25
Install wrist pin bushings (
12
) through
crank rod (
7
) and into wrist pin
anchor (
13
) (
† Fig. 15
).
26
Apply Loctite 242 to threads of wrist pin
bushing screws (
11
).
27
Insert and thread wrist pin bushing
screws (
11
) into crank rod (
7
).
28
Torque bushing screws (
7
) to torque of
110–125 in.lbf
(12,4–14,1 Nm)
.
29
Install cup seal (
26
) with slotted side
toward center of reciprocating tube (
25
)
(
† Fig. 19
).
30
Place new o-ring (
27
) on lower bushing
and plunger (
24
).
31
Slide lower bushing and plunger (
24
)
into reciprocating tube (
25
) with
o-ring (
27
) near bottom of reciprocating
tube (
25
) (
† Fig. 19
).
32
Install steel check cage (
28
) into
reciprocating tube (
25
).
33
Install ball (
29
) into steel check cage (
28
).
34
Apply Loctite 242 or equivalent to
threads of check seat housing (
30
).
42
Position crank rod assembly (
7
) over top
of pump housing (
37
) and lower into
pump housing (
37
).
43
Align crank rod (
7
) with shaft (
40
)
mounting hole (
† Fig. 21
).
7
12
11
56
57
58
59
60
35
Thread check seat housing (
30
) into
reciprocating tube (
25
) and tighten using
3
/
8
in hex key.
36
Torque to 20–25 ft.lbf
(27–33 Nm)
.
37
Remove crank rod (
7
) from vise.
38
Refer to
Fig. 20
and insert o-ring (
59
)
into housing tube (
60
).
39
Place back up washer (
58
) into housing
tube (
60
).
40
Insert o-ring (
57
) into housing tube (
60
).
41
Insert bronze bearing (
56
) into
housing tube (
60
).
25
24
27
26
28
29
30
44
While aligning key (
39
) on shaft (
40
) with
eccentric key way (
5
), slide shaft (
40
) into
eccentric (
5
) (
† Fig. 22
).
45
Install retaining ring (
48
) on shaft. (
40
).
46
Install shaft cover (
46
) on pump (
37
)
(
† Fig. 21
).
47
Insert and thread screws (
44
) with
lock washers (
45
) into shaft cover (
46
)
and pump housing (
37
).
39
40
37
7
44
45
46
47
48
5
NOTE
Failure to align key on shaft and key way in
eccentric will result in damage to equipment.
NOTE
For ease of installation of lower cup, use
small piece of tubing to slide lower up into
reciprocating tube and over pump plunger.
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Fig. 22
12
