SPOTTING THE DUMP
AS THE LOADED DIPPER IS SWINGING, CROWD OR RETRACT THE DIPPER STICK SO THE DIPPER DOOR WILL
BE DIRECTLY OVER THE DUMPING POINT WHEN THE SWING IS COMPLETED. HOIST THE DIPPER, IF
NECESSARY, TO RAISE IT TO THE PROPER HEIGHT FOR DUMPING. WHEN DUMPING INTO TRUCKS, SPOT THE
TRUCKS SO THE LOAD WILL SWING OVER THE TAILGATE OF THE TRUCK. NEVER SWING THE LOAD OVER
THE TRUC K CAB.
AFTER DUMP IS SPOTTED, DEPRESS THE DIPPER TRIP SWITCH ON THE SWING CLUTCH LEVER. HOIST THE
DIPPER SLIGHTLY TO RAISE IT CLEAR OF THE FLOWING MATERIAL AND TO OPEN THE DIPPER DOOR
COMPLETELY. HOIST HIGH ENOUGH THAT DOOR CLEARS ALL OBSTRUCTIONS. START SWINGING THE
EMPTY DIPPER BACK TOWARD THE CUT BEING WORKED. LOWER THE DIPPER BY RELEASING THE REAR
DRUM BRAKE PEDAL. THE DIPPER DOOR WILL SNAP SHUT WHEN THE DIPPER IS LOWERED. RETRACT THE
DIPPER AND HAVE IT IN POSITION FOR THE NEXT PASS WHEN THE SWING IS COMPLETED. REPEAT THE
CYCLE.
Figure 2-41. Shovel operations and control positions (sheet 2 of 2).
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