D6T Track-Type Tractor Hydraulic System Lift Cylinder (Bulldozer) Caterpillar


Lift Cylinder (Bulldozer)
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Illustration 1g02724045

Table 1
Specifications for 349-6044 Bulldozer Lift Cylinder Gp    
Item     Qty     Part     Specification Description    
1     1     1F-6762 Bolt     Torque to 3600 ± 400 N·m (2655 ± 295 lb ft).    
2     2     1U-4074 Piston Insert     The piston inserts must not extend beyond the face of the piston.    
A     1     9T-3885 Piston     Diameter is
101.10 ± 0.03 mm (3.980 ± 0.001 inch).    
3     2     4J-6374 Bushing     Inside diameter before assembly is
50.622 ± 0.013 mm (1.9930 ± 0.0005 inch).    
B     1     349-6045 Cylinder As     Bore is
101.60 ± 0.08 mm (4.000 ± 0.003 inch).    
C     1     114-4304 Rod As     Diameter is
63.450 ± 0.038 mm (2.4980 ± 0.0015 inch).    
D     1     172-9981 Head     Bore is
63.83 ± 0.03 mm (2.513 ± 0.001 inch).    
4     Before assembly, apply clean grease to the threads.
Torque to
600 ± 130 N·m (443 ± 96 lb ft).
5     26     8E-9212 Shim     As required, use the shim:
Thickness is
0.8 mm (0.03 inch).    
6     1     8T-0785 Wear Ring     Inside diameter before assembly is
63.5 mm (2.50 inch)    
7     1     289-2937 Buffer Seal As     Lubricate the sealing lip lightly with lubricant that is being sealed.    
8     1     289-2948 U-Cup Seal     Lubricate the sealing lip lightly with lubricant that is being sealed.    
9     1     225-3281 Wiper Seal     Lubricate the sealing lip lightly with lubricant that is being sealed.    
10     -     -     Before assembly, apply green Loctite 620 to wiper seal groove.    

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