Precor Treadmill 921i User Manual

Owner’s Manual

Low Impact

Treadmills featuring

the Heart Rate

Interactive System

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Personal Safety

•

Assemble and operate the treadmill on a solid, level surface. Locate the treadmill at least 4

feet from walls or furniture. Keep the area behind the treadmill clear.

Check the M9.21i or M9.21si treadmill before each use. Completely assemble the treadmill

before using it.

Turn OFF (O) and unplug the treadmill when adjusting or working near the rear roller. Do not

adjust the running belt when someone is standing on the unit.

Keep all electrical components, such as the motor, power cord, and ON/OFF (I/O) switch,

away from water or other liquids to prevent shock. Do not set anything on the handrail,

electronic console, or hood. Never place liquids on any part of the unit.

•

Always attach the safety clip to your clothing at waist level prior to beginning your workout.

The safety clip is connected by a cord to the magnetic safety key in the electronic console. If

you encounter difficulties, you can stop the running belt by pulling on the cord to disengage

the magnetic safety key from inside the console. To resume operation, the magnetic safety

key must be replaced.

•

When the treadmill is not being used, remove the magnetic safety key and store it in a safe

place to prevent unauthorized use.

Wear proper exercise clothing and shoes for your workout—no loose clothing. Do not wear

shoes with heels or leather soles. Check the soles of your shoes and remove any dirt and

embedded stones. Tie long hair back.

•

Keep all loose clothing and towels away from the running surface. The running belt will not

stop immediately if an object becomes caught in the belt or rollers.

Use care when getting on or off the treadmill. Use the handrails whenever possible. Step onto

the running belt when the speed is at or below 1 mile per hour (1.6 kilometers per hour).

Never step off the treadmill while the running belt is moving.

•

Before the running belt begins moving (prior to your workout), and after it stops (at the end of

your workout), straddle the belt by placing your feet firmly on the right and left side platforms.

•

Never turn ON the treadmill when someone is standing on the machine.

Keep your body and head facing forward. Never attempt to turn around on the treadmill when

the running belt is moving.

•

Do not rock the unit. Do not stand on the handrails, electronic console, or hood.

Do not attempt to service the treadmill yourself other than the assembly and maintenance

instructions found in this manual.

•

Do not overexert yourself or work to exhaustion.

Stop your workout immediately if you feel any pain or abnormal symptoms, and consult your

physician

Precor Heart Rate Option—Safety Guidelines

The Precor Heart Rate Option was created and designed exclusively for Precor products. The

equipment is extremely sensitive—you should use the heart rate option with this in mind and take

time to read the following guidelines:

•

Handle the Precor Heart Rate Option with care. Do not drop the equipment. It might damage

the transmitter and you could void the manufacturer’s limited warranty.

•

Do not use the chest strap near strong electromagnetic radiation sources. Television sets,

electric motors, radios, and high voltage power lines can interfere with the heart rate signal

that is being transmitted to the receiver and might affect the heart rate readings that appear on

the electronic console.

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•

Use only one chest strap at a time inside the range of the receiver. If the receiver tries to

process several signals simultaneously, an incorrect heart rate reading could result. Be sure to

keep any other transmitters at least 5 feet (1.5 meters) away from the receiver on your M9.21i

or M9.21si treadmill.

Keep the equipment dry. Although the chest strap should not be immersed in water, wetting the

electrodes and your chest will improve the initial performance. Note that perspiration on the

chest strap during workouts is normal and actually enhances the signal being sent from the

chest strap’s transmitter.

To conduct the electrical impulses from your heart, the chest strap’s electrodes require a

certain percentage of salts and minerals in the water used to wet them. The electrodes continue

to transmit your heart rate reading as long as they are in contact with your skin and your skin is

providing enough moisture through your perspiration to keep the electrodes wet. However, if

the concentration of salts in your perspiration is not high enough to conduct electrical impulses

and send them to the receiver, your heart rate reading will appear erratic or not appear at all.

Some people cannot use the heart rate feature because they do not have the proper body

chemistry.

•

Do not use the chest strap if you are taking any medication or have a cardiac pacemaker.

Inaccurate heart rate readings can occur due to medication or electrical impulses from the

cardiac pacemaker.

•

Stretching or bending the electrode strips on the chest strap may cause the strips to lose their

conductivity. Handle the chest strap with care.

After extensive use, the chest strap (transmitter) may wear out, causing inaccurate heart rate

readings. With every use, check the strap for excessive wear and replace it if necessary. See

Obtaining Service in the maintenance section of this manual.

Precor treadmills are designed for the enjoyment of the serious runner as well as the dedicated

walker. By following the above precautions and using good common sense, you will have many safe

and pleasurable hours of healthful exercise with your Precor treadmill.

Information Regarding Use in the U.S.A. and Canada

Federal Communications Commission, Part 15

The M9.21i or M9.21si treadmill has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. The M9.21i or M9.21si treadmill

generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance

with the owner’s manual instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation.

If the M9.21i or M9.21si treadmill does cause harmful interference to radio or television reception,

which can be determined by turning the M9.21i or M9.21si treadmill OFF and ON, you are encour-

aged to try to correct the interference using one or more of the following measures:

•

Reorient or relocate the receiving antenna for your TV, radio, VCR, etc.

Increase separation between the M9.21i or M9.21si treadmill and the receiver (TV, radio, etc.).

Connect the M9.21i or M9.21si treadmill into a different power outlet—on a dedicated circuit

different from the one used by the receiver (TV, radio, etc.). No other appliance should be

plugged into the same power outlet that the treadmill is connected to.

•

Consult your dealer or an experienced radio/TV technician for help.

WARNING

Per FCC rules, changes or modifications not expressly approved by Precor, could void the user’s

authority to operate the equipment.

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Canadian Department of Communications

“This digital apparatus does not exceed the (Class B) limits for radio noise emissions from digital apparatus

set out in the Radio Interference Regulations of the Canadian Department of Communications.”

“Le présent appareil numérique n’émet pas de bruits radioéélectriques dépassant les limites

applicables aux appareils numériques (de la class B) prescrites dans le Règlement sur le brouillage

radioélectrique édicté par le ministére des Communications du Canada.”

Grounding Instructions

The M9.21i or M9.21si Low Impact Treadmill must be grounded. If it should malfunction or break

down, grounding provides a path of least resistance for electric current which reduces the risk of

electrical shock. The treadmill is equipped with a power cord having an equipment-grounding

conductor and a grounding plug. The plug must be inserted into an appropriate outlet that is

properly installed and grounded in accordance with all local codes and ordinances.

Diagram A

Proper grounding plug and

power outlet for 120v

connection

DANGER

Improper connection of the equipment-grounding conductor can result in a risk of electric shock.

Check with a qualified electrician or service person if you are in doubt as to whether the treadmill is

properly grounded. Do not modify the plug provided with the treadmill—if it doesn’t fit the outlet,

get a proper outlet installed by a qualified technician.

The treadmill is for use on a nominal 120-volt circuit (refer to the WARNING below and to the Installa-

tion Requirements on page 9) and has a grounding plug that looks like the plug illustrated in Diagram

WARNING

This product is rated for use on a circuit having a nominal rating of 120 volts, 15 amps and is

factory-equipped with a specific electric cord and plug to permit connection to a proper electric

circuit. Make sure that the product is connected to an outlet having the same configuration as the

plug. No adapter should be used with this product. If the treadmill must be reconnected for use on

a different type of electric circuit, the reconnection should be made by qualified service personnel.

ATTENTION: Haute Tension

Débranchez avant de réparer

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Table of Contents

Before You Begin ............................................................ 1

Unpacking the M9.21i or M9.21si Low Impact Treadmill................. 1

Setting Up the Low Impact Treadmill ............................ 3

Installation Requirements ............................................................... 3

Assembly Instructions ..................................................................... 3

Checking the Alignment of the Running Belt................................... 8

Using the Low Impact Treadmill .................................... 9

Locating the ON and OFF Switch ................................................... 9

Using the Magnetic Safety Key ....................................................... 9

Understanding the Electronic Console. ......................................... 10

Displays on the Electronic Console............................................... 10

Keys on the Electronic Console .................................................... 11

Customizing the Display ............................................................... 12

Changing the Display to U.S. Standard or Metric

Turning the Smart Rate Display On or Off

Selecting the TIME or DISTANCE prompt

Working Out on the Low Impact Treadmill ................. 13

Using the Quick Start Feature....................................................... 15

Retrieving the Previous Workout Program .................................... 15

Pausing Your Workout .................................................................. 15

Cooling Down After a Workout...................................................... 15

Ending Your Workout .................................................................... 15

Changing the Interval Course Profile ............................................ 16

Using the Weight Loss Program ................................................... 17

Using the Manual Course Program ............................................... 18

Using the Random Course............................................................ 18

Using a Preprogrammed Course on the M9.21si .......................... 18

Creating Custom Courses on the M9.21si .................................... 19

Deleting Custom Courses on the M9.21si..................................... 19

Using the Precor Heart Rate Option ............................ 20

Wearing the Chest Strap Transmitter............................................ 20

Utilizing the Heart Rate Interactive System................................... 21

Using the Heart Rate Course ........................................................ 21

Correcting Inconsistent Heart Rate Readings ............................... 22

Getting the Most Out of Your Workout........................ 23

How Hard Should I Exercise? ....................................................... 23

How Long Should I Exercise? ....................................................... 25

How Often Should I Exercise? ...................................................... 25

Maintaining the Low Impact Treadmills ...................... 26

Cleaning the Equipment................................................................ 26

Changing the Battery in the Chest Strap....................................... 26

Storing the Chest Strap................................................................. 27

Aligning the Running Belt.............................................................. 27

Adjusting the Tension of the Belt .................................................. 28

Obtaining Service.......................................................................... 29

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Before You Begin

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.

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:

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.

“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.

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.

“WARNING:” Provides instructions to prevent

electrical damage to the equipment and prevent

injuries to yourself or others.

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.

