EN
72
80448608 Rev B
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
Ingersoll Rand
premium 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 Change
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. Change the oil filter and allow the oil to drain from
the oil cooler as well.
Unscrew the oil filler cap and add oil until the level reaches
the top of the gearcase sight glass.
Start the compressor and run in unload mode. Check the oil
filter and oil drain valve for leaks. Select ”Bearing Oil Press”
from the current status screen to insure that adequate oil
pressure has been attained. Inspect the gearcase sight glass,
the correct oil level for the sump during operation is 3/4 to
4/4 full. Some amount of foaming in the sight glass is normal.
The oil level is interpreted as the level in the sight glass
below the top foam, where a line of separation can be seen. If
additional oil is required, stop the compressor and add oil as
needed.
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 filter does not need service. If the warning
light is on and ”Change Oil Filter” warning is displayed, then
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the oil filter should be replaced.
Position the empty drain pan under the oil filter. loosen the
filter housing. Remove the element from the housing . 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.
Start the compressor, check for leaks and check the oil level.
Tools Required
Wide−blade screwdriver or M10 wrench or M10 socket with
ratchet
400mm adjustable wrench
600mm adjustable wrench
Oil filter wrench
Parts Required
Oil filter element
Approximately 64 litre (17 U.S. gal) of
Ingersoll Rand
premium coolant for N90−160K, N125−200H
Approximately 53 litre (14 U.S. gal) of
Ingersoll Rand
premium coolant for N55−75K, N75,100H
Approximately 53 litre (14 U.S. gal) of
Ingersoll Rand
premium coolant for N37−45K, N50−60H
Pressure System
At 2000 hour intervals, inspect the external surfaces of the
airends and piping, including all fittings, for visible signs
of impact damage, excessive corrosion and abrasions. Any
suspect parts should be replaced before the compressor is
put back into service.
Gearcase Breather
To service the gearcase breather, remove the appropriate
panel. Remove the breather cover by unscrewing the four
retaining screws. Remove all of the breather media and clean
with a suitable solvent. Allow the media to dry. Re−install the
media, the cover, and the enclosure panel.
Condensate Drain Functionality
To verify the functionality of the condensate drains, simply
observe the timed operation of each. Each drain should open
at least every 3 minutes while the compressor is loaded. (The
intercooler drain exhausts at a much lower pressure than the
aftercooler).
Oil free condensate can be disposed of via a sewer drain.
Condensate Strainers
In order to service the condensate strainers (both interstage
and discharge), the strainer service valves preceding the
strainers should be closed. Remove the screens from the
strainers, while noting the direction. Clean any debris from
the screens and reinstall. Open the strainer service valves.
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MAINTENANCE
RELEASED 06/Feb/2018 13:48:37 GMT
