• 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.
8750 Walking Dragline
8750 Walking Dragline
8750 Walking Dragline
Maintenance and Operation Manual
Manual No. 10347
sn: 141159 Lot 30
(Updated Feb. 2007)
–Table of Contents–
This manual is divided into major sections covering the various serviceable components and systems of the 8750 Walking Dragline. These sections and their contents are organized as shown below.
Section 1 - INTRODUCTION
Section 2 - OPERATION
Section 3 - LUBRICATION
Section 4 - PREVENTIVE MAINTENANCE
Section 5 - SERVICE PROCEDURES
Section 6 - BRAKES AND COUPLINGS
Section 7 - COMPRESSED AIR SYSTEM
Section 8 - AIR FILTRATION
Section 9 - ENGINEERING DATA
IMPORTANT NOTE
This document is protected under applicable copyright laws to the extent available. Any unauthorized and unlawful reproduction, distribution or other use shall be subject to liability.
© 2007 Bucyrus International, Inc. All Rights Reserved.
DANGER:
THIS MANUAL PROVIDES INFORMATION AND DATA FOR THE MAINTENANCE AND OPERATION OF THIS MACHINE. ALL ELECTRICAL EQUIPMENT MUST BE SERVICED BY QUALIFIED INDIVIDUALS WHO HAVE BEEN PROPERLY TRAINED TO WORK WITH HIGH VOLTAGE SYSTEMS, VARIABLE FREQUENCY AC DRIVES, AND/ OR WARD LEONARD LOOP DC DRIVES. FAILURE TO COMPLY COULD RESULT IN PERSONAL INJURY OR DEATH.
DANGER:
DO NOT ATTEMPT MECHANICAL OR ELECTRICAL MAINTENANCE ON THIS MACHINE WITHOUT A FULL UNDERSTANDING OF EACH COMPONENT’S OPERATION AND FUNCTION. COMPONENTS UTILIZING ELECTRICAL POWER, AIR PRESSURE, HYDRAULIC PRESSURE AND COMPRESSION OR TENSION SPRINGS FOR OPERATION MUST BE DEACTIVATED AND ISOLATED PRIOR TO DISASSEMBLY.
The FEEDER CABLE must contain a provision for a ground connection, especially whenever 2,300 volts or greater are used. At the substation, the power line must terminate (see paragraph on ground circuits) to a suitable permanent ground. At the machine, the power line must securely terminate through a bolted connection to the machine frame. This provides a constant ground for the machine and its electrical equipment. Failure to provide this adequate ground endangers employees and equipment.
THE NEED FOR A POWER LINE GROUNDING CIRCUIT ADEQUATE FOR THE MACHINE CANNOT BE OVEREMPHASIZED. Without a good grounding system, high voltages exist between the machine and the ground. The portable trail cable and power lines supplying electric energy to the machine must have a ground wire, ample in capacity, running parallel to the main wires over the entire distance from the transformer to the machine. A suitable grounding system must be used at the transformer. Consult your local electrical supplier for details.
DANGER:
DUE TO THE INHERENT DANGERS IN THE OPERATION OF HIGH VOLTAGE ELECTRICAL EQUIPMENT, A SAFE GROUNDING SYSTEM IS REQUIRED THAT INCLUDES GROUND CONDUCTORS IN THE CABLE, A NEUTRAL GROUNDING RESISTOR, AND RELATED RELAYS AND SWITCHGEAR. A GROUND CONTINUITY CHECK SYSTEM IS ALSO RECOMMENDED.
INTRODUCTION
This manual is designed to assist the owner in the operation and maintenance of this machine. By following easy to understand step-by-step procedures the operators and maintenance personnel can perform all tasks in a safe manner. When a systematic and thorough maintenance/service procedure is used for this machine, a minimum of unplanned downtime and more reliable operation will result.
THIS MANUAL IS NOT THE PARTS BOOK, and cannot be used as reference material to order parts. A separate, detailed parts book has been supplied. Please carefully read the instructions in it. All parts are listed by group and/or product code numbers with the associated item/part numbers for THIS SPECIFIC MACHINE. Order parts in the exact quantity needed. RIGHT and LEFT refer to machine locations as viewed by the operator sitting in the operator’s seat in the cab. Please state the correct machine SERIAL NUMBER when corresponding or contacting the factory service or parts departments. Records on each machine are filed by serial number and when given this number, your machine’s specific design and original equipment is accessed quickly by the Bucyrus International parts representative.
