Sullair 375H - Element Inspection; Separator Element Replacement; Procedure for Setting Speed and Pressure Controls on Portable Compressors Equipped with Poppet Valves

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375 John Deere Standard and Aftercooled/Filtered Operator’s Manual and Parts List
SECTION 5
Element Inspection
Insert a bright light source into the element and look 1.
for any light leaks which indicate the presence of
damage (holes, cracks, etc.)
Inspect all gaskets and gasket contact surfaces of the 2.
housing and replace any damaged ones.
Store clean elements for later use in a clean container.3.
After installing the element, inspect and tighten all air 4.
inlet connections before operating the compressor.
Separator Element Replacement
Refer to Figure 5-3. When compressor uid carryover is
evident, after replacing or inspecting the uid return line
strainer and orice, and the blowdown valve; and all are in
satisfactory condition, the separator element must be
replaced with Kit number 250034-087 (element for air/uid
separator).
Capscrew1.
Washer2.
Cover3.
Separator Element with Gaskets4.
Receiver Tank 5.
Figure 5-3: Air/Fluid Separator
Disconnect all sump cover piping connections to 1.
permit removal (return line, service line, etc.).
Remove the uid return line from the tting on the 2.
cover.
Remove the eight (8) cover bolts and washers and lift 3.
the cover off the sump.
Remove the separator element.4.
Scrape the old gasket material from the cover and the 5.
ange on the sump. Do not allow the scrapings to fall
into the tank.
Install the new element.6.
Replace the sump cover and bolts. Lightly tighten all 7.
the bolts and then gradually tighten them alternating
between bolts which are diagonally opposite each
other. Torque the bolts to 160 ft-lbs (215 N•m).
Reconnect all piping. The uid return line tube should 8.
extend to the bottom of the separator element which
will ensure proper return line ow.
Clean the uid return line strainer and clear the orice 9.
before starting the compressor.
After 24 hours of operation, tighten the sump cover 10.
bolts to the value given in step 7.
Procedure For Setting Speed And Pressure
Controls On Portable Compressors
Equipped With Poppet Valves
Refer to Figure 5-4 and Figure 5-5. Before adjusting the
compressor’s control system, the rated full-load pressure
and the high/low rpm settings must be determined. This
information is provided in Specifications on page 57 and
on page 58 or can be obtained by contacting a Sullair
representative.
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