SWDE120A DOWN-THE-HOLE DRILLING RIG OPERATOR’S MANUAL BOOK
by right pilot handle. Different motions are operated by the selection of work/adjust switch.
Duplex handle controls feed and swing mechanism. Crawler travelling is controlled by pedal
hydraulic pilot valve. Clamping mechanism, dust cover up/down, travel fast speed, dust
removing and cooling are controlled by rocker switch.
Maximum swing speed can be set by the speed regulation block within the range of 0 ～
105rpm. There’s a pressure switch to test the swing pressure, when the swing pressure is too
large, pressure switch will send out a signal, and the drill tool will be lifted automatically to
prevent drill rod jamming. The feed force can be adjusted stepless in cab.
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