Section 7
MAINTENANCE
37
7.1 GENERAL
As you proceed in reading this section, it will be easy
to see that the Maintenance Program for the air com-
pressor is quite minimal. The use of the service indi-
cators provided for the bearing filter, airfilter andfluid
separator, will alert you when service maintenance is
required. When the maintenance gauge shows red,
maintenance for that specific item isrequired. See in-
s t r uc t ions for eac h item in Sec tion 7.8, Par t s R e-
plac ement and Adjus t ment pr oc edur es .
7.2 DAILY OPERATION
Prior to starting the compressor, it is necessary to
check the fluid level in the sump. Should the level be
low, simply add the necessary amount. If the addi-
tion of fluid becomes too frequent, a simple problem
has developed which is causing this excessive loss.
See the Troubleshooting Section under Excessive
Fluid Consumption for a probable cause and remedy.
After a routine start has been made, observe the in-
strument panel gauges and be sure they monitor the
correct readings for their particular phase of opera-
tion. After the compressor has warmed up, it is rec-
ommended that a general check on the overall com-
pressor and instrument panel be made to assurethat
the compressor is running properly.
WARNING
!
DO NOT remove caps, plugs, and/or other compo-
nents when compressor isrunning orpressurized.
Stop compressor and relieve all internal pressure
before doing so.
7.3 MAINTENANCE AFTER INITIAL 50 HOURS OF
OPERATION
After the initial 50 hours of operation, a few mainte-
nance requirements are needed to clean the system
of any foreign materials. Perform the following main-
tenance operations to prevent unnecessary prob-
lems.
1. Clean the return line strainer.
2. Clean the return line orifice.
7.4 MAINTENANCE EVERY 1000 HOURS
After 1000 hours of operation, it will be necessary to
perform the following:
1. Clean the return line strainer.
2. Replace the fluid filter element and gasket.
7.5 FLUID MAINTENANCE
Drain the sump and change the compressor fluid us-
ing ins tr uc tions s hown in s ec tions 3.2, 3.3, and 3.4.
* Repair Kit P/N 250025-525
Figure 7-1 Fluid Filter (P/N 02250096-783)
7.6 FILTER MAINTENANCE
Replace your fluid filter element and the gasket un-
der any of the following conditions, whichever occurs
first:
1. As indicated by the maintenance gauge.
2. Every 1000 hours.
3. Every 6 months.
7.7 SEPARATOR MAINTENANCE
Replace the separator elements when your separa-
tor maintenance gauges show red or after one (1)
year, whichever comes first. The separator elements
must be replaced.
DO NOT
clean the separator ele-
ments.
7.8 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
FLUID FILTER ELEMENT REPLACEMENT
Refer t o F igur e 7 -- 1.
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 inthe gasketgroove. Avoidany nicks, cuts
or pinches to the gasket.
5. Continue tightening element by hand an additional
1/2to3/4turn.
6. Restart compressor and check for leaks.
CAUTION
!
To minimize the possibility of filter element rup-
ture, it is important that ONLY replacement ele-
ments identified with the Sullair name, logo and
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