ELECTRICAL MAINTENANCE MANUAL
60/61-R
Blast Hole Drill
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BI005542
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The purpose of this manual is to provide information concerning the electrical maintenance of the 60/ 61-F rotary blast hole drill.
The 60/61-R consists ofthree major units, the lower works, the mainframe and the mast. The lower provides a foundation for the mainframe and contains a portion of the equipment necessary to propel tht drill. The mainframe includes the hydraulic, main air and auxiliary air systems, the hoist-propel trans mission and the machinery house. The machinery house encloses the majority of the mechanical equipment necessary for the main and auxiliary air systems, the hydraulic systems and electrical control systems. The machinery house is pressurized with filtered air to minimize dirt and heat build-up. ThE operator's cab, mounted to the mainframe, provides the operator's station, and encloses the majority of thE controls necessary to operate the drill.
This manual consists of three 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 carefully and use extreme care while performing that particular function.
WARNING indicates a possible hazard to the machine or its components ifthe 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.
Every effort has been made to make this manual as complete and accurate as possible at the time of publication. Bucyrus-Erie Company, however, reserves the right to continually improve its products. For this reason changes may have been made to the machine or its equipment that are not detailed in this manual.
MACHINE SERIAL NUMBER
FOREWORD
BUCYRUS-ERIE COMPANY General Offices: South Milwaukee, Wisconsin, U.S.A 1M SPS 485 BI005542
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CHAPTER 1- MAINTENANCE PAGE Section 1- GENERAL MAINTENANCE Introduction. ............................................................................1 Safety ,........................ 1 General.............................................................................. 1 Specific Safety Rules ,, , ,......1 Inspection ,,..........1 Trail Cable ,.......................1 Operating Controls, Gauges and Instruments ,.............. 2 Control Panels ,.....2 Contactors ,2 Overload Devices ,..................2 Transformers ' ,.................... 2 Electrical Light Plant , , ", ,2 Section 2- COMPONENT MAINTENANCE DC Motors (General Electric) , ',...... 15 Basic Maintenance " ,.,..... 15 Motor Disassembly ,.................... 25 Assembly of Motor ,. 27 Pinion Mounting ,............................... 28 Motor Installation ,......................................................... 28 Pinions.............................................................................. 28 Insulation ,,,............................... 30 Overhaul ,..................................................... .. 32 DC Motor-Problems' ., '. 34 Tightening Bolted Joints , ,,,........... .. 36 Motor-Generator Set (General Electric) ., ,............... 36 Lubrication , ,, ,.................... 37 Brush Maintenance ,............ .. ............... .. .. .. ...... .. .. .. .... 37 Commutation Adjustment. 38 Commutator Turning, Stoning and Sanding. ........................................ .. 39 Commutator Film Care " 40 Commutator Clean-up By Air Cure Method " " 41 Field Service Cleaning , " 42 Drying of Windings 43 Armature Removal " 43 Armature Installation " 43 Hydraulically Removable Keyless Couplings. 44 Anti-Friction Bearing Removal 48 Assembly of Ball Bearings. ......................................................... .. 48 Insulation Resistance Measurements. 49 BI005542
TABLE OF CONTENTS
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CHAPTER 2- ELECTRICAL ADJUSTMENTS (X-2915)
