Schwinn Airdyne Ad3 Parts Manual
So I recently scored an oldschool airdyne for $20. When I showed up the seller said the emails were overwhelming. The guy even helped me load it into my vehicle - it's a beast. Anyway, what he didn't mention in the ad, nor did I care for the price, was that the ergometer didn't work. This ergometer is like the one in this photo (half analog, half digital): The ergometer is non-responsive. When I pedal the analog dial doesn't move. So a couple questions before I open it: 1) Anyone know if the analog dial needs a battery to operate?
2) Is there a recommended parts website for these bikes/ergs? 3) When researching between the Airdyne and the Assault I had read that there were differences between how the erg calculated calories.
Jun 22, 2016 - Schwinn Airdyne AD3 Review – Should You Get The AD4 Instead? The Schwinn Airdyne AD3, the results that come up are a list of part supplies. And the AD4 was that the AD3 had an analog display console while the AD4.
I'm not too interested in buying the $300 replacement digital erg, but I would be interested in building my own. So is there any public info on calculating the calories? Thanks PS - that was $20 CDN. So yeah, $16USD. Hey Grape, if it were me I would connect a new bicycle computer to it. I did this with an old Tunturi Ergometer and it was great.
I recommend a Filzer from MEC. There's a model for $27 that has two speed pickups, one for crank RPM (this is what you should be most interested in). It won't give you same calculated watts, calories, or perceived effort level as the Airdyne computers, but the older bikes don't likely do that anyhow. Let me know if you need help with something like that. I believe we're in the same town.
So I recently scored an oldschool airdyne for $20. When I showed up the seller said the emails were overwhelming. The guy even helped me load it into my vehicle - it's a beast.
Anyway, what he didn't mention in the ad, nor did I care for the price, was that the ergometer didn't work. This ergometer is like the one in this photo (half analog, half digital): The ergometer is non-responsive. When I pedal the analog dial doesn't move.
So a couple questions before I open it: 1) Anyone know if the analog dial needs a battery to operate? 2) Is there a recommended parts website for these bikes/ergs? 3) When researching between the Airdyne and the Assault I had read that there were differences between how the erg calculated calories. I'm not too interested in buying the $300 replacement digital erg, but I would be interested in building my own.
So is there any public info on calculating the calories? Thanks PS - that was $20 CDN. So yeah, $16USD. I paid $20 US for mine.
You got me beat. 1) The analog speedometer is just an ordinary mechanical bicycle speedometer with a special faceplate. It has a square cable that connects the wheel to the speedometer. No electrical power required. 2) Check out these sites. They sell Schwinn Air-Dyne parts: Sports Smith Air Dyne parts National Gym Supply Air-Dyne parts Krislynn Cycling and Fitness: Parts and service, with videos Airdyne Main Frame Parts Airdyne Pedal Drive Parts Also check out ebay. There are many sellers of parts there.
As for the digital timer, I easily repaired mine. I disassembled the digital timer and cleaned the circuit traces under the buttons. Now the buttons work every time.
For power, I installed a pushbutton switch (not a momentary contact) in the battery hole (love my glue gun) and added a single cell battery holder to the bottom of the ergometer. Radio Shack parts for about $5. My timer does not shut off after a certain time, so I used a switch. But considering that it is a simple LCD timer, a single battery will probably keep the timer powered on for a year without a switch. So I recently scored an oldschool airdyne for $20. When I showed up the seller said the emails were overwhelming.
The guy even helped me load it into my vehicle - it's a beast. Anyway, what he didn't mention in the ad, nor did I care for the price, was that the ergometer didn't work. This ergometer is like the one in this photo (half analog, half digital): The ergometer is non-responsive.
When I pedal the analog dial doesn't move. So a couple questions before I open it: 1) Anyone know if the analog dial needs a battery to operate? 2) Is there a recommended parts website for these bikes/ergs? 3) When researching between the Airdyne and the Assault I had read that there were differences between how the erg calculated calories.
I'm not too interested in buying the $300 replacement digital erg, but I would be interested in building my own. So is there any public info on calculating the calories? Thanks PS - that was $20 CDN. So yeah, $16USD. How opportune!
