Owner’s Manual
HEALTH TRAINER 502t TREADMILL
Customer Service
(888) 340-0482
Keys Fitness Products
4009 Distribution Drive
Suite 250
Garland, TX 75041
Model Name : 502t
Serial Number :
Purchase Date :
Write down for future reference
Serial Number Decal Location
415-00001
07/04
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Important Safety Information
WARNING! Before using this treadmill or starting any exercise program, consult your physician. This is espe-
cially important for persons over the age of 35 and/or persons with pre-existing health problems. The man-
ufacturer or distributor assumes no responsibility for personal injury or property damage sustained by or
through the use of this product.
WARNING! To reduce the risk of electrical shock, burns, fire, or other possible injuries to the user, it is impor-
tant to review this manual and the following precautions before operation.
SAFETY PRECAUTIONS AND TIPS
1. It is the owner’s responsibility to ensure that all users of this treadmill have read the Owner’s Manual
and are familiar with warnings and safety precautions.
2. This treadmill has a user maximum capacity of 250 pounds.
3. The treadmill should only be used on a level surface and is intended for indoor use only. The treadmill
should not be placed in a garage, patio, or near water and should never be used while you are wet. Keys rec-
ommends a treadmill mat be placed under the treadmill to protect floor or carpet and for easier cleaning.
4. Follow safety information in regards to plugging in your treadmill. Keep the power cord away from the
incline wheels and do not run the power cord underneath your treadmill. Do not operate the treadmill with a
damaged or frayed power cord.
5. Wear comfortable, good-quality walking or running shoes and appropriate clothing. Do not use the tread-
mill with bare feet, sandals, socks or stockings.
6. Always straddle the belt and allow it to start moving before stepping onto the belt.
7. Hold on to handrail when adjusting speed, incline, or other controls.
8. Always examine your treadmill before using to ensure all parts are in working order.
9. Allow the belt to fully stop before dismounting.
10. Pets should never be allowed near or on the treadmill.
11. Do not leave children unsupervised near or on the treadmill.
12. Never operate the treadmill where oxygen is being administered, or where aerosol products are being
used.
13. Never insert any object or body parts into any opening.
14. For safety and to prevent damage to your treadmill, no more than one person should use the treadmill at
a time.
15. Always unplug the treadmill before cleaning and/or servicing. Service to your treadmill should only be
performed by an authorized service representative, unless authorized and/or instructed by the manufacturer
16. Failure to follow these instructions will void the treadmill warranty.
17. Never leave the treadmill unattended while it is running
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Before You Start
Thank you for purchasing the HEALTH TRAINER 502t Treadmill! This quality product you have chosen
was designed to meet your needs for cardiovascular exercise. Before you start, please read the Owner's
Manual and become familiar with the operation of your new treadmill.
Remember to take the time to perform the stretching exercises provided to avoid injury.
Do not stand on the walking belt while pressing the Power button or Start/Stop button.
Always adjust the speed of the treadmill in small increments as this treadmill is capable of high speeds.
If you are taking medication, consult your physician to see if the medication will affect your exercise heart
rate.
If you have heart problems, you are not active, and/or are over the age of 35 years, do not use the pre-set
treadmill programs or start an exercise program without first contacting and receiving approval from your
physician.
To avoid the risk of electrical shock, always keep the console dry. Do not spill liquids on the console. Keys
Fitness recommends a sealed water bottle for beverages consumed while using the treadmill.
Please review the following drawing below to familiarize yourself with the listed parts. This manual cov-
ers several treadmills, so the one pictured below may not be identical to your particular model.
UPRIGHT CROSSBAR
SAFETY KEY
CONSOLE
REMOTE HARNESS
REMOTE HARNESS
LATCH
RIGHT UPRIGHT
LEFT UPRIGHT
POWER CABLE
RIGHT EXTRUSION COVER
EXTRUSION
MOTOR COVER
RUNNING BELT
ADJUSTMENT FOOT
LEFT EXTRUSION COVER
BASE PAD
END CAP
LATCH BRACKET
TRANSPORT WHEEL
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Assembly
The HEALTH TRAINER 502t treadmill will require assembly before operating. After opening the box,
remove any packing material from the treadmill.
Do not throw away any packing materials until the unit is working properly.
