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Question about Precor 9.31 Treadmill

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My 3 year old (home personal use) precor 9.31 treadmill has started makking a dull continuous clicking noise when the belt starts. The noise appears to be coming from the back end. The noise get reduced when the machine warms up. Any guesses? Could it be the ball bearings in the rear or something similar? Thanks.

Posted by w2farhan on

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1 Answer

Stephen Miller

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  • Precor Master
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4 Related Answers

Anonymous

  • 14 Answers

SOURCE: ???maximum user weight for Precor 9.45i

Normally most home treadmills are 250-300lb user capacity.
Call Precor with your model # and S/N and they can tell you exactly.

Posted on Apr 29, 2009

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Anonymous

  • 6 Answers

SOURCE: Precor M9.21 Treadmill - Stops under load

This probably did not happened suddenly right? the problem is not the motor however you can easily check the blue capacitor for peace of mind. with the power disconnected, disconnect one side off the capacitor from the top. with a ohm meter put the 2 probes on the cap,you will ear a temporary beep sound from your meter, then reverse your probes on the capacitor and again a temporary sound that mean your capacitor is good and your motor will run OK.

Your problem is more then likely your run belt and bed assembly. When new, these are coated with a wax of some kind for slipping, has you use the machine wax wears off, and so is the belt. You can see a black rubber dust at the rear of the machine. And so resistance increase when pressure is applied on the running belt.

Just behind the on/off switch where the power cord goes in, there is a auto reset 15 amp breaker that trips when too must resistance against the motor increase the amperage over 15amps. At 7 min/m on your speed setting and if the belt is adjusted correctly with nobody on, the motor pull about 6amps, with someone like me 180lbs, the motor pulls an avg of 10amps with a new belt.

If you have a clamp amp meter you can test it yourself.

2 parts you will need to fix this; 50985-101 (bed assembly) and 36355-101 (run belt 17 X 110) This is real easy to install.

make sure these parts are for your machine model # as they did increased the width of their belt over the years

Since 1998 I had to replace these parts 2 times with an average of 3 people using the treadmill every day. This is a good machine and if everything else is good it's worth it. I paid $300 for these parts, i'm sure if you shoppe a little you can do better.

Have a good one

Ben

Posted on May 26, 2009

Anonymous

  • 83 Answers

SOURCE: wax or silicone on my 10+ year old Precor M9.21

Use silicone to lube your treadmill.

Posted on Apr 30, 2010

Joshua

  • 95 Answers

SOURCE: Where can I find a Precor 9.21 treadmill motor cover?

Do you know which version of the Precor 9.21 you have? There are a few different versions you can view here. Click on your version to view the parts list and look for "Cover, Motor" or "Motor Cover".

For instance, if you have the 9.21 (AYYZ), the proper motor cover is this part #5019749

However, this part #5005569 is listed as the proper motor cover for the 9.21 (F5), 9.21i (2X), 9.21s (F6), 9.21si (2Y), and a couple others. Make sure you have matched up your exact model number with the motor cover you need so do you not order the wrong part.

Posted on Jan 13, 2012

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Two likely candidates: Belt or tread. Lubricating the tread would be the easiest starting point; but if you're running at 7 or more you've probably already thought of that.
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Precor Error E4, Incomplete Initialization Probable Cause Indicates that an incomplete upper PCA to lower PCA initialization occurred. When this error occurs, all lift motor and drive motor motion is ceased and the display will go blank except for the error displayed.
Corrective Action Run the initialization program. Caution: The treadmill's running belt will accelerate to the treadmill's maximum speed (12mph). DO NOT stand on the treadmill's running belt during the procedure.
  1. Set the on/off switch to the OFF position. Wait a minimum of 10 seconds to allow the internal power supply to discharge.
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We also have a precor c966 it stops sporadically. We have already had it serviced and put a new belt on it and the problem continues.

see the video and lube the deck belt+rollers bearing too.
Tight the drive belt motor.
test the motor see the diagram and go to my personal tips for motor helps.
God bless you2_27_2013_6_25_12_pm.gif
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1)First lube the deck belt+rollers bearing see the video and proceed


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1_11_2013_7_20_37_pm.gif

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It sounds like you have a bearing failing, either in the front roller or the motor. If it is the front roller it will be a dull "Clicking" noise, if its the drive motor it will be a growl noise. The growl will be so loud at top speed you wont be able to even talk over the noise. Remove the motor hood and this will help you determine the culprit.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

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