| 173 / | HD | TOOL DRIVING OR IMPACTING | 
| 184 |  | WITH VEHICLE SUPPORT FOR DRIVE {6} | 
| 185 | DF | .~> Pivoted | 
| 186 | DF | .~> Nontransporting means to support vehicle during tool operation {1} | 
| 24 | DF | .~> Movement of vehicle causes tool advance | 
| 25 | DF | .~> Vehicle motor mechanically coupled to drive tool {1} | 
| 27 | DF | .~> Vehicle motor and drive motor powered by same energy source | 
| 28 | DF | .~> Drive structure moved to nonuse position for transport |