Place the base on a clean, level surface. Make sure the electrical cord will easily reach an electrical outlet.
Locate the hardware pack and identify the following parts required for assembly.
Parts List:
1. Owner’s Manual
2. Console Assembly
3. Left and Right Uprights
4. Upright Crossbar
5. Power Cable
6. Allen Wrench
7. Washer 9*22*1.6 mm (16)
8. Allen Bolt M8*15 mm (16)
9. Screw ST4.2*16 (6)
10. Screw ST4.2*13 (1)
Owners Manual
Console Assembly
Power Cable
Upright Crossbar
Left and Right Upright
Screw- Qty. 1
ST4.2*13
Bolt- Qty. 16
M8*15
Screw- Qty. 6
ST4.2*16
Washer- Qty. 16
9*22*1.6 mm
Allen Wrench
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Assembly
Assembly requires the included allen wrench and your own phillips screwdriver.
Do not plug in the power cord until all assembly step are completed.
1. With the treadmill deck in the down position, leave the unit on the original packing material to assemble all
parts.Refer to figure 1.
Figure 1: Deck in down position
2. Connect the Console Harness together. The harness is located in the Left Upright assembly. Refer to Figure
2 and Figure 3.
Caution: Make sure harness in installed inside upright and pay attention not to pinch the wire harness.
CONSOLE
HARNESS
Figure 2: Console Harness Location
Figure 3: Console Harness Connection
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Assembly
RIGHT UPRIGHT
LEFT UPRIGHT
3. Install Left Upright and Right Upright to tread-
mill base frame. Refer to Figure 4.
Note: Make sure that the Wire Harness is not
pinched.
Do not install hardware until instructed.
Figure 4: Left and Right Upright Installation
UPRIGHT CROSSBAR
4. Install the Upright Crossbar Assembly to Left
and Right Upright as shown in Figure 5.
5. Attach Left Upright and Right Upright to
base frame using Allen Bolts M8*15 (Qty. 12)
and Washer 9*22*1.6 mm (Qty.12). Refer to
Figure 6.
Figure 5: Upright Crossbar Assembly
Note: Lift deck to upright position to install
the Allen Bolts (Qty. 4) on the inside location
of Left and Right Uprights.
ALLEN BOLT M8*15
6. Attach Upright Crossbar to Left and Right
Uprights using Allen Bolts M8*15 (Qty. 4) and
Washer 9*22*1.6 mm (Qty.4). Refer to Figure
6.
WASHER 9*22*1.6 mm
7. Make sure the wire harness is not pinched
and hand tighten all bolts. Wait to tighten all
bolts firmly until unit is fully assembled.
WASHER 9*22*1.6 mm
ALLEN BOLT M8*15
Figure 6: Hardware Installation
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Assembly
CONSOLE
8. Connect the Console Harness and
Remote Speed Harness together as shown in
Figure 7. Connectors snap together as
shown in Figure 8.
REMOTE HARNESS
GROUND WIRE
CONSOLE HARNESS
SCREW ST4.2*13
Figure 7: Console Wire Connections
9. Connect Ground Wire to grounding screw
located on the side of the Upright Assembly
using Screw ST4.2*13 (Qty. 1) as shown in
Figure 7.
Figure 8: Console Harness Connection
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Assembly
10. Make sure all wires and harnesses are
inside console housing and attach the console
back cover to the Left and Right Upright
mounting brackets using Screws ST4.2*16
(Qty. 6) as shown in Figure 9.
SCREW ST4.2*16
Figure 9: Console Back Cover Installation
11. Tighten all hardware (previously installed)
and insert Power Cable into AC connection on
rear of unit. Refer to Figure 10.
POWER CABLE
Figure 10: Power Cable Connection
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Warm Up Exercises
EXERCISE GUIDELINES
WARNING! Before beginning this or any exercise program, you should consult your physician. This is espe-
cially important for individuals over the age of 35 or individuals with pre-existing health problems.
Warming up prepares the body for the exercise by increasing circulation, supplying more oxygen to the mus-
cles and raising body temperature. Begin each workout with 5 to 10 minutes of stretching and light exercise
to warm up. The photos on this page show several forms of basic stretching you may perform before your
workouts. In order to achieve an adequate warm-up, perform each stretch three times.
TOE TOUCH STRETCH
Stand bending your knees slightly and slowly bend forward from your hips.
