Pro-Form PFTL39115 Manuel D’Utilisation

a.     Use only a surge suppressor that meets all of the 

specifications described on page 13.

b.   If the walking belt is overtightened, treadmill per-

formance may decrease and the walking belt may 

become damaged. Remove the key and UNPLUG 

THE POWER CORD. Using the hex key, turn both 

idler roller screws counterclockwise, 1/4 of a turn. 

When the walking belt is properly tightened, you 

should be able to lift each edge of the walking belt 

2 to 3 in. (5 to 7 cm) off the walking platform. Be 

careful to keep the walking belt centered. Then, 

plug in the power cord, insert the key, and run the 

treadmill for a few minutes. Repeat until the walk-

ing belt is properly tightened. 

c.   Your treadmill features a walking belt coated with 

high-performance lubricant. IMPORTANT: Never 

rate the walking belt and cause excessive wear. 

If you suspect that the walking belt needs more 

lubricant, see the front cover of this manual.

d.   If the walking belt still slows when walked on, see 

the front cover of this manual.

a.   If the walking belt is off-center, first remove the 

key and UNPLUG THE POWER CORD. If the 

walking belt has shifted to the left, use the hex 

key to turn the left idler roller screw clockwise 1/2 

of a turn; if the walking belt has shifted to the 

right, turn the left idler roller screw counterclock-

wise 1/2 of a turn. Be careful not to overtighten the 

walking belt. Then, plug in the power cord, insert 

the key, and run the treadmill for a few minutes. 

Repeat until the walking belt is centered.

b.   If the walking belt slips when walked on, first 

remove the key and UNPLUG THE POWER 

CORD. Using the hex key, turn both idler roller 

screws clockwise, 1/4 of a turn. When the walk-

ing belt is correctly tightened, you should be able 

to lift each edge of the walking belt 2 to 3 in. (5 to 

7 cm) off the walking platform. Be careful to keep 

the walking belt centered. Then, plug in the power 

cord, insert the key, and carefully walk on the 

treadmill for a few minutes. Repeat until the walk-

ing belt is properly tightened.

a

b

Idler Roller Screws

2–3 in.

b