Hitachi ZW 550-6 Operator's Manual page 414

23. Space edge (segment) mounting bolt
Bolt diameter
Quantity
Wrench size
Tightening torque 2402 N·m (245 kgf·m, 1772 lbf·ft)
24. Wear plate mounting bolt
Bolt diameter
Quantity
Wrench size
Tightening torque 834 N·m (85 kgf·m, 615 lbf·ft)
25. Combination valve mounting bolt
Bolt diameter
Quantity
Wrench size
Tightening torque 50 N·m (5 kgf·m, 37 lbf·ft)
MAINTENANCE
1-1/4-7UNC in
21
51 mm
7/8-9UNC in
8
36 mm
10 mm (0.39 in)
4
14 mm
7-130
115Z7-7-95-1a
90Z7-7-113-2
115Z7B-1-142-4