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4. 1
PREVENTIVE
MAINTENANCE
(
Book
35386598,8/92)
COMPRESSOR
OIL LEVEL
The oil level is most consistent when the unit is RUNNING AT
FULL LOAD and should be checked at this time. The optimum
operating level is midway of the sight tube on the side of the re-
ceiver tank. See the decal beside the sight tube. If the oil level
is not in the "OK" range, make appropriate corrections
(Add or
Drain).·A totally filled sight tube in which the level is not visible
indicates an over-full condition and requires that oil be drained.
AIR CLEANER
This unit is equipped with an AIR FILTERS RESTRICTED
lamp
on the instrument panel, covering both the engine and the com-
pressor. This should
be
checked daily during operation.
If the
lamp glows (red) with the unit operating at full speed, servicing
of the cleaner element is necessary.
Also weekly squeeze the rubber valve (precleaner dirt dump) on
each air cleaner housing to ensure that they are not clogged.
NOTIC E: Holes or cracks downstream of the air cleaner housi ng
will cause the restriction indicators to be ineffective .
.
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