Monday 13 November 2017

Adjusting the treadmill belt if it does not keep the position

 I ask you kindly to explain what should I do on the treadmill that presents this little problem:
- the belt slowly moved all in the left part (seen from above) and is therefore no longer "centered"; what adjustments should I take, should I adjust on the front or on the rear roller?
The front roller must be perfectly aligned and should never be touched for adjustments.
To adjust the belt, you can use only one of the nuts on the rear roller, turning it clockwise or counterclockwise depending on the effect it seeks (if you remove the two endcaps, it will be easier for you to see what happens).
When adjusting the treadmill should be going at around 2/3 km / h unloaded (nobody on the belt) and you can start by turning the nut (1 full turn / if no effect repeat with max another turn), so that the belt returns in the central direction. Once the center is reached, the belt will tend to "go to the other side", so you should turn maybe 1/4 or 1/2 turn in the opposite direction to the initial adjustment to settle.
If it seems good now, you can gradually increase the speed, checking that at higher speeds your belt do not tend to move (in which case you repeat the operation again, with ever smaller and more accurate adjustments) until you reach the max speed.
1) If at first it is very "off-centered" you can initially push it manually (pointing your feet when the belt is turning at low speed) to make it go a bit in the middle. This is to prevent the belt from ending up on the rim of the footrest and ruining, crawling on.
2) If you need to adjust very frequently, check the leveling of the feet and the floor itself. Also check if the running belt is not under-tightened (avoiding, however, to over-tighten). If even tapered and well tensioned, the belt tends to move around, check your own way of walking / running because probably you don’t run in the middle, or you push with one foot more than the other and this can be a good opportunity to fix a little for a better training.
---------- Running belt tension instructions (if necessary) -------------

You can self-test and adjust the correct belt tension. Turn both adjustment knob to release tension from the running belt until it slips on the roller when loaded. Then tighten it slowly up to the best coupling. Be careful that if the running belt is old (> 4 years old) and very tighten, it is better to replace it with a new low friction belt.
To set the correct tension of the belt, remove the motor cover, start the treadmill (should rotate at low speed), climb onto the belt, hold the handrails and try to lock the belt.
Check whether the engine continues to rotate but the belt stays it means something is slipping (the belt, the drive belt or the pulley).
Tighten the belt and until the belt - roller – drive belt - motor coupling is perfect, do not over tension, because it only adds load to the treadmill, resulting in early wear on the transmission system and board / engine parts.

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