Symbol 1665 from ISO 7000 - Title/Meaning: Tractor, wheel slip 
Function/description: To indicate the degree of wheel slip, which is the difference between the actual ground speed of the machine and the ground speed implied by the rotational speed of the rear drive wheels. To identify the control that sets or adjusts the degree of wheel slip at which another action is taken, either manually or automatically.
Own work using: iso.org/obp/graphics/grs/343178e8-8b69-4dd7-83c6-cee7c66b28a4 200.png
Vectorization:  Mrmw