LEESON AC Induction Motors - Manual

Lubrication
This motor is supplied with pre-lubrication ball bearings. No lubrication required before start up.
Relubrication Intervals
The following intervals are suggested as a guide:
Lubrication
Use high quality ball bearing lubricant. Use consistency of lubricant suitable for class of insulation stamped on
nameplate as follows:
Procedure
If motor is equipped with Alemite fitting, clean tip of fitting and apply grease gun. Use 1 to 2 full strokes on
motors in NEMA 215T frame and smaller. Use 2 to 3 strokes on NEMA 254T thru NEMA 365 T frame. Use 3
to 4 strokes on NEMA 404T frames and larger. On motors having drain plugs, remove drain plug and operate
motor for 20 minutes before replacing drain plug.
On motors equipped with slotted head grease screw, remove screw and apply grease tube to hole. Insert 2 to
3 inch length of grease string into each hole on motors in NEMA 215T frame and smaller. Insert 3 to 5 inch
length on larger motors. For motors having drain plug and operate motor for 20 minutes before replacing drain
plug.
CAUTION: Keep lubricant clean. Lubricate motors at standstill. remove and replace drain plugs at standstill. Do
not mix petroleum lubricant and silicone lubricant in motor bearings.
Lubrication Instructions
For Ball Bearing Motors
H.P. RANGE
Sub Fractional to 7 1/2
10 to 40
50-200
Sub Fractional to 7 1/2
10 to 40
50 to 200
All
Sub Fractional to 40
50 to 200
SUGGESTED RELUBRICATION INTERVALS
HOURS OF SERVICE PER YEAR
5,000
Continuous Normal Applications
Season Service Motor
Idle 6 Months or More
Continuous High Ambients
Dirty or Moist Locations
High Vibrations
Where Shaft End is Hot (Pumps-Fans)
RELUBE INTERVAL
5 Years
3 Years
1 Year
2 Years
1 Year
9 Months
1 Year
(Beginning of Season)
6 Months
3 Months
300-088.02
CONSISTENCY
Medium
LUBRICATION CONSISTENCY
INSULATION
CLASS
B & F
F & H
TYPICAL
LUBRICATION
Shell Dolium R
and/or
Chevron SR1 2
FRAME
TYPE
Sub Fractional
to 447T
All
TYPE
Polyurea