- 33-
(2)Inspection and Replacement of the Lubricating Oil of the Engine
Function of lubricating oil to the engine: reduce friction, increase sealability, cool parts, clean parts,
anti-rust and so on.
Oil filter screw plug
3nuts
Filter cover
Upper scale line
Lower scale line
Figure15 Inspection of the Lubricating Oil
Oil drainage screw bolt
Lubricating oil with poor quality, long-term use and insufficient lubricating oil quantity and so
on
will
accelerate
engine
parts
wear
and
reduce
engine
service
life
;
or
even
result
in
excess
temperature
of
the
e
ngine
,
wear
or
burning
of
the
clutch
,
reduced
power
,
abnormal
sound
,
burning
of
the
lubricating
oil
and
so
on
.
When selecting the lubricating oil
:
Refer to
“
Selection of Lubricating Oil
”.