320C and 322C Excavators Attachment Hydraulic System – Bucket Cylinder



Illustration 1 g00760903

Cylinder stroke … 1030 mm (40.551 inch)

(1) Torque for two fittings … 9.3 ± 4.9 N·m (82.31 ± 43.37 lb in)

Note: Make sure that the bearings are installed in the bore so that the identification numbers of the bearings are facing outward.

(2) 240-2914 Bushing

Outside diameter … 95.18 ± 0.013 mm (3.747 ± 0.0005 inch)
Inside diameter … 80.20 ± 0.04 mm (3.157 ± 0.002 inch)
Install the bearing in the bearing bore. … Centered

(3) 163-3748 Sleeve Bearing

Outside diameter … 85.102 ± 0.011 mm (3.3505 ± 0.0004 inch)
Inside diameter … 70.11 ± 0.02 mm (2.760 ± 0.001 inch)
Install the bearing in the bearing bore. … Centered

(4) Bore of head … 85 mm (3.346 inch)

(5) Torque for 12 bolts … 267 ± 40 N·m (197 ± 30 lb ft)

(6) Bore of cylinder … 120 mm (4.724 inch)

(7) Rod assembly

Diameter of rod … 85 mm (3.346 inch)
Minimum thickness for plating … 0.03 mm (0.001 inch)

(8) Torque for locknut … 7160 ± 360 N·m (5281 ± 266 lb ft)

(9) After tightening the setscrew (9) , stake the setscrew in two places.

Torque for setscrew … 57 ± 10 N·m (42 ± 7 lb ft)