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11
7 – LUBRICATION
DRUM SEAL HOUSINGS
Drum seals are provided on each end of the drum where the mixing shaft passes through
to the bearings. It is important to pump grease into the housings through use to retain
seal efficiency. Use enough grease to flush out old grease and carry away any grit. Use
lithium based grade 2 multi-purpose grease. SEE FIGURE 3
MIXING SHAFT BEARINGS
The mixing shaft bearings are permanently factory sealed and lubricated, and should not
require further service.
WHEEL BEARINGS
Wheel bearings should be packed once a year. Thoroughly clean old lubricant from the
bearings, hub and spindles before repacking. Pack bearings only one-half to two-thirds
full with grease to prevent overheating. Use no. 2 wheel bearing grease.