. OPERATION EXPLANATION OF COMPONENTS RETARDER PILOT LAMP lockup is the head lamps are set to high at the the turn signal lamp 3 - 20 This monitor (2) lights up when the retarder control lever is pulled and the retarder is actuated. LOCKUP PILOT LAMP This monitor (3) torqu converte engaged and the transmission i s shifted to direct drive HEAD LAMP HIGH BEAM PILOT LA This monitor (4) beam. TURN SIGNAL PILOT LAMP This monitor (5) flashes. ame time a