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Displacement Pump Repair
A
into manifold
(101) to
Torque cylinder (1
15)
53ft-lb (71
N.m)
Torque intake valve
(I
16)
A
into cylinder
(115)
to
53ft-lb (71 N.m)
A
Piston assembly
11. Place a new O-ring (1 16*) firmly in the cylinder
groove. See Fig. 23.
12. Coat the piston rod and packings with oil. Care-
fully slide the assembly into
the top of
the cylin-
der (1
15).
See Fig. 23.
1 3 . Put the manifold in a vise. Fully thread the jam nut
(1 17) onto the cylinder (1 15). Guide the rod/
cylinder assembly down through the manifold
(101).
Screw the cylinder
(1 15)
into the manifold.
See Fig. 23.
14.
Place the ball guide (120), stop pin (122) and ball
(121*) in the cylinder (1
15). Screw the intake
valve into the cylinder and torque to 53
ft-lb
( 7 1 Nm). This will also properly torque the
cylinder into the manifold. See Fig. 23.
15. Torque the cylinder jam nut (1
17) to 73 ft-lb
(98
Nm). See Fig. 23.
16. Install the pump. See page
22.
Fig. 23
01072A
308-216 25
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