Precor 9.31 User manual

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Owner’s Manual
Low Impact Treadmill

page 2
When using an electrical appliance, basic precautions should always be taken,
including the following:
• Read all instructions before using the M9.31 treadmill.These instructions
are written to ensure your safety and to protect the unit.
Before beginning any fitness program, you should obtain a complete physical
examination by your physician.
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
To reduce the risk of electrical shock always unplug the treadmill from the
electrical outlet immediately after using and before cleaning.
WARNING
To reduce the risk of burns, fire, electric shock, or injury to persons, take the
following precautions:
• Do not allow children or those unfamiliar with its operation on or near the
M9.31 treadmill. Do not leave children unsupervised around the treadmill.
•Never leave the M9.31 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 tread-
mill 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.) Run through a check list prior to each use. Make sure that all
fasteners are secure and the belt is clean and running smoothly.
• Use the M9.31 only for its intended purpose as described in this manual. Do
not use accessory attachments that are not recommended by the manufac-
turer—such attachments might cause injuries.
• Never operate the unit if it is damaged, if it is not working properly, if it has
been dropped, or dropped in water. Return the M9.31 to a service center for
examination and repair.
• Keep the power cord and plug away from heated surfaces.
• Do not operate where aerosol (spray) products are being used or where
oxygen is being administered.
• 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.
• When the treadmill is not in use, disconnect the unit by turning the power switch
to the OFF (O) position, then remove the power plug from the wall outlet.
• Do not attempt to service the treadmill yourself other than the assembly and
maintenance instructions found in this manual. If you plan to adjust the
running belt or work near the rear roller, turn OFF (O) and unplug the tread-
mill. Do not adjust the running belt when someone is standing on the unit.
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS

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• Never turn ON the treadmill when someone is standing on the machine.
• 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.
• Use care when getting on or off the treadmill. Always grasp the handrail when
stepping onto the running belt and keep the initial speed at or below 1 mph
(1.5 kph). 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.
• Keep your body and head facing forward. Never attempt to turn around on
the treadmill when the running belt is moving.
• The security clip should be attached at waist level prior to beginning a
workout. A cord connects the security clip to the red STOP button on the
console. If you encounter difficulties, a strong tug on the security cord or a
quick tap on the red STOP button will stop the running belt.
• To help prevent unauthorized use, the M9.31 is equipped with password
protection.The password involves entering three keys in sequence. Refer
to
Entering a Password on page 19.
• Do not rock the unit. Do not stand on the handrail(s), display console, or hood.
• Never drop or insert objects into any opening.Keep hands and towels away from
moving parts.The running belt will not stop immediately if an object be-
comes caught in the belt or rollers.
• Keep all electrical components, such as the motor, power cord, and I/O
switch, away from liquids to prevent shock. Do not set anything on the
handrail, display console, or hood. Place liquids, magazines and books in
the appropriate receptacles.
• Do not overexert yourself or work to exhaustion. If you feel any pain or
abnormal symptoms, stop your workout immediately and consult your
physician.
WARNING
Connect the M9.31 to a properly grounded outlet only.The M9.31 treadmill must be
connected to a dedicated, grounded circuit. See Grounding Instructions on page 5.
Safety Approval
When identified with the ETL-c logo, the treadmill has been tested and conforms to
the requirements of CAN/CSA-E-335-1/3-94, Safety of Household and Similar
Electrical Appliances.
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.
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS

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Radio Frequency Interference (RFI)
Federal Communications Commission, Part 15
The M9.31 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 installa-
tion.The M9.31 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 M9.31 treadmill does cause harmful interference to radio or television recep-
tion, which can be determined by turning the M9.31 treadmill 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 treadmill and the receiver (TV, radio, etc.).
• Connect the 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 an experienced radio/TV technician for help.
CAUTION
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 Communica-
tions du Canada.
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:
EN55022, Limits & Methods of Measurement of Radio Interference, Information
Technology Equipment (Class A).
EN50082-1, Generic Immunity Standard for Residential, Commercial and Light
Industrial Products (Class A).
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.
Per FCC rules, changes or modifications to the
treadmill not expressly approved by Precor could
void the user’s authority to operate the equipment.

