onto the motor shaft.
Slide the hub to the position marked by scribe marks during disassembly.
e. Install and tighten setscrew (21). Slide sheave (23) onto hub (22) as far as it will go and align threaded holes in
sheave (23) with non-threaded hole in hub (22).
f. Install capscrews (19) and Iockwashers (20) through hub (22) into sheave (23). Tighten the capscrews hand tight.
g. Evenly and alternately tighten capscrews (19) to pull sheave (23) onto hub (22). Torque to 720 inch pounds using a
torque wrench.
h. Pack the threaded holes in hub (22) with grease to prevent corrosion.
i. Slide nut (12), washer (13), and bushing (14) on cables (1).
j. Screw fitting (15) into the motor conduit box.
k. Insert cables (1) (one at a time) through fittings (15) and into the motor conduit box. Tighten nuts (12).
l. Connect the cable leads to motor leads as shown and secure with capscrews (16), Iockwashers (18) and nuts (17),
m. Varnish all connections and tape the connections with friction tape, electrical tape and tie with twine as shown.
n. Connect two cables (1) to junction box (2) and secure with clamps (8). Secure clamps with screws (3), (4)
DELETED, washers (5), washers (7) and locknuts (6).
WARNING
Do not attempt to change electrical connections as described below with power
applied to the motor. Serious injury or death could occur.
o. Check motor rotation when started. It must be counterclockwise when viewing the sheave end of the motor. If it IS
not correct, shut down the motor and check for correct connections.
p. To reverse rotation, interchange the T1 and T2 connections in the motor electrical box.
4-300 Change 2
