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 TM 55-1905-219-14-5
3-68.
BLOWER - MAINTENANCE INSTRUCTIONS (Cont).
g. LUBRICATION
(1) Oil drains from the valve operating mechanism on the cylinder head into the camshaft pocket in the cylinder block; then,
when it reaches a certain level, the oil flows from the pocket into cavities at the upper corners of the blower and through passages in
the blower and end plates to lubricate the bearings, governor and water pump drives at the front end, and bearings and gears at the
rear end of the blower. A slinger attached to the front end of the lower rotor shaft throws oil onto the front roller bearings and governor
weights. A dam in the blower end plates maintains oil at a level adequate to submerge the lower portion of the slinger and the driven
gear.
(2) Surplus oil overflows the dams in the end plates and returns through two drilled holes in the cylinder block to the engine
3-1235
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