US 11,988,504 B2
Service tool
Matthew Francis Desio, Sherwood, AR (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on May 28, 2021, as Appl. No. 17/334,215.
Prior Publication US 2022/0381545 A1, Dec. 1, 2022
Int. Cl. G01B 3/00 (2006.01); E02F 3/76 (2006.01); E02F 3/815 (2006.01); G01B 5/14 (2006.01)
CPC G01B 3/004 (2013.01) [E02F 3/7636 (2013.01); E02F 3/8152 (2013.01); G01B 5/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of calibrating a position of a cutting edge of a blade disposed on a machine, the blade including a moldboard coupled to a replaceable member by a plurality of bolts, the replaceable member including the cutting edge disposed at a bottom of a front surface of the replaceable member, the method comprising:
performing for a first bolt and, optionally, a second bolt, of the plurality of bolts, the first bolt and the second bolt each respectively a measured bolt:
abutting a notch of a service tool against the cutting edge and abutting a curved portion of the service tool against the front surface of the replaceable member and against a top face of a head of the measured bolt, wherein the service tool includes an inward-side face disposed between a first face and a second face, the inward-side face including the curved portion and the notch, the first face including a first curved edge, a plurality of horizontal lines marked on the first face and a plurality of vertical lines marked on the first face, wherein the first curved edge of the first face of the service tool is positioned adjacent to a center diameter of the top face of the head of the measured bolt;
identifying a horizontal line on the first face that ends adjacent to a center of the top face of the head of the measured bolt;
measuring a vertical distance from the center of the top face to the cutting edge by identifying a first measurement associated with the horizontal line identified on the first face;
identifying a vertical line on the first face that ends adjacent to the center of the top face of the head of the measured bolt; and
measuring a horizontal distance from the center of the top face to the cutting edge by identifying a second measurement associated with the vertical line identified; and
calibrating the position of the cutting edge by providing to a grade control system the vertical distance and the horizontal distance measured for the first bolt and, optionally, the vertical distance and horizontal distance measured for the second bolt.