CONTENTS: What Are Your Escalator Handrails Telling You?
Transcription
CONTENTS: What Are Your Escalator Handrails Telling You?
CONTENTS: What Are Your Escalator Handrails Telling You? PRODUCT LISTINGS: Dale Tolar & Associates, Inc. • ECS Corporation • EHC Global • Elevator World • PTL Equipment DEMYSTIFYING THE STEP/SKIRT PERFORMANCE INDEX TEST A DVD by NAESA International & EIWPF A complete guide to understanding and measuring the Escalator Step/Skirt Performance Index under ASME A17.1/CSA B44 This DVD is a visual presentation on the history, principles, and requirements of the Performance Index Test complete with clearly labeled diagrams, animations, examples and footage depicting an actual test. The presentation is broken up into modular units, allowing the user to explore topics based on level of interest. Each DVD comes with a Pocket Guide that details the Performance Index Test step by step. Length: 65 Minutes Regular: $175.00 Subscriber: $148.75 Focus on Escalators, Moving Walks S PE C I A L S E C T I O N and Components What Are Your Escalator Handrails Telling You? Ensure the safety of the riding public and the longevity of escalator handrails by watching for these telltale signs. by Patrick Bothwell As with any wear item, handrail service life will vary greatly depending on passenger loading, surrounding environment and alignment. Inspections required by code are focused on ensuring the safety of the riding public, rather than service longevity or value for the building owner. These need not be mutually exclusive. Regular handrail inspection will not only keep the inspectors smiling, but, with a little interpretation, it can save money in the long run and virtually eliminate the need to expedite replacements. We will explore a number of the more common signs of impending handrail trouble, identify the problem and look at possible courses of action. time to schedule a handrail replacement before the bulges get to the size where they will trip the handrail entry switch. The good news for those who have NT thermoplastic handrails (ELEVATOR WORLD, December 2011) is that they will never delaminate. Cracked Lips? Cracks in the handrail lip area can pose a real pinching hazard and should be dealt with immediately. While lip cracks Continued Old and Wrinkled? The rubber handrail surface will start to wrinkle and crack with age and exposure to the elements. Over time, typically seven to 10 years, the protective ingredients in the handrail cover will be reduced, and, much like our skin, will start to show its age. Aging can happen prematurely in aggressive environments with high ultraviolet light or ozone present. Cleaning or sanitizing with aggressive solvents or other compounds will also take years off a handrail’s life. Use only mild cleaning agents, preferably those designed for escalator handrails. Rubber handrails can benefit from regular application of rubber protectant. Bubbles and Bulges? Small bubbles, eventually forming into larger bulges, indicate that the internal layers of the rubber handrail carcass have delaminated. These layers of rubberized fabric have come apart, leaving a pocket of broken-down rubber fragments and air. When found within the first few weeks of operation, delamination can be the result of a handrail-manufacturing defect, but it is more commonly caused by excessive drive pressure. If identified quickly, handrail setup can often be adjusted to stop the delamination process from continuing, and, on newer handrails, repairs can be possible. On older handrails, bubbles and bulges are a good indication that it is can result from age, theytoare commonly caused by the Age and exposure themore elements will wrinkle and crack surface. issues. Overly tightened handrails handrailrubber setuphandrail and tensioning will lead to cracking just as quickly as those left too slack. August 2015 • ELEVATOR WORLD 75 Optimal handrail tension lies somewhere in between and will vary with different escalator models. A handrail temperature of more than 5°C above ambient is a good indication that tension is still in need of adjustment. Dust Buildup and Frayed Fabric? During the course of a handrail’s initial running-in period, some dusting is to be expected. This is completely normal, but excessive dust buildup is not. At the first sign of excessive dusting, the handrail should be removed, and the layer of sliding fabric should be inspected for irregular wear patterns. Debris should be removed from the drive path. More often than not, the wear pattern will give clues as to where to look to remedy the issue before it leads to irreparable handrail damage. Conclusion In the case of a shut-down escalator — either due to breakdown or code-violation handrail replacement — decisions are made in haste, with priority given to getting the unit back into service. Too often, especially with full-maintenance contracts, the choice is made to replace a handrail using the lowest-cost option, often to the detriment of a long and trouble-free service life. Taking the time to piece together the handrail’s story is a sure way to reduce costs associated with having to expedite shipment of replacement parts when a unit is shut down. Patrick Bothwell is director of Sales at EHC Global. He can be contacted at email: [email protected]. This page, top to bottom: Bubbles and bulges indicate that the internal layers of the rubber handrail carcass have delaminated. Lip cracks are caused by handrail setup and tensioning issues. Excessive dust buildup can fray the handrail’s fabric. 76 www.elevatorworld.com • August 2015 Focus on Escalators, Moving Walks S PE C I A L S E C T I O N and Components PTL Equipment ES1 - Stop Station Easily accessible to concerned riders, our ES1 STOP STATION won’t be hard to find in an emergency. This vandal-resistant unit allows for ease of use while blending in with the decor of the existing escalator. Equipped with a liftable cover and made of stainless steel, the ES1 exceeds ASME code requirements. Add our positive-stop pushbutton and self-resetting cover and you’ve got the final touch and security to a potentially life-saving device. Contact PTL Equipment for additional information at 1-800-736-2120 or visit us at www.ptlequipment.com. The New ECS EHC Global The New ECS Corporation, under new ownership is making a major impact in the elevator and escalator industry. Strategic personnel additions and key organizational and operational changes have clearly made the New ECS a key supplier to the industry. The company has continued to revamp and improve its operation with a variety of investments from people, to inventory, to systems, and equipment. The most recent investment is a high powered conveyer washer that improves the power washing, the completion time for step refurbishment, and is much more