Reversing Switch; Solenoid Valve Replacement; Air Inlet Filter / Water Separator (Auto Drain) - Graco Reactor A-20 Repair Parts

Repair

Reversing Switch

1. Remove single screw and remove cover from
reversing switch (410).
2. Inspect parts for damage or wear; replace switch
assembly if necessary.
3. Disconnect wire from terminal block (follow wire
back to where it connects to terminal block and dis-
connect).
4. Remove two screws (404) from mounting bracket.
427
404

Solenoid Valve Replacement

See A-20 Air Motor Pump Assembly, page 32.
1. Disconnect all tubing attached to air control solenoid
valve (430). To disconnect, push end sleeve in and
pull tube. Mark each tube according to its corre-
sponding fitting.
2. Loosen self-contained plug retaining screw on each
end and remove electronic plug.
3. Remove three screws (424) on air control solenoid
valve.
4. Replace fittings (425, 426, 428) and muffler (427)
onto new valve.
5. Reattach mounting screws and plug retaining
screws.
6. Reconnect all tubing lines.
16
Air Inlet Filter / Water Separator
(Auto Drain)
Air Filter Element Removal
See Air Inlet, page 30.
1. Close air inlet valve (302) on filter (301).
2. Hold in metal spring clip and twist black cover coun-
terclockwise to remove.
410
302
301
ti8487a
3. Unscrew clear drain cover by hand.
4. Unscrew black filter element retainer to remove ele-
ment.
5. Inspect filter element. Clean or replace.
Air Filter Element Installation
1. Insert cleaned or replacement filter (114228).
2. Hand-screw filter retainer into place.
3. Hand-screw clear drain cover until tight.
4. Reposition black cover and turn. Make sure it
"snaps" back into place.
ti8456a
311512A