General; Daily Operation; Maintenance After Initial 50 Hours Of Operation; Maintenance Every 1000 Hours - Sullair LS-20S Operator's Manual And Parts List

7.1 GENERAL

As you proceed in reading this section, it will be easy
to see that Maintenance Program for the air com-
pressor is quite minimal. The Supervisor II monitors
the status of the air filter, fluid filter, and separator ele-
ments. When maintenance to these devices is re-
quired, the Supervisor II will display the appropriate
maintenance message and flash the location LED on
the graphics map as a visual reminder.
!
DO NOT remove caps, plugs, and/or other compo-
nents when compressor is running or pressurized.
Stop compressor and relieve all internal pressure
before doing so.

7.2 DAILY OPERATION

Following a routine start, observe the various Super-
visor II displays to check that normal readings are be-
ing made -- previous records are very helpful in deter-
mining the normalcy of the measurements. These
observations should be made during all expected
modes of operation (i.e. full load, no--load, different
line pressures, cooling water temperatures, etc.).
During the initial start--up or servicing of the package,
fluid may have to be added to the sump vessel to re-
store an adequate level. Frequent fluid additions to
maintain said level would be indicative of excessive
f luid c ons um pt ion, and s hould be inv es t igat ed -- s ee
t he Tr oubles hoot ing S ec t ion 7. 7
probable cause and remedy.
7.3 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. Perform the following mainte-
nance operations to prevent unnecessary problems.
1. Clean the return line strainers.
2. Clean the return line orifices.
3. Change the fluid filter element.
7.4 MAINTENANCE EVERY 1000 HOURS OF OPERA-
TION
1. Clean the return line strainers.
2. Lubricate the Sullicon actuator linkage.
3. Change the fluid filter element.
7.5 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
Please familiarize yourself with the safety guidelines
offered in Section 1 of this manual before attempting
any maintenance on the package.

AIR FILTER MAINTENANCE

Ref er t o F igur e 7 -- 1. A ir f ilt er m aint enanc e on air f ilt er
no. 409264 should be performed when the Supervi-
sor displays AIR MNTN and the LED display flashes,
or when corresponding maintenance message is dis-
played by the Supervisor II, or once a year, whichev-
er comes first. If the filter needs to be replaced, order
replacement elements (primary replacement ele-
ment no. 409853, and secondary replacement ele-
WARNING
of t his m anual f or
MAINTENANCE
ment no. 409854). Consult the following procedures
to replace the air filter elements.
AIR FILTER ELEMENT REMOVAL
1. Clean exterior of air filter housing.
2. Release tension on the retaining clamp and re-
move.
3. Remove wingnut and washer from cover; remove
retaining plate.
4. Remove wingnut and washer securing the primary
element; remove element.
5. Remove wingnut and washer securing the secon-
dary element; remove element.
6. Remove element and clean interior of housing us-
ing a damp cloth. DO NOT blow dirt out with com-
pressed air.
7. At this time replace the elements.
8. Reassemble in the reverse order of the disassem-
bly.
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 holes.
2. Inspect all gaskets and gasket contact surfaces of
the housing. Should faulty gaskets be evident,
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.
5. DO NOT strike element(s) against a hard surface
to dislodge dirt -- this may damage the sealing sur-
faces and/or rupture the element.
6. DO NOT oil the element(s).
ELEMENT REPLACEMENT
1. Element replacement is performed by reversing
the removal instructions. Make sure that the seal-
ing washers and cover gasket are fully seated by
their corresponding nuts.

FLUID FILTER MAINTENANCE

Ref er t o F igur e 7 -- 2. F luid f ilt er m aint enanc e s hould
be performed when one or more of the following
items occurs:
S when corresponding maintenance message is
displayed by the Supervisor II -- this corresponds
to a pressure loss condition across the units of 20
psig (1.4 bar).
S every 1000 hours.
S every 6 months.
S every fluid charge change -- STANDARD MA-
CHINES ONLY.
Your fluid filter includes a proprietary replaceable ele-
ment available solely from Sullair and its agents -- DO
NOT substitute.
1. Using a strap wrench, remove the old element and
gasket.
2. Clean the gasket seating surfaces.
Section 7
33