320B Excavator Machine System Specifications Caterpillar


Bucket Cylinder

Usage:

320B 4NR

Table 1
Specifications for Bucket Cylinders    
Part Number for Bucket Cylinder and Seal Group     133-6868 (1)     118-3967 (1)     171-3379 (2)     154-0743 (2)     176-4911 (2)    
(1) Bearing     119-5229    
Outside Diameter    
90 mm (3.543 inch)    
Inside Diameter    
80 mm (3.150 inch)    
(2) Bearing     119-5228    
Outside Diameter    
80 mm (3.150 inch)    
Inside Diameter    
70 mm (2.756 inch)    
(3) Torque For 2 Fittings    
10 ± 5 N·m (90 ± 40 lb in)    
(4) Torque for 12 Bolts    
270 ± 40 N·m (200 ± 30 lb ft)    
(5) Torque for Locknut    
7150 ± 350 N·m (5280 ± 250 lb ft)    
(6) Torque For Setscrew    
60 ± 10 N·m (42 ± 7 lb ft)    
(7) Rod Diameter    
85 mm (3.346 inch)    
Minimum Thickness for Plating    
0.03 mm (0.0012 inch)    
(8) Bore of Head    
85 mm (3.346 inch)    
(9) Bore of Cylinder    
120 mm (4.724 inch)    
(10)     The position that is shown is for the slits that are in the seal.    
( 1 ) Use Illustration 1.
( 2 ) Use Illustration 2.



Illustration 1g01003172



Illustration 2g01003175

Table 2
Specifications for Bucket Cylinders    
Part Number for Bucket Cylinder and Seal Group     133-6867 (3)     118-3953 (4)     154-0772 (5)     123-2084 (5)     134-6987 (6)    
(1) Bearing     119-5214     119-5325     6E-3535    
Outside Diameter    
90 mm (3.543 inch)    

95 mm (3.740 inch)    

75.14 mm (2.9583 inch)    
Inside Diameter    
80 mm (3.150 inch)    

60.18 mm (2.3693 inch)    
(2) Bearing     119-5214     119-5324     6E-3535    
Outside Diameter    
90 mm (3.543 inch)    

85 mm (3.346 inch)    

75.14 mm (2.9583 inch)    
Inside Diameter    
80 mm (3.150 inch)    

70 mm (2.756 inch)    

60.18 mm (2.3693 inch)    
(3) Torque For 2 Fittings    
10 ± 5 N·m (90 ± 40 lb in)    
(4) Torque for 12 Bolts    
370 ± 50 N·m (270 ± 40 lb ft)    
N/A    
(4) Torque for Head     N/A    
650 ± 70 N·m (480 ± 50 lb ft)    
(5) Torque for Locknut    
12000 ± 500 N·m (8800 ± 370 lb ft)    

9500 ± 500 N·m (7000 ± 370 lb ft)    

2650 ± 150 N·m (1950 ± 110 lb ft)    
(6) Torque For Setscrew    
60 ± 10 N·m (45 ± 7 lb ft)    
N/A    
(7) Rod Diameter    
100 mm (3.937 inch)    

90 mm (3.543 inch)    

64.93 mm (2.556 inch)    
Minimum Thickness for Plating    
0.03 mm (0.0012 inch)    
(8) Bore of Head    
100 mm (3.937 inch)    

90 mm (3.543 inch)    

65.63 mm (2.584 inch)    
(9) Bore of Cylinder    
140 mm (5.512 inch)    

130 mm (5.118 inch)    

100 mm (3.937 inch)    
(10)     The position that is shown is for the slits that are in the seal.     N/A    
(11)     The position that is shown is for the slit that is in the rings.     N/A    
( 3 ) Use Illustration 3.
( 4 ) Use Illustration 4.
( 5 ) Use Illustration 5.
( 6 ) Use Illustration 6.



Illustration 3g01003178



Illustration 4g01003181



Illustration 5g01003182



Illustration 6g00908675

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