PRODUCTION EFFICIENCY

The difference in the direction and/or distance the joysticks are from neutral determines the machine's turning arc.

When propelling long distances (over 500 feet/150 meters), extra lubrication is needed for the crawler side frame components. Make sure the fast cycle in the auto lube system is working properly.

When stopping the machine for any interval during the move, place the control in BRAKES SET mode. Once the machine has been positioned at the bank or has reached its destination, return machine control to DIG mode to resume operation.

DANGER! When transferring from PROPEL to DIG mode, pause in BRAKES SET position until the red PROPEL BRAKE SET indicating light comes ON. Then move the control transfer switch to DIG. This will insure the propel brakes are set and the crawler belts locked in position to prevent machine movement.

PRODUCTION EFFICIENCY

Electric shovels are only as efficient as the operator at the controls. The operator therefore controls machine production within the variables of dipper capacity, swing speed, bail pull, and material density. Other factors such as machine availability time, number of shifts, and fragmentation of material also effect machine production efficiency.

Many operators lose much of their productive efficiency in their inability to control the pit face/ floor conditions or the proper spotting of the haul units.

To maintain maximum output, the optimum swing angle for shovels is an arc of 30o-90o between the digging face and the dump point.

Swing arcs greater than 90o require the machine to spend more time in the swing cycle between loading and dumping. This decreases production.