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



Illustration 1 g00760653

(1) Torque for nut … 7900 ± 400 N·m (5827 ± 295 lb ft)

(2) Lubricate the inside diameter and outside diameter with clean grease.

(3) The slit in the ring must turn in the direction of the piston.

(4) Rod assembly

Outside diameter … 99.93 ± 0.03 mm (3.9 ± 0.001 inch)
Plating thickness … 0.020 mm (0.0008 inch)
Minimum thickness for plating … 0.014 mm (0.0006 inch)

(5) Torque for eight bolts … 800 ± 100 N·m (590 ± 74 lb ft)

(6) Bore of head … 100.73 ± 0.03 mm (3.9657 ± 0.0012 inch)

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

(7) 163-3747 Sleeve Bearing

Outside diameter … 95.102 ± 0.011 mm (3.7442 ± 0.0004 inch)
Inside diameter … 80.250 ± .020 mm (3.1594 ± 0.0008 inch)
Install the bearing in the bearing bore. … centered

(8) Lubricate the sealing lip slightly with the lubricant that is being sealed.

Quantity … 4
Install the seal in the bearing bore. … 1.00 ± 0.50 mm (0.039 ± 0.020 inch)

(9) Bore of cylinder … 139.20 ± .30 mm (5.480 ± 0.012 inch)

(10) Torque for fitting … 9.3 ± 4.9 N·m (82 ± 43 lb in)

Note: The stop must have free, linear movement after assembly.

(11) The free, linear movement of the stop after assembly … 50 ± 0.26 mm (1.9685 ± 0.0102 inch)

(12) Maximum outer diameter of ring after assembly … 70.4 mm (2.7716 inch)

(13) Prior to assembly, apply 7M-7456 Bearing Mount Compound to the groove for the wiper seal.