D9T Track-Type Tractor Power Train – Tracks



Illustration 1 g01949418
Table 1
Specifications for 379-4042 Track Gp, 379-4052 Track Gp, 379-4062 Track Gp, and 379-4070 Track Gp    
Item     Qty     Part     Specification Description    
–     –     –     All joints of the link assembly must have flexibility even with a measurable end play of zero. Flexibility is the ability for movement from the weight of the link assembly.    
Use the following procedure to tighten the track bolts:
1. Tighten the track bolts to
870 ± 90 N·m (642 ± 66 lb ft).
2. Tighten the standard track bolts to an additional turn of 120 ± 5 degrees.
3. Tighten the master link bolts to an additional turn of 120 ± 5 degrees.
–     –     –     The maximum assembly force for the track link assembly is
780000 N (175352 lb).    
–     –     –     The reference setting force is
600000 N (134886 lb).    
A     –     –     Protrusion at one end of the pin is
2.00 ± 0.13 mm (0.079 ± 0.005 inch).    
C     –     –     Distance between the bolt holes is
170.00 ± 0.39 mm (6.693 ± 0.015 inch).    
D     –     –     Distance between the bolt holes is
230.00 ± 0.39 mm (9.055 ± 0.015 inch).    
E     –     –     Distance between the bolt holes is
170.00 ± 0.80 mm (6.693 ± 0.032 inch).    
F     –     –     Distance between the bolt holes is
230.00 ± 0.80 mm (9.055 ± 0.032 inch).    



Illustration 2 g02728574

View of area B

Table 2
Specifications for 379-4042 Track Gp, 379-4052 Track Gp, 379-4062 Track Gp, and 379-4070 Track Gp    
Item     Qty     Part     Specification Description    
G     –     –     Distance from the end of the pin (1) to the surface of the stopper (3) is
8.0 ± 4.0 mm (0.31 ± 0.16 inch).    
H     –     –     The plug (2) must not be recessed below the surface of the stopper (3) after assembly.    
Distance from the end of the plug (2) to the surface of the stopper (3) is
0 to 2 mm (0.0 to 0.1 inch).
–     –     –     End play for the link assemblies is
0.00 to 0.20 mm (0.000 to 0.008 inch).    
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