I was wondering if anyone knew how magnetic cycles worked and how the motor is usually controlled, if any one has experience with these kinds of bikes? I could be wrong there though, as it might have a very-large-turn-count coil that is capable of producing a big H-field with simple PWM control from low voltage. It also analyzed reviews to verify trustworthiness. If I should purchase one can any replacement of eBay work or could I face compatibility issues? With magnetic resistance its just a matter of having gears that are used on the bike to adjust how the magnets are interacting with the flywheel and with direct contact flywheel set ups, its about the contact pads moving. Then find the information in product description. Black and white voltage is 0. Im about to break off a couple of magnets, lowest position on my elliptical is hard as gods might. looking for plastic arms that holds the magnets to the resistance control motor for nordictrack elliptical audiostrider 990. NP, IF and TSS are trademarks of Peaksware, LLC and are used with permission. There are two designs of magnetic resistance that are currently used by our machines: C-Brackets, and Eddy Mechanisms. Hey. Note, this high-quality resistance motor is sold as an individual item. i was just curious how these things work. There is a grinding sound from what I think is the resistance motor on my tour de France bike when it is not being used. I have the same problem with mine but we cant find the part. Twist the pulley to the side and slip the V-belt off the pulley and the magnetic unit. Do you know if this means its broken? The motor would not buzz or move at all. Reattach the pedal cranks by rotating them clockwise as you thread them into the pulley from each side. This design uses a C-shaped magnet bracket that is contoured to the shape of the flywheel. Be very careful if voltages on resistance motor are not as described in this video. !Watch My Videos, Subscribe, Share!Become a Patron! It is a JMC-4105. Since the bike apps do the calculations, almost no coding is necessary. So, something is happening under load with the position sensor. No comment on how often the bike is used.lol. Repair Instructions: Submitted by Customers Like You, NTEVSR819100 Freestrider 35 Si Elliptical, NTEX41960 (R400) Audiorider Exercise Bike, NTEX41961 (R400) Audiorider Exercise Bike, NTEL71318.2 Freestride Trainer Fs7i Elliptical, NTEL71318.4 Freestride Trainer Fs7i Elliptical, PFEX019123 Proform Le Tour De France Bike, PFEX019122 Proform Le Tour De France Bike, PFEX019120 Proform Le Tour De France Bike, PFEX013123 Proform Le Tour De France Bike, GGEL68008.0 Maxx Crosstrainer 880 Elliptical, GGEL68108.0 Maxx Stridetrainer 880 Elliptical, GGEL66008.0 Maxx Stridetrainer 680 Elliptical. If the unit is battery powered, begin by replacing the batteries in the display panel and re-test the bike. Only when under load does the system not function properly. Hello Tony and thanks for writing. Kinetic fluid trainers have a heavyweight 6.25 pound flywheel for a more realistic ride. After moving house (7 years ago), I've now lost the controller for my exercise bike. 3. But, When you faced exercise bike problems and it needs to repair a little, you may need to go to the repair shop.. And it is a hassle in our busy daily schedule.we ended up with left over parts of an exercise bike after a garage sale. Now I know what the problem is just need to figure out how to fix it. Locate the speed sensor unit near the pedal sprocket. My questions is, what signal(s) do I need to send to which cables to control the resistance? Three for the position pot (1k?) Do I need to replace the motor? I need to build one. what kind of attitude is that? A pict of the inside will really help. Nadda one broken and runs like a top. Powered by 6 volts D cell (1.5 X 4) DC but even a if wired correctly usually yellow and blue power this, a 9Volt battery will work. Remove the cap from the battery pack with a screwdriver. Any suggestions its a New Balance Recumbent Bike?Thank you. the console on the bike does not work, but all I want it to do is increase/decrease the resistanceam I able to do so without the console working (if so, I have to purchase another resistance motor?). When this is done, tighten the jam nuts to secure the bracket in this position, and then reattach the side shields. I had ridden it vigorously for about a year and a half every day (about 1 hour and thirty minutes everyday). This follows the principles of Lenzs law and faradays law. Easy! I dont know how to fix it. If a pronounced indentation and/or discoloration are present, the magnet strength should be reduced. I cant find any source for the gear or gear box. Access to manuals and parts right there makes it convenient.". While this was mildly interesting on its own, if it had been done more methodically and with more attention to what the electronics/gears did, it would have