ProForm C 525 Treadmill Manual

							11
1.Remove the key from the console and unplug
the power cord.
Remove the 3/4” Screw (23) and the Access Door
(100) from the back of the Console Base (98). 
2. Connect the wire on the receiver (A) to the indi
cated wire extending from the Console Base (98).
Hold the receiver so the small cylinder is ori
ented as shown and is facing the Console
Base. 
Attach the receiver to the plastic posts on
the Access Door (100) with the two included
small screws.
3.
Make sure that no wires are pinched.Reattach
the Access Door (100) with the 3/4” Screw (23).
Discard the other wires included with the re
ceiver.
If you purchase the optional chest pulse sensor (see page 19), follow the steps below to install the receiver
included with the chest pulse sensor.
14.Make sure that all parts are properly tightened before you use the treadmill.If there are sheets of clear
plastic on the treadmill decals, remove the plastic. To protect the floor or carpet, place a mat under the tread
mill. Note: Extra hardware may be included. Keep the included hex key in a secure place; the large hex key is
used to adjust the walking belt (see page 23).  
A
98
Small
Cylinder23
100
Wire
Small
Screws   
						

							OPERATION AND ADJUSTMENT
THEPRELUBRICATED WALKING BELT
Your treadmill features a walking belt coated with high
performance lubricant. 
IMPORTANT: Never apply sil
icone spray or other substances to the walking
belt or the walking platform. Such substances will
deteriorate the walking belt and cause excessive
wear.
HOW TO PLUG IN THE POWER CORD 
Your treadmill, like any other type of sophisticated
electronic equipment, can be seriously damaged by
sudden voltage changes in your home’s power.
Voltage surges, spikes, and noise interference can 
result from weather conditions or from other appliances
being turned on or off. 
To decrease the possibility of
your treadmill being damaged, always use a surge
suppressor with your treadmill (see drawing 1 at
the right). To purchase a surge suppressor, see
your local PROFORM dealer or call the tollfree
telephone number on the front cover of this man
ual and order part number 146148, or see your local
electronics store.
Use only a singleoutlet surge suppressor that is
UL 1449 listed as a transient voltage surge sup
pressor (TVSS). The surge suppressor must have a
ULsuppressed voltage rating of 400 volts or less
and a minimum surge dissipation of 450 joules.
The surge suppressor must be electrically rated for
120 volts AC and 15 amps. There must be a moni
toring light on the surge suppressor to indicate
whether it is functioning properly. Failure to use a
properly functioning surge suppressor could result
in damage to the control system of the treadmill. If
the control system is damaged, the walking belt
may change speed, accelerate or stop unexpect
edly, which may result in a fall and serious injury.
This product must be grounded. 
If it should malfunc
tion or break down, grounding provides a path of least
resistance for electric current, reducing the risk of electric shock. This product is equipped with a cord having
an equipmentgrounding conductor and a grounding
plug. 
Plug the power cord into a surge suppressor,
and plug the surge suppressor into an appropriate
outlet that is properly installed and grounded in
accordance with all local codes and ordinances.
Important: The treadmill is not compatible with
GFCIequipped outlets.
This product is for use on a nominal 120volt circuit,
and has a grounding plug that looks like the plug illus
trated in drawing 1 below. A temporary adapter that
looks like the adapter illustrated in drawing 2 may be
used to connect the surge suppressor to a 2pole 
receptacle as shown in drawing 2 if a properly 
grounded outlet is not available. 
The temporary adapter should be used only until a
properly grounded outlet (drawing 1) can be installed
by a qualified electrician. 
The greencolored rigid ear, lug, or the like extending
from the adapter must be connected to a permanent
ground such as a properly grounded outlet box cover.
Whenever the adapter is used it must be held in place
by a metal screw. 
Some 2pole receptacle outlet box
covers are not grounded. Contact a qualified elec
trician to determine if the outlet box cover is
grounded before using an adapter.
DANGER:Improper connection
of the equipmentgrounding conductor can
result in an increased risk of electric shock.
Check with a qualified electrician or service
man if you are in doubt as to whether the
product is properly grounded. Do not modify
the plug provided with the product—if it will
not fit the outlet, have a proper outlet 
installed by a qualified electrician.
1
2Grounded Outlet Box
Grounded Outlet Box
Grounding Plug
Surge Suppressor
Surge Suppressor
Grounding Pin
Adapter
Lug
Metal Screw
Grounded Outlet
Grounding Pin
12       
						

