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16. Lubricate the throat packings and glands, and
install them in the outlet housing (19) one at a time
in the following order, with the lips of the v-pack-
ings facing down: the male gland (23*), one
UHMWPE v-packing (22*), one PTFE v-packing
(24*), UHMWPE (22*), PTFE(24*), UHMWPE
(22*), and the female gland (21*). Apply thread
lubricant to the packing nut (2) and install it loosely
in the outlet housing.
17. Lubricate the seal (39*) and place it on the top
edge of the cylinder (4). Set the outlet housing (19)
on top of the cylinder.
18. Install the six long capscrews (32) through the
outlet housing (19) and into the intake housing
(17). Using a socket wrench, torque the screws
oppositely and evenly to 244–264 N.m (180–195
ft–lb). Remove the pump from the vise and place it
on its side.
19. Check that the flats of the priming piston rod (12)
are accessible below the intake housing (17). If
not, tap on the top of the displacement rod (1) with
a rubber mallet, until the flats are exposed.
20. Slide the priming piston guide (13) onto the rod
(12) until it stops. Then install the priming piston
(15), with the flat side facing up toward the pump.
Apply thread sealant to the threads of the priming
piston nut (14). Hold the rod (12) steady with an
adjustable wrench on the flats, and screw the nut
(14) onto the rod with another wrench. Torque to
97–106 N.m (71–78 ft–lb). See Fig. 12.
24
308149
Service
13
15
1
1
Flat side must face up.
2
Apply thread sealant.
3
Torque to 97–106 N.m (71–78 ft–lb).
Fig. 12
21. Reconnect the displacement pump to the air motor
as explained on page 18.
22. Allow 2 hours for the thread sealant to cure before
returning the pump to service.
12
14
2
3
01165
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