Precor Low Impact 9.31 User Manual

9.31

Important Safety Instructions

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When using an electrical appliance, always take basic
precautions, including the following:

• Read all instructions before using the treadmill. These
instructions are written to ensure your safety and to
protect the unit.

• Before beginning any fitness program, see your physician
for a complete physical examination.

Il est conseillé de subir un examen médical complet
avant d’entreprendre tout programme d’exercise. Si vous
avez des étourdissements ou des faiblesses, arrêtez les
exercices immédiatement.

DANGER

WARNIN

• Do not allow children or those unfamiliar with its
operation on or near the treadmill. Do not leave children
unsupervised around the unit.

To reduce the risk of electrical shock
always unplug the treadmill from the
electrical outlet immediately after
using and before cleaning.

To reduce the risk of burns, fire,
electric shock, or injury, take the
following precautions:

• Never leave the treadmill unattended when it is plugged
in. Unplug the treadmill from the power source when it is
not in use, before cleaning it, and before putting on or
taking off parts.

• Assemble and operate the treadmill on a solid, level
surface. Locate the treadmill a few feet from walls or
furniture. Keep the area behind the treadmill clear.

• Maintain the treadmill in good working condition. Refer to
the Maintenance section. Make sure that all fasteners are
secure and the belt is clean and running smoothly.

• Use the treadmill only for its intended purpose as
described in this manual. Do not use accessory
attachments that are not recommended by the
manufacturer, as such attachments may cause injuries.

• Never operate the unit if it is damaged, not working
properly, when it has been dropped, or has been
dropped in water. Return the treadmill to a service center
for examination and repair.

• Keep the power cord and plug away from heated
surfaces.

• Do not operate the treadmill where aerosol (spray)
products are being used or where oxygen is being
administered.

IMPORT ANT SAFETY INSTRUCTIONS

Owner’s Manual: Important Safety Instructions 1

• Do not use outdoors.

• Never block the air vents while operating the treadmill.
Keep the air vents clean and free of lint, hair, or anything
that might impede the free flow of air.

• Do not attempt to service the treadmill yourself except to
follow the maintenance instructions found in this manual.

• Never drop or insert objects into any opening. Keep
hands away from moving parts.

• Keep all electrical components, such as the power
cord and I/O switch, away from liquids to prevent shock.
Do not set anything on the handrails, display console,
or hood. Place liquids, magazines, and books in the
appropriate receptacles.

DANGER

• Wear proper exercise clothing and shoes for your
workout and avoid 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.

• Use care when getting on or off the treadmill. Always
grasp the handrail when stepping on the running belt and

The treadmill must be connected to a
dedicated, grounded circuit. See
Grounding Instructions.

keep the initial speed at or below 1 mile per hour (mph)
or 1 kilometer per hour (kph). Never step off the treadmill
while the running belt is moving.

• Before the running belt begins moving (before 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 staging platforms.

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

• The security clip must be attached at waist level before
your workout. A lanyard connects the security clip to
the red STOP button on the display console. If you
encounter difficulties, a strong tug on the lanyard stops
the running belt.

• Do not rock the unit. Do not stand on the handrail(s),
display console, or hood.

• Do not overexert yourself or work to exhaustion. If you
feel any pain or abnormal symptoms, stop your workout
immediately and consult your physician.

• When the treadmill is not in use, disconnect the unit by
turning the power switch to the OFF (O) position, and
then remove the power plug from the wall outlet.

IMPORT ANT SAFETY INSTRUCTIONS

Owner’s Manual: Important Safety Instructions 2

Password Security

To help prevent unauthorized use, the treadmill is equipped
with password protection. The password involves entering
three keys in sequence. If the correct keys are not pressed
within two minutes, further access is denied and the
running belt will not move. For more information, refer to

Entering the Password.

Safety Approval

When identified with the ETL-c logo, the unit has
been tested and conforms to the requirements of
CAN/CSA-E-335-1/3-94, Safety of Household and
Similar Electrical Appliances.

Grounding Instructions

The treadmill must be grounded. If the unit malfunctions or
breaks down, grounding provides a path of least resistance
for electric current, which reduces the risk of electrical
shock. The unit is equipped with a power cord having an
equipment-grounding conductor and a grounding plug.
The plug must be inserted into an outlet that is properly
installed and grounded in accordance with all local codes
and ordinances. Failure to properly ground the treadmill
could void the Precor Limited Warranty.

DANGER

Improper connection of the equipment­grounding 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
unit is properly grounded. Do not
modify the plug provided with the
treadmill. If it does not fit the outlet, get
a proper outlet installed by a qualified
electrician.

IMPORT ANT SAFETY INSTRUCTIONS

Owner’s Manual: Important Safety Instructions 3

120 V Units Designated for U.S. Markets

The treadmill must be connected to a dedicated, grounded
circuit with a nominal 120-volt rating. The unit’s grounding
plug looks like the plug shown in Diagram 1. The power
outlet must have the same configuration as the plug. No
adapter should be used with this product.

Diagram 1: Power plug

Radio Frequency Interference (RFI)

Federal Communications Commission, Part 15

The treadmill has been tested and found to comply with

• the IEC EMC Directive (international electromagnetic
compatibility certification)

• 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 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.

If the treadmill does cause harmful interference to radio or
television reception, which can be determined by turning
the unit OFF and ON, you are encouraged 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 unit and the receiver
(TV, radio, etc.).

IMPORT ANT SAFETY INSTRUCTIONS

Owner’s Manual: Important Safety Instructions 4

• Connect the treadmill into a different power outlet on a

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dedicated circuit different from the one used by the
receiver (TV, radio, etc.). No other appliance should be
plugged into the same power outlet as the treadmill

• Consult an experienced radio/TV technician for help.

European Applications

This product conforms to the requirements of the European
Council Directive 89/336/EEC, Electromagnetic
Compatibility and has been tested to the following
standards:

IMPORT ANT SAFETY INSTRUCTIONS

WARNIN

Per FCC rules, changes or
modifications not expressly approved
by Precor could void the user’s
authority to operate the equipment.

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.

• EN55022, Limits & Methods of Measurement of Radio
Interference, Information Technology Equipment.

• EN50082-1, Generic Immunity Standard for Residential,
Commercial and Light Industrial Products.

This product additionally conforms to the requirements of
the European Council Directive 73/23/EEC, Low Voltage
Directive and has been tested to the following standard:

• IEC 335-1, Safety of Household and Similar Electrical
Appliances.

ATTENTION: Haute Tension

Débranchez avant de réparer

Owner’s Manual: Important Safety Instructions 5

Obtaining Service

Do not attempt to service the treadmill yourself, except for
the maintenance procedures described in this manual. The
treadmill does not contain any user-serviceable parts. For
information about product operation or service, see the
Precor web site at www.precor.com or call Precor
Customer Support at 1-800-347-4404.

You will need the model and serial numbers whenever you
contact Precor Customer Support. The serial number is
printed on a label located on the front panel, near the power
cord (Diagram 2). For future reference, write the model and
serial number and date of purchase in the space provided.

Model #: _______ Serial #: _______________________

Date purchased: _________________________

Serial number
label

IMPORT ANT SAFETY INSTRUCTIONS

Diagram 2: Location of serial number

Owner’s Manual: Important Safety Instructions 6

Table of Contents

Important Safety Instructions .............................1

Password Security ..................................................... 3

Safety Approval .......................................................... 3

Grounding Instructions ............................................. 3

Radio Frequency Interference (RFI) ....................... 4

European Applications .............................................. 5

Obtaining Service ...................................................... 6

Treadmill Safety Features ....................................9

Using the Security Clip .............................................9

Entering the Password .............................................. 9

Using the Handrails .................................................10

Turning the Unit ON and OFF ...............................10

Heart Rate Features ............................................11

Guidelines ..................................................................11

Using SmartRate ......................................................12

Exercise to Your Target Heart Rate .....................13

Owner’s Manual: Table of Contents 7

Display Console .................................................... 14

Keypad ....................................................................... 17

Changing the Display Features

Using the SELECT Key .......................................... 19

Workout Options .................................................. 20

Choosing QUICKSTART ....................................... 21

Selecting a Program ............................................... 22

Cooling Down After a Workout ............................ 23

Pausing During a Workout or the

Cool-Down Period ................................................... 23

Ending a Workout ................................................... 24

Programs ................................................................25

Choosing a Program ...............................................25

Program Tips .............................................................26

Manual (MANL) Program ........................................27

Interval (INTV) Program ...........................................27

Random (Random) Program ..................................28

Weight Loss (WTLS) Program .............................29

Heart Rate Control (HRC) Program ....................30

Advanced Programming

and Troubleshooting ...........................................32

Advanced Programming Tips ................................32

Selecting a U.S. Standard or Metric Display .....33

Selecting Password Protection ............................33

Informational Displays .............................................34

Troubleshooting Error Codes ................................36

Troubleshooting Heart Rate ...................................37

Maintenance ..........................................................38

Inspection .................................................................. 38

Cleaning the Equipment ........................................ 38

Storing the Chest Strap ......................................... 39

Checking the Alignment of the

Running Belt ............................................................. 39

Adjusting the Running Belt ................................... 40

Servicing the Treadmill ........................................... 41

Long-Term Storage ................................................. 41

Precor Residential Equipment

Limited Warranty.................................................. 42

Owner’s Manual: Table of Contents 8

Treadmill Safety Features

The treadmill is equipped with certain items that, when used
properly, help sustain an enjoyable workout. These items
include:

• Security clip

• Password protection

• Handrail

•I/O power switch

Important: Before exercising, review the Important Safety
Instructions found at the beginning of this manual.