“DANGER:” Indicates steps you must take to

prevent electrical shock.

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

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.

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.

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Diagram 1

Hardware Kit.

After unpacking the treadmill, open the hardware kit (refer to Diagram 1) and make sure that you

have the following items:

(A) four frame-to-base plate bolts

(B) two water bottle cage mounting bolts

(D) four split star washers—place on frame-to-base bolts

(E) four internal star washers—2 for lower handrail clamps/2 for mounting water bottle cage

(F) one 5/16" hex key—frame-to-base bolts

(G) one 1/4" hex key—belt tracking and tension adjustment

(H) one 3/16" hex key—upper handrail bolts

( I ) one 5/32" hex key—lower handrail clamp and water bottle cage

(J) two lower handrail clamps

(K) one magnetic safety key assembly

(L) one water bottle cage

If any items are missing, contact the dealer from whom you purchased the treadmill or call

1-800-4-PRECOR for the dealer nearest you.

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Setting Up the Low Impact Treadmill

You do not need any special knowledge or experience to set up a M9.21i or M9.21si treadmill.

However, you must review and follow the instructions in this manual. If you do not assemble and

use the treadmill according to the following guidelines, you might void the Precor limited warranty.

Installation Requirements

Follow these installation requirements when installing the treadmill:

•

Acquire the appropriate tools. In addition to the tools supplied in the hardware kit, you will

need a phillips head screwdriver to remove the hood from the treadmill.

•

Fill out and mail the limited warranty card. The serial number is printed on a label located

underneath the treadmill on the left, rear corner of the running bed. Write the serial number

onto the limited warranty card and in this manual before assembling the treadmill. Refer to

Obtaining Service.

•

Set up the M9.21i or M9.21si treadmill on a solid, flat surface. Do not install the treadmill

on deeply padded, plush, or shag carpeting due to possible damage to the carpet and

machine. If the treadmill is installed in a carpeted area, place a piece of heavy cardboard,

plywood, or other solid, smooth, flat surface under the unit. If the floor is not even, the

running belt will not track properly. Refer to Checking the Alignment of the Running Belt.

•

Locate the treadmill at least 4 feet from walls and furniture. Be sure to provide ample space

in front of the machine to allow easy access to the ON/OFF switch. Open space to the sides

and back of the machine makes for a safer mount and dismount and easier belt adjustment.

CAUTION: Do not remove or otherwise bypass

the 3-prong plug with an adapter or extension

cord in order to use a non-grounded outlet.

Electrical damage can occur if the treadmill is

connected to an improper power source.

Use a standard 120-volt household outlet. The M9.21i or M9.21si treadmill is for household

use only. Precor recommends plugging the treadmill into an outlet that is connected to a

dedicated 20 amp house circuit breaker. A 20 amp circuit breaker inside the treadmill also

helps protects the electrical and electronic components from sustained overloads. An integral

3-prong, grounded plug meets safety requirements and protects the machine.

Assembly Instructions

To assist you in the assembly of the treadmill, the items in the hardware kit shown in Diagram 1,

correspond to a particular letter in the alphabet. These letters appear throughout the assembly

instructions. If necessary, refer to Diagram 1 while performing the steps below.

To assemble the M9.21i or M9.21si treadmill, take the following steps:

1. Locate the power switch at the front of the treadmill. Make sure that the power switch is in the

OFF (O) position and unplug the treadmill’s power cord from the power outlet. Do not

assemble the M9.21i or M9.21si treadmill if it is plugged into a power source.

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Diagram 2

Remove the

hood.

Hood

Screw

Base

Wheel

2. Remove the treadmill’s hood using a phillips head screwdriver. Unscrew all six screws

and set them aside. See Diagram 2. Grasp both sides of the hood with your hands and pull up

to remove the hood from the base.

Diagram 3

Plug

connector

into lower

board.

Lower board

Proper tab alignment on receptacle

Lower board’s cables

Front plate

Ribbon cable connector

Upright column support

3. Set the upright column support assembly on the front plate. Route the ribbon cable under the

lower board’s cables. See inset in Diagram 3.

4. Align the tab on the ribbon cable connector with its counterpart located on the receptacle on

the lower board. Plug the connector into the receptacle. See Diagram 3. The plastic flanges on

the receptacle should clip onto the connector when you plug it in. Since the connector is

designed to engage in one direction only, do not force the connector into the receptacle.

5. Place a lock washer (D) onto each frame-to-base bolt (A). (The bolts and washers are found in

the hardware kit.) Set the bolts and washers within easy reach of the upright column support.

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Diagram 4

Secure the

upright

column

support.

Upright column

Front plate

Hex key (F)

Frame-to-base bolt (A)

Motor

6. Secure the upright column support to the base by lifting it into position onto the base

mounting plate. See Diagram 4. Align the bolt holes and hold onto the upright column support

as you insert the frame-to-base bolts and finger tighten. Alternately tighten each bolt using the

5/16" hex key (F) provided.

7. With the upright column support secure, replace the hood by aligning the screw holes

on the hood with the holes in the base frame. Tighten the screws securely using a phillips

head screwdriver.

8. Loosen the bolts in the upper handrail clamp using the 3/16" hex key (H). You do not need to

remove the bolts.

Diagram 5

Secure the

handrails

into upper

handrail

clamp.

Electronic console

Handrail clamp

Handrail clamp bolt

Upper handrail

9. Insert the upper end of a handrail into the upper handrail clamp. Using one hand, apply

pressure on the portion of the handrail going into the clamp while, with the other hand, lift

and lower the base of the handrail. This rotating motion helps move the handrail into place.

The handrail is properly positioned when the black foam wrap touches the clamp as shown in

Diagram 5. Repeat this step for the other handrail.

Important: Do not fully tighten the upper handrail clamp bolts until you have installed the

lower handrail clamps. The instructions are on the next page.

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Diagram 6

Attachlowerhandrails.

Handrail mounting hole

Handrail

Side rail

Handrail nut plate

Guide rail

Base of treadmill

Lower handrail clamp

10. To mount the lower portion of the handrails, take the lower handrail clamps (J), two of the

internal star washers (E), and lower handrail clamp bolts (C) out of the hardware kit. Refer to

Diagram 6 while taking the following steps:

Note: Perform these steps on one side of the treadmill before proceeding to the other side.

a. Put one internal star washer (E) on each of the lower handrail clamp bolts (C). Place the

bolts on either side of the treadmill near the location of the lower handrail.

b. Place the lower handrail inside the lower handrail clamp (J). Slide the handrail nut plate

along its guide rail until the hole in the nut plate is in line with the handrail clamp’s

mounting hole.

Diagram 7

Secure the lower handrails.

Deck

Handrail

Base and side rail assembly

Nut plate

Lower handrail clamp

Bolt

Lower handrail assembled

c. Guide the lower handrail clamp onto the nut plate making sure that the flanges on the nut

plate are inside the lower handrail clamp. See Diagram 7. Slide the clamp and nut plate

along the guide rail to find the equilibrium point for the handrail.

d. To secure the handrail inside the clamp, use the 5/32" hex key ( I ) provided. Do not

overtighten the bolt or damage may occur to the clamp.

Note: Periodically inspect the handrail clamp bolts and, if necessary, tighten the handrail

clamp bolts using the 5/32" hex key ( I ) provided.

e. Proceed to the other side of the treadmill and follow steps “a” through “d” to complete

the installation of the lower handrails.

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Diagram 8

Install the water

bottlecage.

Electronic console

Water bottle cage

Water bottle cage mounting location

Bolt (B) with washer (E)

Hex key ( I )

11. Return to the upper handrail clamp, check to see that the foam on the handrails touches the

edge of the clamp, readjust the handrails if necessary, and tighten the bolts securely using the

3/16" hex key (H) provided.

12. Install the water bottle cage by placing one internal star washer (E) on each of the mounting

bolts (B). Position the cage onto the mounting hole locations and insert the bolts. See

Diagram 8. Securely tighten the bolts using the 5/32" hex key ( I ). Place a water bottle inside

the cage as shown in the inset in Diagram 8.

13. Plug the treadmill into a standard 120v household outlet. Make sure that no other appliances

use the same circuit as the treadmill. If you need to move the treadmill, ask for assistance

from one or more persons. Roll the treadmill on its front wheels to the new location by lifting

the rear end of the unit.

Important: Before you can roll the treadmill on its front wheels, set the incline at 3% or more.

Follow steps 1 through 4 in Checking the Alignment of the Running Belt, and then, adjust the

incline to a minimum of 3%. Turn OFF the treadmill and unplug it before moving it.

14. Continue on to Checking the Alignment of the Running Belt to complete the installation of the

M9.21i or M9.21si treadmill.

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Checking the Alignment of the Running Belt

The belt is aligned at the factory before shipment. However, during shipment or by using the

treadmill on an uneven surface, the belt might move off center. Proper belt alignment is

important because it allows the belt to remain centered and assures smooth operation. Take the

following steps to check the alignment:

1. Insert the magnetic safety key (K) into the opening on the electronic console. Locate the

ON/OFF (I/O) switch at the front of the treadmill and turn ON (I) the treadmill.

CAUTION: Do not walk on the running belt

during this procedure.

2. Stand beside the treadmill and press QUICK START. The running belt starts automatically

after the display scrolls the message, “Belt Starting 3, 2, 1,...”

CAUTION: If you hear or notice any chafing or

the running belt appears to be getting damaged,

stop the running belt immediately by pressing

the STOP key. Contact a Precor Service

Representative.

3. Continue standing next to the treadmill and press the SPEED ▲ key to maintain the running

belt at a speed of 3 miles per hour (5 kph).

4. Walk to the back of the treadmill and observe the belt for a few minutes as it moves.

If the running belt,…

Then,...

tracks centered on the running surface

the belt is functioning correctly and no

adjustment is necessary.

runs or drifts off center

you need to adjust the belt; see Aligning the

Running Belt in Chapter 7.

Important: If you notice that the belt needs alignment, make the adjustments at once.

