Sullair 20/12 500 CFM, Operator'S Manual And Parts List

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Section 6
MAINTENANCE
21
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.
WARNING
!
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. If the addi-
tion of fluid becomes too frequent, a simple problem
has developed which is causing this excessive loss.
See the Troubleshooting Section (6.8) under Exces-
sive 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 indicate the
correct readings for that 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 OP-
ERATION
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 strainer.
2. Clean the return line orifice.
3. Clean the compressor unit gear housing, bearing
and shaft seal orifices.
4. Change the bearing filter element.
5. Clean the main strainer elements.
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.
6.5 FILTE R MAINTENANCE
Replace your bearing filter element when the mainte-
nance indicator shows red, or at every lubricant
change (6 months). This must be done even if the
bearing filter indicator does not show red. Also clean
the main filter element and install a new gasket kit at
this time.
6.6 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
S E PARATO R M AI NT E NANCE
Ref er t o F igur e 6 -- 1 . W hen t he need f or a s epar at or
element replacement is indicated by the mainte-
nance indicator (usually mounted to the air receiver/
separator tank but can also be remote mounted), use
the following procedure for separator replacement.
1. Remove the air receiver/separator tank lid by re-
moving the twelve (12) hex head capscrews.
NOTE
To assist with the removal of the tank lid, Sullair
has provided a 1”--8 nut to the top lid so it can be
removed by a 1”--8 eye bolt (which is available from
Sullair) or a similar type of lifting device.
2. Remove the 1/4”--10 jam nut and sealing hex nut
from the 1/4”--10 separator hold down rod.
3. Remove the round separator cover plate from the
top of the separator element.
4. Remove the old separator element and discard.
* Repair Kit P/N 250028-166
Figure 6-1 Separator Element (P/N 409805-006)