D9T Track-Type Tractor Power Train – Idlers (Track)



Illustration 1 g02728517
Table 1
Specification for 125-4655 Track Idler Gp , and 245-9942 Track Idler Gp    
Item     Qty     Part     Specification Description    
–     –     –     End play is 0.33 to 1.19 mm (0.013 to 0.047 inch).    
A     –     –     Install the rubber stopper in the shaft. The end of the rubber stopper should be even with the end of the chamfer. The stopper can be recessed up to
7.0 ± 7.0 mm (0.28 ± 0.28 inch) past the chamfer.    
B     –     –     Extension of the track idler shaft from the face of the seal collar on both sides is
59.42 ± 0.13 mm (2.339 ± 0.005 inch).    
1     2     107-4057 O-Ring Seal     Lubricate O-ring seals and the track idler shaft lightly with the lubricant that is being sealed.    
C     1     6Y-0473 Clear Plug     After assembly, the clear plug must not be recessed below the surface of the rubber stop.    
Protrusion of the clear plug from the rubber stop after assembly is
0.0 to 5.0 mm (0.00 to 0.20 inch).
2     2     162-7863 Duo-Cone Seal Gp     Rubber toric seals must be clean and dry at assembly. All surfaces that contact the toric seals must be clean and dry at assembly. At assembly, apply a thin film of oil to the contacting surfaces of the metal seal. Seal rings must be assembled squarely with the bore. The toric ring must not bulge and the toric ring must not be twisted.    
3     6     9W-4480 Bolt     During assembly, lubricate the threads of the bolts with Loctite C5A copper anti seize. Tighten the bolts on the abutment side first. Then tighten the bolt on the gap side.    
Torque to
1600 ± 200 N·m (1180 ± 148 lb ft).
4     24     5P-2546 Bolt     Torque to
85 ± 15 N·m (63 ± 11 lb ft).    



Illustration 2 g02728521

Idler and bearing assembly

Table 2
Specification for 125-4655 Track Idler Gp , and 245-9942 Track Idler Gp    
Item     Qty     Part     Specification Description    
5     2     9W-9499 Bushing     Installation depth (D) is
13.0 ± 0.5 mm (0.51 ± 0.02 inch).    
Bore diameter (E) of the bushing after installation is
127.25 ± 0.03 mm (5.010 ± 0.001 inch).
Posted in D9Tagged