Failure to do so might cause the belt to tear or fray which is not covered by the Precor

limited warranty.

5. To stop the running belt, press STOP and remove the safety key. Store the safety key in a

safe place to prevent unauthorized use.

If the belt is functioning correctly, the M9.21i or M9.21si treadmill is ready to use.

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Using the Low Impact Treadmill

As simple as using the M9.21i or M9.21si Low Impact Treadmill might seem, you should read this

section so that you can use the treadmill safely and effectively. This section of the owner’s manual

provides the basic information you need for exercising on your treadmill, including the following:

•

locating the ON and OFF switch

using the magnetic safety key

reviewing features on the electronic console

customizing the display (changing to U.S. standard or Metric,

displaying Smart Rate, and selecting the TIME or DISTANCE prompt

Note: Instructions explaining how to use the Precor Heart Rate Option and information regarding

the Heart Rate Course appear in the next section: Using the Precor Heart Rate Option.

Locating the ON and OFF Switch

Use the ON/OFF (I/O) power switch to turn the treadmill ON “I” or OFF “O”. This switch is located at

the front of the treadmill, near the power cord.

Note: The running belt will not move until the magnetic safety key is inserted into the electronic

console. Refer to the instructions below for more information about the safety key.

Using the Magnetic Safety Key

CAUTION: Before each workout, always attach

the magnetic safety key’s clip to your clothing

at your waistline.

The magnetic safety key lets you stop the treadmill’s running belt. Use this key in an emergency or

when finished exercising. Pulling the key out of the console compartment has the same effect as

pressing STOP. To prevent unauthorized use of the treadmill, store the safety key in a safe place.

Diagram 9

Magnetic safety key

Before you can begin a workout, the magnetic safety key must be inserted into the electronic

console as shown in Diagram 9. The treadmill’s running belt will not move until the safety key is

inserted and secure inside the electronic console.

Important: Do not force the safety key into position, it should slide easily into place within the

electronic console compartment. Applying too much pressure to the connection could break a

safety key component and void the Precor limited warranty.

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Understanding the Electronic Console

The electronic console lets you control your M9.21i or M9.21si treadmill session. As you work out,

the electronic display provides constant feedback about your progress. Information about distance

covered, elapsed time, speed, total caloric burn, degree of incline, and heart rate (if you use the

Precor Heart Rate Option) is available at any time. When you use the Precor Heart Rate Option, the

chest strap that you wear transmits a signal which is picked up by the M9.21i or M9.21si software

and displayed numerically (when the Heart Rate indicator is lit).

The M9.21si also provides several preprogrammed courses and the ability to design your own

custom courses (CUST1 or CUST2). For more information, refer to Creating Custom Courses on

the M9.21si.

Displays on the Electronic Console

Indicator lights appear to show you which feature is being displayed. When you are working out,

the electronic console display presents each feature consecutively—this is called scanning.

Diagram 10 illustrates the electronic console display. Its features and keys are explained on the

following pages.

Diagram 10

M9.21i electronic

console display

SMART RATE

Above Zone

Cardiovascular

Weight Loss

Below Zone

Distance

Time

Speed

Calories

85%

70%

55%

Incline

Heart Rate Ð You must wear the Precor heart rate monitor to activate the Heart Rate display.

Scan

PROGRAMMED COURSES

Manual Change speed / incline to vary your workout

Interval Course

Weight Loss Course*

CAUTION

Keep hands and clothing away from bed, belt, and rear roller when the treadmill is in operation.

Do not allow children and people unfamiliar with treadmill operation on or near the treadmill.

Never stand on the belt when starting the treadmill. Stand with your feet on the side platforms.

mph and slower.

Alternating rest and work intervals maximize aerobic conditioning.

Never attempt to turn around on the moving belt. Step onto the belt only at speeds

Read owner's manual before operating this treadmill.

complete physical examination by your physician.

28 minute program maximizes caloric burn.

Before beginning any fitness program, you should have

Based on research at the Cooper Institute for Aerobics Research.

Consult your physician for the heart rate appropriate for your fitness level.

If you feel faint or dizzy, stop exercising immediately.

Heart Rate Course* Maintains heart rate within your target zone by increasing/decreasing incline.

WARNING: Remove safety key when not in use and store out of reach of children.

Random Course

Presents

different hill profile each time.

Precor heart rate monitor required for these courses.

INCLINE

SPEED

ENTER

QUICKSTART

CHANGE

Hold to Reset

STOP

Note: Informative messages scroll across the display and prompt you to enter specific information

before a workout. These messages request information and action, or explain problems that may

arise while you are using the treadmill. Some problems you can solve. Other problems may require

a qualified service technician. If you are unsure about an error message, please call a Precor

authorized service center. For the service center nearest you call, 1-800-4-PRECOR.

SMART RATE:^®When the optional Precor heart rate receiver has been properly installed in the

treadmill and you wear the Precor Heart Rate Option’s chest strap, a blinking segment in the bar

graph appears on the left of the display. If you have entered your age (completed during the setup

prompts), the blinking segment shows you the zone that your heart rate is in: either Weight Loss or

Cardiovascular.

Important: Smart Rate and HEART RATE displays only appear when the Precor heart rate receiver

is installed in the electronic display and the chest strap transmitter is worn. Smart Rate does not

appear when you use the Quick Start key. If the Smart Rate segment appears, but does not blink, it

means that a receiver is installed, but that you are not wearing the chest strap transmitter or it is

not working properly. To correct transmitter problems, refer to your Precor Heart Rate Option

Owner’s Manual or to Obtaining Service in this manual.

DISTANCE: The distance you have travelled appears once you begin a workout. Distance can

appear in miles or kilometers. If you wish to change the display, you can follow the instructions

found in Customizing the Display.

TIME: During your workout, a time (00:00) display appears automatically and stops whenever you

pause or stop the running belt. As you work out, you will notice that the time starts at zero and

counts up when you use distance-based courses. It counts down when in the timed courses and

alternates between counting up and counting down during the Interval and Weight Loss programs.

Time appears in minutes and seconds. However, should you exceed 60 minutes (during a single

workout), the time display converts to hours and minutes.

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SPEED: The speed at which you are travelling appears in this display. Your speed can appear in

miles per hour (0.5 to 10 mph) or kilometers per hour (0.8 to 16 kph). If you wish to change the

display, you can follow the instructions found in Customizing the Display.

CALORIES: When you enter your accurate weight, the number of calories you are burning while

you workout appears in the display. At the end of the workout, the estimated number of calories

burned appears in the display. The calorie calculation is dependent on the weight that you enter

during the setup prompts. An accurate weight selection results in a more accurate calorie count.

Note: If you press the QUICK START key, the calorie count is based on a 150 lbs (68 kg) person.

INCLINE: The M9.21i or M9.21si treadmill provides inclines from 0% to 15%. You can change the

incline and decrease or increase the level of your workout by pressing the INCLINE ▼▲ keys.

HEART RATE: The heart rate display lets you monitor your heart rate and, in the Heart Rate

Course (HRC), keeps you within your training zone. You must purchase the Precor Heart Rate

Option and wear the chest strap transmitter before your heart rate can appear on the display. For

more information, refer to the section titled Using the Precor Heart Rate Option.

SCAN: When you are working out and the display is in SCAN mode, an indicator light appears

next to the word SCAN. Another indicator light appears next to the feature that is being dis-

played. About every 30 seconds, the indicator light moves sequentially through each field on the

display.

The SCAN indicator can only be highlighted in Manual mode. In any other program, scanning

occurs automatically. To stop scanning and display one feature, press the CHANGE key. Continue

to press the CHANGE key to move the indicator light to the feature you want displayed.

Keys on the Electronic Console

Each key on the electronic console’s keypad provides specific functions. The following information

explains the different uses of the keys from left to right. To locate each key, look at the electronic

console or refer to Diagram 10.

ENTER: When you turn ON the treadmill, several prompts appear before you start your workout.

Each prompt needs to be addressed and then “entered” into the treadmill’s memory by pressing

the ENTER key.

Note: Tapping ENTER successively 3 times when the start-up prompt “ENTER WEIGHT” appears

on the display causes the treadmill to retrieve the last workout program from memory and display

it. Refer to Retrieving the Previous Workout Program.

INCLINE CONTROL ▼▲: The INCLINE arrow keys let you decrease ▼ or increase ▲ the

treadmill’s incline settings from 0% to 15% in Manual mode.

STOP: To pause during your workout, press the STOP key. The running belt stops and the

displays on the console freeze allowing you to review your workout statistics. See Pausing Your

Workout. Tapping STOP twice during a workout program causes the treadmill to access the

Manual mode. Use this feature to incorporate a cool-down period into your workout. See Cooling

Down After a Workout.

HOLD TO RESET: To exit the Manual and Interval programs, press HOLD TO RESET for a few

seconds. The displays clear, your workout statistics are saved and added to the cumulative totals.

Continue to press HOLD TO RESET and the Precor banner appears on the display. You can also use

this key to exit other courses prematurely. See Ending Your Workout.

SPEED CONTROL ▼▲: The SPEED arrow keys let you decrease ▼ or increase ▲ the treadmill’s

speed settings. During a workout, you can decrease or increase the speed of your workout from

0.5 to 10 miles per hour or 0.8 to 16 kilometers per hour. You can also use the SPEED ▼ key to

slow the running belt to a gradual stop.

QUICK START: Pressing QUICK START at the Precor banner or during the setup prompts causes

a “Belt Starting 3, 2, 1,...” message to scroll across the display. The running belt begins

moving at 1 mph and the treadmill enters Manual mode. A default weight of 150 lbs (68 kg) is

used to calculate the total caloric burn. (For more information, refer to Using the QUICK START

Feature and Using the Manual Course Mode.

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CHANGE: In Manual mode, the CHANGE key lets you select the feature that you want to appear on

the display. The feature remains displayed until you press CHANGE again. In other programs,

pressing the CHANGE key activates the scan function. Starting from the top of the display, each

feature is displayed sequentially and then, the course profile reappears. Note that HEART RATE

only appears if you are using the Precor Heart Rate Option.

