Section 6: Maintenance; General; Daily Operation; Maintenance After Initial 50 Hours Of Operation - Sullair SN55 User Manual

SN55, SN55S, SN55V, SN75, SN75S, SN75V User Manual

6.1 General

Before any repairs are attempted, refer to Sec-
tion 1: Safety before proceeding.
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.
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.

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
Section 6
Maintenance
WARNING
WARNING
Subject to EAR, ECCN EAR99 and related export control restrictions.
"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
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6: Maintenance
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