477 / | HD | INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL |
182 | DF | BRAKE CONTROL {8} |
194 | DF | .~ Brake control having holding device, with means on engine control to override holding device {2} |
197 | DF | .~.~ Holding device engaged by electric means {1} |
198 | .~.~.~ Holding device comprising brake valve operated by solenoid |