319D Excavator Machine System Specifications Caterpillar


Boom Cylinder

Usage:

319D L AYF



Illustration 1g03644784

(1) Torque for 12 bolts ... 267 ± 40 N·m (195 ± 30 lb ft)

Note: During the press fit, insert the sleeve bearing (2) in the rod assembly with the tapered side first.

(2) 241-7380 Sleeve Bearing

Inside diameter before assembly ... 80.12 ± 0.02 mm (3.154 ± 0.001 inch)
Installation depth of the sleeve bearing ... 10 mm (0.4 inch)

Note: During the press fit, insert the sleeve bearing (3) in the cylinder assembly with the tapered side first.

(3) 260-2529 Sleeve Bearing

Inside diameter before assembly ... 90.16 ± 0.02 mm (3.550 ± 0.001 inch)
Installation depth of the sleeve bearing ... 10 mm (0.4 inch)

(4) Torque for the grease fitting ... 9.32 ± 4.90 N·m (85 ± 45 lb in)

(C) Diameter of the rod assembly ... 85 mm (3.3 inch)

(5) 096-4402 Sleeve Bearing

Outside diameter ... 90 mm (3.5 inch)
Thickness ... 2.47 mm (0.097 inch)

(D) Bore of the cylinder assembly ... 120 mm (4.7 inch)

(6) Torque for the piston ... 5460 ± 260 N·m (4020 ± 190 lb ft)

(7) Torque for the socket setscrew ... 56.9 ± 10.7 N·m (42 ± 8 lb ft)

Note: After tightening the socket setscrew (7) , stake the socket setscrew in two places.

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