Displacement Pump - Graco 224–605 Owner's Manual

Reassembly Procedure
1. Stack the backup washer (219*), U–cup seal
(205*) lips down , and female gland (220*), al-
ternate the polyethylene and leather v–pack-
ings (217*, 208*) lips up, and stack the male
gland (213*) onto the piston valve (224). See
Fig 14.
2. Tighten the packing retaining nut (214)
against the gland (213) and torque to 3–4 in–
lb (0.34 – 0.35 N.m). See Fig 12.
NOTE: NOTE THE ALIGNMENT of the piston
(224) to the nut (214). Maintain this align-
ment throughout Steps 2, 3 and 4.
214
TORQUE NUT TO
3–4 in-lb
(0.34–0.35 N.m)
Fig 12
3. Apply 1 drop only of sealant, supplied with the
repair kit, to the piston valve threads. Place
the small ball (203*) on the valve. See Fig 12.
Hand tighten the valve into the rod (223) just
until the nut contacts the rod. Place the flats of
the displacement rod in a vise.
214
TORQUE NUT AGAINST ROD
TO 19 ft-lb (25 N.m)
DO NOT ALLOW THIS
NUT TO MOVE RELATIVE
TO THE PISTON (224)
WHEN INSTALLING
PISTON ONTO ROD
Fig 13
4. Torque the nut (214) against the rod (223) to
19 ft–lb (25 N.m). Use two wrenches to main-
tain the alignment as mentioned in the NOTE.
See Fig 13.
5. One at a time, stack these parts into the top of
the cylinder (216): male gland (211*), alter-
nately the polyethylene and leather v–pack-
ings (218*, 209*) lips down, female gland
(212*). See Fig 14.

DISPLACEMENT PUMP

203*
APPLY ONE DROP
OF SEALANT TO
THESE THREADS
NOTE AND MAINTAIN
THIS ALIGNMENT
THROUGHOUT STEPS
2, 3 and 4
224
0082
LEATHER
Lips must
face down
223
LEATHER
Lips must
0083
Fig 14
6. Loosely install the packing nut (221) and plug
(201).
7. Insert the oiled piston rod (223) into the bot-
tom of the cylinder.
8. Assemble the intake valve. Use a new gasket
(206*). Screw the valve into the cylinder and
tighten to 80 ft–lb (107 N.m). See Fig 14.
9. Screw down the cylinder locknut (31) until it is
finger tight at the bottom of the external cylin-
der threads. See Fig 14.
10. Install the displacement pump on the sprayer.
See page 16.
*212
*209
*211
224
*213
*208
face up
*220
*219
216
215
*204
223
201
221
31
218*
POLY
Lips must
face down
203*
214
217*
POLY
Lips must
face up
205*
Lips of seal
must face
down
207*
206*
222
TORQUE TO
80 ft–lb
(107 N.m)