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Knocking noise when walking - Nordic Track NordicTrack Apex 6000 Treadmill Rear Roller

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This a WORN deck belt problem, you must lube a excahnge the d.belt.
2) LUBe THE rollers bearing too v. important.
3) Test the drive belt motor, for worn or crack belt
4) Test the input voltage motor, if there are the motor need repair.
5) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty.
God bless you
knocking noise when walking - 11_28_2012_3_17_50_pm.gif

Posted on Nov 28, 2012


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Is this knocking noise normal? Treadmill is brand new, just delivered this morning. Thanks

Knocking is not normal, could be a roller bearing gone bad. They could have tightened the tread belt to tight causing the bearings to knock which will cause the walking belt to prematurely stretch and wear out. Could also be a drive motor bearing. On the flywheel side.

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Walk away from it. Unless your getting it dirt cheap. Tapping is top end, Head job. Not cheap. Knocking is bottom end. replace the engine.

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Knocking noises more than likely come from the rear roller, there could be a small chance it's coming from the motor it's self though.
Have some walk on the machine and make the noise while you locate which end of the treadmills coming from.

If it is the rear roller the bearings will need to be replaced, this can be done by removing the rear roller and taking it down to any bearing shop and have them locate the bearing numbers. Ask them for advise on removing them as well.

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Hi, volvo's have pretty solid engines so unless you hear an load knocking noises coming from the engine or blue smoke coming out the exhaust you should be ok engine wise, but here is a list of things you should check
1, listen for knocking sounds from engine
2, look for blue color smoke coming out of exhaust, if you see blue smoke then walk away as it means engine needs rebuilding.
3, check the oil, check oil level and color if their is anything that looks like mayonaise then this means head gasket has gone and needs replacing this can be expensive, if the oil level is ok and looks ok then the engine should be fine.
4 have a good look around engine for oil or water leaks check on floor under engine for signs of oil or water dripping off engine,
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9 check all the lights and switches work inside the car.

that list should give you a good idea of what to look for if you have any concernes walk away their are plenty of other cars out their. have a look underneath at the floor to check for corrosion as it would be expensive to get the floor welded up and also ask about service history.

let me know if you need further assistance ok

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