							13
FEATURES OF THE CONSOLE 
The treadmill console offers an impressive array of 
features designed to make your workouts more effec
tive.
When the manual mode of the console is selected, the
speed and incline of the treadmill can be changed with
the touch of a button. As you exercise, the console will
display continuous exercise feedback. You can even
measure your heart rate using the builtin handgrip
pulse sensor or the optional chest pulse sensor (see
page 19).In addition, the console features six preset programs.
Each program automatically controls the speed and in

cline of the treadmill as it guides you through an effec
tive workout. The console also offers two heart rate pro
grams that control the speed and incline of the treadmill
to keep your heart rate near a target heart rate during
your workouts. Note: You must wear the optional chest
pulse sensor to use the heart rate programs.
To use the manual mode of the console,follow the
steps beginning on page 14.
To use a preset
program
, see page 16. To use a heart rate program,
see page 17. 
Clip
CONSOLE DIAGRAM
KeyNote: If there is a sheet of clear plastic
on the face of the console, remove it.   
						

							14
HOW TO TURN ON THE POWER
Plug in the power cord (see page 12).  
Locate the reset/off
circuit breaker near
the power cord. Make
sure that the circuit
breaker is in the reset
position.  
Stand on the foot rails of the treadmill. Find the clip
attached to the key (see the drawing on page 13)
and slide the clip onto the waistband of your
clothes. Next, insert the key into the console. Afteramoment, the display will light. 
Important: In an
emergency situation, the key can be pulled
from the console, causing the walking belt to
slow to a stop. Test the clip by carefully taking
a few steps backward; if the key is not pulled
from the console, adjust the position of the
clip.
HOW TO USE THE MANUAL MODE
Insert the key into the console.
See HOW TO TURN ON THE POWER above. 
Select the manual mode.
When the
key is in
serted, the
manual
mode will
be selected.
If a program
has been selected, reselect the manual mode by
pressing any of the buttons numbered P1 to P8
once or twice until a track appears in the lower
part of the display.
Start the walking belt.
To start the walking belt, press the Start button,
the Quick Speed increase button, or one of the
speed buttons numbered 1 to 10. 
If the Start button or the Quick Speed increase
button is pressed, the walking belt will begin to
move at 1 mph. As you exercise, change the
speed of the walking belt as desired by pressingthe Quick Speed in
crease and decrease
buttons. Each time a
button is pressed, the
speed setting will
change by 0.1 mph; if a
button is held down, the speed setting will change
in increments of 0.5 mph. Note: After the buttons
are pressed, it may take a moment for the walking
belt to reach the selected speed setting.
If one of the numbered speed buttons is pressed,
the walking belt will gradually increase in speed
until it reaches the selected speed setting. 
To stop the walking belt, press the Stop button.
The time will begin to flash in the display. To
restart the walking belt, press the Start button, the
Quick Speed increase button, or one of the num
bered buttons.
Note: The first time the treadmill is used, observe
the alignment of the walking belt, and align the
walking belt if necessary (see page 23).
Change the incline of the treadmill as desired.
To change the incline of
the treadmill, press the
Power Incline increase
and decrease buttons.
Each time a button is
pressed, the incline will
change by 0.5%. Note: After the buttons are
pressed, it may take a moment for the treadmill to
reach the selected incline setting.  
Follow your progress with the display.
Note: The display can be backlit with any of
five colors. To select the desired color, press
the Display Color button repeatedly.
When the
manual mode
is selected,
the lower part
of the display
will show a
1/4mile
track. As you walk or run, the indicators around the
track will appear in succession until the entire track
appears. The track will then disappear and the in
dicators will again begin to appear in succession.
5
4
3
2
1
3
2
1
Reset
Position
Track
Track           
						

