The engine also powers the hydraulics that drive the feed roller system. The hydraulic system incorporates a Sun- source pump with a displacement of 0.38 cu.in./rev. that drives a 12.5 cu.in./ rev. White feed roller motor. Flow to the feed roller motor is controlled by three valves.

Overall size with motor is car 5.7 X 6.1 X 13.3 in. The 6.5-hp Oillube air compressor is ideal for heavy-duty use with most air tools. The compressor has a 60-gal. vertical tank that provides large air storage in little space. Its 2-cylinder pump has cast-iron sleeves and automotive pistons and rings, thus it consumes less oil. An aluminum-finned crankcase and balanced flywheel provide improved heat dissipation. The Model 652A Quantum Plus heat pump is designed for replacement and new construction applications. Using non-ozone depleting Puron refrigerant, this 12-SEER heat pump offers dependability, efficiency and flexible installation. A coil guard provides additional protection from rocks and debris. An accumulator ensures that oil-rich refrigerant flows through the compressor to improve compressor lubrication and service life. The compressor features such safeguards as a loss of charge switch and a discharge temperature switch. An air management system, discharge muffler and sound shield help minimize noise. Bryant.

CONSTRUCTION: Hitachi Zosen Shipbuilding &Engineering Co. Ltd. Tokyo, 1980.PERFORMANCE: Water depth--300''; Drilling depth--20,000''.QUARTERS: 108 persons.DRILLING EQUIPMENT: Drawworks--Nat''l 1320UE, 2,000 hp; Pumps--two Nat''l Triplex 12-P-160,one 10-P-130; Prime movers--two EMD 16-645E9,one EMD 12-645 E9 & SCR system; RotaryTable--Nat''l C-375; Top Drive--Varco TDS-3.CRANES: two Nat''l OS-105, 37 t @ 20'', oneLeTourneau PCM-80AS 25 t @ 20''.OTHER DATA: Typical of Nan Hai No. 1.WORK AREA: South China Sea.

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