320E and 323E Excavators Machine System Specifications Caterpillar


Boom Cylinder

Usage:

320E AWS


Illustration 1g02727187

Table 1
Specification for 341-2790 Boom Cylinder and Seal Gp 
Item  Qty  Part  Specification Description 
240-2913 Bushing  Bore before assembly is 80.20 ± 0.04 mm (3.157 ± 0.002 inch).
Installation depth is 10 mm (0.4 inch)
12  8T-1447 Bolt  Torque to 267 ± 40 N·m (197 ± 30 lb ft)
352-1096 Boom Cylinder As  Bore is 120 mm (4.7 inch)
352-1102 Rod As  Diameter is 85 mm (3.3 inch)
357-5717 Bushing  Bore before assembly is 80.32 ± 0.03 mm (3.162 ± 0.001 inch).
Installation depth is 10 mm (0.4 inch)
3B-8489 Grease Fitting  Torque to 9.32 ± 0.49 N·m (82.49 ± 4.34 lb in)
096-4402 Bushing  Outside diameter before assembly is 90 mm (3.5 inch).
Thickness is 2.47 mm (0.097 inch)
247-8864 Piston  Torque to 5460 ± 260 N·m (4027 ± 192 lb ft)
096-3216 Socket Setscrew  Torque to 56.9 ± 10.7 N·m (42.0 ± 7.9 lb ft).
After tightening the socket setscrew, stake the socket setscrew in two places. 

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