Section 6
MAINTENANCE
34
1. Using a strap wrench, remove the old element
and gasket.
2. Clean gasket seating surface.
3. Apply a light film of fluid to the new gasket.
4. Hand tighten new element until new gasket is
seated in the gasket groove. Avoid any nicks,
cuts or pinches to the gasket.
5. Continue tightening element by hand an addi-
tional 1/2 to 3/4 turn.
6. Restart vacuum and check for leaks.
INLET AIR FILTER MAINTENANCE
Refer to Figure 6-2. Air filter maintenance should be
performed every six (6) months or when indicated
by the inlet vacuum gauges.
Following, you will find procedures on how to
replace and clean the air filter element.
INLET AIR FILTER ELEMENT REPLACEMENT
1. Clean exterior of air filter housing.
2. Remove the air filter cover by loosening the
clamps securing the cover.
3. Clean debris from inside filter housing prior to
removing element.
4. Remove element and clean the base and interior
of cover using a damp cloth. DO NOT blow dirt
out with compressed air.
5. At this time, replace the element.
6. Replace cover.
ELEMENT INSPECTION
1. Place a bright light inside the element to inspect
for damage or leak holes. Concentrated light will
shine through the element and disclose any
faulty areas.
2. Inspect all gaskets and gasket contact surfaces
of the housing. Should faulty gaskets be evi-
dent, 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 REPLACEMENT
Refer to Figure 6-3. The separator element must be
changed when required by the maintenance gauge
or once a year, whichever comes first. Follow the
procedure explained below for separator element
replacement.
1. Relieve all pressure from the sump tank.
2. Disconnect all piping connected to the sump
cover to allow removal of return lines, discharge
lines, etc.
3. Loosen and remove the capscrews from the
cover plate.
4. Lift the cover plate from the sump.
5. Remove the element.
6. Inspect the receiver/sump tank for rust, dirt, etc.
7. Scrape the old gasket material from the cover
and the flange on the sump being careful not to
let the scraps fall in the sump.
8. Insert new the separator element into the sump
Figure 6-2 Inlet Air Filter Maintenance
(P/N 250026-119)
KEY NO. DESCRIPTION QUANTITY
1 COVER 1
2 O-RING* 1
3 WING NUT 1
4 ELEMENT COVER 1
5 FILTER ELEMENT** 1
6 CANISTER 1
*Replacement O-ring P/N 250039-541
**Replacement Element P/N 250026-120
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