							15
The left side of the dis
play will show the incline
level of the treadmill, the
elapsed time, and the
distance you have
walked or run. Note:
When a program is selected, the display will show
the time remaining in the program instead of the
elapsed time.
The right side of the
display will show the
speed of the walking
belt, the approximate
number of calories you
have burned, and your
pace (in minutes per mile). The display will also
show your heart rate when you use the handgrip
pulse sensor or the optional chest pulse sensor. 
To reset the display, press the Stop button, re
move the key, and then reinsert the key.
Note: The console can
display speed and dis
tance in either miles or
kilometers. To determine
which unit of measure
ment is selected, hold
down the Stop button while inserting the key into
the console. An “E” for English miles or an “M” for
metric kilometers will appear in the right side of the
display. Press the Quick Speed increase buttonto
change the unit of measurement. When the de
sired unit of measurement is selected, remove the
key. 
Note: For simplicity, all instructions in this
section refer to miles.
Measure your heart rate if desired.
Note: If you use the handgrip pulse sensor and
the optional chest pulse sensor at the same time,
the console will not display your heart rate accu

rately. Before using the handgrip pulse sensor, re
move the clear plastic film from the metal con
tacts. In addition, make sure that your hands are
clean.To measure
your heart
rate, 
stand
on the foot
rails
and
hold the
metal con
tacts on the
handrail—
avoid moving your hands.When your pulse is
detected, the heart symbol in the right side of the
display will appear, one or two dashes will appear,
and then your heart rate will be shown. 
For the
most accurate heart rate reading, continue to
hold the contacts for about 15 seconds.
Turn on the fan if desired.
To turn on the fan at low speed, press the Cool
Breeze Fan button. To turn on the fan at medium
speed, press the button a second time.To turn on
the fan at high speed, press the button a third
time. To turn off the fan, press the button again.
Note: If the fan is left on when the walking belt is
stopped, the fan will automatically turn off after a
few minutes.
When you are finished exercising, remove the
key.
Step onto the foot rails, press the Stop button, and
adjust the incline of the treadmill to the lowest
setting. The incline must be at the lowest setting
when the treadmill is folded to the storage posi
tion or the treadmill will be damaged.
Next, re
move the key from the console and put it in a se
cure place. 
Note: If the display remains lit after
the key is removed, the console is in the
“demo” mode. See page 19 and turn off the
demo mode.
When you are finished using the treadmill,
switch the reset/off circuit breaker to the off
position and unplug the power cord.
8
7
6
Contacts         
						

							16
HOW TO USE A PRESET PROGRAM
Insert the key fully into the console.
See HOW TO TURN ON THE POWER on page
14. 
Select one of the preset programs.
To select
one of the
preset pro
grams, press
the P3, P4,
P5, P6, P7,
or P8 button.
After each
preset pro
gram is selected, the maximum speed setting of
the program and the maximum incline setting of
the program will flash in the display for a few sec
onds. The display will also show how long the pro
gram will last. The matrix in the lower part of the
display will show the first seven speed settings of
the program. 
Press the Start button or the Quick Speed in
crease button to startthe program.
Amoment after the button is pressed, the tread
mill will automatically adjust to the first speed and
incline settings for the program. Hold the handrails
and begin walking. 
Each program is divided into 30 oneminute seg
ments. One speed setting and one incline setting
are programmed for each segment.Note: The
same speed setting and/or incline setting may be
programmed for two or more consecutive seg
ments.
The speed
setting for
the first seg
ment will be
shown in the
flashing
Current
Segment column of the matrix in the lower part of
the display. (The incline settings are not shown inthe matrix.) The speed settings for the next four
segments will be shown in the four columns to the
right.
When only three seconds remain in the first seg
ment of the program, both the Current Segment
column and the column to the right will flash and a
series of tones will sound. If the speed and/or in
cline of the treadmill is about to change, the speed
setting and/or the incline setting will flash in the
display to alert you. 
When the first segment is completed, 
all speed
settings will move one column to the left
. The
speed setting for the second segment will then be
shown in the flashing Current Segment column
and the treadmill will automatically adjust to the
speed and incline settings for the second seg
ment. Note: If all five of the indicators in the
Current Segment column are lit,
the speed settings
may move downward 
so that only the highest indi
cators appear in the matrix.
The program will continue in this way until the
speed setting for the last segment is shown in the
Current Segment column and the last segment
ends. The walking belt will then slow to a stop.
If the speed or incline setting for the current 
segment is too high or too low, you can manually
override the setting by pressing the Quick Speed
or Power Incline buttons. Every few times a Quick
Speed button is pressed, an additional indicator
will appear or disappear in the Current Segment
column; if any of the columns to the right of the
Current Segment column have the same number
of lit indicators as the Current Segment column,
an additional indicator may appear or disappear in
those columns as well. 
Important: When the cur
rent segment of the program ends, the tread
mill will automatically adjust to the speed and
incline settings for the next segment.
To stop the program at any time, press the Stop
button. The time will begin to flash in the display.
To restart the program, press the Start button or
the Quick Speed increase button. The walking belt
will begin to move at 1 mph. When the next seg
ment of the program begins, the treadmill will auto
matically adjust to the speed and incline settings
for the next segment.
3
2
1
Current Segment     
						