Here is more info for troubleshooting your non-working speedometer. I have three AirDynes. I was getting one ready to sell one Craig's List and making sure I had all good parts on the two I am keeping. I swapped the good console to the one I am keeping and when I tested it, the speedometer was not working. The speedometer was working on both machines before the swap. After some fiddling I determined it was the speedo sending unit.
Schwinn Airdyne Computer Instructions
The plastic housing cracked and the worm drive was only intermittantly engaging. The first pic shows the speedometer sending unit on the fan axle with the speedo cable connected. The picture below shows the speedometer sending unit. The 25+ year old plastic cracked right clear through. The other sending unit had a similar crack. On the sender that worked there was a lot of resistance when spinning the hub compared to the sender that worked intermittantly. I was not able to find a source for these sending units.
When the one that I have finally stops working I may try clamping the sender housing to see if closing the crack will make it work better. The top part is a digital timer. The Up-Down arrow buttons adjust the time in minute increments. Third button is start and stop the timer. If the time is 0, time counts up. If the time is set to anything else the time counts down. The rightmost button is a reset.
It returns the display to 0:00. The instructions I've seen say the timer shuts off after a minute or two. Mine does not, but a battery should last a year or so with the LCD display on all the time. Regardless, I hot glued a pushbutton switch in the battery hole and wired a AA battery holder into the circuit. I hot glued the battery holder to the back of the console. I cleaned the circuit board so that the buttons make good contact because my buttons were intermittent. The analog speedometer shows:.
Schwinn Airdyne Manual Older Model
Load from.5 to 10 (some only go to 7). 1 load level = 50 watts, so 6 = 300 watts. Pedal RPM from 28 to 75 RPM in odd increments. Odometer. Trip odometer with rotary knob on back to reset Here is a sharper view of another speedometer (image grabbed from Google images): But if you want to throw all that away, a bike computer should work fine. You just need to remember that the load does not increase linearly with RPM. Picked up my dad's old Airdyne last week.
The speedometer sending unit is fine, but the cable is broken. Cable and sheath broke about an inch from the sending unit. Interestingly - if you pull the cable out of the sheath, it appears to be a tightly spiraled thin wire. The nearest I can describe would be like a damascus gun barrel. The area where it broke looks to be bunched up and I don't think it's grease. Now that I think about it, I will have to pull the sending unit off to make sure it is rotating smoothly because it looks like the cable was twisted until it broke. Anyway - anyone know where to get the replacement cable?
The krislynn site listed above offers a replacement cable but it is an electronic cable for the modern computers. Also - RestoringTally any chance you can post some pics of the wiring you did for the push switch?
Sounds like a great idea, heck the AA battery sounds like a better option than the button battery. Wonder if I can do that with my Concept II's PM1 as well. Here's a simpler and possibly more versatile solution: All that box does is incorporate a very old school timer and a direct-drive speedometer that actually has no relationship to real speed because there is no real wheel and no real gearing. So just get a Wahoo bluetooth cadence sensor and zip tie it to the crank. It transmits directly to a smartphone, iPad, computer, whatever, and gives you cadence, which is really all you're getting from the original speedo anyway. You can also get a bluetooth heart rate strap and have both cadence and heart rate transmitted to your smart phone to any of a variety of apps there. You can record your workout, monitor performance real-time, and get the same results you'd have with a heart rate monitor plus the Airdyne direct-drive speedo.
Cleveland, Check out W. They have dynamometer cables that do exactly what this does. For a few bucks, find if it's the cable or the dial that's broken. Or the pickup worm gear.
But the real answer to your question may be that Airdynes are old and very dated and for the most part pretty worn out. Except for a few weightlifters, most people who want something to do leg-spinning workouts go buy a used Monark ergo, a Lemond or CyclOps trainer, or something like the Wahoo Kickr. The Monark is much more solid than the Airdyne but you may still find yourself doing some repairs if it isn't in decent shape. Lots of ways in the end to get this kind of workout. Of all of them, I'd just put the Airdyne close to the bottom of the list. Better choices abound.