been more useful. With our Fix app, you always have a personalized repair guide on-hand. Place a correction magnet vertically under the compass so as to eliminate only the deviation induced by heeling; reverse the ends of the magnet if necessary. Im trying to replace the tension motor on my Proform 325 CSX but I cant loosen the wire connected to the old one so I cant disconnect it. I don't think so, the rotating disk isn't full of magnets, that would be Ive tried 4 resistance motors and all have the same effect. ), Public Policy, Planning, And Development @ University of Southern California, Your email address will not be published. Is it just a cheap elliptical and they couldnt be bothered to put in an adjustment turnbuckle like I see in all these videos? I was going to do that tomorrow when I have time to crack it open, just wondering if we had anyone experienced with these units on the forums first. This is a professionally-built product!? Inspect the belt for damage and replace if necessary. Replace the batteries and reattach the cap to the unit. Hi, thanks a lot for answering my questions. Hope this helps. In most cases, if the resistance is just off, there is usually something wrong with the belt. We do carry a lot of other spare parts for units such as yours, for example, Part Number: 104838. I buy lots of pre-owned fitness equipment and BY FAR the number 1 issue I find is that the resistance motor is perfectly fine but the console no longer sends a signal to the resistance motor even though the console beeps as you change resistance levels and otherwise acts as if everything is perfect, there is no voltage being passed to the motor. It reads the full voltage regardless of where the tensioner is. Read more: The Best Indoor Cycling Bikes for Every Budget. Im confused, what is the correct sequence? Initially, I'd be happy with a simple knob on the handlebars to adjust resistance. Screwdriver, Pliers, Wrench Set, Nutdriver, Adjustable Wrench. Would I need to replace the whole flywheelThe belt is easy to take off and put on, I did my car Serpentine belt a while ago its the same thing, the grooves go on the pulley grooved the un-grooved side goes on smooth part of pulley, easy, Thanks for video was super informative Ive recently got hold of an old exersize bike and the resistance is not working at all. A screwdriver will be needed to perform this repair. and two for the motor. Magnetic trainer performance is affected by heat, which causes resistance to decrease. I recently purchaseda spin bike for my fiancee so she can continue to workout at home. A magnetic field is used to create the resistance the bikes needs. Hi, I have a Bodybreak 828 recumbent bike. I took all my York c101 magnetic bike apart, got belt/flywheel off.The problem (although I can live with it) is the belt pulley on the flywheel makes cranking noise when it goes in reverse (not drive forward motion) its an annoying sound. The tension motor are enclosed in a plastic gear box and most have 5 leads. I have that bit working, and even controlled by both a microcontroller and a pair of override buttons. Replace the nut that secures the pulley. I watched and took note of your plug replacement on the 5.4, Did the same shit you did. Use a socket and ratchet to remove the nut on the pulley. I have a similar bike. Along with uniform, reliable resistance, you get quiet operation for listening to music or audio books. Removed internal bike covers on both sides of my pro form tour lefrance. After destroying my first replacement resistance motor, I traced the problem to the control panel. The strength of the magnetic field determines the resistance to pedaling. Hello Mustafa, Thank you for contacting us. For example, any info about what model of bike it was might have helped someone! Thanks to your video, I think I know what is wrong. With the bike on a stand, there should be a small bit of resistance to turn the bars in each direction. Reattach the flywheel covers. Thanks for making that video either way! This is a genuine manufacturer-sourced component which is designed for NordicTrack, ProForm and Freemotion exercise equipment. It is useless to me the way it is. I know you cant really make a great guess without pictures or anything, but what do you think? The motor works and the tension cable moves with magnet, so i cant really think of whats the problem. Alter the size of the magnetic weight and repeat the procedure until there is no tendency for the wheel to rotate on its own whatever its position. Cool video, I had no idea they would use shitty plastic gears in those things. set that hinges over it with some positioning servo or actuactor to vary When you decrease the pedal resistance, the magnets move farther from the flywheel, making it easier to pedal. Only time it changes is when the motor is actually running, and of course the voltage drops. Used on more expensive uprights and