Customizing the Display

The M9.21i or M9.21si treadmill can display speed in either miles per hour (mph) or kilometers

per hour (kph) and distance in miles or kilometers. When the M9.21i or M9.21si is shipped from

the factory, it is set to display to U.S. Standard units of measure (mph and miles). You can also

choose to turn the Smart Rate display on or off and change whether the TIME or DISTANCE

prompt appears after you choose a preprogrammed course. You can easily change an of the

settings by taking the following steps:

Note: The M9.21i or M9.21si treadmill will retain your selection even when it is turned OFF and

unplugged. You can change your selection at any time by repeating the following steps.

1. Insert the magnetic safety key into the electronic console.

2. Turn ON the treadmill using the power switch located at the front of the hood.

3. At the Precor banner, press the STOP key, followed immediately by the QUICK START key,

then the SPEED ▼ key, and lastly the SPEED ▲ key. (The numbers 3, 4, 5, 6 appear

sequentially on the display as you press the associated key.) The prompt, “PRESS ▲ FOR

MPH OR ▼ FOR KPH” appears on the display.

Important: If the QUICK START key is not pressed within 1 second after pressing the STOP

key, the display returns to the Precor banner. You will need to begin again.

4. Any ▼ or ▲ key lets you alternate between the prompts. Press one of the ▼ or ▲keys.

5. A prompt “SMART” or “NO SR” appears on the display. Any▼ or ▲ key lets you alternate

between the prompts to select whether you want the Smart Rate display to appear (SMART)

or not appear (NO SR) on the display.

6. Two messages scroll across the display: one confirms your mph or kph selection and the

other states, “PUSH ▲ FOR DISTANCE OR ▼ FOR TIME OR ‘RESET’ TO ASK.” Press the

appropriate key after answering one of the following if/then scenarios:

Note: When using a preprogrammed course (M9.21si only), you can measure your workout

by distance or time. You see the “SELECT DISTANCE” or “SELECT TIME” prompt after you

enter a course selection. The default measurement is distance.

Ifyouwant,...

Then,...

your workout measured by distance

press the ▲ key

your workout measured by time

press the ▼ key

the option of selecting time or

distance prior to each workout

press HOLD TO RESET (STOP)

After you press an arrow key, a message scrolls across the display

confirming your selection.

7. The changes have been retained in the treadmill’s memory. Continue with your workout or

turn OFF the treadmill. If you turn OFF the treadmill, be sure to store the safety key in a safe

place to prevent unauthorized use.

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Working Out on the Low Impact Treadmill

Before using your treadmill, we recommend that you follow these instructions and go through a

preliminary demonstration of the treadmill.

When using the treadmill, follow these general guidelines:

•

At the beginning of a workout, take several minutes to bring your heart rate into your training

zone, shown in Diagram 15 in Chapter 6.

After your workout, walk slowly for several minutes to cool down your body and lower your

heart rate. Use the cool-down feature on your treadmill.

Using the clip provided, attach the magnetic safety key to your clothing at your waistline

before each workout. Then, if you encounter difficulties or want to end your workout, you can

easily stop the running belt by pulling on the cord.

•

Before and after a workout, gently stretch your lower body and back to help prevent stiffness

or soreness.

A variety of exercise options are available on the M9.21i or M9.21si. The course profiles on the

M9.21i (refer to the label on the electronic console) provide workouts from manual mode to

preprogrammed, customized courses, and heart rate interactive courses. (To use the Smart Rate

and Heart Rate features, you will need to purchase the Precor Heart Rate Option.)

Quick Steps to Working Out

To work out on the M9.21i or M9.21si, take the following steps:

Put on chest strap (optional).

1. For Smart Rate or your HEART RATE to appear on the display, the heart rate receiver must be

installed in the electronic console display and you need to wear the chest strap transmitter.

Refer to Wearing the Chest Strap Transmitter to learn how to properly use the chest strap.

Insert Safety Key.

Turn ON treadmill.

2. Insert the magnetic safety key into the electronic console compartment.

3. Locate the ON/OFF (I/O) switch at the front of the treadmill and turn ON the treadmill. The

Precor banner scrolls across the electronic console display.

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Straddlebelt.

4. Straddle the running belt with your feet firmly planted on the right and left staging platforms.

(Stand close enough to the electronic console so that you can extend your arms to easily

touch the keys.)

Attach safety clip to clothing.

5. Using the clip provided, securely attach the magnetic safety key to your clothing near your

waistline where it will not interfere with your workout.

Important: To retrieve the last course used, rapidly tap the ENTER key three times. Or, to

display the manual mode’s course profile, press QUICK START. When you use QUICK START,

a default weight of 150 lbs (68 kg) is used for calculating the CALORIES display. Refer to

Using the QUICK START Feature.

Enter Weight or press Quick Start.

6. If you do not use QUICK START or retrieve the last course or program, press any ▼ or ▲ key

to change the weight. (The weight increases and decreases in 5-pound or 2 kg increments) To

increase the accuracy of the calorie count that appears on the display, select a weight that is

closest to your actual weight. Press ENTER.

Enter AGE.

7. The AGE prompt appears if the Precor Heart Rate Option receiver is installed in the

electronic console display. If you wish to purchase this valuable option package, contact the

dealer nearest you by calling, 1-800-4-PRECOR.

Select Course.

8. At the “SELECT COURSE” prompt, choose your workout mode:

M9.21i

—

Manual (MAN’L), Interval (INTV), Weight Loss (WT.LS.),

Heart Rate Course (HRC) or Random

Important: Before working out, review the

information regarding the different

M9.21si — all the programs mentioned above plus the preprogrammed courses shown on

the display label.

M9.21i or M9.21si programs and their

operation. Refer to pages 15 through 22.

Press the ▼ or ▲ key until you see the desired mode or course number appear on the

display, then press ENTER.

Start working out.

9. Depending on the program you select, you may be prompted to answer more questions or

press the SPEED ▲ key to begin your workout. Hold onto the handrail with one hand while

you press SPEED ▲ with the other hand. Step onto the running belt while the speed is at or

below 1 mph (1.6 kph). Once you are comfortable with the walking or running speed, you

can remove your hands from the handrail.

Use the optional Smart Rate and

Heart Rate displays to keep your

heart rate in your target zone:

cardiovascular or weight loss.

(Pause)

To pause during your workout session before finishing the selected program, press the

STOP key. The displays on the console freeze. See Pausing Your Workout or Ending Your

Workout for more information.

To purchase the Precor Heart

Rate Option or Smart Weights,

call your local dealer.

Note: Optional hand weights, called Precor Smart Weights, are available from your local

dealer. Precor Smart Weights provide 1- or 2-pound hand weights with the added conve-

nience of remote control. The remote control lets you change your speed or incline and stop

the running belt. Precor Smart Weights give you control of your treadmill’s electronic console

functions while you enjoy the added benefit of an upper body workout. For more information

call your local dealer. To locate the dealer nearest you call, 1-800-4-PRECOR.

End workout.

10. When you are finished exercising, hold onto the handrail and press STOP. (You can also

press SPEED▼ until the running belt stops.) You can then review your workout results as

the display scans through DISTANCE, TIME, and CALORIES. (HEART RATE appears if you

are wearing the Precor chest strap.)

(Cool down)

Note: Always allow yourself a cool-down period of a few minutes before bringing the running

belt to a complete stop. Cooling down after your workout helps reduce muscle stiffness and

soreness by transporting excess lactic acid out of the working muscles. It also helps your

heart rate return to its normal (non-exercising) state. You can access the manual mode

(MAN’L) from any program by tapping STOP twice in quick succession. Manual mode enables

you to change the speed and incline and adapt a cool-down period into your workout.

Review workout statistics.

11. If desired, after reviewing the displays, reset them to zero by pressing HOLD TO RESET for

several seconds.

(Press HOLD TO RESET)

Remove Safety Key. Turn OFF the

treadmill.

12. Detach the safety clip from your clothing and remove the magnetic safety key from the

electronic console. Turn OFF the treadmill.

Store Safety Key in a secure place.

13. To prevent unauthorized use, store the safety key in a safe place.

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Using the QUICK START™ Feature

CAUTION: Hold onto the handrails when you

press QUICK START. The running belt starts

automatically at 1 mph after the display scrolls

the message “Belt Starting 3, 2, 1,..”

The words “quick start” imply that you can start your workout immediately. Once you insert the

magnetic safety key and attach the safety clip to your clothing, the QUICK START feature on the

M9.21i or M9.21si treadmill allows you to bypass the setup prompts and access manual mode. The

weight setting defaults to 150 pounds (68 kg) so all calorie calculations and their associated

displays are based on a body weight of 150 pounds (68 kg). The Smart Rate display will not work

when you use the QUICK START key.

Note: Any prompts that appear after the “SELECT COURSE” prompt require your input before you

can proceed. You can press QUICK START at any prompt and access manual mode features.

However, QUICK START is disabled once you enter a program and begin your workout.

Retrieving the Previous Workout Program

To retrieve the previous workout program, simply tap the ENTER key successively three times

while the prompt “ENTER WEIGHT” is being displayed. Note that if someone else has exercised on

the treadmill after your workout, whatever program he or she used will be the one that is restored

from memory.

Pausing Your Workout

You can pause at any time during your workout. Use this feature to rest or take a short break. To

pause while working out, press the STOP key. The running belt stops. Remove the safety key clip

and straddle the running belt so that you can safely step off the treadmill. Your workout statistics

freeze and remain displayed on the console until you resume your workout.

Do not rely on the Pause feature as a way to end your workout. If you wish to end your workout,

follow the instructions in Ending Your Workout.

To resume your workout, straddle the running belt, attach the safety key clip to your clothing,

press the SPEED ▲ key to start the running belt, hold the handrail, and step onto the running belt

while the speed is at or below 1 mph. Your workout statistics continue from where you left off.

