140 Motor Grader Caterpillar

Setscrew Adjust

1. Rotate the blade. Position the blade at an angle of 90 degrees to the frame. Lower the blade to 10 mm (0.40 inch) above the ground. Engage the parking brake. Stop the engine.
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   Illustration 1	g01298017

2. Visually inspect the wear strips through the cutout feature that is provided on top retaining plate (2) and bottom retaining plate (3). If the wear strips are worn close to the moldboard, replace the wear strips.

3. Remove top retaining plate (2) and bottom retaining plate (3).

4. Loosen the locknuts on set screws (1).

5. Start the engine. Sideshift the blade through the entire limit of travel. Measure the clearance between the wear strips and the blade at four equally spaced points. This will allow you to determine the location of the minimum clearance.

6. Sideshift the blade to the location of the minimum clearance.

7. Stop the engine.

8. Tighten the set screws to obtain 0.13 to 0.89 mm (0.005 inch to 0.035 inch) clearance between the moldboard rail and the wear strips at the location of minimum clearance.

9. Tighten the locknuts on the set screws. Refer to Specifications, SENR3130, "Torque Specifications" for the recommended torque.

10. Install the top retaining plate and install the bottom retaining plate.

11. Repeat Steps 2 through 10 for the opposite side of the moldboard.

Shimmed Adjust

1. Rotate the blade. Position the blade at an angle of 90 degrees to the frame. Lower the blade to the ground. Stop the engine.
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   Illustration 2	g01703913

2. Remove the top retaining plates and the bottom retaining plates. Visually inspect the wear strips. If the wear strips are worn close to the moldboard, replace the wear strips.

3. Install shims between the moldboard rail and the wear strips at the location of minimum clearance. Add shims to provide a clearance of 0.13 mm (0.005 inch) to 0.89 mm (0.035 inch).

   Note: The shims that are required should be divided evenly between the upper wear strips and the lower wear strips.

4. Install the top retaining plate and install the bottom retaining plate.

5. Start the engine. Raise the blade, so that the blade will clear the ground. Sideshift the blade through the entire limit of travel. Measure the clearance between the wear strips and the blade. This will allow you to determine the location of the minimum clearance.

6. Stop the engine.

7. Remove the top retaining plate from the center wear strip bracket. Visually inspect the wear strips. If the wear strips are worn close to the moldboard, replace the wear strips.

8. Install shims between the moldboard rail and the wear strips at the location of minimum clearance. Add shims to provide a clearance of 0.13 mm (0.005 inch) to 0.89 mm (0.035 inch).

9. Install the top retaining plate for the center wear strip bracket.