Scotsman NME954 - Manual (Page 29)

To Check the Motor:
1. Remove wires from terminals 1 and 2.
2. Use an ohmmeter to check for continuity. If there
is none, replace the motor only. If there is
continuity but the motor will not start, check the
motor's start switch.
3. Remove motor end bell or motor stator. With
ohmmeter wires attached to 1 and 2 move
centrifugal switch actuator up and down to simulate
motor rotation. If the ohmmeter does not show any
change, replace the switch
or motor. If the ohmmeter
shows an open circuit,
replace the switch or
motor.
To Remove and Repair
the Gear motor
Assembly:
(Assuming that the
procedures through
removal of the water seal
have been performed.)
1. Remove the electrical
wires from the gear drive
motor.
2. Unscrew the 4 cap
screws holding the gear
motor to the base of the
machine.
3. Remove the gear motor
from the Ice Machine.
Bench test the gear motor,
check for oil leaks, noise,
and amp draw.
NME954 & FME1204
May 2001
Page 29
REMOVAL AND REPLACEMENT: Gearmotor
Electrical shock hazard.
Electrical shock can cause
personal injury.
Disconnect power before
beginning to service
components.
Cover & Output
Gear Assembly
Centrifugal
Switch
Auger Drive Motor
Rotor Bearing
Water Shed
To Inspect the gear motor.
A) Remove the cap screws holding the gear motor
case halves together and pry the two cases apart.
B) To lift off the cover, lift up until you can feel
internal contact, then pull the cover towards the
output gear end, and then lift the cover (with drive
motor attached) up and away from the gear motor
case.
Note: The gearcase cover, output gear,
bearings and output shaft are a pressed
together assembly.
C) Inspect the oil gears and bearings. If there is
evidence of water in the oil (rusty metal, too much
oil, white oil) replace the oil and damaged parts.
The oil charge is 14 oz. Do not overfill.
Reassemble and bench test the gear motor, check
for oil leaks, noise, and amp draw.