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4.9
PREVENTIVE MAINTENANCE·
(Book 35386598,8/92)
I
WARNING
I
High
pressure
air
can
cause
severe
injury
or
death from hot oil and fly-
ing parts.
Always relieve
pressure before removing
caps,
plugs,
covers
or
other parts from pressur-
ized air system.
1. Open
the
service
air
valve(s) to ensure that sys-
tem is relieved of all pres-
sure.
Close
the
valve(s).
2. Turn the spin-on filter ele-
ment counterclockwise
to re-
move it from the filter housing.
Inspect the filter element and
then discard.
NOTICE
If there is any indication of
formation
of
varnishes,
shellacs
or lacquers
on
the oil filter element, it is a
warning
the compressor
lubricating
oil has improp-
er
characteristics
and
should
be
immediately
changed.
See Section 5 -
Lubrication.
3. Inspect filter gasket
contact
area for cleanliness
and darnage.
Clean or repair as necessary.
4. Install new filter by turning ele-
ment
clockwise
until
gasket
makes initial contact. Tighten an
additional 1/2 to 3/4 turn.
5. Start unit and allow to buildup to
rated pressure.
Check for leaks
before
placing
unit
back
into
service.
FASTENERS
Visually
check entire unit in regard to
bolts. nuts and screws being properly se-
cured.
Spot check several capscrews
and nuts for proper torque.
If any are
found loose, a more thorough inspection
must be made. Take corrective action.
COMPRESSOR
OIL
The lubricating and cooling oil must
be
re-
placed every six (6) months or on an
hours
of operation
basis,
whichever
comes first, as follows: Refer to Section 5
- Lubrication for detailed instructions and
specifications.
QEM_
<
450
z
450
HOURS
500
1000
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