Displacement Pump Repair
10. Coat the piston rod and packings with oil. Careful-
SLEEVE.
ly
slide the assembly
INTO THE TOP
OF
THE
NOm
The
tapered end
of
the sleeve
is
the bottom
of
11. Place a new O-ring (202') firmly in the cylinder
it.
See Fig.
30.
groove. See Fig.
29
ASSEMBLY
PISTON
I
END
Fig.
30
Qm
12. Slide the sleeve/piston rod assembly
INTO THE
BOTTOM
OF
THE CYLINDER.
This
is to prevent
packing damage during reassembly. See Fig. 30.
finger tight at the bottom
of
the external cylinder
threads.
13. Screw down the cylinder locknut
(47)
until it
is
14.
Place the flats
of
the intake valve (223) in a vise.
der into the valve. Torque to
67 ft-lb
(90
Nm). See
Install a new O-ring
(202*).
Screw the pump cylin-
Fig.
29.
15. Install the pump.
32
308-560
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