3-8
CHAIN AND CHAIN SHEAVE LUBRICATION
The chains and chain sheaves should be lubricated every 250 hours. Chain sheaves have
lubricated bearings and can be reached with the boom retracted or fully extended as shown
below. Use all-purpose grease in a grease gun. The boom must be fully extended and
horizontal to lubricate the chains. The extension chains are exposed under the bottom of
the boom. A series of access windows exposes the retraction chains. Lubricate the chains
with 30-weight engine oil by either spraying or brushing. Do not attempt to grease chain
shafts or oil chains inside the boom with engine running. The boom may move while your
hands are inside. Relieve any trapped pressure by cycling the control valve with the engine
off.
Courtesy of Crane.Market
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