50
9. joint 8-2xM16x1.5-60°
10. hydraulic hose assembly
8-L2700-1SC-60°
11. hydraulic hose assembly 8-L3000-1SC-60°
12. hydraulic hose assembly
(90°)13-L2750-2SC-60°
13. joint 12-G1/2-M22x1.5-60°
14. transition pipe welding
15. washer GB97.1-6-200HV
16. washer GB93-6
17. screw GB70.1-M6x20-8.8
18. joint 16-M22x1.5-%c25
19. rubber hose
20. joint 8-M18x1.5-M16x1.5-60°
21. joint 11-M18x1.5-0
22. joint 6-M12x1.5-M14x1.5-60°
23. hydraulic hose assembly 8-L2700-1SC-60°
24. hydraulic hose assembly
8-L3000-1SC-60°
25. O ring 19x2.65
26. joint 12-2xM22x1.5-60°
27. joint 8-M20x1.5-M16x1.5-60°
28. joint 7-2xM14x1.5-M16x1.5-60°
29. O ring 17x2.65
30. joint 12-M20x1.5-M22x1.5-60°
31. joint 6-M20x1.5-M14x1.5-60°
32. hydraulic hose assembly
6-L1000-1SC-60°
33. hydraulic hose assembly 6-L1100-1SC-60°
34. joint 6-G1/4-M14x1.5-60°
35. O ring 11.2x2.65
36. rubber hose fixing plate
37. rubber hose fixing plate
38. screw GB70.1-M8x35-8.8
39. hydraulic hose assembly
(90°)8-L1420-1SC-60°
40. joint 7-2xM14x1.5-M16x1.5-60°
41. hydraulic hose assembly 6-L600-1SC-60°
figure2-61 hydraulic pipeline
6.8 Maintenance and adjustment
Working cylinder maintenance
(1) Disassemble
Cleaning thoroughly before assembling. Dismantled parts shall be on clean paper or cloth and
don’t contaminate or damage parts.
(a) Clamp flange shell of pump by bench vice
(b) Screw off bolt 11, rear end cover 5 and pump body 1.
(c) Dismantle lining slice 6, drive gear 2 and driven gear 3.
(d) Dismantle seal 7 and retainer ring 8 from front and rear end cover.
Notice: if don’t renew seal, please do not remove it from front end.
(2) Inspection
Use gasoline to clean parts (except rubber parts).
(a) Pump body inspection
If contact length between pump body and gear is more than 1/2 circumference, please
replace pump body.
Figure 2-62 figure 2-63
(b) Lining slice inspection
Check interface of lining slice, if surface damage or thickness of lining slice is less than
normal value
:
4.94mm, please replace it.