energy efficient. Centrally located in the Chicago area, ECS can deliver products to almost any location in North America quickly. Along with the incredibly efficient refurbishment program, a new roller production facility, a new robotic welder, a new blasting machine, brand new steps, arguably the widest selection of step chains in the industry, an additional facility that now houses a 70% increase in inventory levels, and onsite support visits, the New ECS is quickly becoming the first choice among service providers for parts and solutions. Contact Rick Milefchik directly at 309.752.8348. Our easy-to-clean thermoplastic urethane handrails provide diverse solutions for all customer requirements by combining unique aesthetics, durability and ease of installation. Superior vandalism resistance and smooth tracking ensure optimum alignment as well as longer operational life of handrail and drive components. NT requires less power to drive - making it the most energy efficient escalator handrail available. Manufactured in an ISO 14001 facility, NT handrails are recyclable and engineered to meet the highest environmental standards. For more information, contact EHC Global at [email protected] or visit us at www. ehc-global.com. ECS Corporation 2741 S 21st Avenue Broadview, IL 60155 www.escalatorparts.com August 2015 • ELEVATOR WORLD 77 Focus on Escalators, Moving Walks S PEC I A L S E C T I O N and Components EHC Global Elevator & Escalator Maintenance for Building Managers, 2nd Edition PTL Equipment ES2 - Start Station* EHC manufactures hundreds of polyurethane roller designs for a wide range of lift and non-lift industry applications. RiteLine rollers are manufactured using high-grade materials and are available in a variety of polyurethane tread options to provide the optimum balance between durability and performance. High-quality bearings and hubs ensure reduction of noise and undesired vibration. A wide range of customization options and specialty design services are available. For more information, contact EHC Global at [email protected] or visit us at www.ehcglobal.com. Of all the equipment in a building, vertical transportation is the one and only mechanical/ electrical systems with which building occupants routinely have direct, physical contact. For a building to be a successful venture, in addition to providing a pleasant environment for occupants, its mechanical and electrical systems must provide safe and reliable service – particularly with respect to vertical transportation. While the primary responsibility for maintaining the vertical transportation systems rests with the maintenance specialists and contractors, there are many aspects of which owners and managers must be aware. This manual has been developed to explore the responsibilities of building owners and managers, as well as maintenance providers, in an effort to provide guidance in establishing an adequate maintenance program that will be a long-term benefit to building occupants and the equipment that serves them. This book will also assist building managers in making informed decisions regarding upkeep and regular maintenance of elevators and escalators under their control. Softback, 108 pages, Wt. 2lb. When it’s time to restart your escalator, authorized personnel won’t fumble with our ES2 START STATION. The same key unlocks the clear door and activates the motion direction keyswitch, and the door springs open for hassle-free access to the button sub-plate. Built to last the stainless unit resists abuse and normal wear, frustrating vandals and providing years of reliable service. Contact PTL Equipment for additional information at 1-800-736-2120 or visit us at www.ptlequipment.com PRINT and PDF: Regular: $49.95 Subscriber Discount: $42.46 To purchase this book, visit www.elevatorbooks.com or call Elevator World at 251-4794514 ext. 11 or ext. 19. 78 www.elevatorworld.com • August 2015 *Start and Combination Stations available in designs to meet both NYC and National Code requirements. Focus on Escalators, Moving Walks S PEC I A L S E C T I O N and Components EHC Global Loaded Gap/Comb Impact Tool PTL Equipment ES3 - Combination Station Make escalators safer with our D-Flector Safety Brush. Designed to stringent quality and durability specifications, D-Flector solutions are available for all escalator and moving walk applications. The flexible spine allows for simple installation and removal for routine maintenance, saving customers time and money. • Quick installation • Meets safety code requirements • Slender profile provides an attractive appearance • Light weight for reduced shipping and handling costs For more information, contact EHC Global at [email protected] or visit us at www. The Tolar Impact Tool is a dual-purpose product used to verify the stationary loaded gap test as noted in ASME A17.2, 7.17.2 (b) (1)-(8) and the comb-plate impact test A17.2, 7.7.2. The tool checks both the vertical and horizontal forces for setting comb and skirt switches. It also checks distance at proper pressure to the step from the skirt. It has a digital readout and is all aluminum enclosed in a Pelican™ brand impact-resistant case with load cells that can be removed for annual calibration. The tool has an attachment that will allow the test to be performed under escalator skirt brushes so that the removal of the brushes is not necessary. The product was developed by Dale Tolar of Dale Tolar & Associates Inc. in Fort Worth, Texas. The 57-year veteran of the elevator industry was inspecting a group of 50 new escalators at a new Dallas/Fort Worth International Airport terminal several years ago with a skirt and comb impact tool he found rudimentary and inaccurate. This prompted Tolar and his son (a modernization superintendent for a major company) to begin development of a better tool intended to not only rectify the problems they found in the existing tool, but also be cost effective, simple to use, robust and accurate. Tolar has been a QEI since 1989 and worked with ESCO and Otis. He owned Tarrant Elevator Service of Fort Worth for several years before selling it to Dover and becoming a full-time inspector, first for Fort Worth and then for Texas, for which he currently inspects. For more information, contact Dale Tolar & Associates, Inc. at (817) 925-0504 or dale@ Combining the best of both our ES1 STOP and ES2 START stations, this all-in-one unit is readily mounted in the curved newel deck via our trim frame, or proudly secured via a custom made pedestal adjacent to the handrail. Contact PTL Equipment for additional information at 1-800-736-2120 or visit us at www.ptlequipment.com ehc-global.com. daletolar.com 80 www.elevatorworld.com • August 2015 *Start and Combination Stations available in designs to meet both NYC and National Code requirements.