Graco A Series Instructions-Parts List Manual page 25

12. Coat the piston rod and packings with oil. Carefully
slide the assembly INTO THE TOP OF THE
CYLINDER (115). See Fig. 24.
13. Put the manifold in a vise. Fully thread the jam nut
(117) onto the cylinder (115). Guide the rod/cylind-
er assembly down through the manifold (101).
Screw the cylinder (115) into the manifold.
14. Place the ball guide (120), stop pin (122) and ball
(121*) in the cylinder (115). Screw the intake valve
into the cylinder and torque to 71 N.m. This will
also properly torque the cylinder into the manifold.
See Fig. 25.
Torque cylinder (115) into manifold (101)
A
to 71 N.m
B Torque jam nut (117) 98 N.m
Torque intake valve (118) into cylinder
C
(115) to 71 N.m
D
Piston assembly
D
Fig. 24
Displacement Pump
102
101
107
116*
117
B
115
A
118
C
01072A
15. Tighten the cylinder jam nut (117) to 98 N.m. See
Fig. 24.
16. Install the pump. See page 22.
Leather throat packings:
E
lips must face down
F
Leather piston packings:
lips must face up
*103
*105
E
*116
110
*111
*113
F
108
115
120
*119
118
G
Fig. 25
Torque to 71 N.m
G
Plastic throat packings:
H
lips must face down
Plastic piston packings:
J
lips must face up
107
123
102
104*
H
106*
101
117
112*
J
114*
125*
126*
122*
121*
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