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Conventional piling equipments generated a great deal of "vibration" which caused not only the intolerable discomfort but also serious damages to surrounding buildings, roads, railways, etc. Japan is one of the most advanced countries of "anti-pollution" technologies and regulations. After birth of this revolutionarily environmentally-friendly piling equipments, the Japanese Government strengthened the legal regulations for "noise & vibration" at the construction job site. Each sheet pile can be driven or extracted quietly simply pushed in and pulled out virtually without any noise or vibration.
Reaction Stand to start the job or on the installed piles, it requires only a small crane to handle the sheet pile and only three staffs; one machine operator, one assistant to install the pile into the machine and one crane operator.
For more details, please refer to the pages of "GEOGRAPHICAL DIFFICULTIES & SOLUTIONS" in this web site. Pile Driving Rigs are one of the most popular piling equipments for environmentally-friendly solutions for noise & vibration problems of piling jobs in urban areas, where there is a reasonable working space. START : Fixed eccentric pendulum and movable eccentric pendulum placed 180 degrees on line of the axis start rotation ( zero start ). OPERATION(MAX) : At the moment when the frequency has exceeded the ground resonance level, the movable eccentric pendulum is automatically converted to generate max vibration amplitude ( illustration – left ). STOP :Eccentric pendulums return 180 degrees on line of the axis to make the amplitude zero ( zero stop ).
For your information, my hard drive (the one pictured above) is wired so tight that it barely moves during transportation no matter how you tilt it. I am Matthew Doucette of Xona Games, an award-winning indie game studio that I founded with my twin brother. Chase Ergonomics is a leading manufacturer of repetitive strain and injury products helping to prevent injuries to the back, wrist, ankles, knees, and elbows. It is our belief that studies favorable to back supports, which caused OSHA to reverse its former position on the efficacy of back belts, have had and will continue to have a major influence on federal and state ergonomic policy. The support should be worn over the first layer of clothing--such as a shirt or t-shirt--but not over a vest or jacket. Separate the wide elastic cinch straps from the primary belt, which is the wide inside belt.
Adjust the shoulder straps so the support hangs loosely at the level where it will be worn. Pull both sides of the primary belt around the body and pull the right side past the center.
For a heavy lift, use the TRIPLE LOCK: Undo the cinch straps and pull the left strap past the middle, then overlap the right one for a much tighter fit. Positive vertical locking system achieved through two-way-stretch binding and rubberized interior stay pockets. The Iowa Spine Research center of the Biomedical Engineering Department at the University of Iowa and patent co-applicant Chase Ergonomics, Inc.
The breakthrough discovery used in creating this support is a new understanding of how the human body reacts to sudden, unexpected events (accidents) which result in applied loading (stress) to the lumbar spine. This chart compares our exclusive Gelfom composite material to other materials currently sold as anti-vibration material.
Hand-Arm Vibration Syndrome (HAVS) affects millions of workers worldwide who use electric, gas and pneumatic power tools or stationary tools that transmit vibration through something the worker must hold. These workers are found in virtually every industrial classification but especially in manufacturing, mining and construction. Believing that a material could be developed to meet any testing standard applied to vibration reduction materials - including Europe's EN ISO 10819 - Chase Ergonomics, Inc. Among the specified conditions in the standards are the gripping force, feed force, room temperature, humidity, conditioning of gloves, fitting of gloves, test period, posture of the test subject and vibration signals being measured. Versatile protection from various vibration frequencies encountered when using power hand tools. Full finger style features fluted fingers, tailored cut for full range of motion without fatigue.
Sturdy, comfortable premium series offers protection from electric, pneumatic, gas and hydraulic power tool vibration. Sturdy, comfortable premium series glove offers protection from electric, pneumatic, gas and hydraulic power tool vibration. Protects from harmful vibration to the hand and arm associated with power tool use and bench grinding applications.
Developed in collaboration with a leading aircraft manufacturer for specific dexterity needs of riveters. What this means to workers using impact-type tools on a daily basis is superior protection from injury in a variety of applications. In contact-stress applications, Gelpact offers a new level of comfort for personnel facing extended periods of surface contact, such as keyboard users, warehouse workers and glass or lumber handlers. Tradewinds™ 100% open cell breathable neoprene construction allows for snug, secure fit without excessive heat buildup.
