TM 5-3895-374-24-23. LUBRICATIONThe bearings should be greased slightly approximately every 100 hours of operation with the recommended lubricant.NOTEOver greasing will cause the bearings to overheat4.BEARING REMOVAL AND INSTALLATIONThe bearing cartridge assemblies which support the ends of the concentric shafts are made up of a flanged cartridgeor housing and a roller bearing. The bearing is a light press fit in the cartridge and can be installed or removed on anarbor press. The bearing is bottomed against a flange of the cartridge with no shims or clearance allowance required.The bearing bore fits the concentric shaft loosely and this slide-on fit makes cartridge removal and installation easy.The thrust clearances are pre-established by factory machining and no shimming or adjusting of the cartridgeassembly to the housing is required at installation.The clearance in roller bearings is checked by pressing the top roller as far inward as possible and passing a feelergauge back and forth between it and the outer race. If this is done when the vibrator is hot from operation theclearance will more nearly reflect the actual operating condition.NOTEIMPORTANT It is absolutely necessary that the housing and all parts of the vibrator assembly becompletely cleaned and kept free of dirt and contaminants in order to avoid rapid failure for newbearings. If there is a probability of contamination, Improved working conditions should bearranged before the job is attempted. Solvents are recommended for cleaning and flushing.page 3 - 1288
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