GSI Group X Series Sweep, Operator'S Manual

Page: 34 / 80

7. Maintenance
34 PNEG-1858 12" and 16" “X” Series Sweep
Lubrication
A. Lubrication - Electric Motors
Electric motors supplied for use on “X” Series Sweeps are properly lubricated at the time of
manufacture. It is not necessary to lubricate them at the time of installation unless the motor has been
in storage for one year or longer. Some motors may be factory lubricated and sealed for the life of the
bearings. Overgreasing the bearings can cause premature failure of the motor. The amount of grease
added must be carefully controlled.
B. Procedure for Lubrication of Electric Motors
1. Stop motor. Disconnect and lock out all power sources.
2. Follow all safe bin entry procedures and wear all required personal protective equipment.
3. Remove contaminants from grease inlet area.
4. Remove filler and drain plugs.
5. Check filler and drain holes for blockage and clean as necessary.
6. Add proper type and amount of grease. According to manufacturers recommendations. Too
much grease or injecting grease too quickly can cause premature bearing failure. Use
approximately one minute to slowly inject the recommended amount of grease.
7. Wipe off excess grease and replace filler and drain plugs. Do not run motor without the grease
and drain plugs installed.
NOTE: It is very important to keep the grease clean. Mixing dissimilar grease is
not recommended.
C. Type of Lubrication
A polyurea mineral oil NGLI grade 2 type grease is to be used for lubrication of the electric motors.
Grease meeting this specification include:
D. Frequency of Lubrication
Motors should be lubricated after storage of one year or more or at the beginning of each season.
Refer to manufacturer recommendations for amount of lubricant to use.
1.) Chevron SRI #2
2.) Exxon-Mobile Polyrex EM
3.) Texaco Polystar RB