Molded hard-shell polymer knuckle cage helps protect vulnerable top of the hand from impact, cut and abrasion injuries.
Gelpact® palm padding features clinically-proven shock and impact force reduction over sensitive areas of the palm. GripStrip handle wrap features textured gripping surface and a full length Gelpact (TM) pad.
Ideal daytime support for person who successfully wears the Decade Splint Wrist Brace while sleeping. Spiral stays encourage neutral position while special elastic conforms to the wrist for a secure fit. Spiral stays under wrist encourage neutral position, while special elastic conforms support to wrist.
Dual tension support stays above the wrist give broader area of compression, greater restriction of wrist movement. Constructed of Tradewinds™ open-cell, breathable neoprene for superior comfort in warm weather or under clothing. Designed for constant or chronic wrist problems, particularly for those who describe their problem as Carpal Tunnel Syndrome. Gentle ambidextrous support with full-fashion shaping and thumbhole to maintain correct position over back of hand and half palm.
Adjustable moderate support, keeps wrist in neutral position, for sprains, strains, minor complaints.
Constructed of BGS exclusive Tradewinds™ open-cell neoprene, which breathes and stays comfy in hot, humid weather or under clothing. 2" wide adjustable strap compresses below the elbow, allowing healing while continuing to work. Seamless, non-irritating circular knit and no-bunch contour fit provide comfortable, gentle support.

Sometimes, the contractor who dared to do the risky piling job close to buildings or historical facilities was sued and obliged to pay a huge amount of money for compensation. Several groups of Japanese innovative engineers challenged to invent the epoch-making piling machine which could drive and extract sheet piles virtually without noise & vibration. The Main Body contains a heavy-duty hydraulic cylinder which enables the machine to chuck firmly the sheet pile to drive or extract and to grasp with legs the installed piles to hold the machine.
If required, our experienced technical staff will visit you for technical services such as set-up & technical training when the machine is delivered.
Pile Driving Rigs are equipped with the earth auger and the hydraulic hammer or pressing unit. They are high frequency, eccentric or piston, variable moment vibrators which can comply with the noise & vibration regulations applied for urban piling jobs in Japan. Vibro Unit does not vibrate itself until the frequency reaches the specified level. OPERATION(VARIABLE): During operation, eccentric pendulums can be freely adjusted from zero to max at any time ( illustration – right ). These web pages have been designed to provide you with educational information pertaining to repetitive strain, vibration and shock impact protection. The plain fact is that no approach to reducing back injury, thus far, that did not include use of back supports, has shown significant success in reducing this cost.Back belts have been recognized as personal protective equipment (PPE) by OSHA.
Click here to read Chase President Gary Shumate's comments on the overturning of the OSHA standard. One study has shown that, during such events, the strong back muscles can over-contract by as much as 70%.
Vibration reducing Decade brand gloves with Gelfom have been tested and certified in Europe to meet strict standards set there for worker protection. Long-haul drivers, heavy equipment operators or persons driving various utility vehicles also risk developing these disorders. As the use of vibrating equipment has increased in recent years, so has the incidence of various HAVS disorders. The EN ISO 10819 standard details the testing methods to be used ad the results that must be achieved by a glove claiming anti-vibration properties. Full fingered glove meets EN ISO 10819 anti-vibration glove standard, also marked CE DK-0200-C.352. Wrist support styles are preferred for heavier tool use or if sprains or carpal tunnel syndrome are present. Independent lab testing by Ingemansson Technology AB -- Europe's leading consultants in acoustics, noise and vibration -- verifies the superior performance of this versatile material. Chart 1 reveals the superior force-reducing capabilities of Gelpact when 'excited' by a sharp blow, such as in hammer use.
Two piece ambidextrous wrist support has removable 4" wraparound strap to allow placement of an immobilizing pad on the front or back of the wrist.
If you do not read Chapter 2 thoroughly before you read this chapter, you probably will not be able to properly diagnose your machine!!!!5-1 BASIC OPERATIONThe old-style GE design uses a single-speed reversing motor, which is belted to the transmission. It is not necessary to hold the machine by a crane once the machine has been set on the piles. Pile Driving Rigs drill a hole with minimal noise without causing vibration for installation of various types of piles such as PC piles, pipes, H-beams, sheet piles, etc.
