Gear Motor; Shaft Seal Installation And Replacement (Figure 7) - Cornelius IMD Series Installation Manual

Countertop Icemaker IMD Series Installation Manual
G M
EAR OTOR
The gear motor is equipped with a start relay and a manual reset overload. When current is applied, the
relay energizes and completes the circuit to the start winding. The motor reaches a predetermined
speed and the relay drops out, disconnecting the start winding. The run winding remains in the circuit as
long as current is applied.
The purpose of the overload is to automatically shut off the motor in the event of a mechanical bind of the
transmission, an overload condition within the evaporator or an electrical malfunction. It does this by
sensing amperage draw. If the motor stalls the start relay would energize and stay energized. The
amperage would surge to 5 to 6 times greater than normal draw. In this event the overload would shut off
the transmission in 4 to 8 seconds.
If the motor is subjected to an abnormal load, but does not reach stall condition, the overload will react,
but over a greater period of time. The reaction time depends upon the amperage to which it is subjected.
The overload, through the safety circuit, also shuts off the compressor.
Refer to Troubleshooting Guide.
FIGURE 7. IMD 300 SHAFT SEAL
S S I
HAFT EAL NSTALLATION AND
1. Place shaft seal locator seat over gear motor output shaft, embossed side down, and push down
until shaft seal seat rests flush on top of gear motor.
2. Place rubber coated ceramic seal (important: ceramic face up) over output shaft and push down
until seal rests on top of the shaft seal seat. (Lubricate rubber on ceramic seal with [#06195] rubber
lubricant.)
3. Place shaft seal with carbon face down (spring up) over output shaft and push (gently) downward
until seal rests on carbon face of output shaft seal.
4. Push down on the washer compressing the spring on the output shaft seal. While holding the seals
(down) in place slide the E-ring into the groove on the output shaft.
Publication Number: 638085277INS
FIGURE 8. AUGER AND EXTRUDING HEAD REMOVAL
R (FIGURE 7)
EPLACEMENT
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