100 - JH Fletcher & Co.
Contents
1. failure to follow safe procedures such as ignoring maintenance problems and failing to protect the trailing cable itself All mine personnel must maintain a proper look out and know where the trailing cable is at all times The roof bolting machine should be taken out of service and not used until corrective action is taken if any of the following occurs 1 the cable can potentially pull or whip into the tram deck if there is no guard to prevent it from doing so 2 the cable whips or springs while being spooled possibly due to the flow setting being too high 3 the cable comes under tension and gets stretched or pulled such as if the pressure setting is too high 4 the cable s protective outer covering casing is damaged cut or cracked posing a risk for electrical current discharge such as electrical shock or spark generation 5 the cable reel control valve mechanism is not functioning properly 6 electrical surges occur during machine operation such as the machine power flickers or fades in and out 7 personnel do not know where the cable is or are required to work over or around the cable such that any cable movement could cause a person to loose his balance or to be struck by the cable 8 the trailing cable is run over by another machine causing damage to the cable 9 the trailing cable is run over by the machine and the machine becomes hung up Failure to follow any of these safety recommendati2. If your machine is equipped with a water box or duster and the holder is not in place contact Fletcher immediately in order to have the machine repaired Failure to properly maintain the trailing cable holder could result in serious injury or death from whipping entangled or damaged cable Fletcher Information Bulletin 100 February 2007 Page Five Cable Eye and Hooks Fletcher offers cable eye hooks See Attachment G that can be placed on the rear corners of the roof drill to help prevent the operator from running over cable while reverse tramming They also provide a smooth edge for the cable to wrap around These devices reduce instances of cable fraying due to pressure injury to the cable and its wires As above any damaoe to the cable itself creates a hazard that could result in serious injury or death Fletcher recommends you purchase these devices from us and review their placement on your machine with a Fletcher representative Training There is no substitute for training Fletcher believes that cable hazards and cable reel operation should be the subject of regular safety talks at your mine Enclosed is a cable safety flyer 5 copies that can be presented to your operators along with two posters that can be displayed in prominent locations to reinforce the dangers of whipping cable Fletcher strongly recommends that you plan to review this material with all users of Fletcher equipment as soon as possible CLOSING If you no lo
3. CAN ADJUST THE CABLE REEL VALVE NEVER MODIFY THE MACHINE WITHOUT THE APPROVAL OF THE MANUFACTURER ALWAYS BE AWARE OF CABLE LOCATION DURING MOVEMENT OF ROOF DRILL WATCH FOR AND AVOID WHIPPING SNAPPING CABLE WEAR APPROPRIATE PERSONAL PROTECTIVE EQUIPMENT EMPLOYER IDENTIFY TO OPERATORS OTHER ACTIONS THAT WILL PREVENT CONTACT WITH ELECTRICAL CABLE e REINFORCE COMPANY S POLICY ON HANDLING ELECTRICAL CABLE UNDERGROUND ELECTRICAL CABLE SAFETY IS YOUR RESPONSIBILITY FOR ADDITIONAL INFORMATION ON THE CABLE REEL SEE THE OPERATOR S MANUAL AND SERVICE MANUAL ANY COMMENTS OR QUESTIONS REGARDING THIS NOTIFICATION SHOULD BE DIRECTED TO MINE MANAGEMENT OR TO J H FLETCHER amp CO RISK MANAGEMENT DEPARTMENT P O BOX 2187 HUNTINGTON WV 25722 304 525 7811 EMAIL dcoopern infietcher com WARNING CRUSHING HAZARD NEVER STAND ON OR STRADDLE A TRAILING CABLE THAT IS BEING REELED IN FAILURE TO OBEY THESE INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH J H Fletcher amp Co Part No 139134
4. MINING EQUIPMENT J H FLETCHER amp CO Box 2187 Huntington WV 25722 2187 304 525 7811 FAX 304 525 4025 IMPORTANT SAFETY NOTICE INFORMATION BULLETIN NO 100 TO ALL OWNERS OPERATORS AND REBUILDERS OF ROOF BOLTING EQUIPMENT FROM RISK MANAGEMENT DEPARTMENT J H FLETCHER amp CO DATE MARCH 2007 SUBJECT POTENTIAL HAZARDS INVOLVING MINING TRAILING CABLE PREAMBLE All J H Fletcher amp Co Fletcher electrical face equipment utilizes a trailing cable The trailing cable cable is connected to the mine s electrical power grid and delivers electrical power to the machine The cable conducts high current electricity It also is a large heavy object Therefore it is imperative that ALL mining personnel maintain safe practices while working with and around a cable and the cable system This Safety Notice is a reminder of certain hazards and an overview of some of the components Fletcher incorporates into its machines in order to promote safety and reduce the likelihood of cable related injuries Most Fletcher roof bolting machines are equipped with a cable reel system This system allows the cable to be released automatically as the machine is trammed forward and to be mechanically taken up by activation of the cable reel A small quantity of roof bolting machines are equipped with trailing cable wrapping posts in which the cable is stored at the rear of the machine This system requires manua
