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Repair
3A1570A 25
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.
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.
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.
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.
FIG. 4
10
3
ti17995a
FIG. 5
302 301
ti17996a