Graco A Series Instructions-Parts List Manual page 12

Repair - Model 24J090
5. Use a 13 mm socket wrench to loosen and remove
the twelve caps crews (9) and lockwashers (8) on
the outlet manifold (1).
6. Lift the manifold (1) off the outlet valve housing (2)
and remove the ball guides (16), balls (18), seats
(13) and seals (17). Remove the o-ring (15) from the
seats (13).
NOTE: See F . 10. Seat Puller Kit 220384 is available
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to make removal of the seats from the manifolds easier.
NOTICE
Be careful not to drop or damage the balls (18) or
seats (13). A damaged ball or seat cannot seal prop-
erly and the pump will leak. The outlet valve seats (13)
can be reversed to provide longer use of the seat.
Seat Puller Kit
220384
Screw bolt (X, Part 108481) into Seat
Puller (Y, Part 181630).
Position Seat Puller (Y) under the seat
(S) by slipping it through at an angle.
Place Seat Puller (Z, Part 181629) on top of
seat. Turn bolt (X) to pull the seat out.
Z
F . 10. Removing Seats from Manifold
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12
X
Y
S
Y
X
7. Remove the throat cartridge (45). Remove the
o-ring (40), glands (29, 30), and packings (27, 28).
8. Remove the nuts (12), lockwashers (11), and six
cylinder caps crews (10). Lift off the outlet valve
housing (2).
9. Lift the riser tubes (6) and cylinder (4) off the inlet
valve housing (7). The piston assembly may stay in
the cylinder. Remove the seals (3 and 5) from the
inlet and outlet housings (2, 7). See F
NOTE: Tap on the valve housings with a plastic mallet
and use a slight rocking motion to help loosen and
remove the cylinder and tubes.
10. If Part No. 218742 accessory pump stand is used,
unscrew and remove the three pump stand bolts.
Lift the inlet valve assembly off the stand. Place the
inlet valve housing (7) face down on a protected sur-
face.
11. Use a 13 mm socket wrench to loosen and remove
the twelve caps crews (9) and lockwashers (8) from
the inlet manifold (1). See F
12. Lift the manifold (1) off the inlet valve housing (7)
and remove the seats (13 and 14). Remove the
o-ring (15) from the seats. Remove the balls (18),
ball guides (16) and seals (17).
NOTICE
Be careful not to drop or damage the balls (18) or
seats (13 or 14). A damaged ball or seat cannot seal
properly and the pump will leak. One inlet valve seat
(13) can be reversed to provide longer use of the seat.
However, the fluid inlet seat (14) contains a pressure
relief valve and is not reversible. See F
proper orientation.
13. Inspect the pressure relief valve in the fluid inlet seat
(14) to make sure it is not clogged. Press down on
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3A2023C