This type of vibrator reduces the driving impact considerably compared to conventional vibro hammers. Our business, our games, our technology, and we as competitive gamers have won prestigious awards and received worldwide press. In addition, the Iowa studies documented less fatigue in subjects wearing the Accupressure back support. Our full-finger gloves are all CE-marked as meeting the European AV glove standard EN ISO 10819.
Vibration exposure can result in circulatory and nerve damagge that is painful and long-lasting. When sponge or foam materials were incorporated in gloves, they proved to be inefficient at damping vibration.
This new multi-part vibration-reducing pad was tested extensively in an independent European testing lab enabling it to be EC-certified for its unique ability to reduce harmful vibration frequencies to levels specified in the ISO standard.
Protects workers using pistol grip tools in confined spaces or when surrounded by hard surfaces.
With only 45% of the impact force reaching the hands, the worker can feel the effect of using a Gelpact-equipped glove liner. When viewed from the top, the motor turns clockwise for the agitation cycle, and counterclockwise for the spin cycle (Figure GE-1.)A simple centrifugal clutch prevents the motor from taking heavy shock loads when starting.
At the start of the piling, the Reaction Stand is used for the base to hold the machine to drive the first three or four piles.
Pile Driving Rigs are especially suitable for the jobs under tough ground conditions where conventional piling machines are difficult to operate. Various types of earth augers are available for specific applications such as piling, pre-boring, excavation, etc. It generates virtually no vibration to the machine during starting as well as after completion of sheet pile installation ("zero vibration"). The shoulder straps should not be so loose that they hang away from the body and possibly be tangled in equipment. The development of HAVS may be gradual or a person may begin to feel tingling or numbness of the fingers within a few weeks.
Visco-elastic materials perform better but are still shown to be relatively inefficient in testing--in some cases even amplifying vibration through human resonance. The difference that workers do not feel is demonstrated in Chart 2, where Gelpact dramatically reduces the transmissibility of forces at higher frequencies. Environmentally-friendly Pile Driving Rigs can also work for the cement milk injection jobs.
Vibration automatically increases only when the pile has been started to be driven under ground, which minimizes the vibration created to surroundings.
Our games have ranked from #1 in Canada to #1 in Japan, have become #1 best sellers in multiple countries, have won game contests, and have held 3 of the top 5 rated spots in Japan of all Xbox LIVE indie games. Pile Driving Rigs are a versatile, multi-functional piling equipments not only to solve the problems of noise & vibration but also to perform a lot of jobs of different applications most efficiently.
And we, the developers, have placed #1 in competitive gaming competitions -- relating to the games we make. There is less chance of chipping or scratching the finish.2) Inside the lid, on the top right side, is the recirculation nozzle. There is a small inspection hole (figure GE-4) in the pump body that weeps water when the pump's internal seal is leaking. You may not see any water directly, but you will see its tracks leading down the pump body.

See section 5-4 on pumps. 2) These washers are quite different from others in that the tub is attached to the cabinet, rather than the transmission.
Consider that a standard 4” wall is capable of stopping approximately 25 to 33 decibels of noise at the speech and music frequencies. A staggered-stud wall uses essentially the same materials, but is capable of stopping up to 42 decibels of noise.
It can develop leaks, or even shake loose, causing a MASSIVE leak (during the fill cycle, the water dumps straight onto the floor instead of filling the tub). Usually such holes will appear around the top of the tub.If you have holes worn in the tub, you can sometimes patch them with an epoxy patch kit, available at your appliance parts dealer. It may prove to be a temporary repair, but you can always do it again, and it's cheaper than trashing the washer. As of this writing, it is not yet widely available, but ask your dealer or call 800-936-5282. 4) The tub fittings may leak.
If you detect a leak from the tub drain or other tub fitting, remove the basket as described in section 5-6. 5) You may get a calcium or detergent buildup around the fill or recirculation nozzle. Replace it as described in section 5-4. If the machine is not pumping out water because the coupling has come off the pump, check the pump for jamming. Therefore, a locked transmission will not stop the motor from turning, but a locked pump will. 1) If NOTHING on the machine works, and it's not even making any noise, check the power supply. In others, only the spin cycle is interlocked, and the machine will still fill and agitate with the lid raised.
