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Posted on Feb 18, 2011

My Father has a schwinn Airdyne. the pedal was loose, I bought a new piece that fits through the pedal, replaced it but it is still loose. I think the medal in the crank wheel is worn...... Because the bike is heavy we would need a repair person to come out and fix it. Who do we call?

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  • Contributor 16 Answers
  • Posted on Jun 06, 2011
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There is a metal shim needed in the bike/pedal that has to be tapped in to keep the pedal tight. If you dad has used the bike for several hundred miles and/or his feet might actually bend the pedals over time (weight), it is possible the metal piece that the pedal attaches to could become bent slightly, and I have seen a few bikes, that need to be taken to the bike repair store (call a large bicycle/itness store) that has a good repair shop and they often can repair these, but rarely less than $125 for an Airdyne repair/tuneup.

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How to replace a chain with master link on a Schwinn Airdyne

Airdyne Chain Replacement with Master link

This video will demonstrate how to replace the chain with master link on a Schwinn Airdyne.
  • First remove the cotter pin and clevis pin from the user's right handlebar. Then lower the connecting arm and handlebar.
Caution: be sure to hold the handlebar as it will come loose after removal of the above parts.
  • Remove the connecting arm and pedal and crank arm by removing the wedge pin. To simplify this process loosen the nut and tap on it with a small hammer until the pin is loosened.
  • Remove the nut, wedge pin, crank arm and connecting arm.
  • Next remove the chain guard; there are three screws attaching it as shown in the video.
  • Remove the chain by locating the master link. Remove the lock pin and the cover, and then disconnect the chain.
  • Place the new chain on the sprockets as shown in the video.
  • Install the master link, cover and lock.
  • Re-install the chain guard and attaching screws.
  • Re-assemble the connecting arm to the handlebar and eccentric.
  • Be sure the brass bushing is installed in the front inner side of the connecting arm before installing the clevis pin and cotter pin.
  • Install the crank arm with pedal.
Be sure when completing this step that the crank arm is installed in the opposite position as the users left side crank arm.
  • Install the nut onto the wedge pin and tighten.
  • This completes the procedure.
Replacing Schwinn Airdyne Chain with Master Link
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User Guide/Manual for Schwinn Airdyne AD3

Schwinn Fitness has many of their manuals here: http://www.schwinnfitness.com/schwinn_fitness_us/customerservice/manualsen.jsp . The direct link to the owner's manual for all Airdyne exercise bikes is available here: http://download.nautilus.com/supportdocs/OM/Schwinn/SCH_Airdyne_Evolution_OM_web.pdf . If you need the assembly directions, see the Airdyne AD4 guide: http://download.nautilus.com/supportdocs/AM/Schwinn/SCH.Airdyne.AD4.AM.EN.pdf . The AD3 and AD4 are very similar.

I hope this helps.

Cindy Wells
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Squeaking belt on airdyne bike

I love my Schwinn Evo Comp AirDyne. After 2 years it suddenly developed a bad squeak and about .5" of increased play in the pedals (ie the pedal could rotate back and forth about .5" before turning the fan). Both these symptoms were caused by a broken spring in the chain tensioner. (Schwinn pn 13000371. See part 80 in blowup 5 of http://www.fitnessrepairparts.com/diagram/114 ~$9).
To replace this:
  1. disconnect the right hand (as you sit on it) connecting arm (ie the piece that connects the pedal to the big handle) from the lever arm (ie the big handle you pull back and forth) by removing the connecting bolt with an Allen head wrench and an adjustable wrench. Note the order of the three internal washers as you remove the connecting bolt. Rotate the connecting arm towards the back of the bike to get it out of the way.
  2. remove the four phillips head bolts that hold down large right hand plastic cover. With the connecting arm out of the way this cover can be pulled far enough out to gain access to the chain tensioner.
  3. remove the broken spring and replace it. I fashioned a similar spring with less tension which seems to work as a kluge. The original spring broke at the outermost loop, so I might have been able to reuse it by just bending down another loop.
  4. could lube the chain while you are in there, but you can also lube it anytime from the other side
  5. put it all back together
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I Need Console for 1988 Airdyne

The age of the machine is not as big of a replacement parts hinder as is Schwinn going through so many buy outs since 1988.

One of the best exercise repair parts on online is FitnessRepairParts.com. They have consoles which are similar to your generation of machine for 170.00 - 240.00

Otherwise schwinn was most recently owned by Nautilus/Bowflex/LAMAR fitness and they may be able to help through their website.

Sorry, I don't have a great source of imformation to help with. I repair Schwinn exercise and it has become very hard to find parts recently as the new generation of AEROdynes are very different. Although, up until maybe 1-2 years ago, nothing had changed for 30 years.

Alternatively, search craigslist and ebay. You may have to buy an entire unit to get the part you desire. Often they have a drive mechanism worn out which devalues them to the seller, but has minimal to do with your search.

Good Luck.
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Older schwinn airdyne manual

go to www.fitness.manualsonline.com or www.iconservice.com or www.retrevo.com

God bless you
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it may need to be calibrated. Call schwinn or Treadmill Doctor at 800-750-4766 to walk you thru the calibration.
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Error: tone when changing schwinn airdyne computer battery?

There could be a few reasons why you are hearing an error tone when replacing the batteries in your Schwinn Airdyne computer. Here are a few possibilities:
  1. The batteries may not be properly seated in the compartment. Make sure that the positive and negative terminals are facing the correct direction and that the batteries are fully seated in the compartment.
  2. The batteries may be dead or low on charge. If the batteries are old or have not been used for a long time, they may not have enough charge to power the computer. Try replacing the batteries with new ones to see if that resolves the issue.
  3. The computer may be damaged. If the error tone persists even after replacing the batteries with new ones, there may be an issue with the computer itself. In this case, it may be necessary to have the computer professionally repaired or replaced.
It's also worth noting that some models of the Schwinn Airdyne may have a "low battery" warning feature that sounds an alarm when the batteries are running low. In this case, the error tone may be a normal part of the bike's operation and not necessarily indicative of a problem.
I hope this information is helpful. Let me know if you have any further questions or need more assistance.
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Battery cover & battery type for ergometer older unit

The battery cover is no longer made since this bike was last built in the late 1980's. I would recommend giving the man a timer/watch. I do have one of these little black round batter covers, and would sell for $25. However, all it does is create a timer for the rider. He already can use the analog computer to see his mileage, load, and can re-set the lower mileage to zero every workout. All the battery cover will allow is for him to set a timer for how many minutes he wants to workout for. Or he can pust the start button to time his workout. (my email is [email protected])
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