							17
Follow your progress with the display.
See step 5 on page 14.
Measure your heart rate if desired.
See step 6 on page 15.
Turn on the fan if desired.
See step 7 on page 15.
When you are finished exercising, remove the
key from the console.
When the program has ended, make sure that
the incline of the treadmill is at the lowest set
ting.
Next, remove the key from the console and
put it in a safe place. 
Note: If the display remains
lit after the key is removed, the console is in
the “demo” mode. See page 19 and turn off the
demo mode.
When you are finished using the treadmill,
switch the reset/off circuit breaker to the off
position and unplug the power cord.
HOW TO USE A HEART RATE PROGRAM
Heart rate program 1 will automatically adjust the speed
and incline of the treadmill to keep your heart rate withinapreset range that you select. Heart rate program 2 will
keep your heart rate near a target heart rate. 
Follow the steps below to use a heart rate program.
Put on the optional chest pulse sensor.
You must wear the optional chest pulse sensor
(see page 15) to use a heart rate program. 
Insert the key into the console.
See HOW TO TURN ON THE POWER on 
page 14. 
Select a heart rate program.
To select a heart rate program, press the P1 but
ton or the P2 button. The display will show which
program (“P1” or “P2”) is selected. 
If heart rate
program 1
is selected,
a profile of
the target
heart rate
settings of
the program
will appear in
the matrix.
If heart rate
program 2
is selected,
aheart sym
bol will ap
pear in the
matrix. 
3
2
1
7
6
5
4
CAUTION:If you have heart prob
lems, or if you are over 60 years of age and
have been inactive, do not use the heart rate
programs. If you are taking medication regu
larly, consult your physician to find whether the
medication will affect your exercise heart rate.       
						

							18
Enter a target heart rate setting.
If heart rate program 1
is selected,
the maxi
mum target heart rate
setting of the program
will appear in the dis
play. If desired, press
the Heart Rate increase and decrease buttons to
change the maximum target heart rate setting
(see EXERCISE INTENSITY on page 24). Note:
If the maximum target heart rate setting is
changed, the intensity level of the entire program
willchange.
If heart rate program 2
is selected,
the target
heart rate setting for the
program will appear in
the display. If desired,
press the Heart Rate in
crease and decrease buttons to change the target
heart rate setting 
(see EXERCISEINTENSITY on
page 24). 
Note: The same target heart rate set
ting will be programmed for the entire program. 
Press the Start button or the Quick Speed in
crease button to startthe program.
Amoment after the button is pressed, the tread
mill will automatically adjust to the first speed and
incline settings of the program. Hold the handrails
and begin walking.
Heart rate program 1 is divided into 30 oneminute
segments. One target heart rate setting is pro
grammed for each segment. Note: The same tar
get heart rate setting may be programmed for two
or more consecutive segments.
Heart rate program 2 is divided into 40 oneminute
segments. The same target heart rate setting is
programmed for all segments. Note: For a shorter
workout, simply stop the program before it ends.  
If heart rate
program 1 is
selected, the
target heart
rate setting
for the first
segment will
be shown in the flashing Current Segment column
of the matrix. The target heart rate settings for the
next several segments will be shown in the
columns to the right. When only three seconds re
main in the first segment, both the CurrentSegment column and the column to the right will
flash and a series of tones will sound. In addition,
the speed setting and the incline setting will flash
in the displays to alert you. When the first seg
ment ends, 
all target heart rate settings will move
one column to the left.
The target heart rate set
ting for the second segment will then be shown in
the flashing Current Segment column.
During both heart rate programs, the console will
regularly compare your heart rate to the current
target heart rate setting. If your heart rate is too
far below or above the target heart rate setting,
the speed of the walking belt will automatically in
crease or decrease to bring your heart rate closer
to the target heart rate setting. If the speed of the
walking belt reaches 7.5 mph and your heart rate
is still too far below the target heart rate setting,
the incline of the treadmill will also increase. 
If the speed or incline setting is too high or too low
at any time during the program, you can adjust the
setting with the Speed or Incline buttons. However,
each time the console compares your heart rate to
the target heart rate setting, the speed and/or in
cline of the treadmill may automatically change to
bring your heart rate closer to the target heart rate.
If your pulse is not detected during the program,
the letters “PLS” will flash in the display and the
speed and/or incline of the treadmill may automat
ically decrease.If this occurs, see the instructions
included with the optional chest pulse sensor.
To stop the program at any time, press the Stop
button. The time will begin to flash in the display.
To restart the program, press the Startbutton or
the Quick Speed increase button. The walking belt
will begin to move at 1 mph. When the console
compares your heart rate to the target heart rate
setting, the speed and/or incline of the treadmill
may automatically change to bring your heart rate
closer to the target heart rate setting.
Follow your progress with the display.
See step 5 on page 14.
Turn on the fan if desired.
See step 7 on page 15.
When you are finished exercising, remove the
key from the console.
See step 7 on page 17.
8
7
6
5
4
Current Segment       
						

