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Before You Begin
1
Thank you for purchasing the Precor M9.21i or M9.21si Low Impact Treadmill which
feature several sophisticated and beneficial technologies:
Ground Effects,
Integrated Footplant
Technology, Smart Rate®
, and the
Heart Rate Interactive System
.
Ground Effects allows the treadmill’s running bed to “float” on specially formulated elastomeric
springs which cushion impact and control lateral motion without diminishing the bed’s lively,
responsive feel. Because it’s fully suspended, the bed provides optimum shock absorption
anywhere your feet land, not just in the center of the running area.
Integrated Footplant Technology (IFT) is a microprocessor-regulated motor control system. This
patented technology collects motor and belt speed data, using it to monitor your workout and
enhance your safety and comfort. It replicates the natural walking and running motion of your
feet. By allowing slight, natural speed variations throughout your stride, Precor treadmills
reduce shock and pounding to your body.
The console’s display offers varying selections that provide motivating feedback about your
workout. The display also incorporates the latest in cardiac monitoring to provide Smart Rate
®
— a
visual aid that lets you, the user, see your heart rate with a glance. On the M9.21i or M9.21si, the
optional Precor receiver must be installed and the Precor Heart Rate Option chest strap worn,
before the graph on the display can light up with colored cells to indicate your exercise intensity.
The M9.21i Low Impact Treadmill offers an easy-to-understand electronic console that gives
motivating feedback about your workout. Professionally designed exercise options incorporate
the latest in exercise science. Three different modes enhance your workout capabilities: Manual,
Interval, Weight Loss, Random, and Heart Rate Control course which requires the Precor Heart
Rate Option kit. The Heart Rate Course monitors your heart rate within a target zone (usually
85% of your maximum heart rate) and automatically changes the incline to keep your heart rate
in that zone when you wear the chest strap during your workout.
The M9.21si combines all the benefits of the M9.21i and provides additional features: Program
and Custom mode. The factory-programmed courses provide variety to help motivate you
during your workout. A graphic representation of the programs appear on the console.
The M9.21i and M9.21si Low Impact Treadmills are for household use only and have many
unique features which sets them apart from conventional treadmills. To maximize your use of
the M9.21i or M9.21si treadmill, please study this guide thoroughly.
Unpacking the M9.21i or M9.21si Low Impact Treadmill
The M9.21i or M9.21si treadmill is carefully tested and inspected before shipment. Precor ships
the unit in pieces, as listed below:
• running bed assembly
• upright column support assembly (includes the electronic console and upper handrail
clamp)
• left and right handrails
• owner’s manual, limited warranty card, and hardware kit (The hardware kit is shown in
Diagram 1.)
Optional equipment that you can purchase through your dealer includes:
• Precor Heart Rate Option
• Precor Smart Weights
Carefully unpack the pieces of the treadmill and lay them on the floor near the location
where you plan to use the treadmill.
This manual explains how to assemble, use,
and maintain the M9.21i or M9.21si Low
Impact Treadmill. The following conventions
are used in this manual:
“Note:” Contains additional information that
applies to the preceding text.
“Important:” Indicates information to which you
should pay special attention.
“CAUTION:” Indicates steps or information
necessary to prevent harm to yourself or
damage to the equipment.
“WARNING:” Provides instructions to prevent
electrical damage to the equipment and prevent
injuries to yourself or others.
“DANGER:” Indicates steps you must take to
prevent electrical shock.
CAUTION: This unit weighs over 160 pounds.
To avoid injury and to ensure the safety of the
unit and yourself, get adequate assistance
before unpacking your treadmill. Slide the
running bed out of the box.