5. l release and retrieval Operators and mine personnel are not at risk for a cable related injury if the user instructions published by Fletcher and safe working and maintenance practices are followed Any person including machine operators and any one that is working in the vicinity of a cable can be injured by a trailing cable if they do not pay attention to the cable if the system is misused or if there is a failure to maintain the cable system PURPOSE This Information Bulletin is published to remind operators and users of potential hazards that may arise from misuse and or failure to maintain the cable system SEE REVERSE SIDE Fletcher Information Bulletin 100 February 2007 Page Two GENERAL OVERVIEW If a Fletcher roof bolting machine is in use at your mine it should be inspected regularly meaning no less than once per 8 hour shift You should make sure that the cable reel system functions are operating properly and check for damage to the cable or to the cable reel and the entire electrical system All mine personnel should be frequently reminded and instructed of safety measures when working with and around trailing cable and the trailing cable system Training is essential Each operator helper and person assigned to work with and or around the vicinity in which a roof bolting machine is being used should be trained in safe cable procedures All should be warned of the hazards of serious injury and even death if there is a
6. nger own or operate a machine that might be affected by this notification please provide new ownership or machine location information by notifying David Cooper at dcooper jhfletcher com These reminders are provided to promote ongoing mine safety Fletcher recommends that you thoroughly review this bulletin make the changes where it may be applicable and train your operators to reduce the risk of injury to operators who handle cable Contact Fletcher s Service Department for assistance with ordering the parts needed If you have any questions concerning this bulletin or if you need additional training material please call the Risk Management Department at 304 525 7811 Tram Enable Fletcher Roof Bolters can now be equipped with a Tram Enable Pedal Control located in the tram deck in place of a hand actuated pump control diversion valve While tramming the machine the op erator keeps the Pedal pressed in which sends oilto the tram circuit When the operator leaves the tram deck the pedal spring returns to the OIL TO FRONT position allowing operation of the ATRS and drilling controls Diversion Valve Actuated by Foot Pedal J H Fletcher 2 Co Box 2187 Huntington WY 25722 2187 IB 100 ATTACHMENT B POST AT REAR OF ROOF BOLTER Canopy Support on Outside Corner IB 100 ATTACHMENT C ARTICLE ON CHANGING DIRECTION OF CABLE REEL VALVE FROM FLETCHER PRODUCT NEWSLETTER Q1 1998 Announcing Change to Cable Reel Valve U
7. nly for machines that have a water box protruding from the rear of chassis Contact J H Fletcher amp Co for specific information for your type of machine IB 100 ATTACHMENT G CABLE EYE NOTE Contact J H Fletcher amp Co about placement of any cable eye hook on your machine SAFETY PRESENTATION PLEASE READ AND Loki DISCUSS THIS NOTICE PETT TTTILTTITI WITH ANY EMPLOYEE WHO IS AFFECTED BY IT SUBJECT ELECTRICAL CABLE HAZARD WARNING CONTACT WITH ELECTRICAL CABLE COULD RESULT IN SERIOUS INJURY QUESTIONS TO OPERATORS WHAT ARE SOME OF THE HAZARDS WHEN WORKING WITH ELECTRICAL CABLE 1 CABLE THAT COULD COME IN CONTACT WITH THE OPERATOR IF THEY ARE NOT FULLY SEATED INSIDE THE TRAM DECK Crushing hazard Can cause severe injury or deat Keep all body parts Inside compartment when operating AM Cn fart Ma 139942 CABLE THAT IS SPOOLED TOO QUICKLY CAN WHIP OR SNAP MAKING CONTACT WITH THE OPERATOR HELPER OR BYSTANDER CABLE THAT COMES UNDER PRESSURE FROM BEING CAUGHT OR BOUND AN OPERATOR BYSTANDER COMES INTO CONTACT WITH THE CABLE DURING MACHINE MOVEMENT A CABLE THAT IS POORLY MAINTAINED COULD RESULT IN ELECTRICAL SHOCK CABLE REEL VALVE NOT PROPERLY ADJUSTED EMPLOYER DISCUSSION SESSION IDENTIFY OTHER HAZARDS THAT MAY ARISE WHEN USING ELECTRICAL CABLE DISCUSS COMPANY S POLICY ON HANDLING ELECTRICAL CABLE UNDERGROUND PREVENTING HAZARDOUS CONTACT WITH CABLE ONLY AUTHORIZED PERSON
8. ntil recently the new identification tag control handle and handle stop a cable reel on Fletcher which can be ordered from Fletcher J H Fletcher amp Cable Reel Control equipment was actuated Co strongly recommends the use of pushing the cable reel components when doing any kind of work on Fletcher control downward or equipment For further information contact the Risk inward The current Management department operational standard calls for pulling upward or outward to actuate the control This change in handle direction has been made in an effort to prevent inadvertent actuation of the cable reel By having the handle operate this way the risk of inadvertent operation by material falling on the handle or an operator falling into a handle is significantly reduced All machines should be modified for this method of cable reel operation The change requires a IB 100 ATTACHMENT D CABLE REEL PACKAGE VALVE This is an example of one type of cable reel package valve Information regarding the specific cable reel package valve on your machine s can be found in the Parts Book for that machine NOTE Only to be adjusted by a qualified maintenance person See Service Manual for additional information on the Cable Reel Package Valve IB 100 ATTACHMENT E CABLE STRAIN CLAMP Cable Strain Clamp Attached to Machine Without a Cable Reel IB 100 TRAILING CABLE HOLDER EXTENSION NOTE O