Security clip

Lanyard

Diagram 3: Attach the security clip to your clothing

Using the Security Clip

Attach the security clip to your clothing before each workout.
A tug on the lanyard trips the security switch inside the
display console and stops the running belt.

If the security switch trips while you are exercising, reattach
the security clip to your clothing, enter the password, and
press SPEED ▲.

Note: The treadmill retains your workout statistics if you
resume your workout within ten minutes.

Owner’s Manual: Treadmill Safety Features 9

Entering the Password

The treadmill provides password protection to help prevent
unauthorized use. At the password prompt, press the
following key sequence: INCLINE ▼, SPEED ▼, SPEED ▲.

An asterisk appears on the display with each key press. If the
correct keys are not pressed within two minutes, the Precor
banner appears on the display and the running belt does
not move.

Important: Do not assume the treadmill is safe because of
password protection. Never leave children unsupervised
around the treadmill.

Using the Handrails

To maintain your balance, always grasp a handrail when you
step on or off the treadmill, and when you use the keypad.

Turning the Unit ON and OFF

To turn the unit ON and OFF, use the I/O power switch
located at the front of the unit, near the power cord. Refer to
Diagram 4.

Important: When it is not being used, turn the unit OFF.

I/O power switch

Diagram 4: I/O power switch

Owner’s Manual: Treadmill Safety Features 10

Heart Rate Features

114

• Know your heart rate (pulse) and your physician­recommended heart rate target zone. Individual heart
rates vary according to several physiological factors and
may not correspond directly with Diagram 5.

Heart rate and SmartRate® features are available when the
heart rate receiver is installed in the display console and you
wear a chest strap. During a workout, a number representing
your heart rate is displayed. The heart rate LED pulses when
a heartbeat is detected.

Note: The heart rate receiver and chest strap are optional
purchase items for the M9.31 treadmill. If you are interested
in purchasing this option, refer to Obtaining Service.

Guidelines

Read the following before using the heart rate feature.

• Consult your physician before engaging in any vigorous

200

190

180

170

160

150

140

130

120

110

100

90

80

70

20 25 30 35 40 45 50 55 60 65 70 75

Diagram 5: Heart rate target zones

exercise. Do not use the heart rate features until
authorized by your physician.

• The target heart rate is determined using a simple
calculation:

(220 minus age) multiplied by 70%

Owner’s Manual: Heart Rate Features 11

• After you put on the chest strap, face the display console
for a minimum of 15 seconds. This allows the receiver in
the console to recognize the signal from the chest strap.

• If three dashes (— — —) appear on the display, the treadmill
cannot detect a heart rate. Make sure the chest strap is
positioned properly around your chest and against your skin.

• Always face forward on the treadmill and use the handrail
for balance.

Using SmartRate

The SmartRate feature helps you monitor and maintain your
heart rate in the target zone best suited to your specific
needs. When you wear a chest strap, a blinking LED appears
on the SmartRate display. The blinking LED indicates the
zone that your heart rate is in, either weight loss or
cardiovascular.

The SmartRate indicator lights do not appear when:

• You press QUICKSTART at the banner

• You bypass the AGE prompt

• You do not wear or improperly position the chest strap

Note: Review the information on the QUICKSTART card that
accompanies your literature packet. It explains how to adjust
the chest strap.

Owner’s Manual: Heart Rate Features 12

For the ideal weight loss range, the first, second, and third
SmartRate LEDs are lit and the fourth LED blinks. If you’re
working out in the cardiovascular zone, the fifth or sixth LED
should be blinking. Refer to Table 1.

Table 1. Heart rate target zones and SmartRate LEDs

Heart Rate
Target Zone
Percent

Below 55 First First

55 to 60 First Second

61 to 66 First through second Third

67 to 72 First through third Fourth

73 to 79 First through fourth Fifth

80 to 85 First through fifth Sixth

Above 85 First through sixth Seventh

CAUTION: Your heart rate should never exceed 85% of
your maximum aerobic heart rate. If it does, the seventh
SmartRate LED begins to blink. Immediately reduce your
pace or adjust the incline to return your heart rate to its
target zone.

LED Lit

LED
Blinking

Exercise to Your Target Heart Rate

The treadmill includes a program that lets you exercise
based on a specified heart rate. You set your target heart
rate at the beginning. As you exercise, the Heart Rate
Control program monitors your heart rate and automatically
maintains it within a few beats per minutes (bpm) of your
selected target. Your actual heart rate (pulse) appears in the
display when the HEART RATE LED is lit.

To use this program, select HRC. You must also wear the
chest strap so the program can monitor your heart rate
throughout the workout. For more information, refer to Heart

Rate Control (HRC) Program.

Owner’s Manual: Heart Rate Features 13

Display Console

Center display: When you begin a
program, the program profile displays
and remains until the scanning

the SmartRate feature is activated. Follow the LEDs
to monitor your heart rate and maintain it in your
target zone.

process is initiated.

SCAN LED: When lit, the scan

SmartRate display: LEDs light in this column when

feature is active and information
on the center display cycles
through the highlighted feature
(PROFILE, TIME, and so on).
Refer to Changing the Display
Features Using the SELECT Key.

QUICKSTART: Press QUICKSTART

LEDs: Light and clarify what

workout statistics appear on
the display.

SmartRate

Above

Cardiovascular

Weight Loss

Below

to begin your workout immediately. It
lets you bypass the setup prompts.

Keypad: Use the keypad to:

• Control your workout session

• Answer prompts prior to starting a program

STOP

SELECT key: Enter data during the setup phase
and customize the display during a workout.

• Determine which display features appear

• Prematurely end a program

• Adjust the speed or incline

Red STOP button: Press to
pause a workout.

Owner’s Manual: Display Console 14

The center display shows the following information. This
information is shown in alphabetic order.

CALORIE S—displays the estimated cumulative number of
calories burned. The calorie calculation is derived from the
speed, incline, and your weight. An accurate weight entry
results in a more accurate calorie count. When using
QUICKSTART and a weight has not been specified, the
default weight is 150 pounds (68 kilograms).

DISTANCE—shows a linear distance in either miles or
kilometers. The distance is calculated based on your speed.

HEART RATE—displays your heart rate. If you are wearing
the chest strap, the display shows your heart rate when the
LED is lit.

The heart rate LED lights if the heart rate receiver is installed
in the display console, otherwise the feature is skipped. If
you wish to purchase the heart rate option, refer to Obtaining
Service.

INCLINE—displays the percentage of incline during your
workout. The INCLINE ▼ or ▲ keys affect the lift and let you
set an incline between 0% and 15%. The values displayed
can change in 0.5% increments.

PROFILE—appears on the display and corresponds to the
program you selected. As you continue your workout, a
blinking column indicates your position in the program.
Changes in incline affect the column height as shown in
Diagram 6.

If the profile is only one row high, then markers ( )
appear occasionally and provide a sense of movement
through the program.

SPEED—displays the running belt speed in miles per hour
(mph) or kilometers per hour (kph). The running belt speed
ranges from 0.5 to 11 mph (1 to 18 kph) and can be
changed in 0.1 increments using the SPEED ▼▲ keys.

Owner’s Manual: Display Console 15

SCAN—lights when the scanning feature is active. The
display consecutively scans through the highlighted features
(PROFILE, TIME, DISTANCE, etc.). Indicator lights appear
next to the feature being displayed. You can change which
features appear by pressing the SELECT key. Refer to
Changing the Display Features Using the SELECT Key.

TIME—displays workout time in minutes and seconds;
however, when you exceed 60 minutes during a single
workout, the time display converts to hours and minutes. For
programs with a workout time limit, the TIME display shows
the amount of time remaining. For programs without a
workout time limit, the TIME display indicates the amount of
time you have been exercising.

Owner’s Manual: Display Console 16

Keypad

Use the keypad to enter your workout session selections.
Keys on the keypad respond to the slightest touch. Use
gentle pressure on the keys as you exercise.

Changes to the incline are not immediate. It takes
time for the lift to reach the target incline shown on
the display.

The incline setting affects the column height in the
program profile as shown in Diagram 6.

