561M Pipelayer Track Rollers - Single Flange and Double Flange Caterpillar


Track Rollers - Single Flange and Double Flange
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561M Pipelayer [SENR1753]
UNDERCARRIAGE
ROLLER GP
561M Pipelayer Track Rollers - Single Flange and Double Flange
1.1. Roller Placement (XL Undercarriage)
2.1. Roller Placement (LGP Undercarriage)



Illustration 1g00102073

End play (clearance) of the roller shaft:

Minimum ... 0.25 mm (0.010 inch)

Maximum ... 1.23 mm (0.048 inch)

Torque for the bolts that attach the rollers to the track roller frame ... 270 ± 40 N·m (200 ± 30 lb ft)

(1) At assembly, rubber toric seals and all surfaces that contact the rubber toric seals must be clean and dry. Immediately before installation, put a thin layer of oil on the contact surfaces of the metal seal rings. The seal rings must be assembled square with the bore. Rubber toric seals must not be twisted. Do not allow rubber toric seals to bulge.

(2) Clearance across the diameter between a new shaft and new bushings ... 0.634 ± 0.055 mm (0.025 ± 0.002 inch)

(3) At assembly, lubricate the surface of the bushing assemblies.

(4) At assembly, lubricate the seals.

(5) Diameter of a new track roller rim ... 175 ± 0.25 mm (6.890 ± .010 inch)

(5) Diameter of a track roller rim that is worn 100 percent ... 144.5 mm (5.689 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 (XL Undercarriage)

Start at the front of the machine:

No. 1 track roller is a single flange.

No. 2 track roller is a double flange.

No. 3 track roller is a single flange.

No. 4 track roller is a double flange.

No. 5 track roller is a single flange.

No. 6 track roller is a double flange.

No. 7 track roller is a single flange.

Roller Placement (LGP Undercarriage)

Start at the front of the machine:

No. 1 track roller is a single flange.

No. 2 track roller is a double flange.

No. 3 track roller is a single flange.

No. 4 track roller is a double flange.

No. 5 track roller is a double flange.

No. 6 track roller is a single flange.

No. 7 track roller is a double flange.

No. 8 track roller is a single flange.

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