DISPLACEMENT PUMP
Reassembly Procedure
1.
Stack these parts one at a time onto the piston valve
(224): backup washer (219*), U–cup seal (205*)
lips
down, and female gland (220*), alternate the polyeth-
ylene and leather v–packings (217*, 208*)
lips up, and
then the male gland (213*). See Fig 19–1.
NOTE AND MAINTAIN
THIS ALIGNMENT
THROUGHOUT STEPS
2, 3 and 4
Fig 19–2
TORQUE NUT TO
3–4 in-lb
(0.34–0.35 N.m)
APPLY ONE DROP
OF SEALANT TO
THESE THREADS
203*
224
214
0082
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 19–2.
NOTE: NOTE THE ALIGNMENT of the piston (224) to
the nut (214). Maintain this alignment through-
out Steps 2, 3 and 4.
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 19–2. 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.
Fig 19–3
214
TORQUE NUT AGAINST ROD
TO 19 ft-lb (25 N.m)
223
DO NOT ALLOW THIS
NUT TO MOVE RELATIVE
TO THE PISTON (224)
WHEN INSTALLING
PISTON ONTO ROD
0083
4.
Torque the nut (214) against the rod (223) to 19 ft–lb
(25 N.m). Use two wrenches to maintain the align-
ment as mentioned in the NOTE above. See Fig
19–3.
5.
Stack these parts one at a time into the top of the cyl-
inder (216): male gland (211*), alternate the polyeth-
ylene and leather v–packings (218*, 209*)
lips down,
and then the female gland (212*). See Fig 19–1.
6.
Loosely install the packing nut (221) and plug (201).
7.
Insert the oiled piston rod (223) through the bottom of
the cylinder.
8.
Assemble the intake valve. Use a new gasket (206*).
Screw the intake valve into the cylinder and tighten to
80 ft–lb (107 N.m). See Fig 19–1.
9.
Screw down the cylinder locknut (112) until it is finger
tight at the bottom of the external cylinder threads.
See Fig 19–1.
10. Install the displacement pump on the sprayer. See
page18.
LEATHER
Lips must
face up
*208
216
Fig 19–1
201
223
*204
215
222
206*
207*
POLY
Lips must
face up
217*
POLY
Lips must
face down
218*
LEATHER
Lips must
face down
*209
224
Lips of seal
must face
down
205*
203*
*212
TORQUE TO
80 ft–lb
(107 N.m)
221
112
214
*211
*219
*220
*213
Содержание 220-726
Страница 35: ... NOTES ...