Section 5
MAINTENANCE
28
Figure 5---1 Compressor Fluid Filter
* Replacement Element Kit P/N 250028---032
13. Clean the return line orifice.
5.6A MAINTENANCE EVERY 1500 HOURS OR
ANNUALLY
1. When using Sullair AWF, change the compressor
fluid and replace the fluid filter element (See
maintenance procedures in Section 5.7).
2. Service engine cooling system.
5.6B MAINTENANCE EVERY YEAR OR 12,000
MILES
1. Lubricate axle bearings on wheel---mounted
units.
5.7 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
COMPRESSOR FLUID CHANGE PROCEDURE
Warm---up compressor for 5 to 10 minutes to warm
the fluid. Shut the compressor off and relieve all in-
ternal pressure before proceeding. Drain the fluid
sump by opening the valve at the bottom of the
sump tank. Change the compressor fluid and re-
place the fluid filter element. For element replace-
ment see procedure for servicing the fluid filter in
this section. Fill the sump with fluid according to
specifications in Section 3.
COMPRESSOR FLUID FILTER ELEMENT RE-
PLACEMENT
Refer to Figure
.
1. Using a strap wrench, remove the old element.
2. Clean the gasket seating surface.
3. Apply a light film of fluid to the new gasket.
4. Hand tighten the new element (from kit P/N
250028---032) until the new gasket is seated on
the gasket seat.
5. Continue tightening the element by hand an addi-
tional 1/2 to 3/4 turn.
6. Restart the compressor and check for leaks.
AIR FILTER MAINTENANCE
Refer to Figure
. Air filter maintenance should
be performed as often as conditions require. If the
filters are equipped with an optional maintenance
indicator, maintenance should be done when the in-
dicator shows red. The following procedure will ex-
plain how to replace the air filter element.
AIR FILTER ELEMENT REPLACEMENT
1. Loosen and remove the air filter end cover.
2. Remove element.
3. Clean the body and cover with a damp cloth in-
side and out.
4. Replace the new filter element.
5. Reposition the cover and lock into position.
6. Reset the air filter restriction indicator if so
equipped, and the unit will be ready for opera-
tion.
ELEMENT INSPECTION
1. Place a bright light inside the element to inspect
for damage or leak holes. Concentrated light will
Figure 5---2 Air Filter
*Filter Element P/N 02250122---816 (2 req’d)
Summary of Contents for 185H
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