Periodic additions or revisions may be made to this manual. These can be ordered and will be mailed directly from the factory. Should you require additional information or factory service assistance contact your regional service representative or:
Bucyrus International, Inc.
1100 Milwaukee Avenue
P.O. Box 500
South Milwaukee, Wisconsin, USA53172-0500
Telephone (414)-768-4000
It is Bucyrus International’s policy to improve its products whenever possible and practical to do so. The company reserves the right to make changes or add improvements to its machines at any time. This will be without incurred obligations to install such changes on machines sold previously.
Due to this ongoing program of product research and development some procedures, specifications and parts may be altered in a constant effort to improve our machines.
SAFETY
The safety alert symbols displayed here and throughout this manual, are used to call attention to instructions concerning personal safety. Carefully read and follow these instructions and observe all SAFETY, DANGER and CAUTION graphics mounted on various areas of the machine.
Be certain anyone servicing this machine is aware of these SAFETY SYMBOLS and their definitions. If it is impossible to safely perform any of the enclosed maintenance and operational procedures, contact your regional Bucyrus service representative or the factory.
The following defines distinctions between safety instructions. In all these definitions the safety alert signal is used.
NOTE: This signal word denotes an item of required information pertaining to the equipment. A loss of time, assets, or minor injury may result if the appropriate action is not taken.
CAUTION:This signal word serves as a reminder of safety practices, or directs attention to specific safety practices which could prevent possible injury if precautions are not adhered to.
DANGER:This signal word denotes an imminently dangerous hazard which will result in death, serious bodily injury, or serious damage to equipment if not acknowledged and appropriate action taken.
DANGER:This signal word denotes an imminently dangerous electrical hazard which will result in death, serious bodily injury, or serious damage to equipment if not acknowledged and appropriate action taken.
Operating, maintaining or servicing this machine is dangerous unless performed properly. Each person must satisfy himself and his employer that he is alert, has the necessary skills, knowledge, proper tools and equipment for the task at hand. It is critical that all the methods used are safe and correct. Factory service representatives and specialists are available to provide additional information or technical assistance. The operator must be alert, physically fit and free from the influence of alcohol, drugs, or any medications that might impair his eyesight, hearing or reactions.
CAUTION: STORED ENERGY! Components on machine are heavy and removal of pins without proper preparation and precaution can cause serious bodily injury and/or damage to the front-end of the machine.
Safety must always be paramount!
Consult your supervisor when safety is in doubt.
SAFETY PRECAUTIONS
General Precautions:
•The employment of qualified maintenance personnel, through a scheduled maintenance program, is the best way to minimize machine downtime and maximize productivity of equipment.
•Keep hands, feet, and clothing away from rotating parts.
•Wear a hard hat, safety shoes and protective lenses at all times.
•Replace any and all safety and warning placards if they are defaced or removed from the machine.
•Think before you act. Carelessness is one luxury the service man cannot afford.
•Excessive or repeated skin contact with sealants or solvents may cause skin irritation. In case of skin contact refer to the Material Safety Data Sheet (MSDS) for that material and the suggested method of cleanup.
•Inspect safety catches (keepers) on all hoist hooks. Do not take a chance, the load could slip off of the hook if they are not functioning properly.
•If a heavy item begins to fall, let it fall, don’t try to catch it.
•Keep your work area organized and clean. Wipe up oil or spills of any kind immediately. Keep tools and parts off of the ground. Eliminate the possibility of a fall, slipping or tripping.
•Floors, walkways and stairways must be clean and dry. After fluid draining operations be sure all spillage is cleaned up.
•Electrical cords and wet metal floors make a dangerous combination.
•Regularly inspect for any loose bolts or locking devices and properly secure them.
•Use extreme caution while working near any electrical lines or equipment whether it be high or low voltage. Never attempt electrical repairs unless you are qualified.
