Gearmotor - Scotsman FM2400R Service Manual

FM2400R
REMOVAL AND REPLACEMENT: Gearmotor Assembly
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 oil having a creamy
Charging Procedures
Extra care must be taken when recharging this
remote system. No liquid refrigerant may be
placed in the system at the compressor. DO
RECEIVER
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.
Note: If the gearmotor or the gearcase cover
was replaced, the replacement part MAY
HAVE BEEN shipped with a certain number of
shims. The number of shims used (between
the gearmotor and the drip pan gasket) must
match the number written on the gearcase
cover. If there were no shims on the new
parts, do not use any shims.
4. Bench test the gearmotor, check for oil
leaks, noise, and amp draw.
NOT use the schrader valves at the front of
the unit for weighing in the charge. All liquid
R-502 must be weighed into the receiver
through the "front seated" king valve.
FRONT SEATED
KING VALVE
SERVICE PORT
December, 1988
Page 34
CHARGING
CYLINDER