Continue to press the SPEED ▲ key, to increase the speed to a comfortable level. Once you are

comfortable with the walking or running speed, you can remove your hands from the handrail.

Cooling Down After a Workout

Cooling down after your workout is important because it helps reduce muscle stiffness and

soreness by transporting excess lactic acid out of the working muscles. Cooling down for at least

3 minutes helps provide a smooth transition that allows your heart rate to return to its normal

(non-exercising) state.

You can cool down after a workout by accessing Manual mode (MAN’L). Tapping STOP twice in

quick succession accesses MAN’L mode from the preprogrammed courses (M9.21si only).

Ending Your Workout

To end your workout, take the following steps:

1. Hold onto the handrail and press the STOP key or press the SPEED ▼ key until the running

belt slows to a gradual stop. The displays on the console freeze which lets you review your

workout statistics.

2. Continue to press STOP (HOLD TO RESET) for a few more seconds to add your workout

statistics to the cumulative totals and return to the Precor banner.

3. Straddle the running belt and step off the treadmill.

4. To prevent unauthorized use, remove the magnetic safety key from inside the electronic

console and store it in a safe place. Turn OFF the treadmill.

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Changing the Interval Course Profile

Interval training provides numerous benefits. Since interval training segments the workout into

smaller components, a 20- or 30-minute workout seems to pass more quickly. In addition, studies

have shown that it is a more efficient method for achieving aerobic benefits—you start seeing

improved cardiovascular fitness much sooner with less effort. Studies also show that people who

interval train are more likely to stick with their fitness program.

The interval course on the M9.21i or M9.21si treadmill lets you set the course intervals according

to your training regimen. It alternates between 60 seconds of “Rest” and 60 seconds of “Work.”

During the Rest interval, you can walk or jog slowly; during the Work interval, you can stride

quickly or run. You set the speed and incline for the first rest and work interval and the software

takes over from there, repeating the intervals throughout the course until you press the STOP key.

At any point during the workout, you can change the speed and incline of the current interval. For

example, if 8 mph is a little faster than you prefer during a Work interval, simply use the SPEED ▼

key to reduce speed. The software remembers the new speed for the next Work interval.

If you have purchased the Precor Heart Rate Option and installed the heart rate receiver, you can

monitor your workout using the Smart Rate and HEART RATE displays.

Note: If you pause your workout during an Interval mode, you must reset the speed of the mode

you were in when you paused your workout. For example, if you paused your workout during the

Rest interval, you must reset the speed for that interval. In this example, you would not need to

reset the speed for the Work interval since it is stilled stored in memory.

Below are some suggestions that may help you incorporate the Interval mode into your workout:

•

If you are starting an exercise program, the Interval mode option can help you increase your

workload gradually. For example, in the beginning, you may simply want to specify the same

speed and incline for both Work and Rest intervals. Then, to increase your effort level, change

to a higher speed and/or incline for your Work interval.

•

If you are training with the goal of maintaining a constant pace when on level ground or grade,

specify the same speed for both Work and Rest intervals. Then, gradually increase the incline

during the Work interval until you can maintain a constant pace.

To use the interval course, follow the steps in Working Out on Your M9.21i or M9.21si Treadmill.

At the “SELECT COURSE” prompt, use the ▼▲ keys to display “INTV,” and press ENTER.

To set the interval for the course, take the following steps:

1. When you see “ENTER REST SPEED & INCLINE” scroll across the display, stand on the

running belt with one hand on the handrail, prepared to start walking. With your other hand,

press the SPEED ▲ key until you reach a comfortable rest speed, either running or walking.

Press the INCLINE▼ or ▲ key to specify an appropriate incline. When the desired speed

and incline are displayed, simply continue working out—you do not need to press ENTER.

Once you reach your desired rest speed and incline, the treadmill returns to it at the

beginning of each rest interval, until you change the speed or incline, or end your workout.

2. When “ENTER WORK SPEED & INCLINE” scrolls across the display, specify your work

speed (up to 10 mph). With one hand on the handrail, use the other hand to press the

SPEED ▼ or ▲ keys until the desired work speed is shown. Use the INCLINE▼ or ▲ key to

set the incline. When you are comfortable with the rest and work speeds and inclines, you

can let go of the handrail.

Each rest and work interval lasts 60 seconds. The display automatically counts down to the next

interval. When the count reaches 30 seconds, the display changes and gives information about

distance travelled, time elapsed, speed, calories burned, and percent of incline.

When the treadmill changes intervals, it informs you by scrolling “GOING TO REST SPEED” or

“GOING TO WORK SPEED” across the display.

Using the interval course mode, you can cool down before ending your workout by pressing STOP

twice in quick succession. The treadmill enters Manual Mode, letting you specify the speed of your

cool-down period.

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Using the Weight Loss Program

The Precor Weight Loss Program incorporates the latest findings on fat-burning and weight loss

through exercise. It is based on research at the world-renowned Cooper Institute for Aerobics

Research.

CAUTION: Before beginning any fitness

program, you should obtain a complete

physical examination from your personal

physician.

The Weight Loss Program is similar to the interval course program on your M9.21i or M9.21si

treadmill. The Weight Loss Program provides a 28-minute workout with inclines preset to a

minimum level for the 4-minute rest interval and a maximum level for the 4-minute work interval.

You can adjust the incline during any interval segment. However, changing the incline will reduce

the effectiveness of your weight loss program. Any time you adjust the incline, the software returns

to the default incline of minimum or maximum at the beginning of the next rest or work interval.

The treadmill alerts you of upcoming incline or interval changes by scrolling messages across the

display.

The Weight Loss Program is designed to help you burn the most fat during a 28-minute workout,

while minimizing the risk of discomfort and injury. Performed three or four times a week, the weight

loss mode will help you reach your ideal weight and fitness level quickly and efficiently.

CAUTION: The treadmill may automatically

change incline when you enter a program. Stay

clear of the lift mechanism and hood area until

the treadmill has completed the recalibration

process.

To use the Weight Loss mode, follow the steps found in the section titled Working Out on Your

M9.21i or M9.21si Treadmill. When the electronic console display prompts you to select a course,

use the▼ or ▲ keys to select “WT.LS.” and then, press ENTER.

Note: Be sure to enter your correct weight at the weight prompt. Deviating from your actual

weight reduces the effectiveness of the weight loss program.

Table 1

Perceived Level of Fitness

Speed calculated

in mph & kph

7.3 High

5.8 Medium High

5.0

Medium

4.5 High

3.6 Medium High

3.5

Medium Low

3.1

Medium

2.2

Medium Low

2.1 Low

1.3 Low

KPH

MPH

Set the speed of the treadmill based on your perceived level of fitness (low, medium, or high—

see Table 1). The incline is preset to accommodate your level of fitness.

CAUTION: If you are unsure about your level of

fitness, start at the low speed. Do not increase

your speed beyond 1.3 mph or 2.1 kph.

Remember, always consult your physician

before beginning any new exercise routine.

If you wish to continue the weight loss program at the end of the 28-minute period, press the

SPEED▲. The speed remains constant and the preset 4-minute rest and work intervals continue to

repeat until you press the STOP key. If you want to adjust the speed, press the SPEED▼ or ▲ key

until the desired speed appears in the display.

Always monitor your pulse during and at the end of your workout. If you purchased the Precor

Heart Rate Option and have installed the receiver and are wearing chest strap, you can monitor

your heart rate through the Smart Rate and HEART RATE displays. For the ideal “weight loss”

range, your heart rate should be between 55% and 70% of your maximum aerobic heart rate. It

should never exceed 80% of your maximum aerobic heart rate or go above your training zone.

Refer to Diagram 15 in Getting the Most Out of Your Workout for your appropriate training zone.

Important: If you use the Precor Heart Rate Option, you can adjust the rest or work intervals if your

heart rate is above or below the recommended zones for your age. For the Weight Loss course, try

to maintain your heart rate at the lower end (55% of maximum heart rate) while in the “rest”

intervals and keep it at 70% of maximum heart rate while in the “work” intervals.

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Using the Manual Course Program

CAUTION: Hold onto the handrails when you

press QUICK START. The running belt starts

automatically at 1 mph after the display scrolls

the message “Belt Starting 3, 2, 1,..”.

Manual mode lets you use the M9.21i or M9.21si treadmill for an indefinite period of time while

controlling the speed and incline.

You can choose the Manual course program in two different ways:

•

pressing QUICK START at the Precor banner or any set-up prompt displays the manual course

profile. The weight setting defaults to 150 pounds (68 kg) so all calorie calculations and their

associated displays are based on a body weight of 150 pounds (68 kg). The Smart Rate

displays do not work when you use QUICK START. For more information, refer to Using the

QUICK START Feature.

•

entering your weight and selecting the “MAN’L” course. At your next workout (if no one else

has used the treadmill), rapidly tap ENTER three times to access this same program.

When you choose the Manual program, the program’s course profile appears in the display and

shows a flat constant course. The INCLINE▼ or ▲ keys change the incline and the SPEED▼ or ▲

keys affect the speed of the running belt.

Important: To end a workout in Manual mode, you need to press STOP or press the SPEED ▼

key until the running belt stops. Press HOLD TO RESET for a few seconds to clear the display.

Using the Random Course

Choosing a random course provides variable course profiles. Each course profile is “randomly”

selected by the M9.21i or M9.21si software. Every time the Random course is selected, a different

course profile appears.

Using a Preprogrammed Course on the M9.21si

CAUTION: If this is the first time you have

operated this treadmill, DO NOT STAND on the

running belt until you become familiar with

treadmill’s operation. Be sure to read and follow

the general guidelines found in “Working Out

on Your M9.21 or M9.21s Treadmill” prior to

using the treadmill.

To use a preprogrammed course, follow the instructions below. Remember, when you use the

electronic console, hold onto the handrail to maintain your balance. You should also use the

handrail whenever you speed up, slow down, or stop the treadmill.

