Proofer Motor Assembly, How To Replace; Fig. #10 ..................................... Proofer Motor Assemblies - Nu-Vu SUB-123 Owner's Manual

SUB–123 OWNER'S MANUAL
B. Move the weight 4 to 6 vanes in either direction. Run the Motor again. Note any change in
vibration. If the vibration increased move the weight in the opposite direction. If the vibration
decreased move the weight in the same direction another 4 to 6 vanes. Repeat this procedure until
the vibration begins to increase.
C. Move the weight back 1 or 2 vanes at a time until the vibration is at its lowest level. Secure it
there.
D. Repeat the entire procedure with more weights until the vibration is eliminated. Make sure that all
weights are securely fastened to the inside of the air vanes before closing up the Oven. Failure to
do this may cause the loss of a weight, resulting in an unbalanced condition.

PROOFER MOTOR ASSEMBLY, How to Replace:

MAKE SURE ALL POWER TO THE UNIT IS OFF. FAILURE TO DO SO MAY CAUSE
SEVERE EQUIPMENT DAMAGE OR PERSONAL INJURY!
Fig. #10 – Proofer Motor Assemblies
A. Remove the Proofer Element Cover [62 or 88] to expose the Proofer Fan [61] or Blower Wheel
[86]. Loosen the set screw on the Fan hub, and remove the Fan or Wheel from the Motor shaft.
B. Remove the four screws holding the Motor Mount in place. Use a pocket knife or other sharp
instrument to cut loose the sealant around the Motor Mount. If necessary, gently pry up on the
Motor Mount to break it loose from the floor of the Proofer.
C. Remove the Proofer Motor Assembly [14] far enough to expose and disconnect the wire nut
connections. These wires are interchangeable and do not need to be labeled. Remove the Motor
Assembly from the Proofer.
D. Remove all old sealant from the floor of the Proofer with a putty knife or scraper.
E. Connect the electrical leads to the new Motor Assembly. Make sure all connections are clean and
tight.
F. Lower the Motor Assembly into place and fasten it securely with the four mounting screws.
G. Apply a bead of silicone sealant (available at any plumbing or hardware store) around the edges of
the Motor Mount. Smooth it down with your finger. Remove any excess sealant, but make sure
that the entire edge of the Motor Mount is completely sealed to prevent any water from leaking
from the Proofer onto the new Proofer Motor.
H. Replace the Fan or Wheel on the Motor shaft. Tighten the set screw securely; a loose Fan or
Wheel will cause a later service problem.
I. Restore electrical power to the unit and test the new Proofer Motor Assembly for proper operation.
Make sure the Fan or Wheel does not drag on the floor of the Proofer.
J. Replace the Proofer Element Cover and retest the Proofer Motor Assembly. Make sure the Fan or
Wheel does not drag on the underside of the Element Cover.
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NU-VU FOOD SERVICE SYSTEMS
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SERVICE AND REPLACEMENT GUIDE
MENOMINEE MICHIGAN 49858-0035
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