•Check limit switches for proper operation.
•After servicing, be sure all tools, parts or servicing equipment are removed from the machine and secured in an appropriate storage area.
•Mechanical Brakes are designed for use as static holding brakes only. Use as a motion (dynamic) brake in emergency situations only.
•Use proper interior and exterior lighting.
•Install and maintain proper grounding and ground fault protection systems.
•Perform functional tests of all safety circuits.
•Allow electrical inspection and maintenance to be performed only by a qualified electrician.
Maintenance Precautions:
•Do not wear rings, wrist watches or loose fitting clothing when working on machinery. They could get caught on moving parts causing serious injury.
•Always wear a safety belt or harness when the danger of falling exists.
•Always have a second person to monitor the lifeline when working in confined spaces.
•Do not start an engine indoors unless adequate exhaust ventilators are provided and in operation.
•Never utilize the machine air or hydraulic systems for support when working on the machine. Deactivate or isolate the entire system prior to performing maintenance.
•Equipment should be parked on level ground at all times during machine servicing and periods of idleness.
•Cranes and hoists must be of sufficient capacity to lift heavier components (gearcases, etc.) Always work within the limitations of the equipment being utilized.
•Be sure heavy items are properly rigged and supported from cranes or hoists before removing supporting members from the machine.
•Utilize guide lines or ropes to minimize the swing of suspended heavy components.
•Have sufficient service personnel available when removing or installing large heavy items to maintain control at all times.
•Always use safety stands in conjunction with hydraulic jacks or hoists. Do not rely on the jack or hoist to carry the load, they could fail.
•When disassembling a machine, be sure to use safety stands and adequate cribbing to prevent tipping or rollover of components.
•When using an oxy/acetylene torch, always wear welding goggles and gloves. Keep a charged fire extinguisher within reach. Be sure the acetylene and oxygen tanks are separated by a metal shield and are chained to the cart.
•Use pullers to remove bearings, bushings, gears, cylinder sleeves, etc. when applicable. Use hammers, punches and chisels only when absolutely necessary. Always be sure to wear safety glasses.
•Use extreme caution when using compressed air to dry parts. Use approved air blowguns, do not exceed 30 PSI (207 kPa), wear safety glasses or goggles and use proper shielding to protect everyone in the work area.
•Be sure to promptly reinstall safety devices, guards or shields after adjusting and/or servicing the machine.
•Protective eye goggles should be worn at all times when working on the air conditioning system. Work on the air conditioning system only in a well ventilated area.
•Wipe away excess lubricants around bearings and gears. Never lubricate parts in motion.
•Always wear approved rubber gloves, and use insulated hooks or tongs when handling a trail cable.
Operating Precautions:
•Wear hearing protection when exposed to the following noise levels in excess of the period indicated:
8 hours at 90 dBa
4 hours at 95 dBa
2 hours at 100 dBa
1 hour at 105 dBa
30 minutes at 110 dBa
15 minutes at 115 dBa
•When in doubt about the noise level, wear approved hearing protection.
•Do not attempt to get on or off the machine while it is in operation. Notify the operator prior to any attempt to board/exit the machine.
•Do not move or operate the machine without first knowing the location and purpose of all personnel, test or support equipment, on or near the machine.
•Do not allow unauthorized personnel on board the machine while in operation.
•Use audible signals to warn of machine movements. A signal horn button is provided for this purpose.
•Do not propel until the travel route has been cleared of obstructions.
•Do not propel the machine on a slope greater than specified in the GROUND PREPARATION section of the Operators Manual for this machine.
•Prevent the trail cable from being dragged on the ground for long distances or at high speeds.
•Limit the amount of cable being dragged by the machine. Pulling too much cable will damage both the cable and the machine.
MACHINE OVERVIEW
The following diagram identifies major components of the Dragline. The following are the four major areas of this machine:
• Base Frame
• Rotating Deck
• External Structures
• Bucket and Boom
Nomenclature
The Base Frame or Tub as it is more commonly known, provides a stable platform on which rests the machinery house and external structures of this machine. In addition to its function as a platform, the Base Frame also provides the pivot point about which the entire dragline upper structures revolve.
• 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.