9. ons could result in serious injury or death The safety recommendations listed above and those discussed in more detail in the following are the responsibility of every mine owner and individual who comes in contact with a Fletcher roof bolting machine Fletcher Information Bulletin 100 February 2007 Page Three SPECIFIC HAZARD CHECKS TRAM DECK Tram Enable Pedal Machines built or remanufactured after 1997 are equipped with a tram enable pedal in the tram deck see Attachment A from Information Bulletin 77 The purpose of the tram enable pedal is to remind operators of the necessity of maintaining all body parts inside the tram deck while operating any tram control The machine should not be capable of being trammed without the operator fully seated inside the tram deck and his foot on the tram enable pedal Tram Deck Canopy Addition After 1995 all new and remanufactured machines have had the tram deck canopy support located on the outside corner of the tram deck see Attachment B This creates a barrier to prevent the trailing cable from pulling into the tram deck area Operators should be reminded to never attempt to pull the trailing cable into the tram deck area Any action such as pulling the cable into the tram deck can cause damage to the cable resulting in an electrical shock or spark hazard Also this type of conduct creates hazards that could cause serious injury or death such as a person being struck by the cable as i
10. sonnel should thoroughly read the Service Manual that provides information on the cable reel package valve CABLE REEL The cable on the roof drill must be protected at all times to ensure power is safely transferred to the roof drill The cable is an electrical cord In comparison to a common household cord that conducts 110 volts this cable can provide between 440 and 950 volts of electrical power All mine personnel must have a respect for this vital piece of equipment and work to protect it In addition to ongoing safe work practices to minimize the possibility of entanglement overstretching of the cable damage to the cable casing and or separation of the cable from the roof drill the following machine parts may be used Cable Retainer Roof drills without a cable reel are required by MSHA to have a cable strain clamp holder at the rear of the bolter This clamp ensures that the cable does not separate from the control box see Attachment E It is essential that this clamp be properly maintained at all times to preserve the integrity of the cable Trailing Cable Holder On a small number of roof drills a water box or duster is located on the rear of the bolter s bumper However it is possible that the cable could become entangled around the box In order to prevent this occurrence a trailing cable holder has been manufactured see Attachment F The holder ensures the cable is contained at the rear most area of the roof bolter
11. t spools or creation of tension within the cable causing it to fling or whip If your machine does not have a tram deck canopy addition it is recommended that you contact your local Fletcher representative for assistance in changing your machine Cable Reel Control A detented handle is located in the tram deck When activated pushed up the cable is taken up spooled In order to release the cable the control must be in the neutral position and the operator must be seated with his foot depressing the tram enable pedal while moving the tram control or controls to the forward position The trailing cable is also released when using position controls to move the machine forward while the cable reel handle is in the off position Prior to 1998 the cable reel control mechanism was different In the Product Newsletter Q1 1998 see Attachment C Fletcher notified customers that we had reversed the hydraulic flow in this circuit so that the operator must push up on the handle to spool the cable up and return it to neutral to release cable as the machine moves forward Inspect your machine to confirm that the cable reel control is properly functioning as described above If it is not or if you have not implemented the 1998 change we strongly recommend that you order the change kit today part no 300282 Fletcher can assist your mine mechanic in making this necessary change Operators and maintenance personnel should be reminded that the spool handle m
12. ust be pushed up in order to spool the cable Failure to maintain the system in this fashion could cause serious injury or death by unexpected spooling of cable SEE REVERSE SIDE Fletcher Information Bulletin 100 February 2007 Page Four Most mine operators and machine operators adopt a means of signaling personnel as to when the cable is being spooled There are many different signaling methods such as verbal announcements Each mine and operator should have a consistent signaling process and ensure that all individuals that work in the area of the cable know and understand what the signal is for cable activity and what the signal means Failure to consistently adopt and use a signaling system could result in serious injury or death because a person was standing too close to or in the vicinity of a moving cable Cable Reel Package Valve The package valve on the machine controls the speed of the cable and amount of tension when it is spooled up or is released from the cable reel see Attachment D The package valve must only be adjusted by qualified maintenance personnel at the mine Adjustments of the valve by unqualified personnel could result in the cable being spooled up too fast or in the pressure being set too high or too low to take up the cable properly Both situations could result in serious injuries Such as back strain or head injury or death due to contact with a whipping cable To properly adjust this valve the maintenance per
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