Maintenance And Adjustments; Gear Reducer Lubrication - H.C Duke & Son 959R Operator’s Manual With Illustrated Parts List

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10

Maintenance and Adjustments

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10.1 Gear Reducer Lubrication Instructions
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The gear reducers are heavy duty ,
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worm-geared units manufactured to H.
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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 C. Duke & Son, Inc. specifications. The
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1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 following lubrication procedures should
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be followed.
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DO NOT overfill. Overfilling can
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damage the gear reducer.
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1.
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2.
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184981-02
CAUTION
All maintenance and
adjustments must be done
by an authorized service
technician.
CAUTION
To avoid electrical shock
and contact with moving
parts, make sure all
switches are in the "OFF"
position and that the main
power supply is
disconnected. Some
freezers have more than
one disconnect switch.
IMPORTANT:
OIL – Each gear reducer is charged
with a special oil and will not mix
with other types of oil. When adding
or changing oil always verify the
specific oil used by referring to the
nameplate located on the gear
reducer.
OIL CHANGING – Under normal
conditions, the oil should be
changed after every 2500 hours of
INSTALLATION AND SERVICE MANUAL 959R
operation, or every six months,
whichever occurs first.
3. OVERFILLING OR UNDERFILLING
– If a gear reducer is overfilled with
oil, the energy used in churning the
excessive oil can result in overheat-
ing. If the gear reducer is underfilled,
the resultant friction can cause
overheating. If underfilling occurs, fill
the gear reducer to the oil level plug
hole.
NOTE: Normal operation can generate
temperatures up to 200°F (93°C). If
overheating occurs due to overfilling, shut
down the drive, remove the oil level plug
and allow excess oil to drain. Reinst all the
oil level plug, and rest art the drive.
4. DRAINING OIL – Open oil drain
plugs. Drain oil with speed reducer
at normal operating temperature.
5. PROPER OIL LEVEL – Fill until oil
is at the bottom of the threads in the
oil level plug hole.
6. INSPECTION – When changing oil,
always inspect all areas around the
reducer for traces of oil. If oil is
found in the immediate area, rep air
the leak (usually an oil seal) and
check for proper oil level.
CAUTION
To avoid electrical shock
and contact with moving
parts, make sure all
switches are in the "OFF"
position and that the
main power supply is
disconnected. Some
freezers have more than
one disconnect switch.
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