SWDM320HB OPERATOR’S MANUAL
●When machine is in drilling operation and drilling depth reading is greater than zero, the
system considers that the kelly bar is inside hole and accidents may occur if upper-carriage
swings and the program restricts this operation. If the drilling depth proximity switch is
damaged and the drilling depth reading is less than zero, switch the “Button 4- Crawler
extension switch” in the membrane key panel is not connected(The light above the key is not
light) before upper carriage Left/Right swing.
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