SCR Control (General Electric) 50 Introduction 50 Silicon Controlled Rectifier 50 General Considerations and Precautions. ........................................... .. 52 Exciter Theory ..................................................................... .. 53 Details of Firing Circuit Module 57 Troubleshooting Exciter. 60 Regulator ,.... .. ............ .. ..... .. ......... .. 62 Bias................................................................................. 67 Bias Power Module. ................................................................ .. 67 Magnetics. ......................................................................... .. 68 Installation 68 Maintenance. ...................................................................... .. 72 Troubleshooting. 72 Rotary Transfer Switch. 75 Switch Module .,. .................................................................. .. 75 Motor Module. 80 Horizontal Induction Motors (General Electric) 82 Description 82 Installation 82 Operation. ......................................................................... .. 84 General Maintenance '. ................................................ .. 86 Bearing Maintenance 88 High Voltage Air Contactor (General Electric) , ".. .. ... .. 91 Introduction 91 Maintenance " , .. ...... .. .... .... . .. 93 High Voltage Air Contactor (Westinghouse) 104 Introduction 104 Inspection 105 Maintenance , , 108 Lincoln Grease Lube System " 110 Sequence of Operation , 110 Lincoln Spray Lube System 114 Sequence of Operation 114 Farval Grease Lube System " 117 Sequence of Operation 117
Section 1. DESCRIPTION OF OPERATION 123 Section 2- GENERAL INSTRUCTIONS Procedure 125 Section 3- CONTROL SEQUENCE AND AUXILIARY MOTOR ROTATION CHECK Proced ure ............................................................................. .. 127 Section 4. MG·SET AND MAIN AIR COMPRESSOR MOTOR STARTING PROCEDURE FOR ELECTRIC MACHINES Proced ure 131 BI005542
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Section 5· GENERATOR STATIC EXCITER AND REGULATOR PANEL ADJUSTMENTS Procedure Section 6· ROTARY GENERATOR THREE FIELD CONTROL ADJUSTMENTS Proced ure 14] CHAPTER 3- ELECTRIC ADJUSTMENTS - AUTOMATED DRILLS (X-2873) Section 1- DESCRIPTION OF OPERATION General 143 Rotary Speed and Torque 143 Pulldown Speed and Force , 143 Section 2- INSTALLATION INSTRUCTIONS General Instructions 147 Automation Control Switching and Relay Logic " , 147 Hydraulic Instructions 149 Automation Control Regulator Panel, Sensors and Instruments : 150 Section 3· OPERATION Operators Procedure 155 Operational and Optimizing Procedures , 156 Section 4- MAINTENANCE AND TROUBLESHOOTING General Troubleshooting Procedure 161 Electrical Maintenance and Troubleshooting 161 Hydraulic Maintenance and Troubleshooting 163 General Maintenance , '.' 166 Section 5- BENCH TEST· DRILL AUTOMATION CONTROL PANEL General 167 Preliminary Set-up and Test Equipment 167 Test Equipment Required 167 Preliminary Set-up 167 Panel Test 168 Boards A and Power Supply 168 Board B 168 Board C 168 Boards D, C and A 168 Boards E and C 169 Boards F and C 169 Boards G and C.................................................................... 170 Card E 170 BI005542
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APPENDICES
Appendix lA - ELECTRICAL INSPECTION GUIDE lA Appendix 2A - SUGGESTED TOOL LIST 3A Appendix 3A - DAILY ELECTRICAL CHECK LIST .......................................... .. 5A Appendix 4A - WEEKLY ELECTRICAL CHECK LIST. ....................................... .. 7A Appendix 5A - MONTHLY ELECTRICAL CHECK LIST. 9A Appendix 6A - QUARTERLY ELECTRICAL CHECK LIST 11A Appendix 7A - SEMI-ANNUAL ELECTRICAL CHECK LIST 13A Appendix 8A - ANNUAL ELECTRICAL CHECK LIST 15A Appendix 9A - RECAP SHEET 17 A Appendix lOA - MOTOR, GENERATOR AND CONTROL MAINTENANCE RECORD 19A Appendix llA - MOTOR SERVICE RECORD 21A BI005542
• Thank you very much for reading the preview of the manual.
• You can download the complete manual from: www.heydownloads.com by clicking the link below
• Please note: If there is no response to CLICKING the link, please download this PDF first and then click on it.
CLICK HERE TO DOWNLOAD THE COMPLETE MANUAL
CLICK HERE TO DOWNLOAD THE COMPLETE MANUAL
