Issue 2 - JH Fletcher & Co.
Contents
1. To prevent these low oil indicators from coming on the operator needs to simply check the oil at the beginning of each shift and depending on their circumstances throughout the shift Always consult the operator s manual for how your specific machine may indicate a low oil condition and how to properly add hydraulic oil to your tank Page 3 Issue 2 2009 Roof Bolt Magazines Carousels Attention all owners of Fletcher Industrial Minerals Roof Bolters with multiple roof bolt magazines carou sels There has been a design improvement concern ing the fasteners used to secure the roof bolt spring clips on your bolt magazine carousel These spring clips hold the roof bolt in place on the bolt magazine carousel before the bolt is installed in the roof In the past the fasteners used to secure these spring clips consisted of 8 32 x 1 lg fillister head or Phillips head screws along with 8 lockwashers In a number of cases this old style fastener setup allowed the roof bolt to bottom out on the screw head before it was fully installed in the spring slip This resulted in trouble installing the roof bolts on the bolt magazine carousel and excessive wear of the screw heads holding the spring clips due to the roof bolt contacting the screw heads The design improvement requires replacing the existing 8 32 x 1 2 screws and 8 lockwashers with 8 32 x 12 button head cap screws Fletcher PN 131722 The design change results in a signifi2. Fletcher J H Fletcher amp Co www jhfletcher com INSIDE THIS ISSUE Page 2 Low Oil Levels Page 3 Roof Bolt Carousel Insulation Blanket Documents Q amp A Page 4 Personnel FSI Fletcher Mining Equipment 3000 Series Roof Bolter www jhfletcher com indroof htm J H Fletcher amp Co plans to send copies of this newsletter electronically in the near future If you wish to receive the newslet ter via e mail please fill out the form on page 4 and include your e mail address Please mail this form to J H Fletcher and Co P O Box 2187 Huntington WV 25722 2187 Product Newsletter Pletcner 7a EQUIPMENT UNDERGROUND MINING EQUIPMENT INDUSTRIAL MINERALS Rock DIVISION Issue 2 2009 Last of the Great Engineers J Robert Fletcher 1915 2009 Bob Fletcher founder of J H Fletcher amp Co died on Memorial Day at his home in Hunting ton WV He was the last of the great engineers involved in the mechanization of our nation s underground coal mines After earning his degree in Mechanical Engi neering from the University of Illinois he and his father J H Jim Fletcher formed an engi neering and consulting company in Chicago in 1937 They worked extensively on new sys tems in particular the development of off track supply haulage and mainline belt systems in the Midwest coal fields In those early years he collaborated with industry legends Chief Aronson Art Lee and John Boyd t
3. assure safe efficient and reliable machine operation Dirty hydraulic oil not only leads to premature component failure but it actually creates a safety hazard Dirty hydraulic oil can lead to a control valve sticking and a stuck control valve can cause a serious accident The importance of maintaining a sufficient supply of clean hydraulic oil in the reservoir cannot be over emphasized In this article we will identify the ways your machine may be designed so that a low oil condition can be detected First some machines may be equipped with a float switch located on top of the hydraulic tank Machines with a float switch are either set up with a low oil warning light Shown on the controller cover or the ability to shut down the ma chine when the level reaches a certain point Second the machine may be provided with sight plugs on the hydraulic tank In this instance oil needs E k J to be added when the machine is less than three quarters of the way full or when you can only see oil in two sight plugs Third some machines have an oil level tube Oil HYD WHSW red 0890F q oat dM WE Oil Level Tube lt a needs to be added when the tube is less than three quarters of the way full Fourth some machine have a low oil warning indicator When the hydraulic oil temperature gets too high from lack of oil there is a ia warning light that will come on in the tram deck to alert the operator