recumbents, it is favored by users because it is extremely quiet, in fact, nearly silent. Is there a fix or hack to bypass the issue? Does anyone know where to get the replacement Servo Motor for a SCHWINN 120 upright bike (same as in the video)? Education: Bachelor of Science (B.S. Agree you need to disassemble it, if only to figure the pinout. Become a Patron! Later I'd like to get an arduino or raspberry Pi controlling it and reporting on the speed, distance, pulse, etc. But I advise tying the cadence sensor very tightly to the crank arm, not your shoe. It is a good ideal to unplug these bikes after use every time, Screwdriver, Socket set, Wrench Set, 3/8 and 1/4 drive ratchets, Resistance motor failed. Thanks for the teardown! A pict of the inside will really help. Was that velcro in the video something that will be inside of my elliptical as well, or did you supply that yourself? The company who manufactured our exercise bike is no longer in business making them. Cleaned all areas exposed by the panel removal. Does that come with the arms? I couldnt return the unit so i decided to build my own basic console, just so I can control the resistance on the bike to make it usable. Three for the position pot (1k?) Installing the part was a piece of cake. But sometimes, when I switch it on and try to change the resistance level. Screws hard to find if not for the video. my Eliptical e5.7 is powered but the resistance doesn't work. I by that I mean that between the Resistance 1 and 20, the wheel doesnt turn more than 1/6 of turn. I dont have a turn-the-thread thing to adjust, I have a plastic arm that goes from the motor to the back of the magnet and it doesnt appear to be adjustable:( Only possible tiny adjustment I can see is where the motor screws to the machine it is slotted so there is a small amount of adjustment, but not much. Its like it's trying to engage. Eddy Mechanisms are similar to C-Bracket designs. Everything i researched indicated, it was the tension motor, however, the new one made no change. Watch My Videos, Subscribe, Share! Maybe someone can give me a hand. Ways you can help this channel grow!! Receive money-saving advice and special discounts! Owning an activity tool like the treadmill or elliptical bike is presumably a standout among the most stunning, adaptable, and functional things you will ever claim. To reset the bike to its lowest setting I have to disassemble the motorized tensioner and manually turn the senor back to its lowest setting corresponding to the lowest setting on the panel. So if the company cant find a proper welder to do that part, how much knowledge (of anything) do the rest of the people have who built the rest of it? Signals come from control panel and if wrong will destroy resistance motor. Best regards. I contacted the company and got a new one, then installed it i. I think I could at least try. I truly admire the fact that you took the time to answer everyone who had a question! Thanks. Great video. What if the voltage on the potentiometer voltages are not as described? How do I get those arms if not? These really gave me tons if ideas. Position the flywheel covers on each side of the flywheel. I have the same identical problem, however I am not able to find who or where to order the part from. I have attached a photo of the motor assembly. When I reassemble it again, I can increase the resistance via the panel but there it remains no matter the increased setting I leave it at. Regards, Hi, by any chance do you know the thread size at the end of the knob that you pushed? Needed the extra detail on the contact info for that particular brand. Hello! Make Offer Home Recumbent Exercise Bike Magnetic 8-Level Resistance w/Bluetooth Stationary NordicTrack Commercial S22i Studio Cycle Exercise Bike Touch Screen $2,499.99.Exercise bikes offer a low-impact cardiovascular workout. This is exactly what i been searching all of youtube to see i dont understand why this video got soo many down votes. Use a hex wrench to remove the nut that holds the sensor in place. The panel will increase the resistance but not decrease it. Please try again. Couple of parts worn out, had to do some welding, tap and die, etc. Screwdriver, Socket set, Wrench Set, crank arm puller, Pro Form exercise bike resistance could not be set. Magnetic Eddy Current Braking Diagram.Today, whether in gyms or home, most exercise bikes employ some form of magnetic resistance. Remove the battery cover, install a new battery and replace the cap. Does this mean something in panel is bad? Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. I press resistance up button or press a discrete resistance level number button and the motor rotates to that position, and Im reading 4.7 volts across the blue and yellow wires. So with my Norditrack GX 2.5 bike, it appears the magnets are always engaged. There is a tension disc that is listed as a replacement part. Just to be clear, magnetic resistance is the result of a magnet in the presence of a moving conductor (aluminum wheel) that creates an eddy current. Just now, when I stop pedaling the flywheel does not stop immediately, but continues rolling and it stops slowly. This creates what are called Eddy Currents, which cause drag on the metal disk. Hi, the bike uses an EDDY CURRENT retarder, bigger versions are used on car and engine dynomometers, you feed the coil on the retarder with AC or possibly PWM to induce eddy currents in the aluminum disk. I have taken the case off and turned it on and found that the resistance motor does not turn when the resistance is changed. At 6.25 lbs. Can you help me? Remove the chain guard using an Allen wrench or Phillips screwdriver to loosen the bolts that secure the guard in place. 2. How do you verify this? The bikes I've worked on have the moving-magnets arrangement that produces variable eddy-current drag in a conductive disc, as per MarkT's post. Please check compatibility options in the description. This part is compatible with the following machines: This item works with the following types of products: And we make it easy! To calculate the overall star rating and percentage breakdown by star, we dont use a simple average. You would just need the ability to send the data from existing sensors. That would be my dream bike! Chain drive recumbent exercise bikes have sensors on the flywheel and pedal cranks that generate magnetic poles. I am looking for solutions to fix it on my own its already beyond its warranty service. All exercise bikes offer varying levels of pedal tension.Spinner bikes are an example of a bike that uses a brake pad against a weighted flywheel to increase resistance. "Love the flexibility of the app to add everything in the home and garage. Before we can provide you with information on the plastic arms, we will need the model number from your elliptical. what would be my next step of trouble shooting? This is what 700 bucks gets you in America these days, plastic gears. i read somewhere that the knob on these bikes is to increase /decrease the electricity to the magnet as you pedal to make the magnet stronger/weaker. Good job repairing your exercise bike, identifying and demonstrating the root cause. In the mechanical maintenance field as well. Thank you for your question. If you have questions while troubleshooting your upright bike, contact customer service as indicated in your user's manual. yeah, i have a Body BREAK broken piece of Offal SHIT. But if I had to guess on how it works would be a 6 Vdc tension motor that pulls some magnets closer to a copper clad flywheel. I do not know what kind of signal (PWM or straight DC) and the voltage/current required. If the leads are intact and not burned, it's not necessary to replace the unit. I am a personal trainer, author, and contributor to lots of different lifting and fitness magazines. Model way old, couldnt find any info on it. Please do not hesitate to contact us again if you need any additional help. I had to make a cut through one piece to assist with disassembly. Thanks for your very informative posts everyone! Awesome content. $269.99 $ 269. The parts ordered and received fit perfectly. It is generated through an electric circuit, pedaling action, flywheel, and a wheel gearbox.Today, whether in gyms or home, most exercise bikes employ some form of magnetic resistance. Our Magnetic trainer uses an aluminum disk spinning between two magnets with smaller fan blades integrated into the disk. However, we need your model number and the brand name to locate any information on this. And put speed, cadence,* and power sensors that would upload the data to Map My Ride or any such cycling app. My boy put the LifeGear recum bike in the trash pile. Im electing to put in a rocker switch and limit switches to manually control resistance. Im at a loss. Tested before reassembly. Most upright exercise bikes have a magnetic unit that interacts with the metallic surface on the flywheel to provide the positive and negative poles. However, we realise that the resistance is not working as per normal and that it will only sort of take effect and gain resistance after we turn the knob 90%. I love this Elliptical.