Repair the Pump Lower
311882U 19
8. Pull transfer shaft (20) out the bottom of pump body
(34). See F
IG. 19.
9. Remove pin (56). Remove piston valve assembly.
Unscrew piston valve (43) from piston housing (53).
Remove wear ring (41*), u-cup (40*) and ball (42).
Inspect all parts for damage. See F
IG. 20.
10. Remove pins (55). See F
IG. 21.
NOTE: Series A and B pumps were equipped with
springs pins. In Series C pumps, these pins were
replaced with a solid clevis pin (55, 56).
11. Loosen set screw (37) from collar (36). Remove
collar from piston housing (54). Remove u-cup
(35*). Inspect all parts for damage. See F
IG. 22.
FIG. 19
FIG. 20
ti9904b
56
*40
*41
42
43
53
Lip up
FIG. 21
FIG. 22
55
54
74
r_311880_14e_fig21
36
35
55
37
36
*35
54
Lip down
r_311882_14e_fig22