ICON Health & Fitness NTL14221.2, User Manual

31

SYMPTOM: The walking belt slows when walked on

a.  

Use only a surge suppressor that meets all of the 
speci

fi

 cations described on page 17.

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 (C) 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 walk on 
the treadmill for a few minutes. Repeat until the 
walking belt is properly tightened.

c.  

Your treadmill features a walking belt coated with 
high-performance lubricant. 

IMPORTANT: Never 

apply silicone spray or other substances to 
the walking belt or the walking platform unless 
instructed to do so by an authorized service 
representative. Such substances may deterio-
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.

SYMPTOM: The walking belt is off-center or slips 
when walked on

a. 

 If the walking belt is off-center,

fi

 rst 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 walk on the treadmill for a few min-
utes. Repeat until the walking belt is centered. 

b. 

 If the walking belt slips when walked on,

fi

 rst 

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 walk on the treadmill for a 
few minutes. Repeat until the walking belt is prop-
erly tightened.

C

2–3 in.

b

a

b