The height of the column indicates the level of incline.
Every time the incline changes by four sequential
levels (up or down) the height of the column changes
by one row.

STOP

INCLINE ▲▼:
Press and hold the INCLINE arrows to increase or

Column height

Incline Setting

13 to 15

11 to 12.5

9 to 10.5

7 to 8.5

5 to 6.5

3 to 4.5

0 to 2.5

decrease the incline from 0% to 15% in 0.5%
increments.

During your workout, to view your current incline, tap
either INCLINE ▲ or ▼ key. To change the incline,
press the arrow key for more than one second.

Diagram 6: Column height affected by changes in incline

Note: During the setup phase, pressing the INCLINE
arrow keys will not affect the incline. However, the arrow
keys do affect what appears on the display. Refer to

Selecting a Program.

Owner’s Manual: Display Console 17

RESET: During pause mode, press the RESET key to
display a WORKOUT SUMMARY. Press RESET again
to return to the Precor banner. No workout statistics are
saved.

QUICKSTART: Press QUICKSTART to bypass the
setup prompts and start your workout immediately
using the Manual program. Refer to Choosing
QUICKSTART.

STOP: A firm tap on the red STOP button slows the
running belt to a stop and the treadmill enters pause
mode. To resume, enter your password and press the
SPEED ▲ key. Refer to Pausing During a Workout or
the Cool-Down Period.

SELECT: The SELECT key has two functions:

• To select a program

• To change features displayed during a workout; refer

to Changing the Display Features Using the
SELECT Key.

SPEED ▼▲: Press and hold the SPEED arrow keys to
increase or decrease the running belt speed from 0 to
11 mph (1 to 18 kph) in 0.1 increments.

When you press the arrow keys, a target speed
appears in the display. The running belt speed changes
to meet the target, but the change occurs gradually so
the transition is smooth.

During your workout, to view your current speed, tap
either SPEED ▼ or ▲ key. To change the speed, press
the arrow key for more than one second.

Note: During the setup phase, pressing the SPEED
arrow keys will not affect the speed. However, the
arrow keys do affect what appears on the display. Refer
to Selecting a Program.

Owner’s Manual: Display Console 18

Changing the Display Features Using the SELECT Key

Use the SELECT key to choose which feature appears on
the display. When you begin a program, the display
automatically scans all highlighted features.

You can set up the scan feature so only specific information
appears. To customize the scan feature, switch the indicator
light off next to the item. If the indicator light is off, the item
will not appear in the display. If more than one item is
highlighted, the treadmill scans between the selected
features and skips over the ones that are not highlighted.

To add an item to the scanning process:

• Lightly tap the SELECT key until the appropriate indicator
lights up. You must then press and hold the SELECT key
for at least two seconds. The indicator light blinks until you
release the key. During the next scan, the LED lights and
the associated information appears.

To turn off an indicator light and remove the item from
the scanning process:

• When the indicator light next to the item is lit, press and
hold the SELECT key for at least two seconds. The
indicator light blinks until you release the key. The next
time the treadmill performs a scan, the indicator remains
blank and the associated information is skipped.

Owner’s Manual: Display Console 19

Workout Options

CAUTION: Before beginning any fitness program, see your
physician for a complete physical examination. Know your
physician-recommended heart rate target zone.

1. Turn the unit ON. The Precor banner scrolls across the
display.

6. Select one of the following options:
Option 1: Use the QUICKSTART key
Choose this option to start your workout immediately.

Refer to Choosing QUICKSTART.
Option 2: Use the SELECT key
Choose this option for a more customized approach. The

display walks you through the preferences for a program,
workout time, weight, and age. Preferences retained from
the previous workout appear. You have the option to
change or accept them. Refer to Selecting a Program.

PRECOR

SmartRate

Above

Cardiovascular

Weight Loss

Below

Important: If password protection is enabled, you will need
to enter a password to begin your workout. At the password
prompt, press the following keys in sequence:
INCLINE

▼

, SPEED ▼, SPEED ▲.

2. Step on the treadmill.

3. Face the display.

4. Attach the security clip to your clothing.

5. Hold on to the handrail with one hand.

Owner’s Manual: Workout Options 20

Choosing QUICKSTART

1. Press QUICKSTART while the banner is scrolling to
bypass the detailed setup prompts and access the
Manual (MANL) program.

QUICKSTART applies the following defaults:

Prompts Default Value

Program Manual (MANL)

Time No limit (NOLIM)

Weight 150 lb (68 kg)

Age 0

2. If needed, enter the password by pressing INCLINE ▼,
SPEED ▼, and SPEED ▲. An asterisk appears on the
display with each entry.

A 3-second countdown appears on the center display,
and then the running belt starts moving.

3. Step on to the running belt with the speed at or below
1 mph (1 kph) and begin your workout. Use the SPEED ▲
to increase the speed of the running belt.

Note: QUICKSTART can also take existing workout
preferences and apply them if you select a program before
pressing QUICKSTART. Refer to Selecting a Program.

Owner’s Manual: Workout Options 21

Selecting a Program

1. Press SELECT while the Precor banner is scrolling, and
then press the arrow keys to cycle through the available
programs.

2. When the program you want appears, press SELECT.
Refer to Table 2.

Table 2. Available programs

Program Name

Manual MANL

Interval INTV

Weight Loss WTLS

Random RAND

Heart Rate HRC *

* Requires the user to wear a chest strap and to install the heart

rate receiver in the display console.

Program Abbreviation

3. A program time blinks in the display. If a time from the
previous workout is available, it replaces the default time.
Press the arrow keys to select the program time (between
0 and 99 minutes) and then press SELECT.

Note: If you select a zero time limit, NOLIM appears in the
display and designates an unlimited workout time. If you
choose NOLIM, remember to incorporate a cool-down
period at the end of your workout.

4. Enter your weight (1–999), and then your age (1–99).

5. To change a value (program, workout time, weight, or age)
that you have already entered, press RESET, and then
reenter the information.

6. Step on to the running belt with the speed at or below
1 mph (1 kph) and begin your workout. Use the SPEED ▲
to increase the speed of the running belt.

Note: You can press QUICKSTART after any of the prompts
(program name, workout time, weight, or age entry).
QUICKSTART applies existing preferences from the
previous workout to any prompts you skipped.

Owner’s Manual: Workout Options 22

Cooling Down After a Workout

Incorporate a cool-down period into your workout to help
lower your heart rate and minimize muscle stiffness or
soreness.

When you complete a program with a time limit, you
automatically enter a 5-minute cool-down period. The Manual
(MANL) program profile appears in the display, the running
belt speed is reduced by 20%, and the incline is set to 0%.
To adjust the speed or incline, press the arrow keys.

A workout summary appears at the end of the 5-minute cool­down period. See Ending a Workout.

Important: If you press QUICKSTART or enter a time of
NOLIM, the automatic 5-minute cool-down period does not
occur. If you exit a program before completing it, the cool­down period is bypassed.

To prematurely end the 5-minute cool-down period, do the
following:

1. Grasp the handrail with one hand.

2. Press the red STOP button with your other hand. The
treadmill enters pause mode.

3. Press RESET to view the workout summary.

Pausing During a Workout or the Cool-Down Period

Press the red STOP button to pause anytime during a
workout or during a cool-down period. The pause mode is
limited to ten minutes. If you do not resume exercising during
that time, the display returns to the banner.

Press the RESET key to view the workout summary. Press
RESET again, to return to the Precor banner before the time
limit expires.

Note: To resume exercising from pause mode, press
SPEED ▲. If password protection is enabled, you are
prompted for the password.

4. Press RESET again to return to the Precor banner.

Owner’s Manual: Workout Options 23

Ending a Workout

CAUTION: Hold on to the handrail when you near the end
of a workout.

The treadmill stops the running belt when you complete the
automatic cool-down period. After the running belt stops,
time stops accruing.

The WORKOUT SUMMARY shows your cumulative
workout statistics including warm-up and cool-down periods.
Other information including speed and incline reset to zero.
Toggle between the TIME, DISTANCE, and CALORIES
displays using the SELECT key. You can review your workout
statistics for ten minutes before the display resets to the
banner.

Note: If you choose to work out with no set time limit, you
must manually end a program by pressing the red STOP
button. You can also press the SPEED ▼ key until the speed
is reduced to zero and the running belt stops.

Important: Do not assume the treadmill is safe because of
password protection. Never leave children unsupervised
around the treadmill.

Owner’s Manual: Workout Options 24

Programs

Diagram 7: M9.31 program label

This section describes the programs printed on the display
label. Refer to Diagram 7.

Choosing a Program

Choosing a program depends on your goals. If you are a
beginner or returning to regular exercise, you can start a
cardio-conditioning program to slowly return your body to a
comfortable level of exercise. If you have been exercising and
feel that you have an intermediate or advanced fitness level,
you probably have established goals. The Precor web site
(www.precor.com) can give you many ideas about fitness
workouts and advice from the experts.

