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Displacement Pump Service
15. Screw the intake cylinder (19) into the intake
housing (17). Using a pipe wrench on the hex of
the cylinder (19), torque the cylinder to 468–590
N.m (345–435 ft-lb). This will also torque the intake
valve housing (17) and pump cylinder (10) into the
outlet housing (9). See Fig. 15.
16. Screw the bleeder valve plug (20) into the valve
body (29). The plug has two sets of threads. When
reassembling, be sure to screw the plug complete-
ly into the valve body. See Fig. 16.
17. Check that the flats of the priming piston rod (18)
are accessible below the intake cylinder (19). If
not, tap on the top of the displacement rod (1) with
a rubber mallet, until the flats are exposed.
18. Slide the priming piston (21) onto the rod (18) until
it stops. Hold the rod (18) steady with an adjust-
able wrench on the flats, and screw the seat (22)
onto the rod with another wrench. Torque to 77–85
N.m (57–63 ft-lb). See Fig.15.
19. Reconnect the displacement pump to the motor as
explained on page 19.
20. Allow 2 hours for the thread sealant to cure before
returning the pump to service.
04993
2
9
18
22
21
19
17a, b, c
10
Fig. 15
1
2
Torque to 468–590 N.m (345–435 ft-lb).
2
1
Torque to 77–85 N.m (57–63 ft-lb).
1