MAINTENANCE
64
SL, SM & SH 90, 110, 132, 150, 200, 250 &300 (50Hz)
L, H & HH 125, 150, 200, 250, 300, 350 & 400 (60Hz)
WARNING
Do not under any circumstances open any drain valve or remove
components from the compressor without first ensuring that the
compressor is FULLY SHUT–DOWN, power isolated and all air
pressure relieved from the system.
AIR FILTER CHANGE PROCEDURE
A warning message will appear if the air filter pressure drop exceeds
0,048 bar (0,7 psi). To check the condition of the inlet filter, run the
compressor in load mode and select “INLET VACUUM” from the
current status screen using the up and down arrows. Change if equal
to or above 0,048 bar (0,7 psi). To change the inlet filter, remove the
appropriate enclosure panel on the front of the machine. Unscrew the
wingnut and remove the cover to expose the filter. Remove the dirty
filter. Clean all interior surfaces of the filter box as required. Install new
filter element(s). Replace cover and tighten wingnut. Re–install
enclosure panel. Start machine and run in the load mode to verify filter
condition
Parts required
Air filter element
S90
qty 1.
S110/S132/S150
qty 2
HIGH DUST OPTION :
To change inlet filter element, remove the right front enclosure
panel, loosen the wingnut on the end of the filter housing. Remove the
primary element.
NOTE: the safety element should be changed every other primary
element change. If safety element service is required, remove it at this
time.
With the elements removed, inspect the vacuator valve to see that
it is not inverted, damaged or unplugged. repair or replace it as
necessary. Clean the gasket sealing surfaces of the filter housing.
Inspect all filter connections and compressor inlet ducting for a leak
tight fit. Carefully install each new element and wingnuts. Reinstall
enclosure panel.
Start machine and run in load mode to verify filter condition.
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 right end enclosure panel. 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 lubricant 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 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.
Tools required
Wide–blade screwdriver or 3/8” wrench or 3/8” socket with ratchet
400mm adjustable wrench
600mm adjustable wrench
Oil filter wrench
Parts required
Oil filter element
Approximately 49 litre (13 U.S. gall) of I–R ULTRA COOLANT
hydraulic oil.
(90–150kW/125–200HP)
Approximately 91 litre (24 U.S. gall) of I–R ULTRA COOLANT
hydraulic oil.
(200–300kW/250–400HP)
GEARCASE BREATHER
To service the gearcase breather, remove the right end 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 2
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.
AIREND BEARINGS
Airend bearings are lubricated by the compressor lubricating oil and
require no maintenance.
COMPRESSOR MODULE INPUT SHAFT SEAL REPLACEMENT
1. Remove the main motor, observing all safety precautions in Section
A of this manual, utilising appropriate lifting gear as recommended and
following established safe working practices.
2. Pull the compressor coupling half off the shaft.
3. Remove the 4 bolts retaining the seal housing and screw 2 of them
to remove the housing complete with seal.
4. Remove the old seal from the housing.
5. Remove the old wear sleeve from the input shaft.
6. Clean the seal housing, input shaft, wear sleeve inside diameter and
seal outside diameter (Absolutely grease free).
