Question about Proform 7.25Q Treadmill Walking Belt

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I have a Proform 725ex treadmill. I can't remember where the small allen wrench that came with it is. I thought it was somewhere on the treadmill in a compartment or storage place. I have used it before to adjust the belt , but now need it for replacing belt.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Proform 520

Not sure what's happened here. treadmill won't turn on when red key is inserted. checked electrical plug to make sure it worked. I couldn't see that there's anything wrong with the red key. Have any ideas?

Posted on Sep 12, 2009

taran_2005
  • 10515 Answers

SOURCE: Proform 765 treadmill slows down when step on. Do

Hi,

More likely time to replace the belt. Let me provide you with all the information you need. This information is already there on many websites.

BELT LOSES POWER
(Bogs Down or is Sluggish) This condition is when the treadmill operates normally without a person on the belt and then slows down when someone steps on the belt or when the treadmill operates normally for a given period of time with someone on the belt then abruptly begins to slow down.
There are four typical causes for this problem (listed in order of our experience:
1) The walking belt and/or deck are worn. (85% of the time)
2) The walking belt and/or motor belt are too tight- if you have adjusted either recently. (8% of the time)
3) The motor has lost torque and needs brushes or has demagnetized. (5% of the time)
4) The controller is dropping output. (2% of the time)
Walking Belt is Worn:
The only certain way to test for a worn walking belt is to take a DC amp draw (if you have a DC treadmill) or an AC draw (for AC). Trying to look at the belt or a feel test is highly unreliable. Better tests, if you lack a DC ammeter (they are expensive for a good one), are a coast test or an incline test. To test the deck, go back to the Troubleshooting section and download the belt and deck inspections instructions. The coast test is to get on the treadmill as the lowest incline setting and walk on the treadmill at 3 MPH. Pull the safety key and it should take you 2-3 full steps to stop (this is a general rule…some like a few Tunturi models stop on a dime even with a healthy belt but most this tests works well upon). Fewer steps indicate high friction.
The incline test is to put the treadmill at max incline and walk on it at 3 MPH. If the treadmill operates normally at max incline but bogs down at minimum incline, replace the walking belt. Gravity takes over for the drive system eliminating the friction problem. On some heavily worn walking belts, this test will not eliminate the problem.
Walking Belt/Motor Belt too Tight:
If you have adjusted the walking belt or motor belt recently, check for this problem. When the belts start slipping, some people just crank down the belts and on treadmills, tighter is not necessarily better. The
tighter the belts, the more the drive system has to work to keep everything moving. You should be able to lift the walking belt (with the treadmill unplugged) in the center of the treadmill about 3” without straining. Tighter belts should be loosen but make sure you don’t create a dangerous slipping situation by loosening.
The motor belt (with the treadmill unplugged) should be able to be turned by hand to almost a 90 degree angle from its normal operating position. Loosen the belt if too tight. Make sure to test for slipping and if it does with the proper tension, replace the motor belt.
Needs Brushes / Demagnetized Motor:
Typically when we find a motor that has lost torque; it needs a new set of motor brushes. Typically we can make brushes for almost any motor if we don’t already stock them. Motor demagnetization is not that common but it does happen and it is normally easy to diagnose. If you have confirmed the belt and/or deck is not worn and the belts aren’t too tight, you can test for a motor torque problem. DO NOT USE YOUR HAND OR ANY OTHER BODY PART TO IMPEDE THE MOTOR…YOU WILL LIKELY LOSE YOUR BODY PART IN THE PROCESS IF THE MOTOR IS GOOD. The step to test for the motor is to use a foreign object preferably on a long shaft. First determine the direction of the motor spin (most have directional movement printed on the motor tag), then apply pressure with an object with downward pressure on the flywheel in the direction the flywheel is turning (do not attempt to put force against the rotating direction of the flywheel as you can easily injure yourself). If you can slow the motor, typically you need brush replacement.
To test for demagnetization, the motor must be disassembled. Once you have the motor retaining bolts removed, remove the motor core by sliding it out of the end of the housing. If the magnets pull the core against the housing and it is difficult to remove, the magnets are good. If the magnets do not attract the core, the motor has to be replaced.
Controller:
This is the most uncommon of the causes. Typically replacing a controller in this situation will not solve the underlying problem and then you will end up replacing a belt as well as a control. Normally if a control is dropping output, it will do it with a person on the belt or not. Tests of DC output dropping is normal in many controls since they have a current limiter which will automatically drop output to prevent burning up the board. This is best diagnosed by eliminating the other possible problems first. If you are left with the control as the cause, replace the control.

The site :-

http://www.treadmilldoctor.com/Treadmill-Belt-Bogs-Down

Any further assistance, let me know.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Oct 10, 2009

  • 3 Answers

SOURCE: HOW DO YOU ADJUST THE BELT ON A PROFORM 725 SPACE

Use the allen wrench to loosen side that is touching. 1st locate on the end of the treadmill 2 slots, 1 on each side and place the allen wrench into the slot. turn anticlock wise 1/4 turn. Turn on treadmill at 3 to 4 miles per hour (not standing on it) and make ajustments in 1/4 turns until belt gets centered and snug. When you have it centered you may ahve to tighten or loosen it in case it is slipping when you are running on it. When you ajust it when centered you should do this in 1/4 turns on both sides to keep it centered. If this doesnt fix the problem I suggest that you may have some other problem or are not capable of reolving this problem on your own. Ask another friend for there opinion if this fails.

Posted on Feb 20, 2010

  • 82 Answers

SOURCE: Proform 590 HR Treadmill. Belt won't run

Hi, i fixed one just the other day, the control unit fails.
broddersbaldrick on a big auction site fixes them :)
Hope this helps

Posted on Apr 22, 2010

maxtreadmill
  • 832 Answers

SOURCE: Proform Crosstrainer 5.0 Treadmill

ICON CALIBRATION INSTRUCTIONS- INCLINE
1) Press the Stop and the Speed Up keys down while inserting the safety key. If this doesn’t work, click on the help topic entitled “Alternate Calibration Codes” for key sequence instructions to enter calibration.
2) Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
3) Press either incline key and the incline will calibrate automatically.
4) THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED.After completing calibration of incline, press the Stop key and then remove the safety key.

Posted on Jul 16, 2010

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