349F and 352F Excavators Machine System Specifications Caterpillar


Boom Cylinder

Usage:

352F-VG A9J


Illustration 1g06095656

Table 1
Specification for 419-5749 Boom Cylinder Gp 
Item  Qty  Part  Specification Description 
191-5644 Bushing  Outside diameter is 120.148 ± 0.032 mm (4.7302 ± 0.0013 inch).
Thickness is 2.475 ± 0.025 mm (0.0974 ± 0.0010 inch)
324-9484 Buffer Seal  Lubricate the sealing lip lightly with the lubricant that is being sealed. 
324-9486 U-Cup Seal  Lubricate the sealing lip lightly with the lubricant that is being sealed. 
191-5648 Lip Type Seal  Lubricate the sealing lip lightly with the lubricant that is being sealed. 
Before assembly, apply green Loctite 609 to the wiper seal groove. 
191-5604 Ring  Lubricate the inside diameter and the outside diameter with hydraulic oil. 
506-2322 Seal As  Lubricate the inside diameter and the outside diameter with hydraulic oil. 
191-5605 Ring  Lubricate the inside diameter and the outside diameter with hydraulic oil. 
358-8440 Cylinder As  Bore is 170.050 ± 0.025 mm (6.6949 ± 0.0010 inch)
358-8450 Rod As  Diameter is 114.930 ± 0.038 mm (4.5248 ± 0.0015 inch)
375-1723 Head  Bore over two lands is 115.63 ± 0.03 mm (4.552 ± 0.001 inch)
7Y-4956 Locknut  Before assembly, lubricate the face and all around the threads with 309-6932 Hydraulic Oil.
Torque to 15500 ± 800 N·m (11432 ± 590 lb ft)
10  231-6843 Seal Ring  The slit must be turned in the direction of piston. 
11  332-4991 Bushing  Bore before assembly is 120.259 ± 0.040 mm (4.7346 ± 0.0016 inch).
Installation depth is 9.85 ± 0.30 mm (0.388 ± 0.012 inch)
12  228-5621 Bushing  Bore before assembly is 120.259 ± 0.040 mm (4.7346 ± 0.0016 inch).
Installation depth is 5.0 ± 0.5 mm (0.20 ± 0.02 inch)
13  7Y-5239 Bolt  Torque to 300 ± 30 N·m (221 ± 22 lb ft).
Turn an additional 30 ± 5 degrees. 

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