The M9.21si is equipped with six preprogrammed courses and two custom courses that vary in

distance, time, and incline. Refer to the label on the electronic console for a representation of the

course profiles.

To use the preprogrammed courses, follow the steps in Working Out on the M9.21i or M9.21si

Low Impact Treadmill and add the following variation.

CAUTION: The treadmill may automatically

change incline when you enter a program. Stay

clear of the lift mechanism and hood area until

the treadmill has completed its recalibration.

1. At the “SELECT COURSE” prompt, enter a program name “WALK” or “RUN.”

The WALK courses combine .05-mile segments with a set series of inclines. The RUN courses

combines .1 mile segments. The percent of incline and the frequency with which inclines are

encountered indicate the difficulty of the course. For example, WALK EASY takes the user

through inclines ranging from 0 to 3 percent grade, while RUN ADV uses inclines in the

minimum to maximum range on a more frequent basis. The software simply repeats the

segments until the distance or time limit you set is reached, or you press the STOP key.

Note: If you do not press ENTER to select a course, after 10 seconds the prompt “PRESS

ENTER TO BEGIN” appears. This prompt continues to scroll across the display every few

seconds until ENTER is pressed.

2. At the “SELECT MILES (kilometers)” prompt specify the length of your course. Press the

▼ or ▲ keys to choose distance. Press ENTER when the desired distance appears.

Note: You can change the “SELECT MILES” prompt to “SELECT TIME” if you prefer to

measure your workout by distance. Follow the procedure in Customizing the Display.

If you see “SELECT TIME” scroll across the display, specify the length of your workout. Press

the▼ or ▲ key to choose time; the display moves in 1-minute increments, from 5 to 50

minutes. Press ENTER when the desired time appears.

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Creating Custom Courses on the M9.21si

You can program the M9.21si and create your own course profiles using the two custom

courses (“CUST1” and “CUST2”). Programming a custom course is easy. You just create the

custom courses as you work out by determining the speed and incline for each 0.1 mile segment

along the 8-mile maximum course length. Speed and incline settings are saved once every .1 of a

mile which equals 10 dots on the display. Once you complete your workout, the course is stored

in memory and can be automatically recalled using the same program number.

To create a custom course, follow the steps in Working Out on the M9.21i or M9.21si Low

Impact Treadmill and add the following variation.

1. At the “SELECT COURSE” prompt, choose your custom course: either “CUST 1” or “CUST 2.”

Press the ▼ or ▲ keys until you see the desired course, then press ENTER.

Note: After pressing ENTER, a prompt scrolls across the display warning you that the

custom course contains set speed and inclines. You are not to use the course if you are not

familiar with it. The following instructions assume that you are programming a new custom

course. However, if you want to use the existing custom course, press SPEED ▲ to begin.

CAUTION: After pressing ENTER, clear an

existing custom course profile by simulta-

neously pressing both the INCLINE ▼▲ keys

for at least 3 seconds. The course profile

reverts to a blinking line at 0% incline. Be

cautious about performing this procedure.

Once you clear an existing course profile, you

cannot retrieve it.

2. Hold onto the handrail and press the SPEED ▲ key. Step onto the running belt while the

speed is at or below 1 mph and begin walking. Use the INCLINE▼▲ keys to change the

course profile as you walk. The first time the custom courses appear, the profile appears

flat (0% incline) until you change it.

3. As you move through the course, you can change the course profile by using the SPEED

and INCLINE ▼▲ keys on the segment that is blinking. You cannot “go back” to a segment

once you move beyond it. However, you can pause by pressing STOP. Prompts appear and

scroll across the display asking you to save the course and end your workout, or continue

with your workout.

•

Pressing ENTER saves the course profile up to the point (mile or kilometer) where you

stopped and resets any previously saved program course.

Note: You must program at least .10 mile (10 dots on the display) before your new

course can be saved otherwise the software reverts back to the existing course. If an

existing course profile extended beyond the segment where you stopped, it will be

discarded.

•

Pressing SPEED ▲ starts the running belt and allows you to continue from where you

left off. Be sure to hold onto the handrail before pressing SPEED ▲.

4. Once you reach the maximum distance of 8 miles, the prompt, “END COURSE” appears and

scrolls across the display. The running belt slows to a gradual stop, the incline returns to 0%,

and prompts appear requesting that you save your changes.

5. Save your changes by pressing ENTER. Once you save your custom course, you can work out

and use the same course over and over by entering the associated custom course number.

Deleting Custom Courses on the M9.21si

An existing custom course can be deleted by pressing both INCLINE ▼ or ▲ keys when the

custom course profile appears on the display. Take the following steps to delete a custom course:

CAUTION: Once you press the INCLINE ▼▲

keys to reset the course profile, you cannot

retrieve the old custom course.

1. After answering the setup prompts and choosing your custom course, a “CAUTION”

message scrolls across the screen indicating that an existing custom course exists.

2. When the course profile appears on the display, press both INCLINE ▼▲ keys and hold for

at least 3 seconds. A message appears indicating that the custom course profile has been

reset (0% incline and 1 mph/kph speed).

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Using the Precor Heart Rate Option

The Precor Heart Rate Interactive System has many unique features. When you use the Precor Heart

Rate Option and have the optional heart rate receiver installed in the electronic console, your heart

rate can appear on the display. The Smart Rate and Heart Rate displays simplify the correlation

between heart rate and exercise. You don’t have to stop concentrating on your workout to find your

pulse anymore. It is displayed right in front of you. When you use the Heart Rate Course, the software

monitors and maintains your heart rate in the target zone best suited for your specific needs.

When you maintain your heart rate between 70% and 85% of your maximum aerobic heart

rate, you are improving your overall cardiovascular/cardiorespiratory fitness level. If you maintain

your heart rate between 55% and 70% of your maximum aerobic heart rate, you are burning

enough calories that, when continued on a regular basis for 30 minutes or more, provides the

greatest fat-burning (weight loss) benefits. Before you use the chest strap transmitter, Heart Rate

Course, or Weight Loss program, please study this section thoroughly. Included in this section are

the following:

•

wearing the chest strap transmitter

•

using the Heart Rate Course

utilizing the heart rate interactive system

correcting inconsistent heart rate readings

Important: If you do not use the Precor Heart Rate Option and the optional heart rate receiver

according to the guidelines found in this manual, you could jeopardize the accuracy of your heart

rate readings or void the Precor limited warranty.

Wearing the Chest Strap Transmitter

The Precor Heart Rate Option is a completely wireless system. A built-in receiver displays continual

feedback about your heart rate when you wear the transmitter strap around your chest. No bulky

wires or cables interfere with your movements.

The wireless chest strap contains the electrodes that transmit your heart rate (pulse) to the

receiver. To get an accurate reading, the electrodes need to be moist and in direct contact with

your skin. Be sure to wear the chest strap underneath your clothing.

Take the following steps to put on the chest strap:

Diagram 11

Determine proper

length.

1. Determine the length of the strap by wrapping it around

your chest. Without stretching the strap, check the

distance between the two ends of the strap. For a snug fit,

the ends of the strap should be about 6 inches (15 cm)

apart. See Diagram 11. Adjust the tightness of the chest

6 in.

(15 cm)

strap by sliding the buckle along the strap.

2. Remove the strap from around your chest and dampen the

electrode strips with tap water as shown in Diagram 12 or

use the Precor spray. Do not use deionized water. To

function properly, the electrodes need the salts and minerals

found in non-purified water. Once you begin your workout,

your perspiration keeps the electrodes moist.

Diagram 12

Moisten electrodes.

If needed, use the

spray included with

the Precor Heart

Rate Option.

3. Buckle the strap around your chest. The strap should feel

snug, not restrictive. Make sure that the transmitter lies

horizontally across your chest and is centered in the middle

of your chest. See Diagram 13.

Diagram 13

Buckle chest strap.

Note: The chest strap transmitter has a one-year warranty.

Some units contain a replaceable battery. To change the

battery, refer to Changing the Battery in the Chest Strap on

page 32.

With the proper adjustment of the

chest strap, you are ready to begin using

the Precor Heart Rate Option.

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Utilizing the Heart Rate Interactive Capabilities

You can make each program on the treadmill a heart rate interactive course by monitoring and

maintaining your heart rate in the Smart Rate® zone best suited for your specific needs. You can

access Smart Rate only if the optional heart rate receiver is installed in your unit and you wear the

Precor chest strap. The Smart Rate indicator lights do not appear when you use QUICK START™.

CAUTION: Keep in mind that the “Heart Rate”

or “Training” zones are approximations.

Always check with your physician to learn what

the appropriate heart rate is for your level of

fitness. Do not push yourself beyond the

recommended range.

Before using the Heart Rate capabilities on the M9.21i or M9.21si, take time to read the following

guidelines.

•

Consult with your physician before engaging in any vigorous exercise. Do not use the Heart

Rate Course until authorized by your physician.

•

Slow down and stop immediately if you experience any pain or abnormal symptoms.

Gently stretch you lower body and back before and after working out to help prevent stiffness

or soreness.

•

Know your heart rate (pulse) and your physician-recommended heart rate training zone.

Individual heart rates vary according to several physiological factors and may not correspond

directly with the tables provided.

•

You should not use the Heart Rate capabilities if you are taking any medications that either

speed up or slow down your heart rate.

CAUTION: Refer to Precor Heart Rate Option—

Safety Guidelines for other important safety tips.

Always face forward on your treadmill and only use the handrails for balance. Do not use the

handrails to support your weight.

Keep in mind that you are working with very sensitive equipment and upper body movement

should be kept to a minimum.

After putting on the chest strap, turn the treadmill ON “O” and position yourself on the

running belt for a minimum of 15 seconds. This allows the treadmill to acknowledge the

presence of the transmitter.

•

While using the chest strap, face the electronic console and stay within 3 feet of it. If you

move outside the 3-foot range, the receiver may have difficulty picking up your heart rate

signal.

Remember to incorporate a cool-down period into your workout to help lower your heart rate

and minimize muscle stiffness or soreness.

