EPC Parts Catalogs

314F and 315F Excavators Machine System Specifications Boom Cylinder Caterpillar


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Boom Cylinder
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314F and 315F Excavators Machine System Specifications [UENR5657]
314F and 315F Excavators Machine System Specifications Pump Lines
314F and 315F Excavators Machine System Specifications Front Lines
HYDRAULIC SYSTEM
CYLINDER GP
311D Excavator Machine System Specifications Boom Cylinder - VA
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314E Excavator Machine System Specifications Boom Cylinder Lines
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Illustration 1g06030755

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Table 1
Specification for 415-6387 Boom Cylinder and Seal Gp 
Item  Qty  Part  Specification Description 
1  1  273-6945 Bushing  Bore diameter before assembly is 60.124 ± 0.040 mm (2.3670 ± 0.0015 inch). 
Installation depth is 10.0 mm (0.40 inch).
2  15  3E-6910 Bolt  Torque to 92.4 ± 17.5 N·m (68.2 ± 12.9 lb ft). 
3  1  290-9178 Bushing  Bore diameter is 80.20 ± 0.04 mm (3.157 ± 0.002 inch). 
Installation depth is 10.0 mm (0.40 inch).
4  1  3B-8489 Grease Fitting  Torque to 9.32 ± 0.49 N·m (82.49 ± 4.34 lb in). 
5  1  390-4197 Socket Setscrew  Torque to 31.5 ± 5.9 N·m (278.8 ± 52.2 lb in). 
After tightening the setscrew, stake the setscrew in two places.
6  1  390-4194 Piston  Torque to 4000 ± 400 N·m (2950 ± 295 lb ft). 
B  1  390-4188 Boom Cylinder As  Bore diameter is 110 mm (4.3 inch). 
C  1  390-4189 Rod As  Diameter is 75.0 mm (2.95 inch). 
D  1  390-4190 Head  Bore over two lands is 75.0 mm (2.95 inch). 

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