PLATE-DRIVE 1P0487 - Caterpillar

Illustration 1 g01267320
End play (clearance) of the idler shaft: Minimum ... 0.38 mm (0.015 inch) Maximum ... 1.24 mm (0.049 inch) (1) Dimension for installing the stopper below the chamfer ... 7 7 mm (0.275 0.275) (2) Dimension of plug above the surface of the stopper ... 0 to 5 mm (0 to 0.197 inch)Note: The plug must not be recessed below the surface of the stopper. (3) Original clearance across the diameter between the shaft and the bearings ... 0.43 0.13 mm (0.017 0.005 inch) (4) Idler tread for the STD machine and for the LGP machine Original diameter of the tread of the track idler ... 628 mm (24.75 inch) (5) Dimension for the extension of the shaft from the collar on both sides ... 51.42 0.13 mm (2.024 0.005 inch) (6) Torque for four bolts that hold the track idler to the track roller frame ... 700 90 N m (520 60 lb ft)Note: Tighten the bolt on the abutment side of the track idler cap first. Then, tighten the other bolt in the cap. (7) Bearing depth from the face of the idler on each side ... 13.0 0.5 mm (0.512 0.020 inch) (8) Torque for 24 bolts ... 85 15 N m (63 11 lb ft)Note: 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. Refer to 6Y-0300 Installation Instructions for Conventional Duo-Cone Seal Assemblies.