Ingersoll-Rand P185WIR Operating, Maintenance & Parts Manual Download Page 38

Page: 38 / 119

( )

Book: 22305593 (8/03)

COMPRESSOR OIL COOLER

The compressor lubricating and cooling oil is cooled

by means of the fin and tube--type oil cooler, located

below the radiator. The lubricating and cooling oil,

flowing internally through the core section, is cooled by

the air stream from the cooling fan flowing past the

core section. When grease, oil and dirt accumulate on

the exterior surfaces of the oil cooler, its efficiency is

impaired.
Each month it is recommended that the oil cooler be

cleaned by directing compressed air which contains a

nonflammable, non--caustic safety solvent through the

core of the oil cooler. This should remove the

accumulation of grease, oil and dirt from the exterior

surfaces of the oil cooler core so that the entire cooling

area can transmit the heat of the lubricating and

cooling oil to the air stream.
In the event foreign deposits, such as sludge and lac-

quer, accumulate in the oil cooler to the extent that its

cooling efficiency is impaired, a resulting high dis-

charge air temperature is likely to occur, causing shut

down of the unit. To correct this situation it will be nec-

essary to clean it using a cleaning compound in accor-

dance with the manufacturer’s recommendations.

HOSES

Each month it is recommended that all of the intake

lines to and from the air cleaners, the engine cooling

system hoses and all of the flexible hoses used for alr,

oil, and fuel be inspected.
To ensure freedom from air leaks, all rubber hose

joints and the screw--type hose clamps must be

absolutely tight.

Regular inspection of these

connections for wear or deterioration is necessary.
Premature wear of both the engine and compressor is

ASSURED whenever dust--laden air is permitted to

enter the engine’s combustion chamber or the

compressor intake.
The flexible hoses used in the fuel, oil and air lines on
these units are primarily used for their ability to accom-
modate relative movement between components. It is
important they be periodically inspected for wear and
deterioration. 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.

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 with-
draw 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 seal-
ing 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 FILTER

The oil filter must be replaced every 500 hours of

operation or six (6) months, whichever comes first.
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. Proceed as
follows:

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.

Open the service air valve(s) to ensure that

system is relieved of all pressure. Close the

valve(s).

Turn the spin--on filter element counterclockwise

to remove it from the filter housing. Inspect the

filter.

NOTICE