320C and 322C Excavators Attachment Hydraulic System – Pilot Valve (Joystick)



Illustration 1 g01413064

Note: Apply 4C-9506 Retaining Compound to the nut.

(1) Torque for nut … 69 ± 5 N·m (50 ± 4 lb ft)

(2) Torque for plate … 69 ± 5 N·m (50 ± 4 lb ft)

(3) Torque for joint … 47 ± 3 N·m (35 ± 2 lb ft)

(4) Four 118-4087 Springs

Free length … 10.6 mm (0.42 inch)
Outside diameter … 5.5 mm (0.22 inch)

(5) Two 165-9460 Springs

Free length … 31.1 mm (1.22 inch)
Outside diameter … 8.6 mm (0.34 inch)

Two 225-4815 Springs

Free length … 32.0 mm (1.26 inch)
Outside diameter … 9.0 mm (0.35 inch)

Note: The 225-4815 Springs can replace the 165-9460 Springs in order to provide the operator with more finite control during machine operation.

(6) Four 165-9461 Springs

Free length … 40.9 mm (1.61 inch)
Outside diameter … 15.0 mm (0.59 inch)

Four 190-7750 Springs

Free length … 52.0 mm (2.05 inch)
Outside diameter … 15.0 mm (0.59 inch)

Note: The 190-7750 Springs can replace the 165-9461 Springs in order to reduce the operating torque to 70% of the original operating torque.

Four 190-7751 Springs

Free length … 60.1 mm (2.37 inch)
Outside diameter … 15.0 mm (0.59 inch)

Note: The 190-7751 Springs can replace the 165-9461 Springs in order to reduce the operating torque to 80% of the original operating torque.

(7) Two 165-9442 Springs

Free length … 29.7 mm (1.17 inch)
Outside diameter … 8.8 mm (0.35 inch)

Two 225-4816 Springs

Free length … 30.5 mm (1.20 inch)
Outside diameter … 8.7 mm (0.34 inch)

Note: The 225-4816 Springs can replace the 165-9442 Springs in order to provide the operator with more finite control during machine operation.

(8) Torque for two bolts … 21.0 ± 1.5 N·m (15 ± 1 lb ft)