Repair
4. Push down on the pump connecting rod |
(37) until fluid piston assembly is clear of |
displacement pump frame (36). Pull the |
piston assembly and connecting rod out of |
the frame. Remove the bearing (31) and |
5.Unscrew the piston body (23) from the pis- ton valve housing on the fluid piston rod (19).
seal (51) from the frame. |
37
51 31
★ 36
TI17180b
★Support the Series A and B pump frame with a strap wrench. Series C pumps have wrench flats.
FIG. 16
21
22
21
23
FIG. 17
20
3
19
ti11660a
Scoring or irregular surfaces on the connecting rods (37, 19) or polished inner wall of the pump frame (36) and piston cylinder (58) can cause prema- ture packing wear and leaking. To check these parts, rub a finger over the surface or hold the part up to the light at an angle. Replace if neces- sary.
6.Unscrew the fluid piston rod (19) from the pump connecting rod (37). Remove the cup packing (17) and bearing (18).
18
17
19
37
312766D_no seal
FIG. 18
18 | 312766N |
