320 GC, 320 and 323 Excavator Machine Systems Specifications Caterpillar


Track Roller (Single Flange)

Usage:

320 BR6


Illustration 1g03732606
Typical example

Table 1
Item  Qty  Part  Specification Description 
Before assembly, the surfaces must be clean and free of protective coating. 
O-Ring Seal  Lubricate the bore lightly with the lubricant that is being sealed. 
Track Roller Bearing  Bore after assembly is 60.130 ± 0.076 mm (2.3673 ± 0.0030 inch). (1) 
Bore after assembly is 63.365 ± 0.076 mm (2.4947 ± 0.0030 inch). (2)
9W-2146 Plug  Before assembly, apply blue Loctite 243 to the threads. 
Torque to 28 ± 5 N·m (248 ± 44 lb in).
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 film of 6V-4876 Lubricant 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. 
End play for the track roller shaft: 
Minimum is 0.25 mm (0.010 inch).
Maximum is 1.25 mm (0.049 inch).
(1) For 461-7752 and 481-4789.
(2) For 508-9458.

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