1-68 System Operation Manual MD6640 Blasthole Drill
8.
BI012593
Gradual turns should be done in steps of 15 degrees each. After turning the machine a maximum of 15 degrees, the machine should be propelled straight for about one-half of the length of the machine to clear the crawler belts of dirt and rocks. Turning the drill in more than 15 degree increments will subject the crawler belts to severe strain.
COUNTER-ROTATION LEFT HAND TURN
9.
To make a sharp counter-rotation turn, push the left joystick forward and pull the right joystick to the rear. To make a turn to the left, push the right joystick forward and pull the left joystick to the rear.
ENSURE GRADUAL TURNS ARE MADE - 15° INCREMENTS
CAUTION:
ENSURE THAT THE TURN IS STOPPED EVERY 15 DEGREES AND THAT THE MACHINE IS PROPELLED FORWARD, OR REARWARD, AT LEAST TEN FEET PRIOR TO RESUMING THE TURN. MAKING GRADUAL TURNS WILL GREATLY EXTEND THE SERVICE LIFE OF THE TRACKS.