Several workout choices on the treadmill are
preprogrammed with recommendations for incline levels,
pace, and alternating rest or work intervals. You always have
the option to override the suggested levels with the
exception of the Heart Rate Control (HRC) program.

If your level of exertion becomes too great, reduce your pace
or use the arrow keys to override each upcoming segment in
the program profile. If you use the arrow keys, the program
profile changes accordingly. When you complete a program
that contains a time limit, an automatic 5-minute cool-down
period begins.

Owner’s Manual: Programs 25

Table 3 shows a variety of program options.

Table 3. Program options

Preferences MANL INTV WTLS RAND HRC*

Preset incline X, ✝ X, ✝ XX

Preset speed X, ✝ X, ✝

Warm-up period X X

Fixed time limit X

Heart rate
controlled*

Arrow keys can
change speed or
incline

* Requires the chest strap be worn and the heart rate receiver

be installed.

✝ Indicates programs that repeat incline and speed preferences.

XXXX

X

Program Tips

• Work out indefinitely in any program (except Weight Loss).
At the time prompt, specify NOLIM. While you exercise,
TIME indicates the amount of time you have been
exercising. If you chose to exercise without a time limit, the
automatic 5-minute cool-down period is eliminated. You
will need to incorporate a cool-down period by accessing
the Manual program.

• Place a time limit on any program during the setup phase.
At the time prompt, specify the time duration for your
workout. While you exercise, TIME indicates the amount
of time remaining.

• A blinking column tracks the progress that you make
during a program.

Owner’s Manual: Programs 26

Manual (MANL) Program

Interval (INTV) Program

SmartRate

Above

Cardiovascular

MANL

Weight Loss

Below

You control incline and speed settings when you use the
Manual program. The profile begins as a flat line. Use the
arrow keys to change the speed or to adjust the incline. The
program profile reflects changes in all subsequent columns.
The blinking column indicates your position in the program.

If you press QUICKSTART at the banner and access the
Manual program, the workout time is unlimited. A cool-down

INTV

The Interval program is among the best for conditioning your
cardiovascular system. The program raises and lowers your
level of exertion repeatedly for a specified period of time.

When you begin the program, the speed and incline are
preprogrammed. You can change the speed and incline
levels using the arrow keys. Refer to Diagram 8. The settings
are repeated throughout the program.

SmartRate

Above

Cardiovascular

Weight Loss

Below

period does not automatically occur when you end your
workout. Always remember to incorporate a cool-down
period into your workout.

To use the SmartRate feature, you need to specify your age.
Refer to Selecting a Program.

Owner’s Manual: Programs 27

Rest interval Work interval

Diagram 8: Rest and work profile in the Interval program

To change a setting, press the appropriate arrow key and
continue. The change is applied to the remaining intervals.
The display lets you know when the incline or speed levels
are about to change, and indicates the levels of the next
segment.

When you complete the program, any changes made to the
incline and speed settings are not saved.

Random (Random) Program

SmartRate

Above

Cardiovascular

RAND

Every time the Random program is selected, a different
program profile appears. The columns that appear in the
program profile maintain a set incline that you can override
using the INCLINE arrow keys. The incline is preset to zero
for the first column. The maximum incline change allowed
between columns is plus or minus 4%.

The running belt speed is completely under your control and
can be adjusted using the SPEED arrow keys.

Weight Loss

Below

Owner’s Manual: Programs 28

Weight Loss (WTLS) Program

SmartRate

Above

Cardiovascular

WTLS

Weight Loss

Below

• Maintain a level of exertion so that the second LED blinks
in the SmartRate display during rest intervals.

• During the work intervals, increase your level of exertion so
that the fourth LED blinks.

For more information about the SmartRate display, refer to
Using SmartRate.

Note: If you want to purchase the heart rate feature, contact
your local dealer. Refer to Obtaining Service.

Rest interval

Work interval

With the Weight Loss program, the workout time is fixed at
28 minutes and consists of seven, 4-minute intervals. You are
not prompted for a workout time. Use the arrow keys to
change the speed or the incline for the rest or work interval.
Refer to Diagram 9. When you make changes, the program
repeats the settings for the remaining intervals.

Diagram 9: Rest and work intervals in Weight Loss program

For the ideal weight loss range, your heart rate should be
between 55% and 70% of your maximum aerobic heart rate.
If you wear the chest strap, you can use SmartRate as a
visual cue.

• Set a comfortable pace by adjusting the speed and
incline.

Owner’s Manual: Programs 29

Heart Rate Control (HRC) Program

SmartRate

Above

Cardiovascular

HRC

The Heart Rate Control program lets you set a target for your
heart rate. The program adjusts the incline to maintain your
heart rate within two beats per minute of the target heart rate
while you exercise. The initial target heart rate is determined
using a simple calculation:

(220 minus your age) multiplied by 70%

During your workout, the number that represents your heart
rate appears when the HEART RATE LED is lit.

For information about understanding your target heart rate,
refer to Heart Rate Features.

Weight Loss

Below

Important: Consult your physician to determine the
appropriate target heart rate for your age and fitness level.
If your physician recommends a different target heart rate
than the one that appears on the display, use the INCLINE
arrow keys to change the target heart rate once you finish
the warm-up period. Do not work out over the
recommended range.

Note: Review the heart rate feature Guidelines before
proceeding with the HRC program.

Warm-up Period

The treadmill provides a 3-minute warm-up period. During
this time, you may change the incline or speed.

Note: If your heart rate moves into the target heart rate zone
during the 3-minute warm-up period, the warm-up period
ends and the Heart Rate Control program begins.

Owner’s Manual: Programs 30

Using the HRC Program

When the warm-up period concludes,

• The treadmill automatically adjusts the incline to keep
your heart rate at the selected target. Pressing the
INCLINE arrow keys no longer affects the incline lift, but
does change the target heart rate. Check the SmartRate
display to see if you are maintaining your preferred zone
(weight loss or cardiovascular). Your actual heart rate
appears in the display when the HEART RATE LED is lit.

• You can change the target heart rate or speed of the
running belt, but doing so affects the unit’s ability to
maintain your target heart rate in the preferred zone. It
takes time for the treadmill to readjust the incline so that
your heart rate remains on target.

Note: If you are having difficulty with the heart rate
features, refer to Troubleshooting Heart Rate.

Owner’s Manual: Programs 31

Advanced Programming and Troubleshooting

Certain features remain hidden and can only be accessed
using special key presses. Read this section if you are
interested in learning how to:

• Change the display to U.S. Standard or Metric

• Enable or disable password protection

• View the odometer

• Display the number of hours you have used your treadmill

• View the software versions and part numbers

• Check the error log

Owner’s Manual: Advanced Programming and Troubleshooting 32

Advanced Programming Tips

• Always start at the scrolling Precor banner.

• The advanced programming and diagnostic mode is
accessed by pressing the RESET key while the Precor
banner is scrolling. The remaining key presses must occur
quickly and without pause.

• Use the SELECT and arrow keys while in the diagnostics
mode.

• The function of the QUICKSTART key is disabled while in
diagnostic mode.

• Exit the diagnostics mode by pressing the RESET key for
two or more seconds. The display remains blank for one
second and any additional key presses are ignored.

Selecting a U.S. Standard or Metric Display

The treadmill can display measurements in either U.S.
Standard or Metric. When the M9.31 treadmill is shipped
from the factory it is set to display U.S. Standard. To change
this setting, perform the following steps:

1. At the scrolling Precor banner, press the following keys in
sequence and without pause:

3. Press SELECT to accept the displayed setting. The
change will be retained in memory even if the treadmill is
turned OFF and unplugged.

4. To continue programming the treadmill to change
password protection, refer to Selecting Password
Protection.

5. If you want to end programming, press RESET.

RESET, SELECT, SPEED ▼, SPEED ▲, INCLINE ▲

Selecting Password Protection

As shown in Diagram 10, numbers are associated with the
keypad. The numbers 5, 6, 7, 1 appear on the display as
you press the associated key.

Note: The password protection program is part of a two-part
sequence that starts with the steps found in Selecting a U.S.
Standard or Metric Display.

6. PASSWORD: scrolls across the display, and then the

1

2

4

35

7

6

state of protection (enabled or disabled) appears. Any ▼
or ▲ key lets you alternate between the two selections.

Setting Description

Diagram 10: Keypad programming numbers

2. SELECT UNITS scrolls across the display, and then the
current unit of measure appears. Any ▼ or ▲ key lets you
alternate between the prompts.

Password Enabled Causes the password prompt to

appear prior to a workout and
when returning from Pause mode.

Password Disabled Lets you turn off the password

prompt. Use this option with
caution.

Owner’s Manual: Advanced Programming and Troubleshooting 33

CAUTION: Precor recommends that you leave the
password protection enabled. And remember, do not
allow children or those unfamiliar with its operation on
or near the treadmill. Do not leave children
unsupervised around the unit.

