Lubrication - frames l180 - l440 – Rockwell Automation 1329L AC Induction Motors User Manual User Manual
Page 17
AC Induction Motors
17
Table H
Relubrication Periods - Frames L180 - L440
1
Maximum speed occupying more than 30% of operating time.
2
For Tandem drives increase frequency of lubrication by multiplying values by 0.8.
Lubrication - Frames L180 - L440
These motors are designed to route new grease directly into the
bearing. The relubrication periods shown in
are offered as a
guide for varying service conditions, speeds, bearing types and
operating hours.
Important: Certain special motors may have a lubrication instruction
plate permanently attached. These specific lubricating
instruction must be followed.
Lubrication Procedure
1. Relubrication with the shaft stationary and a warm motor is
recommended. If lubrication must be done with the motor
running, stay clear of rotating parts and electrical circuits.
2. Locate the grease inlet at the top of the bearing hub, clean the
area and replace the 1/8 inch pipe plug with a grease fitting (if the
motor is not equipped with a grease fitting).
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
. This amount of grease will provide
an ample supply of lubricant between lubrication periods as
determined from
for the service condition listed in
.
Maximum Normal
Operating Speed (RPM)
1
Frame
Relubrication Interval (Months)
Standard
Service
Severe
Service
Extreme
Service
3450 and higher
All
9
4
1
2400 - 3449
L180 - L250
24
9
3
L280 - L440
9
3
1
1700 - 2399
L180 - L320
36
12
3
L360 - L440
18
6
2
UL360 - UL440
9
3
1
800 - 1699
L180 - L320
36
24
8
L360 - L440
36
12
3
UL360 - UL440
9
6
1
500 - 799
L180 - L320
48
36
12
L360 - L440
36
24
8
UL360 - UL440
18
12
4
499 and lower
L180 - L440
48
36
12
UL360 - UL440
24
18
6
!
ATTENTION: If relubrication is done while motor is
running, stay clear of rotating parts. Failure to observe this
precaution could result in personal injury.