Section 6
MAINTENANCE
20
6.1 GENERAL
As you proceed in reading this section, it will be
easy to see t hat the Maintenance Program for the
air compressor is quite minimal yet important. The
use of the service gauges provided for the fluid fil-
ter, air filter and fluid separator, will alert you when
service maintenance is required. When the mainte-
nance gauge shows red, maintenance for that spe-
cific item is required. See instructions for each item
in Section 6.7, Parts Replacement and Adjustment
procedures.
6.2 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 t he
addition of fluid becomes too frequent, a simple
problem has developed which is causing this ex-
c e s s ive los s . S e e t h e Tr ou b le s h oot in g S e c t ion ( 6 . 7 )
under Excessive Fluid Consumption for a probable
cause a nd remedy.
After a routine start has been made, observe the in-
strument panel gauges a nd be sure they monitor
the correct readings for that particular phase of op-
eration. After the compressor has warmed up, it is
recommended that a general check of the overall
compressor and instrument panel be made to as-
sure that the compressor is running properly.
WARNING
!
DO NOT remove caps, plugs, or other compo-
nents when compressor is r unning or pressur-
ized.
Stop compressor and relieve all internal pres-
sure before doing so.
6.3 MAINTENANCE AFTER INITIAL 50
HOURS OF OPERATION
After the initial 50 hours of operation, a few mainte-
nance requirements are needed to rid the system
of any foreign materials if any. Perform the following
maintenance operations to prevent unnecessary
problems.
1. Clean the return line strainers.
2. Clean the return line orifices.
3. Clean compressor unit gear housing, bearing
and shaft seal orifices.
6.4
MAINTENANCE AFTER 1000
HOURS
After 1000 hours of operation, it will be necessary to
perform the following:
1. Clean the return line strainers.
2. Lubricate the Sullicon Control linkage.
3. Replace the bearing fluid filter element.
6.5 FLUID CHANGE
Fluid should be changed under following condi-
tions w hichever occurs first:
1. Every 8000 hours.
2. Once a year.
3. As indicated by fluid analysis.
A fluid sa mple at every 4000 hours is recom-
mended. Return fluid to Sullair Corporation in
Michigan City for free analysis. To facilitate this, a
sample bottle is included with the compressor.
6.6 SEPARATOR MAINTENANCE
Replace the separator element when your separa-
tor maintenance gauge s hows red or after one (1)
year, whichever comes first. The separator ele-
ments must be replaced. DO NOT clean the sepa-
rator element.
6.7 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
BEARING FILTER ELEMENT MAINTENANCE
Refer t o Figure 6 --- 1.
1. Using a strap w rench, 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 gask et is
seated in the gasket groove.
5. Continue to tightening element by hand an addi -
tional !@2 to #@4 turn.
6. Restart compressor and check for leaks.
MAIN FILTER MAINTENANCE
Refer t o Figure 6 --- 2. The ma in filt er (P/ N 044286 ) is
located schematically in the coolant line between
the receiver/sump and the compressor unit. The
main filter element is a washable type element and
* Repair Kit P/N 250025---525
Figure 6---1 Bearing Filter (P/N 250025 ---521)
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