Single Flange and Double Flange
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| Illustration 1 | g00446106 |
End play (clearance) of the roller shaft:
- Minimum ... 0.26 mm (0.010 inch)
- Maximum ... 1.24 mm (0.049 inch)
- Torque for the bolts that attach the rollers to the track roller frame ... 750 ± 90 N·m (550 ± 60 lb ft)
(1) 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.
(2) Original clearance across the diameter between the shaft and the bushings ... 0.76 ± 0.08 mm (0.030 ± 0.003 inch)
(3) At assembly, lubricate the surface of the bushing assemblies.
(4) At assembly, lubricate the seals.
(5) Original diameter of the track roller rim ... 222 mm (8.74 inch)
- Diameter of a 100 percent worn track roller rim ... 187.5 mm (7.38 inch)
(6) Assemble the plug into the stopper to dimension (A). The plug must not be recessed below the surface of the stopper.
(A) Dimension ... 0 to 5 mm (0 to 0.2 inch)
Roller Placement
Note: When you assemble the rollers to the track roller frame orient the lube holes outward.
Standard or STD Undercarriage
The standard undercarriage has six track rollers, four single flange and two double flange.
-
Start at the front of the machine:
- No. 1 ... single flange
- No. 2 ... double flange
- No. 3 ... single flange
- No. 4 ... double flange
- No. 5 ... single flange
- No. 6 ... single flange
- No. 2 ... double flange
Low Ground Pressure or LGP Undercarriage
The LGP undercarriage has eight track rollers, four single flange and four double flange.
-
Start at the front of the machine:
- No. 1 ... single flange
- No. 2 ... double flange
- No. 3 ... single flange
- No. 4 ... double flange
- No. 5 ... double flange
- No. 6 ... single flange
- No. 7 ... double flange
- No. 8 ... single flange
- No. 2 ... double flange
XL Extended Length and XR Rearward Undercarriages
The XL undercarriage has seven track rollers, four single flange and three double flange. The XR machine has the same arrangement.
-
Start at the front of the machine:
- No. 1 ... single flange
- No. 2 ... double flange
- No. 3 ... single flange
- No. 4 ... double flange
- No. 5 ... single flange
- No. 6 ... double flange
- No. 7 ... single flange
- No. 2 ... double flange