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Grounding Instructions
The M9.31 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 accor-
dance with all local codes and ordinances. If you do not follow these Grounding
Instructions , you could void the Precor limited warranty.
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.
120V Units Designated for U.S. Markets
The M9.31 treadmill must be connected to a dedicated, grounded circuit having a
nominal rating of 120-volts. A 20 amp circuit is recommended. The treadmill’s
grounding plug looks like the plug illustrated in Diagram 1.The power outlet must have
the same configuration as the plug. No adapter should be used with this product.
ATTENTION: HauteTension
Débranchez avant de réparer
Diagram 1
Correct power outlet for
U.S. Markets: 15 amp 120-volts.
120-volt grounding plug

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Important Safety Instructions............................................................. 2
Safety Approval ................................................................................. 3
Radio Frequency Interference (RFI).................................................. 4
European Applications ...................................................................... 4
Grounding Instructions ...................................................................... 5
BeforeYou Begin ..............................................................9
Obtaining Service .............................................................................. 9
Unpacking the M9.31 Low Impact Treadmill ...................................... 9
Other Equipment ............................................................................... 9
Hardware Kit.................................................................................... 10
Acquiring the Appropriate Tools ...................................................... 10
Setting Up theTreadmill.................................................11
Installation Requirements................................................................ 11
Assembly Instructions ..................................................................... 11
Turning the Unit ON and OFF.......................................................... 18
Checking the Alignment of the Running Belt................................... 18
Using the M9.31Treadmill..............................................19
Safety Features ............................................................................... 19
Using the Security Clip .................................................................... 19
Using the Handrails ......................................................................... 19
Entering a Password ....................................................................... 19
Workout Tips.................................................................................... 20
Quick Steps to Working Out ............................................................ 21
Cooling Down AfterYour Workout.................................................... 22
Pause, Workout Summary, and Exit Features ................................. 23
The M9.31 Display ..........................................................24
Features on the Display Console .................................................... 24
SmartRate® Display ........................................................................ 24
Heart Rate Display .......................................................................... 25
Center Display during a Workout..................................................... 25
Setup Mode and Prompts................................................................ 26
The Setup Mode and QuickStartTM Feature..................................... 27
The M9.31 Keypad ..........................................................28
Keypad Tips ..................................................................................... 28
Keys on the Keypad......................................................................... 28
Changing the Display Features Using the SELECT key ................. 30
Table of Contents
1
2
3
4
5

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6
7
Advanced ProgrammingTechniques............................31
Programming Tips ........................................................................... 31
Selecting a U.S. Standard or Metric Display.................................... 31
Securing the Treadmill with a Password .......................................... 32
Viewing the Odometer, Hours of Use,
Software Version, and Error Log...................................................... 32
The M9.31 Courses.........................................................33
Course Features and Course Descriptions .......................................34
Heart Rate Capabilities ..................................................37
Using the SmartRate®Feature ..........................................................37
Using Heart Rate Capabilities ...........................................................37
Heart Rate Course ............................................................................38
Maintaining theTreadmill...............................................40
Cleaning the Equipment ....................................................................40
Aligning the Running Belt ..................................................................40
Servicing the Treadmill ......................................................................41
Long Term Storage ............................................................................41
Exploded Views .................................................................................42
Warranty Card ...................................................................................50
Specifications ..................................................................... back cover
8
9

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Notes: :

