Removal And Replacement: Gearmotor - Scotsman NME1250 Service Manual

REMOVAL AND REPLACEMENT: Gearmotor

To Remove and Repair the Gearmotor
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
gearmotor to the gearmotor plate.
3. Remove the gearmotor from the
icemaker.
To Inspect the gearmotor.
A) Remove the cap screws
holding the gearmotor 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 case cover output gear,
bearings, and shaft are one
pressed together assembly.
Replace as a unit.
C) Inspect the oil, gears, and
bearings. If the oil level and
condition is acceptable, quickly
check the gears and bearings.
They are likely to be fine if the oil
is.
If there is evidence of water in the
oil (rusty bearings and gears; the
Electrical Shock
Hazard.
Electrical power can
cause personal injury.
Disconnect electrical
power before beginning.
WATER
SHED
COVER
August 1993
oil having a creamy white appearance; oil level too
high) carefully inspect the bearings and gears. If
in doubt about the condition of a part, replace it.
The oil quantity is 14 fluid ounces, do not overfill.
Note: The gears and bearings are available only
as pressed together sets.
D) After replacing parts as required, (if any)
reassemble the gearcase. The two smaller gears
and the oil should be in the lower case, the output
gear will be with the cover. As you lower the cover
onto the lower case, cover will have to be moved
closer to the second gear after the output gear has
cleared the second gear top bearing.
E) After the case is together, and the locating pins
are secure in both ends, replace all cap screws.
4. Bench test the gearmotor, check for oil leaks,
noise, and amp draw.
Page 27
NME1250
MOTOR
BEARING
SEAL
FIRST GEAR
SECOND GEAR
GASKET
GEAR CASE