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9
306–646
9. Carefully
guide
the intake valve housing (28) up over
the
priming rod (32) and install it on the cylinder (39).
Insert
the four tie bolts (8) through the outlet housing
(26)
and engage the holes in the intake valve hous
-
ing. T
orque the tie bolts oppositely and evenly to 60
ft–lb (82 N.m).
10. Install
the
plate guide (31), plate (36), priming piston
(37)
and
nut (6) on the priming rod (32). If necessary
,
push down on the displacement rod (18) to provide
sufficient clearance from the intake valve housing
(28).
11.
T
ighten the packing nut/wet–cup (21) just enough to
prevent
leakage – no tighter
.
12. Check
the alignment of the displacement rod (18) by
inserting
a size
E (0.254 in. diameter) drill shank be
-
tween the packing nut/wet–cup (21) and the rod. If
the drill shank cannot be passed freely around the
rod,
tighten the
tie bolt (8) on the side which is bind
-
ing.
13. Screw the connecting rod (53) into the upper cap
(33).
Insert the cotter pin (42) and tighten the locknut
(45).
14. Align
the pump
outlet on the outlet housing (26) with
the optional outlet at the base of the air motor (1).
Loosely screw the tie rod locknuts (44) onto the tie
rods (52). Lubricate the o–ring (47) and the top
thread of the connecting rod (53). TIghten the cou-
pling
nut (50) to attach the displacement pump to the
motor.
Insert the cotter pin (41).
15. Start
the pump and run it slowly to check for binding.
Adjust the tie rods as necessary , then torque the
locknuts
(44) to 40–50 ft–lb (54–68 N.m).
16. Reconnect the fluid and air lines. Reconnect the
ground
wire if it was disconnected during service.
Fig 2
50
53
45
42
20
21
52
26
SEE
DET
AIL A
19
34
SEE DET
AIL B
38
SEE DET
AIL C
3
30
6
36
37
28
31
32
11
28
*27
29
7
39
*15
4
33
41
8
TORQUE TO
60 ft–lb
(82 N.m)
17*
DISPLACEMENT
PUMP 204–641
DETAIL
C
DET
AIL B
DET
AIL A
44
TORQUE T
O
40–50 ft–lb
(54–68 N.m)
21
REF
26
REF
LIPS
OF
V–PACKINGS
MUST
FACE
DOWN
LIPS OF
V–PACKINGS
MUST
F
ACE UP
LIPS OF
P
ACKING
MUST
F
ACE UP
11
REF
3
REF
*56
*35
38
REF
18
27*
REF.
NO. 2
DISPLACEMENT
PUMP INCLUDES
ITEMS 3–39, 56–66
18
REF
64*
THROAT
GLAND/
PACKING
STACK
*65
INTAKE
VALVE
GLAND/
PACKING
STACK
66