Air Compressor

MAIN AIR SYSTEMS

The screw compressor is located within the machinery house just forward of the hydraulic pump gearbox. The rotary screw compressor is an oil flooded, single stage twin screw type compressor which has a nominal rating of 3,000 cfm (84.9m3/min), @ 65 psi and a maximum operating pressure of 65 psi.

Air Compressor

HYDRAULIC SYSTEM

Hydraulic pressure for operation of this machine is provided by four separate pumps. These pumps are driven by the electric motor located in main machinery house, forward of the hydraulic filters and reservoir.

The machine has 2 separate, though not completely independent hydraulic systems, the OPEN and CLOSED circuits. Both draw fluid from a common reservoir.

OPERATOR’S CAB

The sound insulated operator’s cab of the MD6640 provides a sealed, comfortable enclosure from which the operator can perform the tasks involved with the operation of the machine. The location and design of this compartment have been structured to provide the optimum viewing angles with immediate accessibility. The operator’s seat is a self-contained unit that includes the seat, seat suspension and swivel base assembly, the primary operator’s controls and the JLT display monitor. The auxiliary control console is within reach to provide access to additional functions of the machine. The cab is provided with dual doorways to the main deck.

MAST

The mast is a fabricated structure of steel tubes and formed plates. The major structure is composed of vertical tubes welded together with back bracing. The mast functions to provide the mounting and guide for the equipment required to operate the drilling function of the machine. The mast is capable of being positioned at any 5o increment within it’s operating range from 65 degrees through 90 degrees (vertical). The mast can be raised and lowered by 2 (two) 9.00 inch (228mm) hydraulic cylinders.