VT-30, VT-40, VT-50 and VT-60 Multi-Processors Cutting Edges - Inspect/Replace Caterpillar

Inspect the Cutting Edges

1. Open the jaws of the work tool.

2. Lock the jaws in an open position. Refer to, "Crusher Tooth and Ripper Tooth - Replace" for the proper procedure.

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Illustration 1	g02150133
Typical example

3. Inspect the cutting edges on the cutters (1) for wear. If the cutting edge is worn or if the cutter is damaged, the cutting edge must be changed or the cutter must be replaced.

4. Inspect the current cutting edge on the cutter. Inspect the other cutting edges on the cutter. Each cutter has four edges that can be used.

5. Inspect the radius of the cutting edge on the cutter. If the radius of the cutting edge is greater than 5 mm (0.2 inch), the cutting edge must be changed or the cutter must be replaced.

6. If the other cutting edge on the same side is not worn, rotate the cutter and install the cutter. If the other cutting edge is worn, turn the opposite side of the cutter outward and install the cutter.

If all of the cutting edges are worn, the cutters must be replaced.

Replace the Cutters

1. Open the jaws of the work tool.

2. Lock the jaws in an open position. Refer to, "Crusher Tooth and Ripper Tooth - Replace" for the proper procedure.

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Illustration 2	g02150134
Typical example

3. In order to replace the cutters (1), remove screws (2), shims (3) and cutters (1) from the work tool.

4. Thoroughly clean all contact surfaces before installing the new cutters. Remove any rust, paint, nicks, and burrs from the surfaces.

5. Install the shims (3) and install the new cutters (1) .

6. Install screws (2). Tighten the screws to the proper torque. Refer to, "General Maintenance Information" for the proper torque value.

   Note: Use new screws when the cutter will be replaced.

7. Slowly close the jaws on the work tool.

8. Measure the clearance between the cutter (1) of the movable jaw and the cutter (1) of the fixed jaw. The clearance between the two cutters must be less than 0.5 mm (0.02 inch). Use the shims (3) to adjust the amount of clearance.

   Note: On the shear jaw sets, the clearance between the guide blade and cutter of the fixed jaw must also be checked.

   Note: The cutting edge and guide blades must be in front of the base material in order to reduce the wear of the base material.