Graco HIGH–FLO 243737 Instructions Manual page 18

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NOTES:
1. This repair procedure can be used for any High-
Flo pump model. The reference numbers used in
the text and illustrations correspond to all of the
displacement pump parts drawings.
2. Packing repair kits are available for each pump.
Refer to the parts pages for your pump. Parts
included in the pump seal repair kit are marked
with an asterisk in the text (for example, 16*).
Parts included in the throat packing kit are marked
with a symbol (for example, 39{). Conversion kits
are also available. See page 30. Use all the new
parts in the kits for the best results.
3. This pump is easiest to repair when left in the Part
No. 218742 accessory pump stand and disas-
sembled as instructed. For repair at a remote
location, have another pump stand available.
4. When reassembling, apply anti-seize lubricant
222955 on the threads of the piston shaft (29) and
piston (23).
Seat Puller Kit 220384
KEY
S
Seat (item 21 or 46)
X
108481 Bolt
Y
181630 Seat Puller
Z
181629 Seat Puller
X
Y
Screw bolt (X) into Seat Puller (Y).
Fig. 9
18
309136
Service
Displacement Pump Repair
1. Use a 13 mm socket wrench to loosen and remove
2. Lift the manifold (1) off the outlet valve housing (5)
NOTE: Seat Puller Kit 220384 is available to make
removal of the seats from the manifolds easier. See
Fig. 9.
Be careful not to drop or damage the balls (13) or
seats (17). A damaged ball or seat cannot seal
properly and the pump will leak. The outlet valve
seats (17) can be reversed to provide longer use of
the seat.
Position Seat Puller (Y) under the seat (21
or 46) by slipping it through at an angle.
the twelve capscrews (2) and lockwashers (3) on
the outlet manifold (1). See Fig.16.
and remove the ball guides (14), balls (13), seats
(17) and seals (15). Remove the o-ring (16) from
the seats (17).
CAUTION
S
Z
Y
Place Seat Puller (Z) on top of seat.
Turn bolt (X) to pull the seat out.
X
01414

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