Sullair 400HH - Air Filter Maintenance; Separator Element Replacement

5: Maintenance 375, 375H, 400HH, 425, 425H T4F User Manual
02250223-036 R01
52 Subject to EAR, ECCN EAR99 and related export control restrictions.
1. Remove the old element with a strap
wrench.
2. Clean the gasket seating surface.
3. Apply a light coating of fluid to the new gas-
ket.
4. Hand tighten the new element (P/N 250025-
525) until the new gasket is seated.
5. Continue tightening the element by hand an
additional ½ to ¾ turn.
6. Restart the compressor and check for leaks.
5.9.3 Air filter maintenance
Refer to Figure 5-2. Air filter maintenance should be per-
formed as often as conditions require. If the filters are
equippe
d with optional maintenance indicators, change
the filters every time the indicators show a change is nec-
essary.
5.9.3.1 Air filter replacement
1. Loosen and remove the air filter and cover.
2. Remove the primary and secondary ele-
ments.
3. Clean the body, inside and out, with a damp
cloth.
4. Reinstall (if clean) or replace the secondary
element.
5. Replace the new primary filter element.
6. Reposition the cover and lock it into the posi-
tion.
7. Reset the filter restriction indicator (if
equipped).
5.9.3.2 Element inspection
1. Insert a bright light source into the element
and look for any light leaks which indicate
the presence of damage (holes, cracks, etc.)
2. Inspect all gaskets and gasket contact sur-
faces of the housing and replace any dam-
aged ones.
3. Store clean elements for later use in a clean
container.
4. After installing the element, inspect and
tighten all air inlet connections before operat-
ing the compressor.
5.9.4 Separator element replacement
Refer to Figure 5-3. When compressor fluid carryover is
evident, after replacing or inspecting the fluid return line
strainer and orifice, and
the blowdown valve; and all are
in satisfactory condition, the separator element must be
replaced with kit number 250034-087 (element for air/
fluid separator).
1. Disconnect all sump cover piping connec-
tions to
permit re
moval (return line, service
line, etc.).
2. Remove the fluid return line from the fitting
on the cover.
Figure 5-2: Air filter
1. Filter cover
2. Primary element
1
3. Secondary (safety) element
2
4. Filter body
5. Vacuator valve
1
Replacement primary element P/N: 02250185-973
2
Replacement safety (secondary) element P/N: 02250185-974