Fan Motor Assembly - Scotsman NM1850 Manual

NM1850
REMOVAL AND REPLACEMENT
Note: The gearcase cover, output gear,
bearings and output shaft are a 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
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.
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, the
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 gearcase cover or the gearmotor
was replaced, the replacement part MAY
HAVE BEEN shipped with a certain number of
shims. The number of shims used must
match the number written on the gearcase
cover. If there is no number written on the
cover, and no shims were received with the
new part, do not use any shims. Do not use
the old shims.
Bench test the gearmotor, check for oil leaks,
noise, and amp draw.
Removing Condenser Fan Motor Assembly
/////////////////////////////WARNING//////////////////////////
Disconnect all electrical power to the
machine before begining.
/////////////////////////////////////////////////////////////////////////
1. Remove the top panel.
2. Unplug the two fan motor wire leads from
the fan motors.
3. Remove two hex head bolts from top end of
fan motor assembly, (see the illustration).
LOCATING
PINS
4. Lift up, and pull out the fan motor assembly.
5. Repair as needed.
6. To reassemble: Place the fan motor
assembly lower flange holes over the two
allen head cap screws in the base, and
reinstall the hex head bolts at the top of the
assembly. Plug the fan motors back in, and
replace the top panel.
May, 1989
Page 30
CAP SCREWS
FAN
MOTOR
WIRE
FAN MOTOR
ASSEMBLY