Allow your back and shoulders to relax as you reach down toward your toes
as far as possible. Hold for 15 counts, then relax. This will stretch your ham-
strings, back of knees, and back.
HAMSTRING STRETCH
Sit with one leg extended. Bring the sole of the opposite foot toward you and
rest it against the inner thigh of your extended leg. Reach toward your toes as
far as possible. Hold for 15 counts, then relax. This will stretch your ham-
strings, lower back, and groin.
CALF/ACHILLES STRETCH
With one leg in front of the other, reach forward and place your hands against
a wall. Keep your back leg straight and your back foot flat on the floor. Bend
your front leg, lean forward and move your hips toward the wall. Hold for 15
counts, then relax. To cause further stretching of the Achilles tendon, bend
your back leg as well. This will stretch your calves, Achilles tendons, and
ankles.
QUADRICEPS STRETCH
With one hand against a wall for balance, reach back and grasp one foot with
your other hand. Bring your heel as close to your buttocks as possible. Hold
for 15 counts, then relax. This will stretch your quadriceps and hip muscles.
INNER THIGH STRETCH
Sit with the soles of your feet together and your knees outward. Pull your
feet toward your groin area as far as possible. Hold for 15 counts, then relax.
This will stretch your quadriceps and hip muscles.
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Moving Instructions
CAUTION! TO AVOID THE RISK OF INJURY, NEVER ATTEMPT TO MOVE THE TREADMILL WHILE
IT IS IN THE UNFOLDED OPERATING POSITION. TO REDUCE THE POSSIBILITY OF INJURY
WHILE LIFTING, BEND YOUR LEGS AND KEEP YOUR BACK STRAIGHT. AS YOU RAISE THE
TREADMILL, LIFT USING YOUR LEGS, NOT YOUR BACK. IN ORDER TO RAISE OR LOWER THE
TREADMILL SAFELY, YOU MUST BE ABLE TO LIFT 45 POUNDS (20KG). IT IS SUGGESTED YOU
ALWAYS USE THE AID OF A SECOND PERSON WHEN MOVING THE TREADMILL.
With the treadmill in the folded locked position (safety latch is engaged), grasp the handrail and place one foot
on the base as shown in the photo below. Next, with a firm grasp on handrail, place one foot on the center of
the base crossbar and carefully tilt the treadmill back until it rolls freely on the wheels. Using extreme caution,
move the treadmill to the desired location. To set the treadmill down, place one foot on the center of the base
crossbar and carefully lower treadmill onto base in resting position. Do not attempt to move the treadmill over
an uneven or rough surface.
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Power Requirements
IMPROPER CONNECTION OF THE EQUIPMENT GROUNDING CONNECTOR CAN RESULT
IN A RISK OF AN 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 ELEC-
TRICIAN.
This treadmill can be seriously damaged by sudden voltage changes in your home’s electrical power. Voltage
spikes, surges, and noise interference can result from weather conditions or from other appliances being turned
on or off. To reduce the possibility of treadmill damage, always use a surge protector (not included) with your
treadmill.
Surge protectors can be purchased at most hardware stores. The manufacturer recommends a single outlet
surge protector with UL 1449 rating as a Transient Voltage Surge Suppressor (TVSS) with UL suppressed
voltage rating of 400V or less and an electrical rating of 120VAC, 15 amps.
This treadmill must be grounded to reduce the risk of electrical shock. Grounding provides a path of least
resistance for electric current should the treadmill malfunction. This treadmill comes with an electrical cord
with an equipment-grounding conductor and a grounding plug. Always plug the power cord into a surge pro-
tector, and plug the surge protector into an appropriate outlet that is properly installed and grounded in accor-
dance with all local codes and ordinances.
This product is for use on a nominal 120-volt circuit and has a grounding plug that looks like the plug illustrat-
ed in the drawing below.
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Console Panel Functions
There are four display windows on the control panel to provide feedback information.
