PM620, PM622, PM820 and PM822 and PM825 Cold Planer Machine Systems Caterpillar


Track Roller (Single Flange)

Usage:

PM825 3C6


Illustration 1g06027119

Table 1
Specifications for 497-8871 Track Roller Gp 
Item  Qty  Part  Specification Description 
497-8889 Roller Bushing As  Bore after assembly is 50.83 ± 0.08 mm (2.001 ± 0.003 inch)
6S-3285 Duo-Cone Seal Gp  The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The rubber toric seal should not bulge and the rubber toric seal should not twist. Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals" 
7D-9749 O-Ring Seal  Lubricate the bore lightly with the lubricant that is being sealed. 
End play for the track roller shaft:
Minimum is 0.15 mm (0.006 inch).
Maximum is 1.25 mm (0.049 inch)

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