							19
THE INFORMATION MODE/DEMO MODE
The console features an information mode that keeps
track of the total number of hours that the treadmill has
been operated and the total number of miles that the
walking belt has moved. The information mode also al
lows you to select miles or kilometers as the unit of
measurement and to turn on and turn off the demo
mode.
To select the information mode, hold down the Stop
button while inserting the key into the console. When
the information mode is selected, the following informa
tion will be shown in the display:  
The left side of the display
will show the total number of
miles (or kilometers) that the
walking belt has moved and
the total number of hours
that the treadmill has been
used. An “E” for English miles or an “M” for metric kilo
meters will appear in the right side of the display. Press
the Quick Speed increase button to change the unit of
measurement. 
IMPORTANT: If a “d” appears in the right side of the
display, the console is in the “demo” mode. This mode
is intended to be used only when a treadmill is dis
played in a store. When the console is in the demo
mode, the power cord can be plugged in, the key can
be removed from the console, and the indicators in the
display will automatically appear in a preset sequence,
although thebuttons on the console will not operate. 
If a
“d” appears when the information mode is selected,
press the Quick Speed decrease button so the “d”
disappears. 
To exit the information mode, remove the key from the
console.
THE OPTIONAL CHEST PULSE SENSOR
Anoptional chest pulse sensor adds even more fea
tures to the console. The chest pulse sensor offers
handsfree operation, and enables you to use the con
sole’s two heart rate programs. 
To purchase the op
tional chest pulse sensor, call the tollfree tele
phone number on the front cover of this manual.
MilesHours       
						

							20
HOW TO FOLD AND MOVE THE TREADMILL
HOW TO FOLD THE TREADMILL FOR STORAGE
Before folding the treadmill, adjust the incline to the 
lowest position. If this is not done, the treadmill may be per
manently damaged. Next, unplug the power cord. CAUTION:
You must be able to safely lift 45 pounds (20 kg) to raise,
lower, or move the treadmill.
1.Hold the metal frame firmly in the location shown by the
arrow at the right. CAUTION: To decrease the possibility
of injury, do not lift the frame by the plastic foot rails.
Make sure to bend your legs and keep your back straight.
As you raise the frame, make sure to lift with your legs
rather than with your back.
Raise the frame about halfway
to the vertical position. 
2. Move your right hand to the position shown and hold the
treadmill firmly. Using your left hand, pull the latch knob to
the left and hold it. Raise the frame until the latch pin is
aligned with the gap between the frame and the foot rail.
Slowly release the latch knob. 
Make sure that the latch pin
is fully inserted between the frame and the foot rail. 
To protect the floor or carpet from damage, place a mat
under the treadmill. Keep the treadmill out of direct sun
light. Do not leave the treadmill in the storage position in
temperatures above 85°Fahrenheit.
HOW TO MOVE THE TREADMILL 
Before moving the treadmill, convert the treadmill to the storage
position as described above. 
Make sure that the latch pin is
fully inserted between the frame and the foot rail.  
1.  Hold the upper ends of the handrails. Place one foot against
one of the wheels.
2.  Tilt the treadmill backward until it rolls freely on the front
wheels. Carefully move the treadmill to the desired location.
To reduce the risk of injury, use extreme caution while
moving the treadmill. Do not move the treadmill over an
uneven surface.
3.  Place one foot against one of the wheels, and carefully lower
the treadmill until it is resting in the storage position.
EngagedFrame
Latch Knob
Latch Pin
Wheel
Handrail
Frame