Using the Heart Rate Course

The Heart Rate Course has been designed from research conducted at the world-renowned Cooper

Institute for Aerobics Research. The HRC program must be used in conjunction with the Precor

Heart Rate Option. You can use the Heart Rate Course to maximize your aerobic workout. Once you

start the program, the software automatically adjusts the incline (or prompts you to adjust the

speed, if necessary) to keep your heart rate within the cardiovascular heart rate zone.

Note: You must wear the Precor chest strap to use the Heart Rate Course.

To use the course follow the steps in Working Out on the M9.21i or M9.21si Low Impact Treadmill

and choose “HRC” at the “SELECT COURSE” prompt. The following occurs:

CAUTION: Always check with your physician to

learn what the appropriate heart rate is for your

level of fitness. Do not push yourself beyond

the recommended range.

1. A prompt asks you to select a workout time. The software defaults to 20 minutes if no

previous record exists. You can select a range of time between 5 and 99 minutes in 1-minute

increments. Use the▼ or ▲ keys to specify your workout time. Press ENTER.

2. A scrolling prompt appears to query you about your recommended heart rate zones. The upper

limit of your target heart rate appears and scrolls across the display. Use the▼ or ▲ keys if you

wish to override the recommended heart rate. Press ENTER. A chart showing the recommended

heart rate zones can be found in Diagram 15 in Getting the Most Out of Your Workout.

3. Another scrolling prompt appears to ask you to verify your lower heart rate limit. Use the▼

or ▲ keys if you wish to override the recommended heart rate. Press ENTER.

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4. The software verifies that it detects the heart rate signal and a prompt appears requesting that

you press the SPEED ▲ key to begin your workout.

Important: Hold onto the handrail. If the treadmill is not already at 0% incline, it automati-

cally returns to 0% incline.

5. Use the SPEED▼ or ▲ keys to control the running belt’s speed. The treadmill automatically

adjusts the incline to keep your heart rate within the target zone. You can use the INCLINE or

SPEED ▼ or ▲ keys any time during the 3-minute warm-up period to get your heart rate

into its target zone. The program automatically takes over once your heart rate is in the

target zone or the 3 minutes elapse. If, during your workout, your heart rate falls outside of

the target range, the treadmill automatically overrides the incline (in 2% increments up to

10%) to bring your heart rate to within the target zone.

Note: If your heart rate cannot be detected or no heart rate is transmitted for more than 3

minutes, the Heart Rate course begins, but its operation is the same as Manual mode. Every

30 seconds the program checks for a heart rate.

6. When you reach the time limit, the treadmill automatically enters Manual mode so you can

begin a cool-down period. You can change the speed and incline by pressing the ▼ or ▲

keys.

During your cool down, the displays on the console continue to appear. The TIME display

counts up from zero, so you know how long you have been in the cool-down period. It is

recommended that you cool down for at least 3 minutes. This helps your heart rate to return

to a normal rhythm.

7. Hold onto the handrail and press the STOP key or press the SPEED ▼ key until the running

belt slows to a gradual stop. The displays on the console freeze which lets you review your

workout statistics. Straddle the running belt and remove the safety clip from your clothing.

Step off the treadmill if you have finished your workout and turn it OFF.

8. To prevent unauthorized use, remove the magnetic safety key from inside the electronic

console and store it in a safe place.

Correcting Inconsistent Heart Rate Readings

If you have purchased the Precor Heart Rate Option and the treadmill cannot pick up your heart

rate signal or messages appear on the display regarding heart rate errors, stop your workout and

take the following steps:

Important: Be sure that the optional heart rate receiver is installed in the electronic console. Also,

review the information found in the Safety Information, Precor Heart Rate Option—Safety

Guidelines.

1. Make sure that the electrodes on the chest strap are moist and placed properly against your

skin. Sometimes, due to body chemistry, the chest strap cannot successfully detect and

transmit your heart rate. If this occurs, use the electrolyte spray that accompanies your Precor

Heart Rate Option package. Follow the directions on the bottle. After spraying the electrode

strips on the chest strap, check to be sure that the strap is comfortably tight around your

chest. The brand name of the strap should be upright and centered in the middle of your

chest. Refer to Diagram 13 in the section titled, Wearing the Chest Strap Transmitter.

2. Make sure that the treadmill is turned ON and the magnetic safety key is secure.

3. Be sure that you are within 3 feet of the electronic console and facing toward it. Allow a few

seconds for the receiver to display your heart rate on the electronic console’s display.

If you have taken the steps above and still get erratic readings, you may need to replace the chest

strap transmitter or its battery. For chest straps with batteries, refer to Changing the Battery in the

Chest Strap.

Most often, when the chest strap fails to transmit a heart rate signal, the cause is incorrect

placement or problems with the electrodes. Check with your local servicer, he or she has a chest

strap/heart rate simulator that can test your equipment to make sure that it is operating properly.

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Getting the Most Out of Your Workout

To help you get started in planning and carrying out your fitness program, this section provides

some basic information on aerobic exercise—such as how hard you should work out, how long

each session should be, and how often you need to exercise to benefit from a regular program.

Diagram 14

Muscles improved

Trapezius

Deltoid

Pectorals

Rhomboids

Triceps

Biceps

Latissimus Dorsi

Forearm Flexors/Extensors

Abdominals

10.

11.

12.

13.

14.

15.

16.

Erector Spinae

Gluteals

Hip Flexors

Quadriceps

Hamstrings

Gastrocnemius/Soleus

Peroneus Longus/Brevis

A workout on the M9.21i or M9.21si Low Impact Treadmill provides excellent and efficient

cardiovascular conditioning, while strengthening and toning all the major muscle groups in the

lower body. Darkened areas in Diagram 14 indicate the muscles improved.

To get the most out of each workout, a general understanding of the principles behind aerobic

training is invaluable. The best source of information is your specialty fitness dealer. In addition to

providing information on which exercise equipment is best for your individual needs, your fitness

dealer can provide useful advice on training, technique, and exercise physiology. Your dealer can

also recommend good books and audio/video tapes on these subjects.

How Hard Should I Exercise?

Studies show that to achieve the benefits of aerobic exercise, it is necessary to work out hard

enough to raise your heart rate to a certain minimum level, called the “training zone.” Your training

zone depends on your age and level of fitness.

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Diagram 15

Training zones

HEART RATE TRAINING ZONE

200

195

190

185

180

175

170

165

200

190

180

170

160

156

155

152

124

150

148

144

145

150

140

136

MAX.

132

^{RECOMMENDED TRAINING ZON}1^E28

HEART

RATE

124

101

130

120

100

120

130

116

127

120

117

114

111

107

104

80% OF

MAX.

HEART

RATE

65% OF

MAX.

HEART

RATE

25 30 35 40 45 50 55 60 65 70 75

YOUR AGE

Diagram 15 shows your recommended heart rate training zone, which is calculated using your age

and your maximum aerobic heart rate. Your maximum aerobic heart rate is equal to 220 minus

your age. The chart is based on a resting heart rate of about 72 for males and 80 for females. Your

optimum training zone is between 65% and 80% of your maximum heart rate. For efficient aerobic

exercise, work only hard enough to keep your heart rate in this zone. You will obtain the greatest

fat-burning benefits when you exercise within the optimum training zone.

Pushing yourself beyond the recommended range, (that is, exercising so hard that your heart rate

rises above 80% of maximum) can overstress your muscles. To increase cardiovascular improve-

ment, exercise longer, not harder.

Keep in mind that this zone is an approximation, to be used as a guideline—individual heart rates

vary according to several physiological factors. To determine your training zone, find your age on

the diagram, and then find the line where they intersect. For example, if you are 35 years old, your

training zone is between 114 and 140 beats per minute. Remember this zone—this is the heart rate

zone you should try to maintain as you work out.

If you do not have an accurate heart rate monitor, you can determine your heart rate by taking your

pulse at a place that you can reach easily and comfortably while you exercise. Typical places for

measuring heart rate are directly over the heart on the left side of the chest, on either side of the

neck, over the temple, or on the thumb side of either wrist. Wherever you measure your pulse,

make sure that you use your index and middle fingers—not your thumb. Your thumb has a strong

pulse which can affect your pulse rate reading.

Once you locate your pulse, look at a clock with a second hand, and count the beats for six

seconds. Multiply that number by 10 to determine the total number of beats per minute. For

example, if you count 14 beats over six seconds, the total number of beats per minute is 140.

Compare the total number of beats with your training zone as identified in Diagram 15. If neces-

sary, increase or decrease your activity level to bring your heart rate into your training zone. You

can regulate your work level (and heart rate) by changing belt speed and incline. Remember—your

heart rate is the definitive measure of how hard you are working.

Regardless of your fitness level, avoid doing too much too soon. Running or walking too fast or

choosing too high of an incline are common errors. Give yourself time to become familiar with

your treadmill and to improve your fitness level. Then you can gradually increase speed and incline

to make your workouts more challenging.

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How Long Should I Exercise?

The length of each exercise session depends on your fitness level. Exercise physiologists have

determined that, to attain cardiovascular benefits from exercise, you should maintain your heart

rate in its training zone for at least 15 minutes. This is in addition to your warm-up time, and does

not include cool down. You should always allow several minutes to bring your heart rate into the

training zone, by starting out slowly and gradually increasing work level. Similarly, use several

minutes of light exercise after the workout to bring your heart rate down to near resting level.

The higher your fitness level, the longer you should maintain your heart rate in the training zone

(between 20 and 30 minutes). Beginners should always start slowly, and gradually bring their

sessions up to 20 minutes or more.

How Often Should I Exercise?

Research indicates that aerobic sessions of 20 minutes or more should be done at least three to

five times a week to obtain significant cardiovascular benefits. Most experts agree that sensible

eating habits and regular aerobic exercise are the keys to weight control and fitness. A recent

study, which tracked several subjects over a period of years, conclusively shows that exercise, not

dieting, is the key factor to long-term weight loss.

