Section 5
MAINTENANCE
26
Figure 5---3 Air/Fluid Separator
*Replacement Separator Kit P/N 02250078---031
(P/N 250002---077)
ingprocedure willexplainhowtoreplacetheairfilter
element.
AIR FILTER ELEMENT REPLACEMENT
1. Loosen and remove the wingnut from the end of
the air filter cover.
2. Remove filter cap. Loosen and remove wingnut
which holds filter element in place. Remove ele-
ment.
3. Clean the body and cover with a damp cloth in-
side and out.
4. Replace the new filter element.
5. Replace the element retaining wingnut.
6. Reposition the cover and replace the wingnut.
7. Reset the air filter restriction indicator if so
equipped, and the unit will be ready for opera-
tion.
ELEMENT INSPECTION
1. Place a bright li ght inside the element to inspect
for damage orleak holes. Concentrated light will
shine through the element and disclose any
holes.
2. Inspect all gaskets and gasket contact surfaces
ofthe housing. Should faultygaskets beevident,
correct the condition immediately.
3. If the clean element is to be stored for later use, it
must be stored in a clean container.
4. After the element has been installed, inspect and
tighten all air inlet connections prior to resuming
operation.
SEPARATOR ELEMENT REPLACEMENT
Ref er to Figur e 5 --- 3 . When f l uid c ar r y ov er is ev ident
after the fluid return line strainer and orifice as well
as the blowdown valve diaphragm have been in-
spected and found to be in satisfactory condition,
separator element replacement is necessary. Use
element no. 02250078---029 and follow the proce-
dure explained below.
1. Remove all piping connected to the sump cover
to allow removal (return line, service line, etc.).
2. Remove the fluid return line from the fitting in the
cover.
3. Remove the eight (8) cover bolts and lock-
washers and lift the cover from the sump.
4. Remove the separator element.
5.Scrapetheoldgasket material fromthe coverand
the flange on the sump. Be sure to keep all
scrapings from falling inside tank.
6. Install the new element.
7. Replace the sump coverand bolts. Run the cover
bolts in finger tight, then gradually tighten in a
crisscross pattern in 4 to 5 steps. Always tighten
the bolts alternately at opposite sides of the
cover.Never tighten bolts adjacent toeach other.
Torque bolts to 60 ft.---lbs. (81 Nm).
8. Reconnect all piping. The fluid return line tube
should extend tothe bottom ofthe separator ele-
ment. Thiswillassuretheproper fluid returnflow.
9. Clean the fluid return line strainer and clear the
orifice prior to restarting the compressor.
10. After 24 hours of operation, tighten sump cover
bolt to torque specification listed in step number
7.
PROCEDURE FOR SETTING SPEED AND
PRESSURE CONTROLS ON PORTABLE COM-
PRESSORS WI TH POPPET VALVE
Refer to Figur e 5 --- 4 . Pr ior to a djusting the C ontr ol
System, it is necessary to determine the rated full
load pressure and the high/low RPM settings for
your particular compressor. This information canbe
obtained from the Operator’s Manual (Specifica-
tionsSection) orbycontacting your local authorized
Sullair Representative. The following explanation
applies to a compressor with 100 psig (6.9 bar)
rated full load pressure.
1. Start the compressor and allow the engine to
warm---up to normal operating temperature with
the service valve closed.
2. With the service valve closed, set the engine low
speed (idle) to its specified setting with the idle
stop screw on the engine injector pump.
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