7. Press SELECT to accept the displayed setting.

The change will be retained in memory even if the treadmill
is turned OFF and unplugged.

8. To end the programming mode and return to the Precor
banner, press RESET.

Informational Displays

The treadmill provides information about its use (odometer
and hour meter), as well as software version and error log. In
general, you would only access this information if directed to
do so by Precor Customer Support.

These instructions guide you through all four informational
displays. Pressing the SELECT key moves you through the
displays. To exit, press the RESET key at any time.

Viewing the Odometer

1. At the Precor banner, press the following keys in
sequence without pause:

RESET, SPEED ▼, SELECT
Numbers 6, 5 appear on the display as you press the

associated key.

Then MILES: scrolls across the display followed by the
odometer value (the cumulative miles users have traveled).

Note: If the unit of measure is set to metric, then
KILOMETERS: scrolls instead of MILES:.

2. When you are ready, press SELECT to move to the next
display (hour meter).

Owner’s Manual: Advanced Programming and Troubleshooting 34

Viewing the Hour Meter

HOURS: scrolls across the display followed by the
number of hours that the unit has been in use. The
treadmill tracks the elapsed minutes, but the value that
appears is truncated to the nearest full hour.

3. When you are ready, press SELECT to move to the next
display (software version).

Viewing the Software Version and Part Numbers

UPPER SW: scrolls across the display followed by the
upper board software version and part number (for
example, 47475-205).

LOWER SW: scrolls across the display followed by the
lower board’s serial number, and then UPPER BOOT
scrolls across the display followed by the upper boot part
number.

4. Write the numbers in the space below. You will need these
numbers when you call Customer Support with display­related questions. This information will help rule out any
software-related problems:

Upper Board P/N: ________________________

Lower Board P/N: ________________________

Upper Boot Number: ______________________

5. When you are ready, press SELECT to move to the next
display (error log).

Viewing the Error Log

If there are any errors, the first error log entry scrolls
across the display. Up to ten error codes can be retrieved.

If there are no errors in the log, you will see NO MORE
ERRORS scroll past.

6. To view the error codes in the error log, use the arrow
keys. Each error code specifies when it occurred, listing
the odometer and hour meter values. Refer to Diagram 11.

Most recent error

The hour meter at the time
the error was detected.

1: ER33 AT 12,345,678 MILES 1,714 HOURS

Error code

Diagram 11: Error log

7. Copy the error code information to paper so you can
provide it to Customer Support if needed. Be sure to copy
it exactly as shown.

Odometer reading at the
time the error occurred.

Owner’s Manual: Advanced Programming and Troubleshooting 35

8. When you no longer need the information in the error log,
press QUICKSTART to erase the error log. While the error
log is displayed, maintain light pressure on the
QUICKSTART key until HOLD QUICKSTART TO CLEAR
ERROR LOG scrolls across past. Messages appear on
the display to let you know when the error log has been
cleared.

Important: You cannot retrieve the error log once you
have cleared it. You may want to resolve any issues you
are experiencing with the treadmill before clearing the
error log.

9. When you are ready, press SELECT or RESET to return
to the Precor banner.

Troubleshooting Error Codes

If any error codes appear in the center display, turn the
unit OFF and ON. If the error continues to occur, call an
authorized service person for assistance. Refer to

Obtaining Service.

Owner’s Manual: Advanced Programming and Troubleshooting 36

Troubleshooting Heart Rate

Table 4 may help you understand and troubleshoot erratic
heart rate readings.

Important: A heart rate can only be detected when the
Precor heart rate receiver is properly installed in the display,
and the treadmill is turned ON. You must also wear the
chest strap.

Table 4. Erratic heart rate readings

What appears on
the display Cause What to Do

Nothing The heart rate

receiver is not
installed or it
has been
disconnected.

— — — A heart rate is not

detected.

Pulsing HR LED The LED lights

briefly when a
heart beat is
detected.

To purchase the heart rate
option or receive
Customer Support, refer
to Obtaining Service.

Be sure the heart rate
receiver is installed
properly, and that the
chest strap is moist,
centered, and in direct
contact with your skin.

If the LED is pulsating,
it indicates that the
heart rate equipment is
working properly.

Note: To conduct electrical impulses from a user’s heart, the
electrode strips on the chest strap must be in contact with
the user’s skin. Usually, the concentration of salts in a
person’s perspiration provides enough conductivity to
transmit a signal to the receiver in the display console.
However, because of body chemistry or erratic heartbeats,
some people cannot use the heart rate feature.

Owner’s Manual: Advanced Programming and Troubleshooting 37

Maintenance

It is important to perform the minor maintenance tasks
described below. Failure to maintain the treadmill as
described in this section could void the Precor Limited
Warranty.

DANGER

To reduce the risk of electrical shock,
always unplug the unit from its
power source before cleaning it or
performing any maintenance tasks.

Inspection

Inspect the treadmill daily.

1. Look and listen for slipping belts, loose fasteners, unusual
noises, worn or frayed power cords, and any other
indications that the equipment may be in need of service.
If you notice any of these, obtain service.

Important: If you determine that the treadmill needs
service, ensure that the treadmill cannot be used
inadvertently. Turn the unit OFF, and then unplug the
power cord from its power source. Make sure other users
know that the treadmill needs service.

Owner’s Manual: Maintenance 38

2. Check for worn, frayed or missing security lanyards.
Replace missing or worn safety lanyards immediately.
Do not exercise on the treadmill without attaching the
security clip to your clothing.

To order parts or to contact a Precor authorized service
provider in your area, refer to Obtaining Service.

Cleaning the Equipment

Most of the working mechanisms are protected inside the
hood and base of the treadmill. However, for efficient
operation, the treadmill relies on low friction. To keep the
friction low, the unit’s running belt, staging platforms, and
internal mechanisms must be as clean as possible.

Precor recommends the treadmill be cleaned before and
after each workout. Use mild soap and water to dampen a
soft cloth and wipe all exposed surfaces. This helps remove
any dust or dirt.

CAUTION: Do not use any acidic cleaners. Doing so will
void the Precor Limited Warranty. Never pour water or
spray liquids on any part of the treadmill. Allow the
treadmill to dry completely before using.

Periodically, clean the running belt using a soft nylon scrub
brush. Frequently vacuum the floor underneath the unit to
prevent the accumulation of dust and dirt, which can affect
the smooth operation of the unit.

Storing the Chest Strap

Store the chest strap 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° F
(0° C).

To clean the chest strap, use a sponge or soft cloth
dampened in mild soap and water. Dry the surface
thoroughly with a clean towel.

Checking the Alignment of the Running Belt

Proper belt alignment allows the belt to remain centered and
ensures smooth operation. Realigning the belt takes a few
simple adjustments. If you are unsure about this procedure,
call Precor Customer Support. Refer to Obtaining Service.

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 and any other object clear of the belt and rollers,
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

1. The treadmill has adjustable rear feet. Make sure that the
running surface is level. If the treadmill is placed on an
uneven surface, adjusting the rear feet can help, but will
not compensate for extremely uneven surfaces.

2. Turn the unit ON.

3. Stand beside the treadmill and press QUICKSTART.

4. If needed, enter the password by pressing the following
keys in sequence: INCLINE ▼, SPEED ▼, SPEED ▲.

The running belt starts automatically after a 3-second
countdown appears on the display.

Owner’s Manual: Maintenance 39

5. Press the SPEED ▲ key until the display shows a speed
of 3 mph (5 kph).

CAUTION: If you hear any chafing or the running belt
appears to be getting damaged, stop the running belt
immediately by pressing the red STOP button. Contact
Precor Customer Support.

6. Walk around to the rear of the unit and observe the belt
for a few minutes. The belt should be centered on the
running belt. If the belt drifts off center, you must make
adjustments.

Important: If the belt needs alignment, make the
adjustments at once. Failure to align the belt may cause
the belt to tear or fray, which is not covered by the Precor
Limited Warranty.

7. To stop the running belt, press the red STOP button.

8. Turn the treadmill OFF.

Adjusting the Running Belt

If you are unsure about adjusting the running belt, call Precor
Customer Support (see Obtaining Service).

CAUTION: To ensure your safety, use the I/O power
switch to turn OFF the treadmill before making any
adjustments. Do not adjust the running belt when
someone is standing on the unit.

1. Locate the right belt adjustment bolt in the rear end cap of
the treadmill. Refer to Diagram 12.

Diagram 12: Adjusting belt location

To determine left and right, stand at the rear of the
treadmill and face the display. Make all belt adjustments
on the right rear corner bolt using the hex key provided.

Owner’s Manual: Maintenance 40

• If the belt is off center to the LEFT, turn the adjusting

bolt ¼ turn counterclockwise, which moves the running
belt to the right.

• If the belt tracks off center to the RIGHT, turn the bolt

¼ turn clockwise; this moves the belt to the left.