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Maintaining the Low Impact Treadmills

The M9.21i or M9.21si Low Impact Treadmill requires little maintenance to keep it running

smoothly and efficiently. However, the customer is responsible for the typical maintenance tasks

such as, cleaning the treadmill and adjusting the running belt. If you fail to maintain the treadmill

as described below, it could affect or void the limited warranty.

Cleaning the Equipment

CAUTION: Turn OFF the treadmill and discon-

nect the power cord before performing most

maintenance tasks.

Your Precor treadmill relies on low friction for efficient operation. To keep the friction low, the

treadmill must be as clean as possible.

Before a workout, use a damp, soft, clean cloth to clean the side platforms and running bed, (refer

to Diagram 17 on page 33). This helps to remove any dirt or dust that might affect the smooth

operation of the treadmill.

Vacuum the floor underneath the unit every week to prevent the accumulation of dust and dirt on

the running belt.

CAUTION: Do not use an abrasive cleaner on

the strap. Do not immerse any part of the chest

strap. Do not spray or pour liquids on any part

of the equipment.

To periodically clean the treadmill’s frame, electronic console, and running belt, use a solution of

mild soap and water and dampen a clean cloth. To clean the running belt and the groves on the

plastic trim strip, use a soft nylon scrub brush. Never pour water or spray liquids on the electronic

console. Allow the treadmill to dry completely before using it.

Manually advance the running belt to clean the opposite side. Do not clean the belt while the

running belt is moving. Liquid can splash onto the motor causing damage to the equipment and

possibly injuring you.

The Precor Heart Rate Option equipment requires little maintenance beyond keeping it dust free

and cleaning the chest strap with mild soap and water. Use a damp sponge or soft cloth to clean

the chest strap. Dry the surface thoroughly with a clean towel.

Changing the Battery in the Chest Strap

Some Precor Heart Rate Option’s chest straps come equipped with a battery. Others are the

disposable variety. If you have a battery-type chest strap, the signs that the battery is low and

needs to be replaced include:

•

erratic heart rate display

•

no heart rate display appears

To replace the battery, take the following steps:

1. Use a quarter or flathead screwdriver to open the battery case located between the two

electrode strips on the chest strap. See Diagram 16. Set the battery cover aside.

Changing the battery

Diagram 16

Battery case

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2. Remove the old battery and replace it with a fresh one. Make sure that the positive (+) side

is up facing you.

3. Screw the battery cover back into place.

4. Test the battery by putting on the chest strap as described in Wearing the Chest Strap

Transmitter. Stand within 3 feet and face the electronic console. (Be sure that the treadmill is

turned ON). If the battery has been installed properly, your heart rate should appear on the

display when you begin a workout program.

Storing the Chest Strap

Store the chest strap transmitter in a place where dust and dirt cannot accumulate on it such as, a

closet or drawer. Be sure to keep the chest strap protected from extremes in temperature. Do not

store it in an area that may be exposed to temperatures below 32 degrees Fahrenheit.

Aligning the Running Belt

CAUTION: Special care must be taken when

aligning the running belt. Turn OFF the treadmill

while adjusting or working near the rear roller.

Remove any loose clothing and tie back your

hair. Be very careful to keep your fingers or any

other object clear of the belt and rollers,

Before aligning the running belt, check its operation by following the procedure in Checking the

Alignment of the Running Belt on page 14. If you determine that the belt needs alignment, follow

the instructions here.

Realigning the belt takes a few simple adjustments. If you are unsure about this procedure, call

your authorized Precor dealer for service (see Obtaining Service).

especially in front of the roller and behind the

deck. The treadmill will not stop immediately if

an object becomes caught in the belt or rollers.

Take the following steps to adjust the running belt on the treadmill. To ensure your safety, make all

adjustments while the treadmill is OFF.

Diagram 17

Alignment of the

running belt

Running bed

Side platform

CAUTION: Turn OFF the treadmill and wit for the belt to stop

when adjusting or working near the rear roller. Be very careful

to keep your fingers or any loose object clear of the belt and

rollers. The treadmill wll not stop immeadiately if an object

becomes caught in the belt or rollers.

Rear roller

Belt adjustment bolt

Running belt

1. Make sure the treadmill is OFF and the running belt has completely stopped.

2. Locate the left belt adjustment bolt at the rear of the treadmill as shown in Diagram 17. The

direction you turn the bolt depends on how the belt is tracking. Make all belt adjustments on

the left rear corner bolt using the hex key provided.

•

If the belt is off center to the LEFT, turn the adjusting bolt 1/4 turn clockwise, which

moves the running belt to the right.

If the belt tracks off center to the RIGHT, turn the bolt 1/4 turn counterclockwise; this

moves the belt to the left.

Important: Do not turn the adjusting bolt more than 1/4 turn at a time. Overtightening the bolt

can damage the treadmill.

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CAUTION: Stand to the side of the treadmill.

The running belt begins moving automatically

after you press QUICK START.

3. Insert the Safety key, turn ON the treadmill, press the QUICK START key, and then increase

the running belt speed to 3 mph (5 kph) by pressing the SPEED ▲ key.

4. Observe the running belt for a couple of minutes. The belt should track centered on the

running bed.

CAUTION: If you hear a chafing sound or the

belt begins to tear or fray, stop the running belt

immediately by pressing the STOP key or

pulling the magnetic safety key out of the

electronic console. Contact your Precor service

representative.

5. Press STOP to stop the running belt.

6. If the belt needs additional alignment, repeat steps 1 through 5 of this procedure until the belt

is properly aligned.

Adjusting the Tension of the Belt

Proper belt tension is important for a smooth, steady run. If your physical condition permits, test

the belt tension by jogging at 6 mph (10 kph). If the belt tension is too loose, you will feel a pause

in the belt with each footplant (step).

To adjust the running belt tension, take the following steps:

1. Make sure that the treadmill is OFF (O). If the treadmill is ON ( I ), switch it to OFF. Wait for

the running belt to come to a complete stop.

Diagram 18

Adjusting tension of the belt

Running bed

Side platform

Rear roller

Belt adjustment bolt

Running belt

2. Standing behind the treadmill use the rear belt adjustment bolts (see Diagram 17 on the

previous page and Diagram 18). Simply turn each bolt clockwise 1/4 turn to adjust the tension

of the belt.

CAUTION: Stand to the side of the treadmill.

The running belt begins moving automatically

after you press QUICK START.

3. Insert the Safety key, turn ON the treadmill, answer the start-up prompts, then increase the

speed of the running belt to 6 miles per hour (10 kph) by pressing the SPEED key.

4. Jog on the running belt for 1 minute or more. If you feel a pause in the belt with each

footplant (step), you need to continue to adjust the belt tension.

5. Press STOP to stop the running belt.

6. Continue with steps 1 through 5 until the belt tension has been properly adjusted and you no

longer feel the pause in the belt with each footplant.

Important: Do not turn the adjusting bolts more than 1/4 turn at a time. Overtightening the

bolts can damage or cause premature failure of the precision bearings in the front and rear

rollers.

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Obtaining Service

Do not attempt to service the M9.21i or M9.21si Low Impact Treadmill yourself except for minor

belt adjustments and maintenance as described in this manual. The M9.21i or M9.21si treadmill

does not contain any user-serviceable parts.

For information about product operation or service, contact an authorized Precor dealer or a Precor

Factory Authorized Service Company. To locate the dealer or service person nearest you, call 1-

800-4-PRECOR.

To help the customer service representative expedite your call, have your serial number available.

The serial number on the treadmill is printed on a label located underneath the treadmill at the left,

rear corner of the running bed frame. If you haven't already written the serial number in the space

provided below during the assembly process, you will need to get on your knees and bend down to

see it.

Model number: _M_9_._2_1_i_o_r_M_9_._2_1_s_i_ Serial number: _________________________

If you have any questions regarding the treadmill, use the model and serial numbers whenever you

call your Precor dealer or service person.

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M9.21i and M9.21si Low Impact Treadmills

featuring the Heart Rate Interactive System

Specifications

Length:

Width:

67 inches (170 cm)

Handrails 28.5 inches (71 cm)

Base 25 inches (63.5 cm)

44 inches

Height:

Runningsurface:

Motor:

51 inches by 17 inches (129.5 cm by 43 cm)

2.0 hp continuous duty

Speed:

0.5 to 10 mph (0.8 to 16 kph)

10 mph is equivalent to a 6 minute mile

0 to 15% grade

Incline:

Power:

Weight:

50/60Hz 120v AC 12 Amps

193 lbs (87 kg)

Shippingweight:

233 lbs (105 kg)

Electronic Specifications

M9.21i Programs:

M9.21i and M9.21si Display Readouts:

Manual

Distance (miles or kilometers)

Time

Interval (1 minute rest: 1 minute work)

Weight Loss

Random

Speed (mph or kph)

Calories

Heart Rate Interactive Course*

Incline

Heart rate* and Smart Rate®*

Scan

M9.21si Programs:

Manual

Interval (1 minute rest: 1 minute work)

Weight Loss

6 Preprogrammed courses (3 Walk, 3 Run)

2 Custom courses

Random

Heart Rate Interactive Course*

*Requires the Precor Heart Rate Option kit.

Precor Incorporated

P.O. Box 3004

Bothell, WA USA 98041-3004

Precor, “M”, and Smart Rate are registered trademarks and Cardiologic and

CrossRamp, and Quick Start are trademarks of Precor Incorporated.

P/N 37975-101

9/97

Specifications subject to change without notice.

1-800-4-PRECOR

NOTICE:

Precoriswidelyrecognizedforitsinnovative, awardwinningdesignsofexerciseequipment.

PrecoraggressivelyseeksU.S.andforeignpatentsforboththemechanicalconstructionand

thevisualaspectsofitsproductdesign. AnypartycontemplatingtheuseofPrecor’sproduct

designs is hereby forewarned that Precor considers the unauthorized appropriation of its

proprietary rights to be a very serious matter. Precor will vigorously pursue all unauthorized

appropriation of its proprietary rights.

page 36

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