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INSTALLATION AND SERVICE MANUAL 917N-CMT, 927CMT, 957CMT
184617-02
5. DRAINING OIL – Open oil drain plug(s).
Drain oil with speed reducer at normal
operating temperature.
6. PROPER OIL LEVEL – Fill until oil is at
the bottom of the threads in the oil level
plug hole.
7. INSPECTION – When changing oil,
always inspect all areas around the
reducer for traces of oil. If oil is
found in the immediate area, repair
the leak (usually an oil seal) and
check for proper oil level.
11.2 Condenser Cleaning
CAUTION
To avoid electrical shock or
contact with moving parts,
make sure all switches are
in the “OFF” position and
the main power supply is
disconnected. Some
freezers have more than
one disconnect switch.
A. Air Cooled Condensers
At least once a month, the face area of
the condensers should be inspected for
accumulation of dirt and dust. Surface
dirt and dust can usually be removed
with a stiff brush and/or vacuum cleaner
or compressed air. After brushing, hold a
light between the fan blades and look
through the condenser from the opposite
side. This procedure will locate those
areas where accumulated dirt has
lodged between the condenser fins.
When using compressed air:
1. Place a damp towel or cloth over the
face area of the condensers.
2. Blow dirt through the clogged areas
of the condenser into the damp
towel.
B. Water Cooled Condensers
Depending on water conditions, the
condenser may require cleaning. Usually
a restricted flow of water resulting in a
high head pressure indicates a dirty
condenser. Flush the condenser with a
commercially available condenser
cleaner suitable for use on copper and
rubber components.
C. Beater and Condenser Fan
Motor Inspection
CAUTION
To avoid electrical shock
and contact with moving
parts, make sure all
selector switches are in the
“OFF” position and that the
main power supply is
disconnected. Some
freezers have more than
one disconnect switch.
The beater and fan motors do not
require lubrication but should be in-
spected and cleaned annually.
Figure 11-1 Gear Reducer
11.1 Gear Reducer Lubrication Instructions –
continued