Thrush Horizontal Water CCirculators - Manual (Page 2)

To Remove and Reinstall Motor
HORIZONTAL WATER CURCULATOR
1. Turn off the electrical current and disconnect wiring to motor.
2. Loosen set screw "B".
3. Loosen machine screw "E" and remove motor clamp.
4. Loosen four bolts "G" and pull cradle slide back far enough to disengage motor mounting ring
from bracket.
5. Lift motor out of cradle.
6. When replacing motor, loosen set screw "C" and slide coupling off the old motor shaft. Fasten
the spring coupling to the new motor by tightening set screw "C" on flat of motor shaft.
Coupling should be within 1/8" of motor face.
7. Set new motor in cradle, push motor forward guiding motor mounting ring into register in the
bracket and impeller shaft into the spring coupling. Motor must be to bottom of register for
proper alignment. Tighten four bolts "G", reinstall motor clamp and tighten machine screw "E".
8. Stretch spring coupling approximately 1/8" toward casing. CAUTION: Spring coils should not
touch, as this will result in excessive noise. Tighten set screw "B" on flat of impeller shaft.
9. Rewire motor and turn on the electrical current. If installing new motor, fill motor oil cups with
S.A.E. #20 non-detergent oil.
Peru, IN 46970 (765) 472-3351
www.thrushco.com
Thrush Co., Inc.
P.O. Box 228 * 340 West 8th St.