General; Daily Operation; Maintenance After Initial 50 Hours; Maintenance As Required By Lubrication Guide (Section 3) - Sullair 20/12 Series Operator's Manual

6.1 GENERAL

A good maintenance program is the key to long com-
pressor life. Below is a program that when adhered to
should keep your compressor in top running condi-
tion. Included in this program are routine service op-
erations for every major serviceable component of
the compressor. See Section 6.6 for instructions on
Parts Replacement and Adjustment Procedure.
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.

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. DO NOT
OVER FILL THE FLUID LEVEL. If the addition of
fluid becomes too frequent, a simple problem has de-
veloped which is causing this excessive loss. See the
Troubleshooting Section (6.8) under
Consumption for a probable cause and remedy.
After a routine start has been made, observe the in-
strument panel gauges and be sure they indicate the
correct readings for each 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 assure that
the compressor is running properly.
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. 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 bearing filter element.
4. Clean the main strainer element.
6.4 MAINTENANCE AS REQUIRED BY
LUBRICATION GUIDE (SECTION 3)
1. Drain the sump and change the compressor fluid.
2. Replace the bearing filter element.
3. Clean the return line strainer.
4. Lubricate the inlet cylinder linkage.
5. Clean the main strainer element.

6.5 FILTER MAINTENANCE

Replace your bearing filter element when the mainte-
nance indicator shows red, or at every lubricant
change. This must be done even if the bearing filter
indicator does not show red. Also check the main fil-
ter element and install a new gasket kit at this time.
!
WARNING
Excessive Fluid

6.6 PARTS REPLACEMENT AND ADJUSTMENT

PROCEDURES

SEPARATOR MAINTENANCE
Refer to Figure 6-1. Separator element replacement
is required when indicated by the maintenance indi-
cator or once a year, whichever comes first, use the
following procedure for separator replacement. Fol-
low the procedure explained below for separator ele-
ment replacement.
1. Relieve all pressure from the separator and all
compressor lines.
2. Disconnect all piping connected to the separator
cover to allow removal (return lines, service lines,
etc.)
3. Loosen and remove the 12 hex head capscrews
(3/4" x 3") from the cover plate.
4. Lift the cover plate from the separator.
5. Remove the primary and secondary separator ele-
ments.
Figure 6-1 Separator Element
Primary P/N 250034-121
Secondary P/N 250034---133
* Repair Kit P/N 250034-122
** Repair Kit P/N 250034-134
Section 6
MAINTENANCE
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