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Thank you for purchasing the Precor M9.31 Low ImpactTreadmill. Precor has incorporated
an innovative design and some of the most popular features in the health and fitness
industry into the M9.31 product line.
Ground Effects allows the treadmill’s running bed to absorb and cushion the shock of
walking or running by utilizing specially formulated elastomeric springs. Integrated
Footplant Technology (IFT) replicates the natural walking and running motion of your
feet which helps reduce shock and pounding to your body.
The M9.31 offers an interactive display that lets you select data and control your
workout session. Precor SmartRate® provides the latest in cardiac monitoring. It’s a visual
aid that lets you see your heart rate with a glance,
Note: For the heart rate features to appear, the optional heart rate receiver must be
purchased and installed in the display console. A POLAR®chest strap must be worn
during your workout.Refer to Other Equipment below.
The M9.31 Low ImpactTreadmill is for household use only. It has many unique features
which set it apart from conventional treadmills.To maximize your use of the treadmill,
please study this guide thoroughly.
Obtaining Service
Do not attempt to service the M9.31 Low Impact Treadmill yourself except for minor
belt adjustments and maintenance as described in this manual.The M9.31 treadmill
does not contain any user-serviceable parts. For information about product operation or
service, check out the Precor web site at www.precor.com or call Precor Customer
Support at 1-800-347-4404.
If you have any questions regarding the treadmill, use the model and serial numbers
whenever you contact Precor Customer Support.
The serial number can be found on the shipping container or on the label near the
power receptacle. For future reference, write the serial and model number and date of
purchase in the space provided below.
Model #: ________ Serial #: _________________________ Date purchased: ____
Unpacking the M9.31 Low ImpactTreadmill
The M9.31 treadmill is carefully tested and inspected before shipment.Precor ships
the unit in components, as listed below:
• Running bed assembly
• Right and left upright supports
• Display console
• Right and left center handrail (two sections) — found inside cardboard packing.
• Right and left center handrail side covers — packaged inside a plastic bag.
• Power cord — packaged inside the shipping container in a plastic bag.
• Hardware kit — shrinkwrapped to cardboard.
• Owner’s manual — packaged inside the shipping container in a plastic bag.
Other Equipment
An additional POLAR®chest strap can be purchased by calling Retail Sales at
1-800-786-8404 or visiting the Precor web site at www.precor.com.
Before You Begin
1
This manual explains how to assemble, use,
and maintain the M9.31 Low Impact Tread-
mill.The following conventions are used in
this manual.
Note: Contains additional information that
applies to the preceding text.
Important: Indicates information to which
you should pay special attention.
CAUTION: Indicates steps or information
necessary to prevent harm to yourself or
damage to the equipment.
WARNING: Provides instructions to
prevent electrical damage to the equipment
and prevent injuries to yourself or others.
DANGER: Indicates steps you must
take to prevent electrical shock.
CAUTION:This unit weighs over 250
pounds (113 kilograms).To avoid injury
and to ensure the safety of the unit and
yourself, get adequate assistance before
unpacking your treadmill. Break down the
container’s side walls before removing
anything from the box.
Look inside
the cardboard
packing material shaped
like this to find the
center handrails.

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Diagram 2 Hardware kit.
AC
D
B
Carefully unpack the pieces of the treadmill and lay them on the floor near the
location where you plan to use the treadmill.
Hardware Kit
After unpacking the treadmill, open the hardware kit (refer to Diagram 2) and make
sure that you have the following items:
❑(A) four 2-inch long socket head screws — mount upright supports to base
❑(B) four barrel spacers — place on 2-inch screws
❑(C) fourteen ¾-inch long socket head screws
❑(D) sixteen flat washers
❑(E) four large diameter washers — place on handrail side bracket screws
❑(F) two 1½-inch socket head screws — handrail clamp assembly
❑(G) ¼-inch hex key — 3 inches by 10 inches
If any items are missing, refer to
Obtaining Service on page 9.
Note: After assembling the treadmill, you will have four ¾-inch long socket head
screws (C) and four flat washers (D) remaining.You can discard them if you wish.
Also, be sure to store the hex key in a secure place. It is used for specific mainte-
nance procedures that are described in this manual.
Acquire AdditionalTools
Obtain the following tools before assembling the treadmill.
❑Wire cutter
❑½-inch box end wrench (or crescent wrench)
❑Bubble level
❑Medium weight string
E
F
G