Check as described in section 2-5(a) and tighten or replace as described in section 5-10.3) Often a sock or something has jammed in the pump.
You will also hear the motor trying to start, then tripping off by the motor overload switch, because it is being stalled by the pump.
An additional confirmation of this diagnosis is that if you look at the pump coupling while the motor is trying to start, it will be twisted tightly. See section 5-4. 4) If the transmission pulley is turning, but either agitate or spin or both are not working, the transmission is bad. Replace as described in section 5-13. If the pump is turning, but the transmission drive pulley is not turning, stop the washer and disconnect power.
If the transmission pulley will not turn in one or both directions, the transmission needs to be replaced. See section 5-13.If the transmission pulley turns fairly easily by hand, but the clutch drum is turning slowly or not at all under motor power, the clutch may be bad. Usually you will hear the motor buzzing as it tries to start, then dropping out on the overload.
Check as described in section 5-12. 6) If the washer spins but does not agitate, check the agitator splines.
Section 5-5. 7) If you have a two-speed machine and the slow (gentle) speed is not working, the clutch solenoid may not be working. See section 5-11. If the machine makes a squeaking noise, especially during the spin cycle, the snubbers are probably worn out.
This is especially true if the machine has difficulty balancing during spin, even after you redistribute the clothes. Replace the snubber blocks as described in section 5-14.5-4 PUMP AND PUMP COUPLINGA vast majority of GE-built washers use the pump shown in figure GE-4. Disconnect the pump coupling at the TOP end, then the remove the three pump mounting screws. Then cut out the little piece of plastic in the center of the hub with a knife; this will expose the top of the agitator shaft. There are locking tabs that you must twist to remove the larger agitator from the smaller one. Once the screw is removed, the "handwash" agitator should lift out easily.
If you need to remove it, it is simply clamped to the transmission top and to a lip on the tub by two big round clamps. If it has simply shaken loose and not torn, you can just clamp the old one back in place, but you'd better check the snubber blocks as described in section 5-14 to try to find out why it shook loose in the first place. If the timer dial prevents you from removing the timer, pull off the spring clip from behind the timer knob as shown in figure GE-10. The other design is known as a "clamshell" timer because of the curved shape of its plastic housing.
If your timer is defective, take it to your parts dealer and ask for a rebuilt.5-8 LID SWITCHThe lid switch is located beneath the cabinet top, towards the right rear of the washer. Test with an ohmmeter and replace if defective.5-9 WATER LEVEL SWITCHThe water level switch is located beneath the console. GE washers used several different wiring schemes, so refer to section 2-6(b) and compare with figure GE-11 to determine which terminals to test. If it has no continuity, replace by removing the screw on the underside of the coil. I do not recommend the novice trying to rebuild a two-speed clutch. To service the single-speed clutch, first remove power from the washer and remove the back panel. If you're not sure if the shoes can be re-used, ask your appliance parts dealer, or simply replace them.
As you look at the back of the machine, you will find the relay towards the upper left side of the machine. You should now see good continuity. If you do not get the above readings, replace the relay.
Slide the transmission towards the right rear of the washer, and reach under the transmission to make sure the drive belt has disengaged from it.
Rebuilt GE transmissions are a standard item at most parts stores, and they are not terribly expensive.
Locate the right rear bolt loosely in its hole, then the left front bolt, then the other four. Install the boot, basket, and agitator.
As a final step, remove the back from the washer and make sure the belt is seated properly.5-14 SNUBBER BLOCKSThere are eight friction pads, commonly known as snubber blocks, which help to prevent vibration during the spin cycle.
There is a small inspection hole (figure GE-4) in the pump body that weeps water when the pump's internal seal is leaking.
It may prove to be a temporary repair, but you can always do it again, and it's cheaper than trashing the washer. If it has simply shaken loose and not torn, you can just clamp the old one back in place, but you'd better check the snubber blocks as described in section 5-14 to try to find out why it shook loose in the first place.
If you're not sure if the shoes can be re-used, ask your appliance parts dealer, or simply replace them.

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