Belt is loose
Hi There,
Firstly take off the motor cover and check that the motor belt is not slipping when you use the treadmill. If it is not slipping turn the rear roller adjusting bolt 3/4 of a turn clockwise. Retest. If you have to turn it much more than another 1/2 a turn then the machine needs a tech to check over .
SOURCE: belt slipping have tried to tighten, just bought used
When the belt slips, it can be 2 different places. The trick is to look at the front roller when the belt slips. If the front roller stops with the walking belt, then the drive belt (between the motor and front roller) is loose and can't be fixed by tightening the walking belt. If the drive belt is slipping, it needs to be tightened or replaced. I need the brand and model number to help you further.
SOURCE: how to tighten belt...Vitamaster by Roadmaster
To tighten the belt, start by locating the two bolts that adjust the rear roller (one on each side of the unit in the back). Run the unit at about 3 mph. Tighten the bolts a 1/4 turn at a time. Make sure that what you do to one side, you MUST do to the other side or the belt will get off center. After you tighten it 1/4 turn, check the belt to see if it is still slipping. If it is then tighten the belt 1/4 turn again. Continue until the belt does not slip, but do not tighten the bolts more than 2 full turns.
SOURCE: the belt has slowly moved
There are two allen bolt adjustments on the bottom left of the treadmill as you are facing it to get on. o adjust the side-to-side position, turn one one way and the other the other way.
SOURCE: the belt is loose on treadmill how do I tighten it
Is the belt drifting side to side? If so, adjust it with the Allen bolts on both sides of the base. If the belt is just slipping, has your treadmill had a lot of use? If so, you may need a new belt. You can order one at Treadmill Parts
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