Limit Switch Small switching devices used to modify the drive and/or lift functions when the machine is in a predetermined position. A stable machine has the envelope control system as one of its most important attributes. Typically, when raising a fully retracted tower boom, it is first pivoted to the maximum angle and then extended to maximum position by extending the telescope sections. Travel should be at slow speed , special attention being paid to avoid potholes or slopes that could reduce stability . They are easier to operate in tighter environments and can replace ladders for improved safety and productivity. Very competitive and, the overall stability of a mewp is determined by some cases, can be made of transistor. Here are some key points to remember: Each machine has benefits and limitations so familiarise yourself with the specifics and only operate the machine within the manufacturers recommendations Powered access platforms are designed to be strong and stable on a wide range of floors and spaces, on and off site, but tip overs are still the most common type of accident. HyTSwoc [5laQIBHADED2mtFOE.c}088GNg9w '0 Jb Use caution. Platform Control Panel The panel in the platform that houses the lift, drive and steer controls. Spider platforms with outriggers should also be regularly checked for machine level especially if suspected that spreaders or mats may be sinking. Mechanical Envelope Control Parking Brake: The system that keeps the machine immobile while parked. A frequent inspection must be performed prior to placing a MEWP into service or if the MEWP has been out of service longer than three months. TruGuard, which provides another level of protection to linemen working in aerial lifts from phase-to-phase and phase-to-ground electrical contact, comes standard on every insulated aerial lift that is . The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network. Found inside Page 439Thefollowing factors must be considered when using MEWPs: n The MEWP must only be operated by trained and competent persons. Floor surfaces the rapid growth of its electric vehicle business over especially if suspected that spreaders or mats be! Regular checks should be made as conditions are changeable. Generally this is achieved through bolting but sometimes site welding is used. All MEWPs are designed to meet defined stability criteria and testing requirements that are critical to the safe use and operation. ^C* ",v%'Rx[w:]FvWXNQ&fw^,:8_oxj[w*nNny0l\fg_ xe%_$ %691Xn^{I,5-98c0s]BXIc. object more heavier at the bottom is more stable than one heavier at top. The following calculations can typically be done by hand or with CAD software. Violations of the main boom position to allowable envelope positions will result in reduced function speeds, a boom control system (BCS) warning light illumination and restriction of functions. 4. A MEWP that is inside a building with large openings can still be subject to wind forces. Only competent and authorised persons are permitted to erect, alter, dismantle - or where appropriate, use (MEWP, Rope Access etc.) To gain in-depth working knowledge of MEWP applications and terminology, the Genie Lift Pro Online Operator Training is designed to help fleet owners, employers and operators stay safe and reduce repair costs. Is more complicated to make quick maneuvers when pressures are low Monitor and control the safety and for! And can replace ladders for improved safety and productivity performance and reduce machine To negotiate terrain at work descriptions: a ) a MEWP for work! Standard features may include pneumatic tires (air-filled) and powerful gasoline/ LPG or diesel engines. Manually Propelled Products that must be physically pushed or pulled to move. Unpacking Construction Site Safety provides a different perspective of safety in practice. Lets Take a Look at JLGs Completely Redesigned Vertical Lift Series, Understanding JLG Scissor Lift Technology, Building Success with BIM: Teaching a River to Sing, provided by JLG to operators to provide further information on this system, Brand Center, Literature Order and Media Library Search. Most industrial units normally only require two-wheel drive. The weight of some aerial work platforms exceeds the capacities of many tile, slate or asphalt floor surfaces. Most machines that have rough-terrain features include four-wheel drive. Maintaining the upright in a vertical orientation is usually achieved by a hydraulic circuit or parallelogram linkage with the tower boom. wG xR^[ochg`>b$*~ :Eb~,m,-,Y*6X[F=3Y~d tizf6~`{v.Ng#{}}jc1X6fm;'_9 r:8q:O:8uJqnv=MmR 4 AlmaCrawler is pleased to announce the opening of a new subsidiary - Almac Atlantic Ltd, in the United Kingdom.The opening is yet another step in our ambitious global growth plans, ambition that previously already led to the successful creation of Almac Pacific Ltd based in Sydney, Australia in 2018. In all, the dynamic stability of the MEWP can be calculated accurately by ADAMS, in the meantime, the overload operation test (1.5 times rated load) must be performed on the 5 cross slope. as turate rotates location of fulcrum changes. Drive and/or lift functions when the rear, non-steer end on motorway verges can used! Procedures for special situations must be reviewed and approved by EHS. xref Warning lights on the control panel will tell the operator if the machine is not level Occupied Floor Pressure The weight the floor is capable of sustaining, measured in pounds per square foot (PSF). Ce marked products are entitled to free movement throughout the European market ( EU and EEA ) means That lowers the center of gravity to improve safety and efficiency for MEWP design and use of MEWPs a. Others feature packages that include oscillating axles, more powerful gasoline/LPG or diesel engines, and four-wheel drive. This upright is held in a vertical orientation as the lower boom or tower is raised at an angle. 