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NordicTrack x9i Terrible banging sound coming from belt roller in back

Motor seams to be mounted properly and securely

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Hi There, If I recall the x9i is an Incline Trainer style of treadmill. This unit may have a speed sensor mounted to a bracket that an encoder wheel travels thru to monitor speeds. If this gets loose or bent inside, it will rub or strike that encoder wheel and destroy things down there. Be sure to unplug this tread before servicing. Good Luck!

Posted on Jan 03, 2017

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  • Nordic Track Master
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Try to lubricate the treadmill running belt.
If you wish to get some details; visit the site linked here. Pull up older posts.

Treadmill walking belt lubrication

Posted on Jan 03, 2017


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My Nordictrack X9i treadmill console says it is operating at speed, however the track is not moving. Occasionally the belt will move for just a moment then it stops.

do you hear the motor running but the belt is not? if it is the belt need tightened or the drive belt may have broken. remove the motor hood to inspect

Aug 23, 2012 | NordicTrack Exercise & Fitness

1 Answer

Pathmaster 8.0 treamill model 21-3688a fix

Drive Belt Installation for Treadmills

The drive belt is used by the motor to drive the treadmill walking belt via the front roller pulley. A drive pulley is mounted on the roller and the roller has knurling or a sleeve to help it drive the walking belt. The treadmill console detects the current speed of the treadmill by monitoring the movement of a magnet mounted on the front roller pulley with a reed switch or by using an optic switch which monitors an optic disk mounted either on the front roller or on the motor shaft. If the sleeve moves to the side, you will not be able to keep the belt centered and many optic disks can be warped if pushed to the side by the sleeve if it moves, but we do have replacement sleeve kits if needed.

Steps to Replace Drive Belt-

1) Remove the safety key and unplug the treadmill from the wall outlet.

2) Remove the screws securing the motor hood and gently remove the motor hood.

3) Using an Allen wrench provided with the treadmill, loosen the two rear roller adjustment bolts until the rear roller comes into contact with the walking board. Turn the bolts and equal number of turns on each side and keep a count of how many turns you made so you will know how to properly re-tension the walking belt.

4) Remove the drive belt from the motor pulley. Place a screwdriver between the pulley and the belt and turn the pulley by hand. Use the screwdriver to guide the belt over the edge of the pulley. Be careful with the screwdriver to prevent damage to the pulley.

6) Mark the position of the front roller axle on the front roller bracket above the front roller adjustment bolt using a Sharpie marker so you will know where to put the bolt back into position. Remove the front roller adjustment bolt if your treadmill's front roller has a pitch adjustment bolt. If your treadmill does not have exposed roller bolts you will need additional instructions. Please see the troubleshooting section on our website for further help.

7) Gently slide the front roller from out of its mounting position on the frame. Do NOT remove the roller from the walking belt.

8) Slip the old drive belt off the roller and loop the new drive belt onto the front roller pulley.

9) Replace the roller back into its slot on the pulley side and re-tension the front roller pitch bolt to its proper place using the Sharpie mark as a guide.

10) Using the screwdriver, loop the drive belt over the motor pulley. Many Icon units originally had the drive belt misaligned by design (if you can believe it). This was to use the side load of the drive belt in order to keep tension lower. It does lower amp draw for the machine and replacing a side load drive belt occasionally is much cheaper than replacing a motor and/or controller so if your original drive belt was off-centered, install the new belt in the same manner.

11) Re-tension the walking belt.

12) Plug in the machine and check the drive belt for slipping. You can use some automotive fan belt dressing on the grooved or contact side of the belt to help it with grip on the pulleys and it will treat the belt as well. We prefer using belt dressing rather than over-tensioning the belt for the aforementioned amp reasons as well as additional stress placed on the drive system parts.

13) Replace the motor cover and test.

14) Make sure the walking belt is not slipping and is properly aligned and your treadmill is ready to use.

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Jul 09, 2012 | Exercise & Fitness

1 Answer

Replace belt on nordictrack exp 1000 treadmill

I presume you mean walking belt rather then the drive belt under the motor hood. You will need to loosen and remove the front and rear rollers and also remove the bolts on one side of the deck. This will allow you to slide the old belt off and fit the new belt. Then tighten the deck bolts, replace and refit both rollers. When removing the front roller first measure the securing bolt so you can set this again when reassembling. With the rear roller tighten both bolts the same to keep the belt straight. hope this makes sense.

Apr 14, 2012 | Exercise & Fitness

1 Answer

Knocking, banging sound C1500 my husband just received this equipment

I would call the retail shop and they will organize a repair man out to fix from Icon Fitness. This is done under warranty .

Feb 22, 2012 | Nordic Track NordicTrack Commercial 1500...

1 Answer

When running on our treadmill the belt slips.

Hello, It sounds like you have aslipping front roller pully. Remove the motor hood and watch the front roller while you are on it. Once the belt is moving slowly, try to stop the wlak belt by planting your fett for a second, if the walk belt stops, but the drive belt and motor continue to run, the plastic pully is slipping and the whole front roller will need to be replaced.

Hope this answers your question.

Jan 16, 2011 | Nordic Track NordicTrack A2750 PRO...

1 Answer

I have a NordicTrack Elite zi treadmill. While running I hear a ratcheting click coming from the front housing area. When I hear this ratcheting click the belt is slipping a little bit. Any ideas of...

This is more than likely a loose drive belt, which would explain the slipping as well as the sound. To tighten this take off the plastic cover that covers the motor. You will see where the motor connects to the front roller with the drive belt. To tighten it there are two bolts that hold the motor to the machine, loosen those then pull it tight and retighten them, This should eliminate the problem.

Aug 17, 2010 | Nordic Track NordicTrack Elite zi...

1 Answer

I have a NordicTrack EXP1000. The walking belt was so far to the left that the edge began to fray. So, I adjusted the belt towards the right and now it slips forward now and then when it gets up to 3mph or...

If the walking belt slips when walked on, first remove the key and UNPLUG THE POWER CORD. Using the hex key, turn both idler roller bolts clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each edge of the walking belt 2 to 3 in. (5 to 7 cm) off the walking platform. Be careful to keep the walking belt centered. Then, plug in the power cord, insert the key, and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened.
If their is still slippage then the drive belt will need to be adjusted.
Find the motor mounts. Many motors in Icon treadmills have a main pivot joint in which a bolt runs the full length of the motor mount. This bolt will require loosening to provide maximum adjustability. Find the set bolt(s) on the motor.
This is typically run through only one side of the motor mount or may be on both sides but it does not run the full length of the mounting. Loosen this bolt but do not remove.

The drive belt must be tensioned by hand. While one person applied increased tension to the drive belt, the other person should tighten the motor set bolt(s) that are described above. Tighten the bolt and test. If the problem is not corrected, if problem persist replace drive belt

Jun 11, 2010 | Nordic Track Nordictrack Exp1000 Treadmill...

1 Answer

Dryer has a banging sound when turning it on. How can I fix this?

The banging sound is cause by a flat spot on the roller mounted to the belt tensioner. Replace the roller and the belt as well. Sears does sell these two items as a kit. Go online to sears .com and you can get a price plus instructions comes with this kit

Apr 09, 2010 | Kenmore Elite HE3 Steam 8674 Dryer

1 Answer

The spin bang all over the machine

is it actually spinning or jsut making banging noise. if just noise
sounds like a broken motor coupling( this machines equivelent to a belt. part number 285753a . mounts directly to the motor shaft and connects to the transmission, order a new one it installs between the motor and transmission,assy

Jan 16, 2008 | KitchenAid KAWS850LE Top Load Washer

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