Rockwell Automation 1325L DC Motors, Frames C210ATZ - C440ATZ - Manual (Page 18)

18 DC Motors
3. Remove grease drain plug located opposite the grease inlet.
4. Using a manual grease gun, pump in the recommended grease in
the amount shown in Table G . This amount of grease will provide
an ample supply of lubricant between lubrication periods as
determined from
Table I for the condition listed in Table H .
Use Chevron SRI-2 grease or equivalent unless motor nameplate
specifies special grease. Use only clean, fresh grease from clean
containers and handle carefully to keep it clean.
In general, mixing of greases is not recommended. If an
incompatible grease is used, the lube system must be repacked
completely with the new grease.
5. Wipe away any excess grease at the grease drain or relief and
replace drain plugs.
Repacking Bearings or Greasing New Bearings
When existing bearings have been completely cleaned of old grease
or when bearings are replaced, use this procedure for packing the
bearing.
1. Apply one bead of grease around the inboard side of the bearing,
between bearing and inner cap. Assure that grease adheres to
balls or rollers.
2. Apply one bead of grease around outboard side of bearing,
making sure grease adheres to balls or rollers.
3. Completely fill grease inlet and outlet passage holes with grease.
4. Fill outboard bearing cavity 60% to 90% full of grease.
5. If possible, rotate shaft of assembled machine at least three
revolutions by hand to distribute grease within bearings before
starting motor.
Bearings
These motors are designed to provide a mounting for anti-friction
bearings to give:
• Maximum protection to windings and interior of machine by
preventing grease leakage from bearing housing.
• Maximum protection to bearings against excess lubricant,
insufficient lubricant, dirt and moisture.
Various types of anti-friction bearings are used in the wide range of
frames as needed to meet specific load, speed and service
requirements.
!
ATTENTION: To guard against personal injury or death
from rotating parts or electrical shock, relubrication should
only be performed while the motor is stationary and
disconnected from the power source.