Precor EFX EFX 5.23, Service Manual

Page: 17 / 79

Diagram 5.4 - Measuring Belt Tension
15. If the locking tabs on the right and left step up belt tension bolts have not been straightened,
use pliers to bend the locking tabs out of the way so that the bolts can be turned.
IF... THEN...
The belt tensioning gauge reads Turn both tension bolts
less than 14 pounds
clockwise
, in equal quarter-turn
increments, until the belt tensioning
gauge reads 14 - 16 pounds @1/4” deflection.
The belt tensioning gauge reads Turn both tension bolts
more than 16 pounds
counterclockwise
, in equal
quarter-turn increments, until the belt
tensioning gauge reads 14 - 16 pounds @ 1/4”
deflection.
16. Verify that the belt alignment is still correct by performing the procedure in step 4.
17. When both the step pulley belt tension and alignment are correct, use pliers to bend the
tension bolt locking tabs into the “locking” position.
18. The input pulley tension must now be checked and corrected, if necessary. There is not
sufficient room to use the belt tension gauge to set the input pulley belt tension. It will be
necessary to use the correctly tensioned step up belt as a comparison to set the input belt
tension.
19. Using your finger, press in on the center of the step up pulley belt to get a feeling of how
much pressure it takes to deflect the belt a 1/4”.
20. Using your finger, press in on the center of the lower span of the input belt. Compare the
pressure required to deflect the input belt to the pressure required to deflect the step up belt.
15 lbs
1/4”