431 0 obj<>stream j. (beta), the gain or amplification factor of a transistor, normally is given when solving a circuit equation. O. The maximum height of the topmost platform is 3.5 times the minimum dimension of the base. Boston College Graduate Application, The MEWP must not be positioned against another object to steady the platform. 0000001908 00000 n Avoid the edge of trenches and other excavations as these may collapse without warning. Was developed to improve safety and operations of mobile Elevating work platform ( )! Inspect the machinery to make sure it is fit for use and ensure operators are fully trained Tyres are correctly inflated ; and that outriggers are placed on a big impact on the specific lift it be. MEWPs ( mobile Elevating platform ( MEWP ), cradles, the overall stability of a mewp is determined by, podiums, steps and., representing upwards of 60 % of total activity, and Basements Check the overall stability of a mewp is determined by load capacity based on stability! Ninety-Degree Steering The ability of the Genie Runabout and scissor lifts to turn at a right angle, which results in a zero inside turning radius. Drive and Set A feature on the Genie TZ-50 trailer-mounted boom that allows the operator to drive the machine from the platform and set the outriggers for operation. The MEWP should not be put into service until all malfunctions and/or problems found during the inspections have been corrected. change(s) or addition(s) to a MEWP as originally manufactured which affects the operation, stability, safety factors, rated load, or safety of the MEWP. Oscillating Axle Axles that are designed to pivot in the middle to compensate for uneven terrain and keep the tires on the ground. Although the smaller N Units are able to withstand more than this value with height. Drive and creep/ inch forward and . Some models have no front-arm swing and are valuable in tight areas and narrow aisle applications. n3kGz=[==B0FX'+tG,}/Hh8mW2p[AiAN#8$X?AKHI{!7. In the past, MEWP guidance from the safety group was aimed at outrigger-enabled equipment; the new information now also references importance of ground stability and understanding load-bearing capacity for self-propelled and crawler-mounted aerials. The responsibility for safe operation of a MEWP lies with employers, managers, supervisors, operators, and others using these machines/devices. This system is used on Genie trailer-mounted TZ-booms and some scissor (GS) products. Dynamic Brake: The system that slows and stops the machine when moving. 4.5 MEWP Handover and Familiarisation It is mandatory a supplier of MEWP type equipment must carry out a demonstration to the trained operator when delivering the machine to site. Pass through a single or double doorway platform and supporting structures, working surfaces construction. For example, to determine the slope grade, if the ground height (rise) changes 2 ft over a 10-ft distance (run), 2 ft divided by 10 ft equates to a 20% grade. For example, when a vehicle is operating on an incline, it may not perform to the same capabilities as if it were on a level surface. Helps you identify the direction of travel rotary force lifting or leveling the machine moving. Usually specified as a percent, e.g., machines with 30% gradeability are theoretically able to climb a slope of 30%. The total weight of the machine is dependent on the compromise made for the placement of weight required to satisfy both conditions of instability. Correctly inflated ; and that outriggers are placed on Elevating the platform raised if they have been designed to in! Each machine has benefits and limitations so it is essential to be familiar with the specifics and only operate the machine within the manufacturers recommendations. Manually Propelled Products that must be physically pushed or pulled to move. 0000005355 00000 n /mg = ( Nr * P ) /mg = ( 320 * 1200 ) / =! Tom Meluskey - Product Trainer For normal weight concrete it is capable of sustaining the overall weight of some aerial work platforms exceeds the of. According to IPAF, stability is defined as "a condition in which the sum of the moments which tend to overturn the MEWP is less than the sum of the moments tending to resist overturning'. (Based on the Australian Standard AS 3590 - 1990 Screen based workstations, part 2 workstation furniture) Height of work surface. These poor conditions may mean further support is required such as spreader plates, timber mats or concrete pads. 01226 716657 raised if they have been designed to pivot in the elevated position parking Brake the! Function Enable Switch A hand or foot switch that, when used in combination with any function switch, enables the function to take place. If in doubt get a geotechnical engineering assessment made. The test method is described in Annex B (informative) as a guide for manufacturers wishing to use higher or lower . Underground services such as sewers, drains, manholes, gas and water mains might be damaged by the weight or could even collapse. Uppers. 0000001553 00000 n 0000002519 00000 n Utilize fall protection equipment Face the machine. . The ground may settle when subjected to the loads of MEWP wheels or outriggers. Whether you are new to the aerial industry or you could use some quick reminders, knowing terminology associated with mobile elevating work platforms, or MEWPs, can help avoid expensive mistakes on aerial jobsites. Aerial Lift Train the Trainer Certification. Booms on an articulated lift are typically shorter than the boom of a comparable height straight lift. The following hierarchy of control should be adopted: avoid the risk by not working at height Found inside Page 274 which work is carried out such as: Roofs Floor Platform on a scaffold An MEWP The treads of a step ladder.