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You do not need any special knowledge or experience to set up the treadmill.
However, you will need assistance during assembly.
Installation Requirements
Follow these installation requirements when installing the treadmill. If you do not install the
treadmill according to the following guidelines, you could void the Precor limited warranty.
•Set up the treadmill on a solid, flat surface. Unpack and assemble the treadmill
close to where you plan to use it.Make sure that the surface under the unit is
smooth and level. A level unit is required for the user’s safety and proper operation.
•Provide ample space around the unit. Open space around the unit makes for a
safer mount and dismount.
•Fill out and mail the limited warranty card.The serial number can be found on
the shipping container or on the label near the power receptacle. Write the serial
number onto the Precor limited warranty card found inside the back cover of this
manual and in the
Obtaining Service section on page 9.
•Use the appropriate voltage, dedicated circuit, and grounding as specified on
the treadmill. A 20 amp circuit is recommended.
Assembly Instructions
To assemble the treadmill, take the following steps.
1. Obtain adult assistance. Have your assistants help place the shipping carton
close to the location where you plan to use the treadmill.Break down the side
walls of the shipping carton so that they lie flat. Remove the loose contents.
2. Make sure that the power switch is OFF.Check the ON/OFF power switch on
the front of the treadmill. Place the switch in the O (OFF) position.Make sure that
the treadmill is not plugged into a power source.
3. Move the treadmill. Diagram 3.To avoid injury to yourself or damage to the unit,
ask for help in placing the treadmill where you plan to use it. Diagram 3 illustrates
how to properly lift the rear end so that you can roll it on its front wheels.
CAUTION: Before assembling (or
disassembling) the unit, turn OFF the
treadmill and unplug it from the power
outlet. Do not assemble (or disassemble)
the treadmill if it is plugged into a power
source.To avoid injury and ensure your
safety, get assistance before lifting the
treadmill out of the box and rolling it onto
the floor. Do not drop the unit.
Setting Up the Treadmill
2
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.
Diagram 3
Lift rear by placing
hands on opposite
sides of the cross
brace that is found
under the rear cover.
Lift the rear of the
unit and roll it to its
assembly location.
End cap
CAUTION:Do not lift the rear end of the
treadmill by grasping the rear roller or the
end cap.The running belt can move and
the end caps can break off which may
cause injury to you or to the unit.

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Diagram 5 Route the cable.
Route cable
through hole.
Diagram 4
4. Remove the shipping fasteners from the front panel. Diagram 4.With the
supplied hex key and a ½-inch box end wrench, loosen and remove the 4 bolts,
washers and nuts on the front panel.These fasteners are used during shipping to
hold the front plate in place. Discard the fasteners.
5. Remove any tape or wire ties securing the display cable to the side of the unit.
6. Route the display cable. Diagram 5.Unwrap the cable and remove any kinks.
Have an assistant hold the right upright support close to the base while you
route the cable through it.
Note: Attaching a string to the cable with a washer tied to the opposite end of the
string may help you route the cable through the upright support.
CAUTION:To avoid damage to the display
cable, read and follow these steps care-
fully. Damage to the cable due to improper
assembly is not covered by the Precor
limited warranty.
Remove the shipping
fasteners from the
front panel.
Front panel
The shipping
fasteners are found
on the right and left
sides of the front
panel.
Right side
mounting bracket
Right side upright
support
Display cable
Loosen the fasteners
with a hex key while
holding the nut with
a crescent or box
end wrench.

page 13
7. Attach the right side upright support to the base assembly. Diagram 6. Align
the right side upright support with the base assembly mounting locations while
your assistant keeps tension on the cable.Refer to Diagram 6, #1.To secure the
upright support to the base assembly, take the following steps:
a. Place a washer (D) onto each of two ¾-inch screws (C).Thread the screws
through the front panel and into the upright support. Do not fully tighten the
screws. Leave room for final adjustments.
b. Place a washer (D) and barrel spacer (B) on each of two 2-inch screws (A).
Insert the screws through the upright support and thread them into the base
mounts. See Diagram 6, #3. Do not securely tighten the screws until after
the unit has been fully assembled.
8. Attach the
left side upright support to the base assembly. Diagram 6. Align
the upright support with the base assembly mounting bracket and secure it by
following steps 7a. and 7b.
9. Position the display console onto the upright supports. Diagram 7. Make
sure that the cable is routed through the top of the upright support. Have an
assistant hold onto the cable (see inset).
CAUTION: Do not crimp or pinch the cable!
Crimped or pinched cables are not covered
by the Precor limited warranty.
Diagram 6 Attach the upright
supports.
2
1
3
Front panel
Right side upright
support
Attach the right
side support first.
Right side upright
support
Display cable
Diagram 7 Install the display
console.
Display console
Display console
mounting brackets
Upright support
CAUTION: Avoid pinching the cable with
the bolts and spacers.
Left side upright
support

