Cleanliness, Condensation drain plugs, Service – Rockwell Automation 1329M AC Induction Motors, 56-5000 Frame, User Manual User Manual

Page 9: Lubrication procedures, Cleanliness condensation drain plugs

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AC Induction Motors

9

2. Frequency: Within 5% above or below the value stamped on the

nameplate.

3. Voltage and Frequency together: Within 10% (providing

frequency above is less than 5%) above or below values stamped
on the nameplate.

Cleanliness

Keep both the interior and exterior of the motor free from dirt, water,
oil and grease. Motors operating in dirty places should be periodically
disassembled and thoroughly cleaned.

Condensation Drain Plugs

All explosion proof and some totally enclosed motors are equipped
with automatic drain plugs, they should be free of oil, grease, paint,
grit and dirt so they don’t clog up. The drain system is designed for
normal floor (feet down) mounting. For other mounting positions,
modification of the drain system may be required, consult
manufacturer.

Service

Important: If motor is nameplated for hazardous locations, do not run

motor without all of the grease or drain plugs installed.

Important: Overgreasing bearings can cause premature bearing and/

or motor failure. The amount of grease added should be
carefully controlled.

Important: If lubrication instructions are shown on the motor

nameplate, they will supersede this general instruction.
Motors are pregreased with a polyurea mineral oil NGLI
grade 2 type grease unless stated otherwise on the motor
nameplate. Some compatible brands of polyurea mineral
base type grease are: Chevron SRI #2, Rykon Premium #2,
Shell Oil Dolium R or Texaco Polystar RB.

Motors are properly lubricated at the time of manufacture. It is not
necessary to lubricate at the time of installation unless the motor has
been in storage for a period of 12 months or longer (refer to
lubrication procedure that follows).

Lubrication Procedures

1. Stop motor. Disconnect and lock out of service.

2. Remove contaminants from grease inlet area.

3. Remove filler and drain plugs.

4. Check filler and drain holes for blockage and clean as necessary.

5. Add proper type and amount of grease. See the Relubrication

Time Intervals table for service schedule and Relubrication
Amounts table for volume of grease required.

6. Wipe off excess grease and replace filler and drain plugs (see

Important statements above).

7. Motor is ready for operation.

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