Sullivan-Palatek Industrial Air Compressor SP20-150

Main power source disconnected and locked out?

Compressor isolated from the compressed air supply?

Sump pressure reading is 0 psig?

All manual drain valves within the area to be serviced are open?

Unit cooled down to safe temperature?

Compressor run long enough to reach normal operating temperatures?

Drain plug from the end of the drain line at the bottom of the sump tank removed?

Warning: This procedure requires a certified electrician.

All electrical connections checked for tightness

Electrical supply checked for adequate wire size and capacity

NEMA electrical enclosure appropriate for the area

Wiring to the compressor done in accordance with NEC, local codes and OSHA regulations

Three phase power terminates at connections L1, L2, and L3 on the motor contactor

Wire of sufficient size for the amperage of the compressor

Good electrical and mechanical connection, no hairs sticking out

The oil filter should be replaced after the first 50 hours of operation and then every 1,000 hours (or quarterly) or if fault A:2020 or A:4807 is shown on the microprocessor.

The fluid filter is located between the thermal valve and the unit injection port. The SP models have the filter mounted with the filter elements located on the top side. Once the pressure in the system has been completely depleted, most of if not all of the fluid in the elements have drained out making replacement simpler.

The following procedures should be followed before doing any maintenance on the compressor and will not be repeated in any of the maintenance procedures.

1. Per Occupational Safety & Health Administration (OSHA) regulation 1910.147: The Control of Hazardous Energy Source (Lockout/Tagout), disconnect and lockout the main power source. Display a sign in clear view at the main power switch stating that the compressor is being serviced.

2. Isolate the compressor from the compressed air supply by closing a manual shutoff valve downstream from the compressor. Display a sign in clear view at the shutoff valve that the compressor is being serviced. Be certain that a pressure relief valve is installed upstream of any isolation valve.

3. Wait until sump pressure reading is 0 psig.

4. Open all manual drain valves within the area to be serviced.

5. Wait for the unit to cool before starting to service. Temperatures of 125°F (52°C) can burn skin. Some surface temperatures exceed 250°F (121°C) when the compressor is operating and just after it is shut down.

Inspect solenoid valve, correct as needed

Tighten electrical connections, correct as needed

Verify gauge accuracy, correct as needed

Sign off on the compressor maintenance

Per Occupational Safety & Health Administration (OSHA) regulation 1910.147: The Control of Hazardous Energy Source (Lockout/Tagout), disconnect and lockout the main power source. Display a sign in clear view at the main power switch stating that the compressor is being serviced.

Isolate the compressor from the compressed air supply by closing a manual shutoff valve downstream from the compressor. Display a sign in clear view at the shutoff valve that the compressor is being serviced. Be certain that a pressure relief valve is installed upstream of any isolation valve.

Wait until sump pressure reading is 0 psig.

Open all manual drain valves within the area to be serviced.

Wait for the unit to cool before starting to service. Temperatures of 125°F (52°C) can burn skin. Some surface temperatures exceed 250°F (121°C) when the compressor is operating and just after it is shut down.

Follow 6.3 Stopping for Maintenance procedures (optional).

If the compressor is equipped with the optional canopy, remove the front left access door panel. The pressure control regulating valve is located behind this enclosure panel, to the right of the electrical control panel.