Section 6
SN55, SN55S, SN55V, SN75, SN75S, SN75V User Manual
6: Maintenance
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70
Maintenance
6.1
General
As you proceed in reading this section, it will be easy to
see that the Maintenance Program for the air compressor
is quite simple. The use of the service indicators provided
for the fluid filter, air filter and fluid separator will alert you
when service maintenance is required. When the WS
Controller™ display indicates service, maintenance for
that specific item is required. See instructions for each
item in
Section 6.6: Filter maintenance
on page 71.
6.2
Daily operation
Prior to starting the compressor, it is necessary to check
the fluid level in the separator/sump tank. Should the
level be low, simply add the necessary amount. If the
addition of fluid becomes too frequent, a simple problem
has developed which is causing this excessive loss. See
Section 6.13.2: Troubleshooting guide
on page 74 under
“Excessive compressor fluid consumption” for a probable
cause and remedy.
After a routine start has been made, observe the control-
ler display and be sure it monitors the correct readings
for their particular phase of operation. After the compres-
sor has warmed up, it is recommended that a general
check on the overall compressor 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 maintenance
requirements are needed to clean the system of any for-
eign materials. Perform the following maintenance opera-
tions to prevent unnecessary problems:
• Clean the return line strainer. Refer to
Discharge,
separator/sump and piping system
of the Parts
Manual for location.
• Clean the return line orifice.
6.4
Maintenance every 2000 hours
After 2000 hours of normal operation, or at a minimum
every six months, it will be necessary to perform the fol-
lowing:
• Clean the return line strainer. Refer to
Discharge,
separator/sump and piping system
of the Parts
Manual for location.
• Replace the fluid filter element.
• Pull oil sample for analysis.
• Check air filter. Change if necessary.
6.5
Fluid maintenance
Drain the separator/sump tank and change the compres-
sor fluid using instructions shown in
Section 3.7: Lubrica-
tion change recommendations and maintenance, fluid
on
page 30
WARNING
Before any repairs are attempted, refer to
Sec-
tion 1: Safety
before proceeding.
WARNING
High-pressure hazard!
•
Do not
remove caps, plugs, and/or other
components when compressor is running or
pressurized. Stop compressor and relieve all
internal pressure before doing so.
• Failure to comply could result in death or
serious injury.
