Precor EFX 524I Owner's Manual page 56

Level the EFX by placing it on a solid, flat surface.
Before exercising, make sure the EFX does not wobble from side to
side or front to back. Ask your assistant for help to make adjustments.
Important: If the unit is placed on a slightly uneven surface, rotating
the rear pads can help, but will not compensate for extremely uneven
surfaces.
1. To remove any side-to-side movement,
rotate the rear pads.
2. To counteract any front-to-back rocking
motion, ask your assistant to grasp the
upper handrails and raise the front of the
unit off the floor. Use a crescent or
combination wrench to loosen the nut
on the height adjuster.
3. Turn the height adjuster to eliminate the
rocking motion.
Once you have the proper height adjust-
ment, use the wrench to turn the nut and
tighten it securely against the base tube.
Important: If, after performing the steps
above, the unit still rocks slightly from
front to back, you may need to remove the nut on the height
adjuster.
4. Have your assistant carefully lower the unit to the floor.
EFX524i Elliptical Fitness Crosstrainer Assembly Guide
Verify that the heart rate display is operational.
1. Hold on to a stationary handrail and step on the foot pedals.
2. Begin pedaling. A pedaling speed above 40 strides per minute
must be maintained for several seconds.
3. Grasp both touch-sensitive handrail grips on the stationary
handrails.
4. Look at the Heart Rate display. After a few seconds, a number
appears indicating your heart rate.
Note: If the display remains blank, refer to the Product Owner's
Manual for troubleshooting tips.
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