Graco A Series Instructions-Parts List Manual page 11

4. Unscrews the coupling nut (a) from the motor shaft.
Lift the motor shaft and remove the coupling nut (a)
and collars (b) (F . 8).
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F . 8
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5. Remove the throat cartridge (45). Remove the
o-ring (40), glands (29, 30), and packings (27, 28).
NOTE: Inspect the surface of the piston rod (19). If it is
scratched, replace the piston rod.
27
27
F . 9
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6. Lubricate the throat packings and glands. Install one
male gland (30†) in the throat cartridge (45), then
seven v-packings with the lips facing down: one
UHMWPE (27†), one leather (28†), UHMWPE,
leather, UHMWPE, leather, UHMWPE. Install the
female gland (29†). Install three v-packings with the
3A2023C
7. Install the o-ring (40†) on the throat cartridge (45).
8. Torque the cartridge (45) to 95-100 ft-lb (129-135
b
9. Reinstall the coupling nut and collars on the piston
a
10. Reconnect the coupling nut to the motor shaft. See
Lower Disassembly
NOTE: This pump is easiest to repair when left in the
Part No. 218742 accessory pump stand and disassem-
bled as instructed. For repair at a remote location, have
another pump stand available.
NOTE: Seal kits are available for each lower size. See
page 24. Kit parts are marked with an asterisk in the text
and drawings, for example (3*).
30
NOTE: Throat packing kits are available. See page 24.
Kit parts are marked with a symbol, for example (30†).
28
29 NOTE: Complete pump repair kits are also available.
The kits include all seal kit parts. See page 25.
1. Flush the pump, if possible.
28
2. Stop the pump at the middle of its stroke.
30
45 3. Relieve the pressure. See your separate pump
4. Remove the lower from the motor as described in
40
NOTE: See F
entire lower. See F
the lower and an exploded view of the throat packings.
lips facing up: UHMWPE, leather, UHMWPE. Install
the other male gland (30†). Also see page 23 for
additional information regarding torque and lubri-
cants for these parts.
Apply lubricant to the throat cartridge threads then
screw the cartridge into the outlet housing (1).
N•m).
rod (19).
your separate pump assembly manual for correct
torque specifications for your model.
manual.
your separate pump manual.
. 12, page 14 for an exploded view of the
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. 13, page 15 for a cutaway view of
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Repair - Model 24J090
11