US 11,851,832 B2
Machine service set position control system
Garrett Daniel Reed, Big Lake, MN (US); Brian Joe Schlenker, Shoreview, MN (US); and Paul J Koenen, Andover, MN (US)
Assigned to Caterpillar Paving Products Inc., Brooklyn Park, MN (US)
Filed by CATERPILLAR PAVING PRODUCTS INC., Brooklyn Park, MN (US)
Filed on Dec. 20, 2021, as Appl. No. 17/555,781.
Prior Publication US 2023/0193572 A1, Jun. 22, 2023
Int. Cl. E01C 23/088 (2006.01); E01C 23/12 (2006.01); E01C 21/00 (2006.01)
CPC E01C 23/088 (2013.01) [E01C 21/00 (2013.01); E01C 23/127 (2013.01)] 15 Claims
OG exemplary drawing
 
8. A machine, comprising:
a frame supported by a plurality of wheels;
a power source connected to the plurality of wheels and configured to rotate the wheels;
a milling drum attached to the frame through a rotor drive train, the rotor drive train including a gearbox, the rotor drive train being configured to rotate the milling drum and move the milling drum into and out of engagement with a ground surface; and
a machine service set position control system programmed to:
determine a position of the machine and a position of at least the rotor drive train and milling drum,
determine whether the machine is level before determining the position of at least the rotor drive train and milling drum,
issue commands to level the machine relative to the ground surface,
selectively operate a rotor drive train actuator connected to the rotor drive train based on the determined positions to move the rotor drive train and rotor gearbox into a machine service set position allowing access for a technician to perform service tasks including one or more of inspecting an oil level in the rotor drive train gearbox and adding oil if required,
operate the power source to adjust a height of the frame to position the frame level relative to the ground surface prior to performing the service tasks,
determine a height of the frame relative to the ground surface,
determine a height of the drum chamber, and
determine a height of the milling drum relative to the ground surface.