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10. Connect the display cable and secure the display console. Diagram 7. As the
display console rests on the upright supports, align the mounting holes. Refer to
Diagram 8, #1.Take the following steps to secure the display cable and console.
a. Attach the cable connector by sliding it into its receptacle underneath the console.
A definite “click” is heard when the cable is properly attached.Refer to Diagram 8,
#2.If you do not hear and feel the connector “snap” into place, reinsert it.
b. So that the cable does not hang below the console, slide it into the two tie
wrap clips found underneath the console. Refer to Diagram 8, #3 and #4.
Diagram 8
Connect the cable.
Display console
1
Diagram 9
Install the
center
handrail.
11. Install the center handrail. Loosen the four fasteners in the center console
bracket with the hex key provided. See Diagram 9, #1.The center handrail is
packaged in two pieces. Install one side at a time by following these steps:
a. Insert a handrail end cap. See Diagram 9, #2.
b. Slide the end of the handrail into the center clamp and rotate the handrail so
that it falls inside the end cap. See Diagram 9, #3.
Cable connector
Upright support
Cable receptacle
Mounting holes
Handrail
clamp
Center
console
bracket
1 2
3
2
3
4
Tie wrap

page 15
Diagram 10
Secure the display
console and center
handrail.
Side bracket screw
(C) with washer (E)
(left side)
Center handrail
mounting bracket
(right side)
c. Align the handrail’s mounting bracket with the holes in the upright support.
Insert two ¾-inch screws (C) with washers (D) and finger tighten. Do not
securely tighten the screws until both sides of the center handrail have been
attached. See Diagram 10, #1.
d. Align the handrail with the side bracket mount. Place a washer (E) on screw
(C) and insert the screw through the handrail and into the side bracket.
Finger tighten. See Diagram 10, #2.
e. Follow steps 9a. through 9d. on the opposite side.
Diagram 11
Secure the the upper
handrail clamp.
Tighten the screws,
but leave room for
adjustments.
Washer (E) with
1½-inch screw (F)
Handrail clamp
12. Install fasteners in the handrail clamp. Diagram 10.Return to the center
handrail clamp and place a large washer (E) onto each of two screws (F).Thread
the screws through the handrail clamp. Finger tighten.
¾-inch screws (C)
with washers (D)
(right side)

page 16
3
Diagram 11 Secure the fasteners.
Diagram 12
CAUTION: Do not overtighten the screws
or you may inadvertently cause stress
cracks.
Tighten the
handrail
fasteners.
First: Alternately
tighten four front
panel screws.
Third: Alternately
tighten the four
screws that secure
the console to the
uprights.
12
Center handrail
clamp screws (2)
Side bracket
Second: Alternately
tighten four side
upright screws.
13. Tighten all mounting screws with the hex key (G) provided. Diagram 11.
Start at the front of the treadmill with the four screws that attach the upright supports
to the front panel.Tightening these screws first helps pull the rest of the treadmill’s
parts into alignment.Then, proceed with tightening the four screws (A) that secure
the upright supports and the four display console assembly screws (C).
14. Tighten all the center handrail fasteners. Diagram 12. Start with tightening the
two side bracket screws and work inward. See Diagram 12, #1. So that you don’t
overtighten the fasteners, hold the supplied hex key by its 3-inch section and
tighten the two center clamp screws. Refer to Diagram 12, #2. Next, tighten the
four console bracket screws.Refer to Diagram 12, #3.
1
2
Center console
bracket screws (4)
3