Important: Do not turn the adjusting bolt more than ¼
turn at a time. Overtightening the bolt can damage the
treadmill.

2. Recheck the alignment of the running belt.

Servicing the Treadmill

Do not attempt to service the treadmill yourself except for the
maintenance tasks described in this manual. The unit
does not contain any user-serviceable parts that require
lubrication. For information about product operation or
service, call 1-800-347-4404.

Long-Term Storage

When the treadmill is not in use for any length of time, turn it
OFF. Ensure that the power cord is unplugged from its
power source and is positioned so that it will not become
damaged or interfere with people or other equipment.

Owner’s Manual: Maintenance 41

Precor Residential Equipment Limited Warranty

PLEASE READ THESE WARRANTY TERMS AND CONDITIONS
CAREFULLY BEFORE USING YOUR PRECOR INCORPORATED
PRODUCT. BY USING THE EQUIPMENT, YOU ARE
CONSENTING TO BE BOUND BY THE FOLLOWING
WARRANTY TERMS AND CONDITIONS.

Limited Warranty

Precor Incorporated warrants all new Precor products to be free
from defects in materials and manufacture for the warranty period
set forth below. The warranty period commences on the invoice
date of original purchase. This warranty applies only against defects
discovered within the warranty period and extends only to the
original purchaser of the product. Parts repaired or replaced under
the terms of this warranty will be warranted for the remainder of the
original warranty period only. To make claim under warranty, the
buyer must notify Precor or their authorized Precor dealer within 30
days after the date of discovery of any nonconformity and make the
affected product available for inspection by Precor or its service
representative. Precor’s obligations under this warranty are limited
and set forth below.

Owner’s Manual: Precor Residential Equipment Limited Warranty 42

Warranty Periods and Coverage

All residential products and commercial products used in the home
are warranted for the following periods:

• Lifetime frame and welds

• 10 years parts and wear items

• 1 year labor

• Coverage for options and accessories defined below.

Options / Accessories

Many options or accessories have components that are connected
internally or mounted inside the electronic console. The following
guidelines determine the warranty for these components. If the
internal components are installed by the factory or by an authorized
dealer as part of the original sale and delivery, they have a warranty
that is identical to the warranty of the equipment in which they are
connected or mounted. If the internal components are not installed
by the factory or by an authorized dealer as part of the original sale
and delivery, they have a 90-day parts and labor limited warranty. All
components that are not internally connected have 90-day parts
only limited warranty. Satisfactory proof of purchase is required in
all cases.

Conditions and Restrictions

This warranty is valid only in accordance with the conditions set
forth below:

1. The warranty applies to the Precor product only while:
a. It remains in the possession of the original purchaser and

proof of purchase is demonstrated

b. It has not been subjected to accident, misuse, abuse,

improper service, or non-Precor modifications

c. Claims are made within the warranty period

2. This warranty does not cover damage or equipment failure
caused by electrical wiring not in compliance with electrical
codes or Precor owner’s manual specifications, or failure to
provide reasonable and necessary maintenance as outlined in
the owner’s manual.

3. Warranty of all Precor products applies to residential use only
and is void when products are used in a nonresidential
environment or installed in a country other than where sold.

4. Except in Canada, Precor does not pay labor outside the United
States.

5. Warranties outside the United States and Canada may vary.
Please contact your local Dealer for details.

This limited warranty shall not apply to:

1. Software version upgrades

2. Cosmetic items, including, but not limited to the following: grips,
seats, and labels.

3. Repairs performed on Precor equipment missing a serial number
or with a serial tag that has been altered or defaced.

4. Service calls to correct installation of the equipment or instruct
owners on how to use the equipment.

5. Pickup, delivery, or freight charges involved with repairs.

6. Any labor costs incurred beyond the applicable labor warranty
period.

Disclaimer and Release

The warranties provided herein are the exclusive warranties given
by Precor and supersede any prior, contrary or additional
representations, whether oral or written.

INCLUDING THE WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE THAT APPLY TO ANY PARTS
DESCRIBED ABOVE ARE LIMITED IN DURATION TO THE PERIODS OF
EXPRESS WARRANTIES GIVEN ABOVE FOR THOSE SAME PARTS.
PRECOR HEREBY DISCLAIMS AND EXCLUDES THOSE WARRANTIES
THEREAFTER

. Some states do not allow limitation on how long an

implied warranty lasts, so the above limitation may not apply to you.

PRECOR ALSO HEREBY DISCLAIMS AND EXCLUDES ALL OTHER
OBLIGATIONS OR LIABILITIES, EXPRESS OR IMPLIED, ARISING BY
LAW OR OTHERWISE, WITH RESPECT TO ANY NONCONFORMANCE
OR DEFECT IN ANY PRODUCT, INCLUDING BUT NOT LIMITED TO: (A)
ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN TORT,
WHETHER OR NOT ARISING FROM THE NEGLIGENCE OF PRECOR
OR ITS SUPPLIERS (WHETHER ACTIVE, PASSIVE OR IMPUTED); AND
(B) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM, OR REMEDY FOR
LOSS OF OR DAMAGE TO ANY EQUIPMENT.

release shall apply even if the express warranty set forth above fails
of its essential purpose.

ANY IMPLIED WARRANTIES,

This disclaimer and

Owner’s Manual: Precor Residential Equipment Limited Warranty 43

Exclusive Remedies

For any product described above that fails to conform to its
warranty, Precor will provide, at their option, one of the following:
(1) repair; (2) replacement; or (3) refund of the purchase price.
Precor Limited Warranty service may be obtained by contacting the
authorized dealer from whom you purchased the item. Precor
compensates Servicers for warranty trips within their normal service
area to repair equipment at the owner’s location. You may be
charged a trip charge outside the service area.

THE SOLE AND EXCLUSIVE REMEDIES OF THE BUYER FOR ANY
BREACH OF WARRANTY.

THESE SHALL BE

Exclusion of Consequential and Incidental
Damages

PRECOR AND/OR ITS SUPPLIERS SHALL HAVE NO OBLIGATION OR
LIABILITY, WHETHER ARISING IN CONTRACT (INCLUDING
WARRANTY), TORT (INCLUDING ACTIVE, PASSIVE, OR IMPUTED
NEGLIGENCE AND STRICT LIABILITY), OR OTHERWISE, FOR
DAMAGE TO THE EQUIPMENT, PROPERTY DAMAGE, LOSS OF USE,
REVENUE OR PROFIT, COST OF CAPITAL, COST OF SUBSTITUTE
EQUIPMENT, ADDITIONAL COST INCURRED BY BUYER (BY WAY OF
CORRECTION OR OTHERWISE) OR ANY OTHER INCIDENTAL,
SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, WHETHER
RESULTING FROM NONDELIVERY OR FROM THE USE, MISUSE OR
INABILITY TO USE THE PRODUCT.

above warranty fails of its essential purpose and regardless of
whether such damages are sought for breach of warranty, breach of
contract, negligence, or strict liability in tort or under any other legal
theory. Some states do not allow the exclusion or limitation of
incidental or consequential damages, so the above limitation might
not apply.

This warranty gives you specific legal rights, and you may also have
other rights, which vary state to state.

This exclusion applies even if the

Effective 01 January, 2003

P/N 36287-110

Owner’s Manual: Precor Residential Equipment Limited Warranty 44

Thank You and Welcome to Precor

To allow us to serve you better, please take a few moments to
complete and return your warranty registration.

YOU MAY ALSO REGISTER ONLINE AT

www.precor.com/warranty

If you have questions or need additional information, contact your
local dealer or call Precor Customer Support at 800-347-4404.

Fold along dotted line and tape closed before mailing.

Woodinville, WA 98072-4002
PO Box 7202
20031 142nd Avenue NE
Precor Incorporated

RET.

HERE

STAMP

PLACE

TELL US ABOUT YOUR NEW PRECOR PRODUCT

Product

Date of
Purchase:

Month

Day

Year

Serial
Number:

The serial number is located on the shipping box and on the product.

Purchased
from:

Dealer Name

Please indicate the type of product purchased:

❑ Elliptical Fitness CrossTrainer (EFX®)
❑ Treadmill
❑ Strength Training System

❑ StretchTrainer
❑ Cycle
❑ Stair Climber

TELL US ABOUT YOU

❑ Mr.
❑ Mrs.
❑ Ms.

First Name

Middle Initial Last Name

TM

Street Address

Area Code

Your Email Address

Zip CodeCity State

Telephone

Apt./Suite:

Gender: Marital status: Age: Annual household income: What are your fitness goals?

