Ingersoll-Rand HP600WJD, Operating, Maintenance & Parts Manual

Page: 33 / 98

Book 35389923 (04/02)
33
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The flexible hoses used in the fuel, oil and air lines on
these units are primarily used for their ability to
accommodate
relative movement between
components. It is extremely important they be
periodically inspected for wear and deterioration.
Clamps are used to prevent hose cover abrasion
through vibration. This abrasion may occur when two
hose lines cross, or when a hose line rubs against a
fixed point; therefore, it is necessary that all clamps be
replaced if missing. It is also important the operator
does not use the hoses as convenient hand hold or
steps. Such use can cause early cover wear and hose
failure.
NOTICE
Piping systems operating at less than 150 psi
(1050 kPa) may use a special nylon tubing. The
associated fittings are also of a special “push--in”
design. If so, features are as follows:
Pulling on the tubing will cause the inner sleeve to
withdraw and compress, thus tightening the
connection. The tubing can be withdrawn only while
holding the sleeve against the fitting. The tubing can
be removed and replaced numerous times without
losing its sealing ability.
To install the nylon tubing, make a mark (with tape or
grease pencil) approximately 7/8 inch from the end of
the tubing. Insert the tubing into the sleeve and
“push--in” past the first resistance to the bottom. The
mark should be approximately 1/16 inch from the
sleeve, for the 3/8 inch O.D. tubing; 1/8 inch for the
0.25 inch O.D. tubing. This will ensure that the tubing
is fully engaged in the sealing mechanism.
COMPRESSOR OIL FILTERS
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 severe injury or death
from hot oil and flying parts. Always relieve pres-
sure before removing caps, plugs, covers or other
parts from pressurized air system.
1. Open the service air valve(s) 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.