Gearmotor - Scotsman NM1850RH 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.
SEAL
GEARCASE
If there is evidence of water in the oil (rusty
bearings and gears; the 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 16 fluid ounces, do not overfill.
Note: The gears and bearings are available
only as pressed together sets.
MOTOR
BEARING
GASKET
May, 1989
Page 25
NM1850RH
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.