❑ Male ❑ Married ❑ Under 18 ❑ Under $50,000 ❑ Weight loss/management
❑ Female ❑ Divorced ❑ 18-24 ❑ $51,000-75,000 ❑ Muscle tone enhancement

❑ Widowed ❑ 25-34 ❑ $76,000-100,000 ❑ Cardiovascular improvement
❑ Never been married ❑ 35-44 ❑ $101,000-150,000 ❑ Overall health

❑ 45-54 ❑ $151,000+ ❑ Increase energy and flexibility
❑ 55-64 ❑ Stress reduction
❑ 65+ ❑ Rehabilitation

❑ Other

TELL US ABOUT YOUR PURCHASE

Purchase (check all that apply): How did you FIRST become aware of Precor

❑ First Precor product products (choose only one):
❑ Replaces a Precor product of the same type ❑ A gift
❑ Replaces same type of product – different brand ❑ Friend/relative
❑ Addition to equipment currently owned ❑ Physician

❑ Fitness club

What factors MOST influenced your decision to ❑ Internet
purchase your Precor product (choose up to three): ❑ News report or product review

❑ Precor reputation ❑ Magazine advertisement or article
❑ Prior use of Precor product(s) ❑ Print advertisement
❑ Design/appearance ❑ In-store display or demonstration
❑ Value for the price ❑ Other
❑ Special product features
❑ Rebate or sale price
❑ Quality/durability
❑ Warranty
❑ Physician recommendation

Effective 28 June 2004

P/N 45623-102

Please detach and mail in the warranty registration within ten days of purchase.

M9.31 Low Impact Treadmill

Product Specifications Product Features

Length: 79 in (201 cm)
Width: 34 in (84 cm)
Height: 55 in (140 cm)
Weight: 285 lb (130 kg)
Shipping weight: 350 lb (159 kg)
Running surface: 57 in x 20 in

(145 cm x 51 cm)
Motor: 2.75 hp Continuous duty
Power: 120 VAC, 50/60Hz
Speed: 0.5–11 mph (1–18 kph)
Incline: 0%–15% grade

QuickStart
Reversible Deck
SmartRate
Touch-Sensitive Display
Password Protection
Heart Rate Telemetry (optional purchase)

M9.31 Programs:

Manual
Interval
Weight Loss*
Random
Heart Rate Control*

TM

®

Frame: Powder-coated steel
Regulatory

Approvals: FCC, ETL, CE

Precor, C, CrossRamp, EFX, M, Move Beyond, and SmartRate are registered trademarks of Precor
Incorporated. Crosstrainer, QuickStart, and StretchTrainer are trademarks of Precor Incorporated.
Copyright 2004 Precor Incorporated.
Specifications subject to change without notice.

www.precor.com

NOTICE:

Precor is widely recognized for its innovative, award winning designs of exercise equipment.

Precor Incorporated
20031 142nd Ave NE
P.O . B ox 7 202
Woodinville, WA USA 98072-4002

Precor aggressively seeks U.S. and foreign patents for both the mechanical construction and the
visual aspects of its product design. Any party contemplating the use of Precor’s product 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.

Display Readouts:

Calories Scan
Distance SmartRate*
Heart Rate* Speed
Incline Time
Profile

* Chest strap required. The optional heart rate

receiver must be installed in the display console.

M9.31 48197-102, en

Warranty # 36287-110, en

Registration Card# 45623-102, en

04 November 2004

QUICKSTART

CAUTION: Before using the treadmill, read all these

instructions. Failure to do so may result in serious injury.

i

TM

Begin Your Workout with QUICKSTART

 Do not allow people unfamiliar with its operation,

or children, on or near the treadmill.

 Consult with your physician and receive a

thorough physical examination. Know your
physician-recommended heart rate target
zone.

 At the beginning of a workout, straddle

the belt by placing your feet firmly on
the right and left staging platforms.

 Always face the display and use the

handrail for balance. Never attempt
to turn around on the treadmill
while the running belt is moving.

 Keep hands and clothing away

from the belt and rear roller.

 If you feel pain, faintness, or

dizziness, stop exercising
immediately.

Use the Security Clip

Always attach the security clip to
your clothing before each workout.
A tug on the lanyard trips the
security switch inside the display
and stops the running belt.
If the security switch trips while
you are exercising, the treadmill
retains your workout statistics
and enters pause mode. To
resume your workout, reattach
the security clip to your clothing,
enter the password, and then
press the SPEED ▲ key.

Workout Tips



Before and after a workout, gently stretch your lower

body and back to help prevent stiffness or soreness.



At the beginning of a workout, take several minutes
to bring your heart rate into your target zone (shown
in Diagram D on the other side of this card).



Incorporate a cool-down period into your workout
to help lower your heart rate and minimize muscle
stiffness or soreness.



Keys on the keypad respond to the slightest touch.
Use gentle pressure on the keys as you exercise.



If your treadmill supports the hand-held heart rate
feature, use both hands to grasp the touch-sensitive
handrail grips to display your heart rate.

9.31

9.33

9.35

1. Turn ON the treadmill, using the I/O power switch on
the front panel.

2. Step on the treadmill.

3. Face the display and straddle the running belt.

4. Attach the security clip to your clothing.

5. Hold on to the handrail with one hand.

6. Press QUICKSTART.

7. If needed, enter the password. Refer to your owner’s
manual.

A 3-second countdown appears, and then the running
belt starts moving. The Manual program begins.

Note: If you prefer a different program, refer to your
owner’s manual.

8. Step on to the running belt with the speed at 1 mph
(1 kph), and begin your workout.

 To increase the belt speed, press SPEED ▲.
 To increase or decrease the incline or speed, use

the INCLINE ▲ ▼ or SPEED ▲ ▼ keys.
 To pause, press the red STOP button.

9. Enter a cool-down phase by lowering the speed
and incline. End your workout by pressing the red
STOP button.

10. Press RESET to display your workout summary. The
display shows your cumulative time, distance, and the
number of calories burned during your workout.

11. Remove the security clip from your clothing and hold
on to the handrail as you step off the treadmill.

12. To prevent unauthorized use, turn the treadmill OFF.

M9.3x 48199-102, 04 Novermber 2004, en

Choose a Program



Determine your level of fitness: beginner,

intermediate, or advanced.



Determine your immediate goal: endurance

training, cardio-conditioning, or weight loss.

If you are a beginner, start a cardio-conditioning
program to slowly adjust your body to a comfortable
level of exercise. Over a recommended 8-week
period, you will increase your endurance and
strength while improving flexibility.

If you have been exercising and feel that you have
reached an intermediate or advanced fitness level,
you probably have established goals for yourself.

For all fitness levels, plan to exercise at a comfortable
pace for 20 to 30 minutes a day. Wear a chest strap
to monitor your heart rate. Supplement your plans
with fitness workouts from the Precor website
(www.precor.com). The Precor website provides
numerous fitness workouts and expert advice to
help you reach your fitness goals.

Wear a Chest Strap

During a workout, the heart rate features appear on
the display when you wear a chest strap. To receive
an accurate reading, the strap needs to be in direct
contact with your skin. Be sure to wear the chest
strap underneath your clothing.

Note: The Precor heart rate receiver must be
properly installed in the display console before a
heartbeat can be detected. Check with your dealer
to make sure it is installed in your product.

1. Carefully dampen the back of the strap with tap
water (Diagram A).

Important: Do not use deionized water. It does
not have the proper minerals and salts to conduct
electrical impulses.

2. Adjust the strap and fasten it around your chest.
The strap should feel snug, not restrictive
(Diagram B).

3.

Make sure that the chest strap is right side up, lies
horizontally across your chest, and is centered in
the middle of your chest (Diagram C).

Diagram A Diagram B Diagram C

When these steps are complete, you are ready to
view your heart rate!

SmartRate® and Heart Rate Features

The SmartRate and heart rate displays provide visual
cues that help you adjust your fitness routine to reach
your goals. Use these features to keep your heart rate
within the target zones for weight loss or cardio­conditioning.

When you begin a workout, a blinking segment in
the SmartRate display appears if you entered your
age during the setup phase. The blinking segment
indicates the current zone of your heart rate: weight
loss or cardiovascular. For the ideal weight loss
range, your heart rate should remain between 55%
and 70% of your maximum aerobic heart rate. To
improve your overall cardiovascular and respiratory
fitness level, maintain your heart rate between 70%
and 85% of your maximum aerobic heart rate.

For the greatest benefits, maintain your heart rate in
either zone (weight loss or cardiovascular) for 30
minutes or more at least three times a week.

CAUTION: Your heart rate should never exceed
85% of your maximum aerobic heart rate or go
above your target zone (Diagram D).

200

190

180

170

160

150

140

130

120

110

100

90

80

70

20 25 30 35 40 45 50 55 60 65 70 75

Diagram D

Cool Down After Your Workout

Cooling down is an important aspect of your workout
because it helps reduce muscle stiffness and soreness
by transporting excess lactic acid out of the working
muscles. Cooling down for at least three minutes helps
provide a smooth transition that allows your heart rate
to return to its normal, non-exercising state.