>>> t.co/eohSfG24FU I never thought using the fan would be for me, but it is wonderful. The motor is just a plain DC motor. I have a New Balance 6100. jgum: OVICX Stationary Spin Bike with Magnetic Resistance Exercise Bikes Indoor Cycling Bike Fully Adjustable Comfortable Seat and Handlebar for Home Cardio Workout. Thanks serial # 01183. Learn more at www.trainingpeaks.com. i have a similar proyect, i hve to output the values the bycicle to a pc for using them later can someone help me with this? Takes D batteries. Unable to add item to List. It has a 10 wire rainbow cable going to the control panel that leads into the bike. I am not rich, Im $999,999 from being a millionaire. Inspect the insulated wire leads at the connection on the unit. Buy one you will not regret it. Otherwise straightforward replacement of part. We recommend you contact the manufacturer of the part to see if they have recently released a new substitute. i did the fat burner 30-minute program for THE FIRST FUCKING TIME, and on the last block, right at the end, BANG. 1. By the time there is a change in the resistance, it gets too difficult for anyone to continue riding. Refer to the appropriate diagrams for your model to ensure the correct replacement procedure. Sign up with your email address to receive news and updates. Hope this helps. Your email address will not be published. You would have to replace the entire clutch # 266824. I got all flywheel off but just couldnt see how the actual belt pulley comes off the flywheel or does it all just come as 1 part? I have a different exercise bike its wheel is infront but due to lockdown I am not able to find its front tension belt now how can i use the bike pls reply. Awesome durability. You are welcome and we were happy to help you. Ask our experts a question about this part and we will respond as soon as we can. We would be happy to do some research to find you the correct parts. There is another motor directly next to the first with just a + and - lead. I also have almost the same issue with my Exercise Bike. I have a body champ magnetic recumbent bike brb5200. So thats whats not working on my bike. All Right Reserved. Cleaned bearing shafts and put in a dab of grease while I had the chance. To create magnetic resistance, two magnets set on each side of the flywheel. Id love to pick up a recumbent stationary bike cheap and make a recumbent spin bike out of it, with a snazzy, shining, visible front spin wheel. However, we need your model number and the brand name to locate any information on this. Hi Dennis, Interestingly, I can then disconnect the motor from the console harness and even a single AA battery will operate the motor and pull the brake magnets through the full range of motion. The magnetic resistance mechanism is at the heart of the stationary bike models. I've opened it up and as you describe, I have one motor/servo which has 3 wires and appears to be attached to a cable which pulls the magnets closer to the wheel. The flywheel on a trainer simulates the momentum of the bike and rider, increasing the effort needed to accelerate and maintaining speed when coasting. Remove the flywheel covers. SPORTEC SS-20770 Exercise Bike Disassembly.You can help me to support my projects:On PATREON: https://www.patreon.com/2013ElectronicsComputers.Bitcoin Wallet: 14AvQMLkvFvG3tnkpLnn328xsfxp3udH8R.Web Money: WMZ Z290955088799, Video taken from the channel: 2013Electronics&Computers. It provides various levels of resistance that can easily be adjusted with the push of a button. The Potentiometer (which I originally thought was a digital motor or servo) gets turned by the motor/gearbox. Magnetic Brake. i cant tell you how infuriating this is this thing was NOT inexpensive. This design can be calibrated by setting the resistance to its maximum setting, then removing the side shields from the unit and loosening the jam nuts at the end of the tension cable. For digital resistance, an electronic signal controls the magnets. I cant find anything on this bike as it is a cheap chinese product. You can also use heart rate straps and a foot pod power meter. Refer to your user's manual for specific troubleshooting tips if your recumbent magnetic exercise bike isn't working. Every time the unit is powered up the blue wire has 6 volts. Thank you all!! Thanks for voting and helping fellow customers! The motor is brand new and winds and unwinds no problem, but the cable does not respond, other than unwinding from the motor. The plastic gears inside the resistance servo broke so the bike would not change resistance. The wire harness is Bl/Y/R/W/B, and on the motor plug it is Y/Bl/B/W/R. My Exercise bike is acting weird today and I need to skip my workout. Its fuckin beer time. Thanks man. I cannot say ALL resistance motors are the same, however, from what Ive been looking at (and Ive been looking closely for days) quite a few of these resistance motors are the same. Is this case where two wrongs make a right? We are watching And thanks for the tutitorial And I quote. I pick it up, got everything working except the heart pace monitor. Our magnetic drive system uses two sets of powerful magnets on either side of a separating wall, so there are no moving parts entering the fluid chamber. This is the bit I'm now struggling with as I can't get a meaningful reading from the Pot. The Mags linear progressive resistance curve (black line) offers a higher mid-range resistance than our fluid trainer models, (0 mph 32 mph) making it a great match for low-geared bikes like mountain and cross bikes.