TIME WINDOW
TIME: Indicates elapsed time after pressing start in minutes and seconds (0-99 minutes, 0-59 seconds)
INTERVAL TIME: Indicates countdown in seconds to the next interval starting at 5 seconds and counting to 0
seconds
SPEED WINDOW
SPEED: Indicates MPH (miles per hour) or KPH (kilometer per hour) in .1 increments
DISTANCE / CALORIES WINDOW
DISTANCE: Indicates Miles or Kilometers traveled in .01 increments up to 9.99 and .1 increments starting at
10.0
CALORIES: Indicates estimated calories used based on 150 lb. person at the indicated speed, incline, and time
INCLINE WINDOW
INCLINE: Indicates incline in percent of grade 0-12% in 0.5 increments
INCLINE / PULSE
WINDOW
CALORIE / DIS-
TANCE WINDOW
TIME WINDOW
SPEED WINDOW
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Program and Operation
QUICK START / MANUAL MODE
1. Plug into a surge protector outlet. Attach the Red Safety Key on to the treadmill console.
2. Stand on the treadmill and straddle belt. Attach safety key clip to your clothes.
3. Press POWER button. There will be an eight (8) second delay after pressing the POWER button before data
can be entered. The TIME window will flash.
4. Press START/STOP button. Belt will begin to move after 4 seconds. Step on belt slowly after the belt starts
moving. Speed or incline may be adjusted by using the appropriate + (increase) or – (decrease) button.
5. To end your workout, press START/STOP button. Belt will gradually slow to zero.
6. To pause your workout, press PAUSE.
7 .To re-start after pausing: Press the PAUSE button. WARNING: THE TREADMILL BELT WILL
RESUME AT THE SPEED THE TREADMILL WAS MOVING BEFORE PAUSING.
8. Countdown Time, Preset Speed and/or Incline: Time, Speed, and Incline may be preset prior to getting
started. After pressing the POWER button, the time window will blink. Use the SPEED + or – arrows to
select your workout time, then press the ENTER PROGRAM button. The SPEED window will now be
flashing. Using the same + or – arrows, select the speed for your workout, then press ENTER PROGRAM.
Now the INCLINE window will be flashing. Use the INCLINE + or – arrows to set your workout incline,
then press ENTER PROGRAM. To start, press the START/STOP button.
INCLINE
SPEED / TIME
ENTER
POWER
PAUSE
START / STOP
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Program and Operation
PROGRAM MODE
Plug treadmill into a surge protector outlet. Attach the Safety Key on to the treadmill console.
1. Stand on the treadmill and straddle belt. Attach safety key clip to your clothes.
2. Press POWER button. There will be an eight (8) second delay before data can be entered. The TIME win-
dow will flash.
3. There are three (3) pre-set and six (6) custom pre-set programs on the HT502t. The treadmill includes FAT
BURN, CARDIO, and WARM-UP programs. To Select the program press the MODE button until desired
program is illuminated on console display.
4. Press START/STOP button. Belt will begin to move after 4 seconds. Step on belt slowly after the belt starts
moving.
CUSTOMIZING PROGRAMS in P1 and P2 Mode:
Each pre-set program (Fat Burn, Cardio, and Warm-up) can be customized in the P1 or P2 mode. After
making the program selection, the CAL/DIST window will read “OP”. The “OP” refers to “original pro-
gram” and is preset. The program name you select will illuminate on the console display. Press the MODE
button once more and the CAL/DIST window will read P1. The “P1” mode is now accessed. You can now
program the Time, Speed, and Incline in P1 mode, which will be saved for future workouts.
1) The TIME window will blink. Use the SPEED + or – arrows to select your workout time. Press ENTER
PROGRAM.
2) The SPEED window will then blink. Use the same + or – arrows to select the speed for your workout. Press
ENTER PROGRAM.
3) The INCLINE window will then blink. Use the INCLINE + or – arrows to set your workout incline. Press
ENTER PROGRAM.
To start, press the START/STOP button. To access P2 mode, press the MODE button for desired program, then
press the MODE button again (once for OP, twice for P1, three times for P2). Follow the above steps 1-3
to customize P2 settings.
TO CHANGE A PREVIOUSLY PROGRAMMED P1, P2, or user program:
Once you have programmed the P1 or P2 modes, you will need to use the PAUSE button to change the
program you previously entered. For instance to change to a new setting in P1-FAT BURN, press the FAT
BURN button twice to access P1. Then press the PAUSE button to get the WORKOUT TIME window to
flash. Follow the directions above to continue to change the program.
