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4.10 MOTOR LUBRICATION (Continued)
Grease relief along shaft can occur, precluding necessity
of removing this plug if inaccessible.The inlet grease gun
fittings and outlet plugs (or spring-loaded reliefs) are
located at each end of the motor housing. The drive end
reliefs protrude out the circumference of the lower portion
of the end bell near a flange bolt. The drive end outlet
plugs are located just behind the flange in the air intake
area at about the 5 or 6 o’clock position.
1) Free drain hole of any hard grease (use piece of wire
if necessary).
2) Use a hand lever type grease gun. Determine in
advance the quantity of grease delivered with each
stroke of the lever. A graduated cylinder showing
cubic centimeters (cc) may be used, or a 35mm film
canister can give a close approximation for 2 cubic
inches when filled.
3) Add the recommended volume of the recommended
lubricant. Do not expect grease to appear at the
outlet, but if it does, discontinue greasing at
once.
4) Run motor for about 30 minutes before replacing out-
let plugs or reliefs. BE SURE TO SHUT MOTOR
DOWN, DISCONNECT POWER, LOCK OUT AND
TAG, AND REPLACE THESE DRAIN FITTINGS TO
PRECLUDE LOSS OF NEW GREASE AND
ENTRANCE OF CONTAMINANTS!
Recommended Motor Grease
60 Hz motors require:
Mobilith SHC 220 (39218193)
Use the grease as indicated on a special grease
information nameplate on the motor. Use of alternative
greases can result in shortened motor life due to
incompatibility of greases. If there is not a grease
nameplate on the motor use:
Chevron Black Pearl #2 (39204292)
(Preferred)
Chevron SRI 2 (39161641)
50 Hz motors require
Esso Unirex N3 (92844729)
MOTOR BEARING MAINTENANCE
(STORED UNITS)
To ensure that complete contact is maintained between
the motor bearings and the bearing grease on units to be
placed in storage for extended intervals, the following
motor maintenance procedure should be adhered to:
1) Prior to placing a unit in storage, rotate the motor
several revolutions by hand in the proper direction of
rotation.
2) Thereafter, rotate the motor as described in Step 1 at
three month intervals until such time as the unit is
placed in service.
3) If the storage time is to exceed a total of nine (9)
months duration, the compressor must be ordered
with long term storage option.
WARNING
!
Hazardous voltage. Can cause
severe injury or death.
Disconnect power before servicing.
Lockout/Tagout machine.