UPPERSTRUCTURE / Control Valve Assemble Bucket Flow Rate Control Valve 16. Install O-rings (95, 90) to plugs (96, 89). 17. Install spring (93), spool (92), spring seat (94) and plug (96) to body (91). 18. Install plug (89) to body (91). 19. Install poppets (83, 84), spring (85), plug (86), spring (87) and sleeve (88) to housing (1). 20. Install O-rings (13, 77) to housing (1). Install body (91) to housing (1) with socket bolts (97) (4 used). Assemble Bypass Shut-Out Valve 23. Install spool (105), spring (106) and O-ring (4) to housing (1). Install flange (107) to housing (1) with socket bolts (6) (4 used). : 61 N m (6.2 kgf m, 45 lbf ft) Assemble Overload Relief Valve IMPORTANT:
If the overload relief valve is disassembled, pressure must be adjusted. (Refer to the Operational Performance Test section / TROUBLESHOOTING in the separated volume, T/M.) 24. Install O-rings (19) (4 used) to overload relief valves (20, 74) (2 used for each). Install overload relief valves (20, 74) (2 used for each) to housing (1). : 8 mm : 8 mm : 61 N m (6.2 kgf m, 45 lbf ft) Assemble Flow Combiner Valve 21. Install spring seat (71), spring (72) and spring (71) to bolt (70). Install bolt (70) to spool (73). 22. Install spool (73) and O-ring (4) to housing (1). Install cap (69) to housing (1) with socket bolts (68) (2 used). : 32 mm : 83 N m (8.5 kgf m, 61 lbf ft) : 5 mm :
10 N m (1.0 kgf m 7.4 lbf ft) W2-5-27