page 17
Diagram 13
15. Level the unit. Diagram 13.The M9.31 has adjustable rear feet.Check to make
sure that the running surface is level (use a bubble level as shown in Diagram 13).
If the treadmill is placed on a slightly, uneven surface, adjusting the rear feet can
help, but will not compensate for extremely uneven surfaces.
Important: If you need to make adjustments, adjust one rear foot at a time. Do
not use the rear foot to raise or lower the unit more than ¾-inches. Check the
level of the unit after each adjustment.
16. Adjust the rear deck. Diagram 13, #3.To raise the rear deck, insert the ¼-inch
hex key (G). Make sure that the key is fully engaged and turn it clockwise.
Turning the hex key counterclockwise lowers the unit.
2
1
Level
the
unit.
17. Connect the power cord. Diagram 14, #1. Insert the power plug’s connector into
the receptacle at the front of the treadmill.
18. Plug the M9.31 into a grounded outlet. Be sure to use the appropriate voltage
and amperage requirements. Refer to Grounding Instructions on page 5 .
3
1
Connect the power
cord and turn on the
treadmill.
2
Diagram 14
CAUTION: Never remove or bypass the
3-prong plug on the unit’s power cord with
an adapter. Do not use a non-grounded
outlet. Do not plug the treadmill into a
power transformer in an attempt to adjust
the voltage requirements.
Power receptacle
Power cord
ON/OFF power switch
Hood

page 18
CAUTION: Do not walk on the running belt
during this procedure.
CAUTION: If you hear any chafing or
the running belt appears to be getting
damaged, stop the running belt immedi-
ately by pressing the STOP key. Contact
Customer Support.
Turning the Unit ON and OFF
Use the ON/OFF (I/O) power switch to turn the unit ON and OFF.This switch is
located on the front of the unit, near the power cord. See Diagram 14, #2 on page 17.
The treadmill requires a dedicated, grounded circuit. A 20 amp circuit is
recommended. Make sure that no other product or machine uses the same
circuit as the treadmill.
To complete the installation of the treadmill, continue to Checking the Alignment of the
Running Belt on the next page .
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.
Follow these steps to check the alignment:
1. The treadmill has adjustable rear feet. Check to make sure that the running
surface is level (refer to steps 15 and 16 on the previous pages).If the treadmill
is placed on a slightly uneven surface, adjusting the rear feet can help, but will
not compensate for extremely uneven surfaces.
2. Locate the I/O switch at the front of the treadmill and turn the unit ON.
3. Stand beside the treadmill and press QuickStart.
4. If necessary, enter the password:Incline ▼, Speed ▼, Speed ▲.
The running belt starts automatically after the message, “
Belt Starting 3, 2, 1,... ”
appears.
5. Continue standing next to the treadmill and hold down the Speed ▲key until the
display shows a speed of 3 miles per hour (5 kph).
6. Walk around to the rear of the unit 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
(evenly distributed between the side rails) and no adjustment is necessary.
runs or drifts off center you need to adjust the belt; see
Aligning the Running Belt, page 40.
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.
7. To stop the running belt, press the red Stop button.
If the belt is functioning correctly, the M9.31 treadmill is ready to use.

