Sullair Rotary Screw Air Compressor 12B-50L

Enter the part number of the fluid stop valve

Cylinder removed from valve body

Cylinder inspected for scratches, scuffing, etc

O-ring disassembled from the piston

Valve body quad-ring removed and replaced

Cylinder reassembled to the valve body

Clean exterior of air filter housing

Remove the air filter cover by loosening the wingnut securing the cover

Remove element and clean interior of housing using a damp cloth. DO NOT blow dirt out with compressed air

At this time clean or replace the element

Reset the filter maintenance indicator

The air filter element is cleanable by using compressed air. The maximum amount of times that an element should be cleaned is six (6 ) however, the element should be used no longer than a period of one (1) year without changing

The pipe ends are free of all deep scratches, gouges, dents, etc.

Install the retainer (1), gasket (2), and sleeve on one side of the pipe

Install the remaining retainer (4) and gasket (5) on the other pipe end

Position the retainer (4) and gasket to proper pipe insertion depth

Slide the sleeve (3) to the gasket (5) and move gasket (2) and retainer (1) into position

WARNING: Turn off all power, relieve line pressure, and disconnect coil lead wires to the valve before making repairs

Remove the retaining cap and slip the entire solenoid off the solenoid base subassembly

Unscrew the solenoid base assembly. Remove the core assembly, core spring and body gasket

Next, remove the end cap, body gasket, disc spring, and disc holder assembly

All parts are now accessible for cleaning or replacement. Replace worn or damaged parts with repair kit No. 250018-970 for best results

Reassemble in reverse order of disassembly

COIL REPLACEMENT KIT (P/N 250018-971)

Lubricate the Sullicon Control linkage

Replace the fluid filter element and gasket

Drain the sump and change the compressor fluid

Sign off on the compressor maintenance