330D, 336D, 336D2, 340D and 340D2 Excavators Machine System Specifications – Boom Cylinder



Illustration 1 g02948036
Table 1
Specification for 358-5972 Boom Cylinder Gp    
Item     Qty     Part     Specification Description    
1     1     241-7280 Bushing     Bore before assembly is 100.29 ± 0.04 mm (3.948 ± 0.002 inch).
Installation depth is
9.85 ± 0.30 mm (0.388 ± 0.012 inch).    
2     1     7Y-4695 Locknut     Before assembly, lubricate the face and all around the threads with 309-6932 Hydraulic Oil .
Torque to
11000 ± 550 N·m (8113 ± 406 lb ft).    
3     1     9X-3601 Seal As     Lubricate the inside diameter and the outside diameter with clean Hydraulic Oil.    
4     2     188-4217 Ring     Lubricate the inside diameter and the outside diameter with clean Hydraulic Oil.    
5     1     188-4218 Ring     Lubricate the inside diameter and the outside diameter with clean Hydraulic Oil.    
A     1     358-8523 Piston     Diameter over the front two lands is
148.90 ± 0.03 mm (5.862 ± 0.001 inch).
Diameter over the rear two lands is
148.00 ± 0.10 mm (5.827 ± 0.004 inch).    
B     1     358-5973 Cylinder As     Bore is
150.050 ± 0.025 mm (5.9075 ± 0.0010 inch).    
C     1     358-5983 Rod As     Diameter is
104.930 ± 0.038 mm (4.1311 ± 0.0015 inch).    
D     1     358-8524 Head     Bore over two lands is
105.63 ± 0.03 mm (4.159 ± 0.001 inch).    
6     1     284-7354 Bushing     Bore before assembly is
110.30 ± 0.04 mm (4.343 ± 0.002 inch).
Installation depth is
10.0 ± 0.5 mm (0.39 ± 0.02 inch).    
7     1     324-6438 Buffer Seal     Lubricate the sealing lip lightly with the lubricant that is being sealed.    
8     1     324-6439 U-Cup Seal     Lubricate the sealing lip lightly with the lubricant that is being sealed.    
9     1     165-9290 Lip Type Seal     Lubricate the sealing lip lightly with the lubricant that is being sealed.    
10     –     –     Before assembly, apply green Loctite 609 to the wiper seal groove.    
11     1     242-6833 Seal Ring     The slit must be turned in the direction of piston.    
12     1     114-0760 Bushing     Outside diameter is
110.148 ± 0.033 mm (4.3365 ± 0.0013 inch).
Thickness is
2.475 ± 0.025 mm (0.0974 ± 0.0010 inch).