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Running Belt Tension
Note: Prior to making The running belt tension may need to be adjusted over time to keep the
any adjustments to the the belt from slipping with each jogging step or at high speeds. Use the
running belt tension, following procedure for testing belt tension.
verify the drive motor
belt is properly
1. Accelerate the running belt to 3.0 mph (5.0 kph).
tensioned.
2. Stand on the side of the treadmill. Grasping the handrails firmly, place one
foot on the running belt with a very sharp impact. The running belt should
not come to a complete stop. The running belt should slip for a split
second, then forcing your foot back.
If the running belt does not stop with impact, the running belt may be to
tight and cause the belt and other components to premature fail.
Loosening the tail roller Allen screws a 1/4 of a turn counter-clockwise and
re-checking will be necessary.
If the running belt stops and noticeable slippage occurs, check the
location of the slippage. It can be slipping due to the drive belt slipping
over the drive motor pulley and head roller or from the running belt
slipping over the rollers.
---- If the slippage is caused from the drive belt slipping over the drive
motor pulley, loosen the motor mount bolts located at the mount
of the drive motor and tighten the adjustment bolt. For detail
more details refer to Drive Belt Tension procedure in this
section.
--- If the slippage is caused by the running belt slipping over the
rollers, tighten the running belt.
Note: If you do not
3. Tighten the left and right tail roller Allen screws clockwise in equal 1/4
tighten Allen screws in increments. Repeat Step Two until running belt is tensioned properly.
equal increments, you
will mis-track the
running belt. Verify
correct belt tracking
procedure.
The running belt has been tightened too much and may require loosening, if:
Note: Do not over 1. The edges of the running belt curls down or up, causing the middle of the
tighten the running belt. belt to bubble up.
Over tightening will
cause premature 2. Running belt creaks as it goes over the rollers.
failure.
Note: If the running 3. Treadmill trips the circuit breaker (on/off switch) after tensioning.
belt creaks in spite of
being loosened, apply
dry lubricant, such as
TFE Teflon or powered
wax to the deck.
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