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TR3000i / TR4000i
Folding Treadmill
31
Belt Tensioning
If the belt begins to slip during use, it will need to be tensioned. Your treadmill is equipped with
tension bolts that are accessible from the back of the treadmill. Before tensioning the belt,
start the treadmill and set the speed to 3 MPH. Using a 6 mm Allen Wrench, included in your
hardware bag, turn the right and left tension bolts 1/2 turn clockwise.
After you adjust each side 1/2 turn, test to see if the slipping is eliminated. If the belt slips repeat
If you turn one side more than the other, the belt will start to drift to the side of the
treadmill and will need to be aligned. DO NOT tighten more than 2 full turns on each side.
If slippage still occurs, contact LifeSpan Customer Service.
Note: Over tensioning the belt can cause
unnecessary friction and wear and tear
on the belt, motor and electronics.
Aligning the Running Belt
Ensure the running belt is centered on your treadmill at all times. Running style and a non- level
1. Press "START", then increase the treadmill speed to 3MPH.
2. Stand at the rear of the treadmill to determine which direction the belt is drifting.
3. If the belt drifts to the left, turn the left adjustment bolt one-quarter turn clockwise and
the right adjustment bolt one-quarter turn counter-clockwise. (See FIG.C)
4. If the belt drifts to the right, turn the left adjustment bolt one-quarter turn counter-clock
wise and the right adjustment bolt one-quarter turn clockwise. (See FIG.D)
5. Observe the tracking of the belt for about two minutes. Repeat steps 3, 4 and 5 as needed.
To move belt to the Right
FIG C.
To move belt to the Left
FIG D.
this step and test again.