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D. Oil Leak Inspection
If a shaft drive component is suspected of leaking oil, first thoroughly clean the entire machine.
The apparent location of an o il leak on a dusty machine may be misleading. Dry the machine and
apply a leak-localizing compound or a dry-powder spray deodorant that will limit the flow o f any
leaking oil. Operate the machine prepared in this way for the distance necessary t o percisely
locate the leak. There are the possibilities that a component housing may have been damaged b y
road debris or an accident, or a gasket or seal may be cracked or broken. However, on new or
nearly new machines an apparent oil leak may be the result o f a rust-preventive coating or excess
assembly lubrication of seals. Always clean the machine and recheck the suspected location of
any apparent leakage.
Oil Seals and Gaskets
E. Checking Drained Oil
Whenever a problem is suspected in either the middle or final gear assemblies, drain and inspect
the oil. Metal particles on the drain plug or in the oil could indicate a bearing seizure or other
problem i n the component. However, a small amount of metal particles in the oil is normal.
Rubber seal
(Drive
shaft
housing
no
swing arm contains
in
oil)
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