©2004 Precor Incorporated

Precor Incorporated

20031 142nd Avenue NE

P.O. Box 7202

Woodinville, WA USA 98072-4002

www.precor.com

Assembly Guide

9.31

9.33

9.35

Low-Impact Treadmills

Thank you for choosing Precor. For proper installation, please read
this guide thoroughly and follow the assembly instructions. If you do
not assemble the treadmill according to these guidelines, you could
void the Precor Limited Warranty.

Obtaining Service

You should not attempt to service the treadmill except for minor belt
adjustments and maintenance as described in the owner’s manual.
For information about product operation or service, refer to the
Precor web site at www.precor.com or call Precor Customer Support
at 1-800-347-4404. If any items are missing, contact the dealer from
whom you purchased the unit or call 1-800-4-PRECOR for the
dealer nearest you.

Installation Requirements

Follow these installation requirements when assembling the unit:

• Assemble the unit near the location where you plan to use it.

• Provide ample space around the unit.
Open space around the unit allows for easier access.

• Set up the unit on a solid, flat surface.
A smooth, flat surface under the unit helps keep it level. A level
unit has fewer malfunctions.

• Open the box and assemble the components in the sequence

presented in this guide.

• Insert all bolts in the same direction.
For aesthetic purposes, insert all the bolts in the same direction
unless specified (in text or illustrations) to do otherwise.

Unpacking the Equipment

The treadmill is carefully tested and inspected before shipment. The
unit is shipped in one box. Ask for help form two or more people to
unpack and assemble the treadmill.

Required Tools

• ½-inch box end or crescent wrench

• String

•Tape

• Wire tie cutter

• Leave room for adjustments.
Tighten fasteners (bolts, nuts, and screws), so the unit is stable,
but leave room for adjustments. Do not fully tighten fasteners until
instructed to do so.

M9.3x Low-Impact Treadmills Assembly Guide 2

Hardware Kit

Fasteners Quantity

(A )Socket head screw

(2-inch)

(B) Barrel spacer 4

(C)Socket head screw

(¾-inch)

(D) Washer

( ⁵⁄₁₆-inch x .562 OD)

(E) Socket head screws

(1¼-inch)

(F) Washer

(⁵⁄₁₆-inch x .688 OD)

10

16

1—¼-inch hex key

4

2

4

(G)Socket head screw

(1-inch)

M9.3x Low-Impact Treadmills Assembly Guide 3

4

Assembly Steps

Use a ¼-inch hex key and ½-inch
box end wrench to remove the
four shipping fasteners on the
front panel. Discard the fasteners.

Unwrap the cable and feed it through
the right side upright. Tape the cable
to the top.

Place the right side upright into the base
frame side bracket. Secure the upright to
the front panel using two socket head
screws (C). Secure the upright to the
side bracket using two socket head
screws (A), two washers (D), and two
barrel spacers (B). Finger tighten.

Important: Do not stretch, crimp, or
damage the cable. Cables damaged by
improper installation will not be covered
by the Precor Limited Warranty.

Attach the display console using
four socket head screws (G)
and four washers (D). Finger
tighten.

Place the left side upright into the base
frame side bracket. Secure the upright
to the front panel using two socket
head screws (C). Secure the upright to
the side bracket using two socket head
screws (A), two washers (D), and two
barrel spacers (B). Finger tighten.

M9.3x Low-Impact Treadmills Assembly Guide 4

Hold the cable while you remove
the tape. Connect the cable to
its receptacle. Slide the cable
into the clip on the underside of
the display console.

To install the handrail, raise the incline.

CAUTION: Do not stand on the treadmill
while raising the incline.

a. Plug the treadmill into a power outlet.

Locate the I/O power switch on the front
panel and turn the unit ON.

b. Stand beside the treadmill and press

QUICKSTART. If you are prompted for a
password, press
INCLINE ▼,SPEED▼,SPEED▲.

c. When the running belt begins moving,

press the INCLINE ▲ key until the display
shows an incline of 15.

d. When the lift stops moving, press the red

STOP button, and then turn the treadmill
OFF.

Use the ¼-inch hex key to remove the four
handrail clamp screws. Set the lower handrail
clamp and fasteners aside.

Slide the ends of the handrails toward the
center handrail clamp and secure them to
each side bracket using two socket head
screws (C) and two washers (F). Finger
tighten.

Attach the lower portion of the handrails
to the side rails using four socket head
screws (C) and four washers (D). Finger
tighten.

Note: To complete the M9.31 assembly,
skip steps 11 and 12 and continue with
step 13.

On the M9.35 and M9.33, heart rate
cables protrude from the ends of both
handrails. Slide the end of each cable into
its receptacle. Place excess cable inside
the handrail clamp.

Important: The cable receptacles mirror
the connectors so that they cannot be
improperly installed. Do not force a
connection! Take time and look for the
tabs on the connectors.

M9.3x Low-Impact Treadmills Assembly Guide 5

Test the heart rate feature on the M9.33 and M9.35.

a. Turn the unit ON. The Precor banner appears in the display.
b. Face the display and straddle the running belt.
c. Place both hands on the touch-sensitive handrail grips. The letters

Hr begin to blink in the Heart Rate display indicating that a signal
is being transmitted. A heart rate appears within 15 seconds if you
continue holding both grips.

d. When the test is completed, turn the treadmill OFF and continue

with step 13.

Note: If the blinking Hr does not appear, turn the unit OFF. Recheck
the cable connections beneath the handrail clamp and ask someone
else to test the heart rate feature.

Tighten all mounting screws.

Replace the lower handrail
clamp using the fasteners
removed in step 8. Finger
tighten.

Secure the handrails to the
lower handrail clamp using
two socket head screws (E)
and two washers (F).

a. Start at the front of the unit and alternately

tighten the four front panel screws.
b. Wrench tighten the four side upright screws.
c. Wrench tighten the two handrail side screws.
d. Wrench tighten the six handrail clamp screws.
e. Wrench tighten the four side rail screws at the

base of the handrails.

Lower the treadmill incline to zero using the
INCLINE ▼ key. Turn the treadmill OFF.

Make sure the power cord is plugged into an
appropriate outlet.

Important: The treadmill requires a dedicated,
grounded circuit. A 20-amp circuit is
recommended. Refer to Grounding Instructions
in the owner’s manual.

Check the alignment and adjust the running belt.
For instructions, refer to Checking the Alignment
and Adjusting the Running Belt.

M9.3x Low-Impact Treadmills Assembly Guide 6

Checking the Alignment and Adjusting the Running Belt

Proper belt alignment allows the belt to remain centered and ensures
smooth operation. Realigning the belt takes a few simple
adjustments. If you are unsure about this procedure, call Precor
Customer Support at 1-800-347-4404.

To check the alignment:

1. The treadmill has adjustable rear feet. Make sure that the running
surface is level. If the treadmill is placed on an uneven surface,
adjusting the rear feet can help, but will not compensate for
extremely uneven surfaces.

Important: Do not raise or lower the unit beyond 2 centimeters
(¾ inch). Check the level of the unit after each adjustment.

2. Turn the unit ON.

3. Stand beside the treadmill and press QUICKSTART.

4. If you are prompted for a password, press
INCLINE ▼, SPEED ▼, SPEED ▲. The running belt starts
automatically after the 3-second countdown appears on the
display.

5. Press the SPEED s key until the display shows a speed of 3 mph
(5 kph).

To adjust the running belt:

CAUTION: To ensure your safety, turn OFF (O) the treadmill
before making any adjustments.

1. Locate the right belt adjustment bolt in the rear end cap of the
treadmill. (To determine left and right, stand at the rear of the
treadmill and face the display.) Make all belt adjustments on the
right rear corner bolt using the ¼-inch hex key.

• If the belt is off center to the LEFT,

turn the adjusting bolt ¼ turn
counterclockwise, which moves the
running belt to the right.

• If the belt tracks off center to the

RIGHT, turn the bolt ¼ turn
clockwise; this moves the belt to
the left.

Important: Do not turn the adjusting
bolt more than ¼ turn at a time. Overtightening the bolt can
damage the treadmill.

2. Recheck the alignment of the running belt.

6. Walk around to the rear of the unit and observe the belt for a few
minutes. The belt should run centered along the running bed. If
the belt drifts off center, you will need to make adjustments.

Important: If the belt needs alignment, make the adjustments
immediately after turning the treadmill OFF. Failure to do so may
cause the belt to tear or fray, which is not covered by the Precor
Limited Warranty.

7. To stop the running belt, press the red STOP button.

8. Turn the treadmill OFF.

M9.3x Low-Impact Treadmills Assembly Guide 7

Precor Incorporated
20031 142nd Avenue NE
P.O. Box 72 0 2
Woodinville, WA USA 98072-4002

M9.3x Low-Impact Treadmills Assembly Guide 8

©2005 Precor Incorporated

www.precor.com

M9.3x Online AG 48202-403

28 March 2005