Graco A Series Instructions-Parts List Manual page 5

6. Lubricate the throat packings and glands. Install one
male gland (19†) then seven v-packings with the lips
facing down: one UHMWPE (20†), one leather
(25†), UHMWPE, leather, UHMWPE, leather, UHM-
WPE. Install the female gland (26†). Install three
v-packings with the lips facing up: UHMWPE,
leather, UHMWPE. Install the other male gland
(19†) and o-ring (35†) (F
7. Reinstall the coupling nut and collars on the piston
rod (17) (F . 1, page 4).
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8. See your separate pump assembly manual for cor-
rect torque specifications for your model. Reinstall
the shield (52).
Lower Disassembly
NOTE: Seal kits are available for each lower size. See
page 22. Kit parts are marked with an asterisk in the text
and drawings, for example (2*).
NOTE: Throat packing kits are available. See page 22.
Kit parts are marked with a symbol, for example (19†).
1. Flush the pump, if possible.
2. Stop the pump at the middle of its stroke.
3. Relieve the pressure, page 4.
4. Remove the lower from the motor as described in
your separate pump manual.
NOTE: See F . 4, page 7 for an exploded view of the
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entire lower. See F . 5, page 8 for a cutaway view of the
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lower and an exploded view of the throat packings.
5. Secure the inlet manifold (18) in a vise.
6. Remove the four caps crews (9) and washers (8)
from around the outlet manifold (22).
7. Remove the outlet manifold (22), balls (23), seats
(24), and gaskets (7).
8. Remove the o-ring (35), glands (19, 26), packings
(20, 25), and spring (43).
9. Remove the three cylinder screws (13) and lock-
washers (14). Lift off the outlet housing (16).
3A2023C
. 2, page 4).
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Repair - Models 24J088 and 24J089 Only
NOTE: The fluid tubes (3), cylinder (1), and piston
assembly (17, 10, 11, 44, 12) may come loose with the
outlet housing, or may remain in place on the inlet hous-
ing (15).
10. Remove the tubes (3) and cylinder (1). Pull the pis-
ton assembly out of the cylinder. Inspect the surface
of the piston rod (17) and the inside surfaces of the
cylinder and tubes. If any of these parts are
scratched or damaged, replace them.
11. Remove the inlet manifold (18) from the vise.
12. Remove the four caps crews (9) and washers (8)
from the inlet manifold (18).
NOTE: One inlet seat (6) includes a pressure relief
valve. See F . 3. This seat must be located exactly
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where shown (the left side as viewed in F
text cast into the inlet housing as a guide.
13. Remove the balls (5), inlet seats (6 and 33), and
gaskets (7).
NOTICE
Be careful not to drop or damage the balls (5) or seats
(6 and 33). A damaged ball or seat cannot seal prop-
erly and the pump will leak. One inlet valve seat (33)
can be reversed to provide longer use of the seat.
However, the fluid inlet seat (6) contains a pressure
relief valve and is not reversible. See F
orientation.
14. Inspect the pressure relief valve (c) in the seat (6) to
make sure it is not clogged. Press down on the
valve's ball to see if the ball and the spring are free
to move. See F . 3.
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a
b
c
F . 3. Inlet Seat with Pressure Relief Valve
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. 4). Use the
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. 3 for proper
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P
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6
5