page 19
The M9.31 is designed so that you can work out with minimal instruction.The
directions on the console and the prompts on the display help guide you through your
entire workout session.The course information, the workout time, your weight, and your
age (if applicable) are stored, once you complete a course.If no one else uses the
treadmill, prior to your next workout, the information about your preferred course,
workout time, weight, and age is retrieved from memory.
Your M9.31 also contains a QUICKSTARTTM feature which lets you bypass the Setup
prompts and start your workout immediately. Refer to The Setup Mode and the
QuickStart Feature on page 27.
This section provides information about:
• safety features • cooling down after a workout
• workout tips • Setup mode and QuickStart
• quick steps to working out • pause and exit features
Safety Features
The M9.31 treadmill is a powerful machine. Children should not be allowed on or
near the treadmill.You should assemble and use the treadmill in a safe and secure
location. Other safety aspects to consider include:
• Always attach the security clip to your clothing prior to working out.
• To help prevent unauthorized use, the M9.31 provides password protection. The
password is enabled at the factory. Refer to
Entering a Password below.
• Prior to the start of a course, the display will return to the Precor banner if more
than two minutes elapse without a key press occurring.This feature is helpful if
you get called away just prior to starting your workout. However, do not assume
that this feature makes the treadmill secure from unauthorized use.
Using the Security Clip
A security clip is attached by its cord to the red Stop button above the center
handrail. Always attach the security clip to your clothing before each workout. A tug
on the cord trips the security switch and slows the running belt to a stop. If the
security switch trips while you are working out, the treadmill retains your workout
statistics and enters Pause mode.To resume your workout, reattach the security clip
to your clothing, and press the Speed ▲key until you reach the desired speed.
Using the Handrail
Always grasp the handrail to help keep your balance when you step on to or off of the
treadmill and when you use the display keys. During a workout, use the handrail to
keep your upper-body movement to a minimum.
Note: If you’re interested in purchasing handrails that attach to the side of the
treadmill, call your local dealer. Refer to Obtaining Service on page 9.
Entering a Password
The M9.31 is equipped with password protection.At the password prompt “PW?”,
entering the following key sequence: Incline ▼, Speed ▼, Speed ▲.
An asterisk appears on the display with each key press. If the correct key is not
pressed within two minutes, further access is denied and the running belt will not
move.The Precor banner reappears on the display.
Using the M9.31 Treadmill
3
CAUTION: Do not allow children on or
near the treadmill at anytime. If anything
should get caught in the rollers, the
running belt does not stop immediately.

page 20
WorkoutTips
The steps to working out on the treadmill are listed on the opposite page. A short
description appears in the left margin with the more thorough explanation following
on the right.Tips to consider during your workout are shown below:
• Check that the unit is turned ON.The I/O switch is located on the front panel
near the power cord receptacle.
• Review the
Safety Features on the previous page and follow the Important
Safety Instructions written on the inside cover.
• At the Precor banner, pressing QuickStart bypasses further selections and
starts the running belt. Default values may apply (see
QuickStart on page 29).
SmartRate®is not active.
• Entry of a password may be required before starting a course.
CAUTION: Before beginning any fitness
program, you should obtain a complete
physical examination from your personal
physician.
Once you begin a course, the profile
appears in this portion of the display and
remains until the scanning process begins.
Diagram 16
M9.31 display console
SmartRate® display
Course profile and data entry fields
Select key
Keypad keys
The keys on the keypad let you:
• control your workout session,
• answer prompts prior to starting a course,
• determine which display features appear,
• prematurely end a course, and
• adjust the incline and speed.
Refer to Keys on the Keypad on page 28.
Diagram 16 shows the display console label. Its display features and keys are
explained on the following pages.
Precor SmartRate®and Heart Rate system: The SmartRate®and Heart Rate system
is a separate purchase item.The heart rate receiver must be installed in the display
console and you must wear a POLAR®chest strap, face the display console, enter your
age, and begin a course before the heart rate features can appear on the display.
SmartRate®display: Once you begin a course, a blinking segment approximates your
heart rate and shows you which zone your heart rate is in: weight loss or cardiovascular.
For more information, refer to page 24, The M9.31 Display .
Important: During a course, your heart rate must be above 40 beats per minute
before the segment begins to blink. Note that pressing QuickStart at the Precor
banner makes the SmartRate®display feature inactive.
Heart Rate display — helps you monitor your heart rate and target zone. Refer to
Heart Rate Capabilities on page 37.
Customize the display by highlighting the LED
indicators in each column. Make your selec-
tions by pressing the SELECT key. A lit LED
indicates which feature is being displayed. If
more than one LED is highlighted, the M9.31
sequentially scans the features every few
seconds.Refer to page 30.