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Book 35393560 (12/02)

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Make sure that all clamps and flange joints are tight.

COMPRESSOR OIL FILTER ELEMENTS

The compressor lubrication and cooling oil system
includes dual spin--on, throw away type oil filters, each
with an internal bypass valve. With a clean, new filter
element, all of the oil flows through the full element
area, from the outside/inside. As each element
becomes contaminated with dirt, a pressure
differential is created in the filter housing between the
oil inlet and outlet ports. As this differential
approaches 25 psi (175 kPa), the bypass valve starts
to open, thus permitting a small quantity of oil to
bypass the filter. As the contaminants continue to build
up, more and more of the oil bypasses the filter media
itself.

This does not provide any filtration but does allow a
maximum flow of compressor lubricating and cooling
oil to preclude any possible damage from loss of oil.
Also the design of the filter prevents any washing--off
of any dirt during oil bypassing.

NOTICE

The oil filter must be replaced every 500 hours of
operation. On new or overhauled units, replace
the element after the first 50 and 150 hours of op-
eration; thereafter, service the oil filter every 500
hours.

To service the oil filters, it will first be necessary to shut
the unit down. Wipe off any external dirt and oil from
the exterior of the filter to minimize any contamination
from entering the lubrication system.

WARNING

High pressure air can cause serious injury or
death from hot oil and flying parts. Always relieve
pressure before removing caps, plugs, covers or
other parts from pressurized air system.

1. Open the service air valve(s) and manual
blowdown valve to ensure that system is relieved of all
pressure. Close the valve(s).

2. Turn the spin--on filter element counterclockwise
to remove 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 improper
characteristics and should be immediately changed.

3. Inspect the oil filter head to be sure the gasket
was removed with the oil filter element. Clean the
gasket seal area on the oil filter head.

Installing a new oil filter element when the old gasket
remains on the oil filter head will cause an oil leak and
can cause property damage.

4. Lubricate the new filter gasket with the same oil
being used in the machine.

5. Install new filter by turning element clockwise until
gasket makes initial contact. Tighten the filter one half
turn.

6. Start unit and allow to build up to rated pressure.
Check for leaks before placing unit back into service.

GAUGES

The instruments or gauges are essential for safety,
maximum productivity and long service life of the ma-
chine. Inspect the gauges and test any diagnostic
lamps prior to start--up. During operation observe the
gauges and any lamps for proper functioning. Refer to
Operating Controls & Instruments for the normal read-
ings.

FUEL TANK

This unit is equipped with tank that can be filled from
front of unit. Using clean fuel in the fuel tank is vitally
important and every precaution should be taken to en-
sure that only clean fuel is either poured or pumped
into the tank.

Every six months the drain valve should be opened so
that any sediment or accumulated condensate may be
drained. When closing the valve, make sure it is fully
closed and does not leak.