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Life fitness F1 Treadmill is Jerky when walking or running - what can I do to fix it?

When walking or running the treadmill is jerky as if the motor loses slight power It kicks you slightly and then is Ok and then does it again

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  • dickianne2
    dickianne2 Dec 04, 2012

    Hi, we have tensioned the running belt, put some more tension on the drive belt and wd40d the roller bearings. Unfortunately it still does the same thing although it's worse with my husband on it as he is heavier. So we have tried all mechanical things..! The machine is less than 12 months old and only 30 hours use from new

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1) Lube the deck belt, this happen because the lack of maintenance, use 100% silicones or wax, check your instr. manual
2) Lube the rollers bearint with wd-40
3) Test the drive belt motor, for cracking or worn belt
4) Test the input voltage motor, if there are the motor need repair, see my personal TIPS for motor help.
5) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty. see the block diagram
God bless you

Life fitness F1 Treadmill is Jerky when walking or - 12_4_2012_4_46_45_pm.gif

Posted on Dec 04, 2012

Testimonial: "Thank you.."

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SOURCE: treadmill may be slipping

Depending if this is a new issue or old, It could be a couple of issues. Check the belts for slipping. Proper tension on walking belt (check your manual) or drive belt -remove the cover and you might be able to see if the belt is slipping or it could be a load issue (electronics not sensing added load fast enough). My bet is belt tension. Also Lubricate,lubricate,lubricate
www.twincityrepair.com

Posted on Mar 02, 2009

vpaaf
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SOURCE: 9100 life fitness treadmill

Sounds like you need a new lower board replacement. You can get that for that treadmill by call lifefitness or sportsmith.com Please rate me good

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startup error on life fitness treadmill

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Can you please provide model of unit.

Posted on Feb 20, 2010

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Walking on tread mill is jerky. almost like some one keeps putting the break on


Hi There, have you lubricated the deck lately? does the belt glide easily over the deck with your foot pushing it and the power to the treadmill off? If the belt glides easily with your foot, but not when powered, you're motor control board could be about to fail. capacitors routinely go bad on these controllers over the years. You can find further help by emailing gregATbuyfitnessrepairpartsDOTcom
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Healthrider 500sel



B) 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.




http://www.youtube.com/watch?v=GPI6dFJCUA4


http://www.youtube.com/watch?v=-oeXTKqWECw&feature=related

http://www.youtube.com/watch?v=bF3OyQ3HwfU&feature=related

sincerely.

E. CUADRA






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I have noticed a few times that my f3 life fitness treadmill changes pace on me, and so does the incline. i can see it on the monitor, also it has started feeling like the belt is catching or something, or...


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Here is a generic procedure for adjusting the belt:
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Depending if this is a new issue or old, It could be a couple of issues. Check the belts for slipping. Proper tension on walking belt (check your manual) or drive belt -remove the cover and you might be able to see if the belt is slipping or it could be a load issue (electronics not sensing added load fast enough). My bet is belt tension. Also Lubricate,lubricate,lubricate
www.twincityrepair.com

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