12.07.2015 Views

OL_P1254 Model (1) - TECO-Westinghouse Motor Company

OL_P1254 Model (1) - TECO-Westinghouse Motor Company

OL_P1254 Model (1) - TECO-Westinghouse Motor Company

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(d) If the periods referred to in Table 1 for drive-end bearing and opposite drive-end aredifferent, for the convenience of maintenance operation, please take the shorter one therequired grease replenishment period of these bearings.5.5.1 Kinds of grease:All motors with ZZ bearings will have SHELL Alvania R3 (lithium base grease). All motors withopen bearings will have Polyrex EM (polyurea base grease).Certain T-frame models will utilize special grease and will be noted on the lubrication nameplate.Please us identical grease or its equivalents when maintaining lubrication schedule.ATTENTION!Do not mix different kinds of grease.Mixing grease with different type of thickeners may destroy its composition and physicalproperties. Even if the thickeners are of the same type, possible differences in theadditive may cause detrimental effects.5.5.2 Grease quantityThe amount of grease per replenishment depends on the type, size and construction of thebearings. The maximum amount of one replenishment for each bearing is shown in Table 2.5.5.3 Re-greasingIf re-lubrication is to be performed when the motor is running, stay clear of rotatingparts.It is advisable to re-grease when the motor is running to allow the new grease to be evenlydistributed inside the bearing.Before re-greasing, the inlet fitting should be thoroughly cleaned to prevent any accumulated dirtfrom being carried into the bearing with the new grease. The outlet of grease drainage should beopened to allow the proper venting of old grease.Use a grease gun to pump grease through grease nipple into the bearings. After re-greasing,operate the motor for 10-30 minutes to allow any excess grease to vent out.20

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