R. H. DRAG FRAME

FOREWORD

The purpose of this maI}ual is to provide information concerning the mechanical maintenance of the 1570W Walking Dragline. The Model 1570W consists of three major units, the lower works, the rotating deck and the front end equipment. The lower works provides a foundation for the revolving frame and contains the base, swing rack and roller circle. The rotating deck includes the revolVing frame and machinery house. The machinery house encloses all of the hoist, swing, drag and propel machinery, and the electrical systems required to control machine functions. It also contains an alr filtration system to minimize heat and dirt build.up in the machinery house. An elevated cab mounted on the house provides the machinery operator's station. The cab contains all machine operating controls. The front end equipment is comprised of the A-frame. fairlead, mast, boom, running ropes, boom structural strands, and drag line bucket. This manual consists of four chapters, each divided into sections. A table of contents is located in the front of the manual.

Throughout this manual the words CAUTION. WARNING and NOTE appear in bold face type. CAUTION is preceded by the safety alert symbol A and indicates that injury to personnel could occur if the PrOper procedures are not followed during operation or maintenance. Always read the CAUTION note and use extreme care while performing that particular function. WARNIN G indicates a possible hazard to the machine or its components if the proper procedures are not followed. Whenever the word WARNING appears, special 'attention should be given to prevent possible equipment damage. NOTE is used to stress a point or to give additional information concerning the procedure being discussed.

These CAUTION's and WARNING's are not all-inclusive. It is impossible for Bucyrus-Erie Company to know" evaluate, and advise maintenance and service personnel in every conceivable way a service operation might be performed and of the resulting possible hazardous' consequences of each method. It is therefore extremely important that anyone who uses a service procedure or tool which is not recommended by Bucyrus-Erie Company to first satisfy himself that the service procedure or tool he chooses will not jeopardize his own safety, the safety of others, or cause machine or component damage.

MACHINE SERIAL NUMBER

BUCYRUS-ERIE COMPANY General Offices: South Milwaukee, WisconSin, U.S.A. REVISED 9/9/88