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Manage My Life

I have a Proform 730 CS treadmill, model number 831 299270, why does it jerk when I am trying to walk or run?

It runs fine when nothing is on it, but when I try to walk or run on it starts jerking and doesn't go smoothly. I have checked the belt by the motor, which seems fine.

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Treadmills , Body Building and Toning
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Manage My Life
The most common cause of the belt slowing down is a dry or worn out belt and or board. Lift the edges of the belt and look at the walking board and feel of the belt and board. They should be smooth and slick. If the walking belt and board don't seem worn, you should lubricate the belt and board with part number 219168 belt lubricant. The procedure for lubricating the belt is:

Turn the belt by walking on it without the motor running until the belt seam is just past the front roller. Lift the belt and put 1/2 the tube onto the walking board in a zigzag pattern. Move the belt until the belt seam is just in front of the rear roller and put the rest of the lubricant on the walking board.

Start the treadmill and walk on all sections of the belt for 10 minutes. This should distribute the lubricant evenly.

Use only this special belt lubricant on the walking board and belt. Regular silicone spray or other lubricants might gum up the wax on the belt and you will have to replace it.

I have included a link for the lubricant needed for belt and board lubrication.

[ Belt lubricant | The most common cause of the belt slowing down is a dry or worn out belt and or board. Lift the edges of the belt and look at the walking board and feel of the belt and board. They should be smooth and slick. If the walking belt and board don't seem worn, you should lubricate the belt and board with part number 219168 belt lubricant. The procedure for lubricating the belt is:

Turn the belt by walking on it without the motor running until the belt seam is just past the front roller. Lift the belt and put 1/2 the tube onto the walking board in a zigzag pattern. Move the belt until the belt seam is just in front of the rear roller and put the rest of the lubricant on the walking board.

Start the treadmill and walk on all sections of the belt for 10 minutes. This should distribute the lubricant evenly.

Use only this special belt lubricant on the walking board and belt. Regular silicone spray or other lubricants might gum up the wax on the belt and you will have to replace it.

I have included a link for the lubricant needed for belt and board lubrication.

Belt lubricant
by Manage My Life
November 23rd, 2009
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