4. cantly Insulation Blanket J H Fletcher amp Co will now be offering exhaust manifold and turbo insulation as an option for diesel machines The insulation blanket reduces the possi bility of flammable liquids contacting those hot sur faces as well as preventing contact by the operator J H Fletcher amp Co recommends you take this option the next time you are purchasing a diesel powered machine from us smaller screw head height which eliminates the problem of the roof bolt bottoming out on the screw head when installed in the spring clips a med 2 Ble 4 7 A z Z A Document Clarification With each new or modernized machine J H Fletcher amp Co provides the following documents Operator s Manual one shipped with the machine and 5 copies Service Manual one laminated and one paper and Parts Book one laminated and one paper All of these documents are also provided on a CD Service Manuals and Parts Books should be delivered within six weeks of receiving your machine If you do not receive these documents please contact our Parts Books department at 304 525 7811 exten Q amp A Can any lubricant be used with a pneumatic resin inserter to assist with glue insertion in the drilled hole A The use of lubricant should be evaluated closely with your resin manufacturer To confirm proper bolt installation go to a safe non working area of the mine and install a bolt then perform a pull te
5. o transform underground safety and productivity In 1947 Bob and his brother Bill 1921 2008 moved to Huntington WV to expand their reach into the Appalachian coal fields With the advent of roof bolting in the post war period they purchased a garage apartment and began manufacturing the first mobile roof control drills in 1950 Working closely with industry leaders such as Dave Zeeger Adler Spotte Buster Roberts and Woods Talman the company earned a reputation for innovation and custom design flexibility by developing the first internal dust collection systems 1952 introduc ing the first dual head drills 1956 and the first machine mounted ATRS tempo rary roof support systems 1969 Over the course of his long career Bob Fletcher s innovations saved the lives of literally thousands of miners Of the dozens of manufacturing companies spawned by the mine mechanization of the mid 20th century Fletcher is one of the few to survive and thrive as an independent entity Control of the closely held company remains securely in the hands of the family With son in law Sam Duncan CEO son Jim Fletcher Vice Chairman and grandsons Rod VP Production and Chris Assistant Safety Director Duncan active in the business J H Fletcher amp Co looks forward to continuing the legacy of its founder Page 2 How to Detect Low Oil Levels Issue 2 2009 Keeping the hydraulic oil tank filled with clean hydraulic oil will help
6. oduction equipment that unexpected down time is limited However required maintenance on your Fletcher equipment peer not have to interrupt your production objec tives J H Fletcher amp Co now provides maintenance services through Fletcher Service Inc This company s purpose Is to provide timely audits on Fletcher equipment to identify areas that require attention and prevent un scheduled down time Fletcher Service Inc can provide you a cost effective audit program on your Fletcher equipment and perform needed repairs before a problem turns into lost productivity Through a planned audit program you can always keep ahead of required maintenance issues on your equipment If you are interested in this service please call Mike O Leary Sales Manager in our Industrial Minerals Department You can email Mike at moleary jhfletcher com FIER ppt ted Viem
7. st Page 4 Personnel Ben Newlon is the official Fletcher Scaler contact for all scaler related technical questions when your area service representative is unavailable As a Mechanical Engineering graduate of Virginia Tech Ben has worked for Fletcher for over five years primarily in the Industrial Minerals Division Ben is currently the Project Engineer for both the Fletcher Scalers and the Industrial Minerals Roof Bolters Ben can be contacted at ext 228 or by email at bnewlon jhfletcher com J H Fletcher amp Co on the Web www hfletcher com Now Available On Line Literature Newsletters Bulletins Published Papers INDUSTRIAL MINERALS FREE SUBSCRIPTION FORM The information contained in this newsletter has been obtained from sources believed to be reliable and the editors have exercised reasonable care to assure its accuracy However J H Fletcher amp Co COMPANY does not guarantee that contents of this publication are correct and statements attributed to other Name sources do not necessarily reflect the opinion or position of J H Fletcher amp Co Title Published by J H Fletcher amp Co Box 2187 Address Huntington WV 25722 2187 City State Zip J H Fletcher amp Co Box 2187 Huntington WV 25722 2187 304 525 7811 E Mail address Issue 2 2009 Fletcher Service Inc lt is extremely important when you purchase a piece of pr
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