Graco A-25 Recirculation / Over Pressure Relief Block, Air Filter Element Removal

Recirculation / Over Pressure Relief Block

Valves can be serviced with the block on the machine (see page 46 for parts view). For thorough cleaning, remove the block assembly as follows.

1.Disconnect two fluid tubes connected to back of recirculation block (3).

2.Loosen and remove two screws (10) in back of recir- culation block.

10

3

ti17995a

FIG. 4

3.See Fluid Manifold, page 46. Clean and inspect all parts for damage. Ensure that the seat (8a) and gasket (8b) are positioned inside each valve car- tridge (8).

4.Apply PTFE pipe sealant to all tapered pipe threads before reassembling.

5.Reassemble in reverse order, following all notes on page 46.

Repair

Air Inlet Filter / Water Separator (Auto Drain)

Air Filter Element Removal

1.Close air inlet valve (302) on filter (301).

2.Hold in metal spring clip and twist black cover coun- terclockwise to remove.

302 301

ti17996a

FIG. 5

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.

3A1570A 25