10.0 MAINTENANCE
IRN37–160K–OF & IRN50–200H–OF
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all hazards present are known (e.g. pressurized
components, electrically live components, removed
panels, covers and guards, extreme temperatures,
inflow and outflow of air, intermittently moving parts,
safety valve discharge etc.).
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appropriate personal protective equipment is worn.
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loose clothing, jewelry, long hair etc. is made safe.
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warning signs indicating that
Maintenance Work is in
Progress
are posted in a position that can be clearly
seen.
Upon completion of maintenance tasks and prior
to returning the machine into service, ensure that:–
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the machine is suitably tested.
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all guards and safety protection devices are refitted.
S
all panels are replaced, canopy and doors closed.
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hazardous materials are effectively contained and
disposed of.
10.4 ROUTINE MAINTENANCE
This section refers to the various components which
require periodic maintenance and replacement.
For all other maintenance, contact your local
Ingersoll–Rand office, Distributor or Air Center.
Refer to safety information and maintenance
procedures prior to carrying out any of the maintenance
in the following sections.
Prior to starting
Oil level checking procedure.
The oil level should be checked daily. The level sight
glass is located on the oil sump. While the machine is
running on load, oil should always be visible in the sight
glass. The normal position is
1
/
2
to
3
/
4
full.
Stop the machine and ensure oil is still visible in the
sight glass.
Adding oil
Run the compressor for a minimum of 40 seconds, the
oil level should be
1
/
2
to
3
/
4
full as seen in the sight
glass.If not, stop the compressor and slowly unscrew
the oil fill plug. Add Ultra–Coolant and recheck the oil
level. Repeat until the oil level is visible in the sight glass
with the compressor running
WARNING
Under no circumstance should the compressor be
operated with the oil fill plug removed
OIL AND OIL FILTER
Change oil filter after every 8,000 hours or less as
required (see checking procedure below).To check the
condition of the oil filter, the compressor must be
running and the oil temperature must be greater than
49
_
C (120
_
F). With these conditions met select “OIL
FILTER PRESS DROP” from current status screen. If
“OIL FILTER PRESS DROP is less than 0,9 bar (13 psi)
then the oil and filter do not need service. If the warning
light is on and “CHANGE OIL FILTER” warning is
displayed, then the oil should be drained and the filter
replaced.
To change the oil and filter, the oil should be warm for
more effective drainage. Remove the two enclosure
panels at the rear of the machine. Remove the pipe plug
from the oil drain connection in the rear of the
baseplate. Place a suitable drain pan under the drain
connection and open the valve.
Dispose of waste oil according to local regulations.
When the gearcase is empty, close the valve and
replace the pipe plug. Position the empty drain pan
under the oil filter. Remove the filter and allow the oil to
drain from the oil cooler as well. Wipe the sealing
surface of the filter adaptor with a clean, lint–free cloth.
Remove the replacement filter from its protective
package. Apply a small amount of clean oil on the
rubber seal and install the element. Screw the element
on until the seal makes contact with the seat on the
adaptor head. Tighten the filter a further 1/2 to 3/4 of a
turn.
Unscrew the oil fill plug and add oil until the level
reaches the top of the gearcase sight glass.
Replace the oil fill plug and tighten
