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Hello, I have a very old schwinn bike and I need to replace the pedal arms. How do I get them off?

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To remove 3 piece crank arms you will need a special tool called (fittingly) a crank puller. It threads into the arm and a center "bolt" torques into the spindle and pulls the arm off.

Posted on Sep 09, 2010

  • donnie4606 Sep 24, 2010

    How do you tighten one of the arms on the Air Dyne it is loose.

  • trewly617 Oct 05, 2010

    donnie-
    It looks as though the Airdyne has a "pin on" crank arm. Basically you will want to make sure the arm is as far ON as possible by using a rubber mallet (or holding a piece of wood against the arm, if you have no rubber mallet) and tapping the outside of the arm toward the bike scooting it in on the spindle. Then, with a metal hammer tap in the pin nice and tight. The pin acts as a wedge and holds the arm tight against the spindle. Hope this helps.

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Posted on Jan 02, 2017

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1 Answer

What is causing a clunking noise when each pedal is at the bottom of its stroke? This happens when I am sitting on the bike, but not when I am off and just pushing the pedals by hand.


It is most possible the cotter pin fixing the pedal arms to the shaft - one is lose. Very easy to repair and cheap to replace. This cotter pin is installed where the bicycle frame shaft goes through the pedal arm. Pin has the thickness of a writing pen about one inch long with a nut at one end. Tap the smooth end of the cotter pin firmly with a hammer to drive it deeper into its hole. Tighten the screw at the other end (do not over tighten as it strips easily. Do it on both sides. Nice videos on you tube in this regard although it is shown on road bicycles.

Oct 28, 2014 | Schwinn Airdyne Evolution Comp

Tip

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

on May 23, 2016 | Schwinn Airdyne Exercise Bike

1 Answer

Pedal stripped


You will need to have that crank arm replaced. They do make repair threads, but the price to install is just as much as replacing the crank arm. Your local bike shop can provide the correct parts.

Mar 28, 2014 | Schwinn Cycling

1 Answer

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

Jan 21, 2014 | Schwinn Airdyne Evolution Comp

1 Answer

My old Schwinn 26" red


Web search "fix shimano internal gear hub" or whatever the bike has.

Aug 09, 2011 | Cyclone Bicycle Pedal Crankset And Arms...

1 Answer

The pedal mechanism is loose when try to ride


Can you be more specific? There can be several reasons for this. Pedal arms can be worn out, hub in fan can need overhauling. Does the chain move with the pedals? Are the pedal arms loose or the pedals themselves? Pedal hub could also need overhauling. If the overhauling seems to be the issue, best bet would be to take the machine to a local Bike shop, If you're pretty handy, and can do the repair yourself, give me more specific details and I can suggest better instructions on repair.
Mike

Dec 27, 2010 | Schwinn Original Airdyne

1 Answer

Just installed the schwinn hitch rack 3 on the hitch of our vehicle. How to we fasten bicycles on rack? men'a AND women's bikes.


For the ladies model you need an adapter bar to make it like a mans model. , mens, you just set arms on the bike's top bar and bungee it or if it has straps use them. Make sure that your pedals do not scratch your trunk by either buying foam pedal blocks or wrap and tape them. Put the womans bike on first.

Oct 02, 2010 | Schwinn Cycling

2 Answers

Bad crank bearings can move crank arms small amount.


That would depend on the style of bearings (loose ball or caged balls vs sealed bearings) and possible bottom bracket damage.

Either way, a Bike Shop mechanic would probably need to assess it for you. Special tools are usually involved.

http://parktool.com/repair/byregion.asp?catid=61

May 23, 2010 | Schwinn Mesa Gs Mountain Bike

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