Service Manual

27
1
2
3
4
5
6
7
8
9
10
16
17
18
19
20
21
22
23
24
25
26
11
12
13
14
15
12
11
4
4
12
28
12 – 15 ft–lb
(16 – 10 Nm)
9.5 – 12.5 ft–lb
(13 – 17 Nm)
Figure 20
1. Retaining ring 11. Gear 20. Ball
2. Oil seal 12. Bearing 21. Spring
3. Spacer 13. Pressure plate 22. Adjusting screw
4. Crescent ring 14. Back–up seal 23. Copper gasket
5. Square key 15. Pressure plate seal 24. Relief valve cap
6. Driveshaft 16. Dowel pin 25. Idler shaft
7. Shear pin 17. Gear end housing 26. Seal
8. Stator 18. Socket head capscrew 27. Bearing
9. Seal plate 19. Plug 28. Ball Key
10. Wear plate
Relief Valve Service 4. Clean and dry all parts. Apply clean hydraulic oil to
parts.
1. Remove cap (Item 24). Remove o–ring (Item 23) from
cap. 5.
Install ball (Item 20), spring (Item 21) and adjusting
screw (Item 22).
2. Remove adjusting screw (Item 22), spring (Item 21)
a
nd ball (Item 20). NOTE: Count number of turns it takes 6. Install new o–ring (Item 23). Apply clean hydraulic oil
to unthread adjusting screw so it can be reinstalled for to o–ring and install cap (Item 24).
the same approximate pressure setting.
7. Check relief pressure and adjust if necessary after
3. Inspect ball for burrs or roughness. Inspect relief installing
pump in machine (see TEST NO.1 – Pump
valve bore and seat inside gear end housing (Item 17). Flow and Relief Pressure).
Inspect spring for damage. Replace any worn or dam-
aged parts.
Hydraulic System Page 9
– 22 Workman 3000/4000 Series