Grain Systems PNEG-163-08 - Manual (Page 30)

6. User Servicing Instructions and Troubleshooting
30 PNEG-163-08 Centrifugal Fan
Lubrication and Bearings
Bearing grease will lose its lubricating ability over time, not suddenly. The lubricating ability of a grease
(over time) depends primarily on the type of grease, the size of the bearing, the speed at which the bearing
operates and the severity of the operating conditions. Good results can be obtained if the following
recommendations are used in the maintenance program. Type of grease: A high grade ball
or roller bearing grease should be used.
Recommended grease for standard service conditions:
Polyrex EM (Exxon Mobile)
Equivalent and compatible greases include:
Texaco Polystar
Rykon Premium #2
Pennzoil Pen 2 Lube
Chevron SRI.
Lubrication Procedure
Be sure that the grease you are adding to the motor is compatible with the grease already in the motor.
With Grease Outlet Plug
1. Clean all grease fittings.
2. Remove grease outlet plug.
3. Add the recommended amount of grease.
4. Reinstall grease outlet plug.
Without Grease Outlet Plug
This requires disassembly of the motor. Contact local motor shop for assistance.
Volume of Grease to Relubricate Bearings (Teaspoons)
NEMA Frame Size Qty
Up to 210 incl. 2
Over 210 to 280 incl. 3.9
Over 280 to 360 incl. 5.2
Over 360 to 449 incl. 13.4
DANGER
To avoid damage to motor bearings, grease must be free of dirt.