PROGRAM SELECTION LED
INCLINE
SPEED / TIME
ENTER
MODE
POWER
PAUSE
START / STOP
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Program Profiles
SPEED
SPEED
12
INCLINE
12
11
10
9
8
7
6
5
4
3
INCLINE
11
10
9
8
7
6
5
4
3
2
1
2
1
1 2 3 4 5 6 7 8 9 1 0
1 2 3 4 5 6 7 8 9 1 0
The Fat Burn Program is
designed to vary the treadmill
elevation, while maintaining a
constant walking belt speed.
The Cardio Program is
designed to vary the treadmill
Speed, while maintaining a con-
stant Elevation.
12
SPEED
11
10
9
INCLINE
8
7
6
5
4
3
2
1
1 2 3 4 5 6 7 8 9 1 0
The Warm Up Program is designed to gradually
increase the treadmill Speed and Elevation in the
first segment (warm up) and gradually decrease the
treadmill Speed and Elevation in the last segment
(cool down). This is also known as a Plateau pro-
gram.
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Belt Adjustment
WARNING! Do not over-tighten rollers! This will cause prema-
ture roller bearing failure!
Belt adjustment and tension performs two functions: adjustment for
tension and centering. Your new treadmill comes pre-adjusted from
the factory for tension and centering. Please follow the procedures
below if the belt shifts to the left or right while walking:
WALKING BELT IS SHIFTING TO THE LEFT (Diagram 1)
First, turn treadmill on to run at 1 mph. Using the hex key provid-
ed, turn the left rear roller adjustment bolt ¼ turn in the clockwise
direction. Next, run the treadmill at 2.5 mph. You should see the belt
start to correct itself by moving back towards the center. Repeat the
above procedure until the walking belt is centered. It may be neces-
sary to set walking belt tension once you have completed this proce-
dure if the belt feels like it is slipping while walking. Refer below
to the “Walking Belt Slipping” instructions.
Diagram 1
WALKING BELT IS SHIFTING TO THE RIGHT (Diagram 2)
First, turn the treadmill on to run at 1 mph. Using the hex key pro-
vided, turn the right rear roller adjustment bolt ¼ turn in the clock-
wise direction. Next, run the treadmill at 2.5 mph. You should see
the belt start to correct itself, moving back towards the center.
Repeat the above procedure until the walking belt is centered. It
may be necessary to set walking belt tension once you have complet-
ed this procedure if the belt feels like it is slipping while walking.
Refer below to the “Walking Belt Slipping” instructions.
WALKING BELT IS SLIPPING DURING USE (Diagram 3)
First, unplug the power cord from the surge protector. Using the hex
key provided, turn both left and right rear roller adjustment bolts the
same distance, usually a ¼ turn in the clockwise direction. Plug the
power cord back into the surge protector and run the treadmill at 2.5
mph. You should now walk on the belt to determine if the belt is still
slipping. Repeat the above procedure until the walking belt is not
slipping. The tension should be just tight enough not to slip.
Diagram 2
Note: Turning the hex key counter clockwise brings the rear
rollers and belt towards you.
Turning the hex key clockwise pushes the rear roller and belt
away form you.
Diagram 3
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Change Miles per hour to Kilometers per hour
Your treadmill will operate in British Units (miles per hour) or International Units (kilometers per hour). All
treadmills are calibrated at the factory for British Units (miles per hour). To change the display to read in kilo-
meters, follow the steps described here:
1) Turn power OFF on the console. (Do not unplug treadmill) Attach the magnet safety key to the console.
2) Activate the calibration mode switch by inserting the eraser end of a pencil into the opening in the backside
of the console (see diagram below).
3) Depressing the calibration mode switch ONCE; CL11 should appear in the TIME window.
4) Pressing the SPEED +/- button will activate your choice.
5) To accept the setting, press the POWER button.
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Maintenance Instructions
WARNING! Before performing any maintenance to your treadmill, always unplug the power cord from the
surge protector.
CLEANING
Routine cleaning of your HT502t Fitness treadmill will extend the life of your treadmill. WARNING! To pre-
vent electrical shock, be sure the power to the treadmill is OFF and the unit unplugged from the wall electrical
outlet before attempting any cleaning or maintenance.
AFTER EACH WORKOUT: Wipe off the console and other treadmill surfaces with a clean, water damp-
ened soft cloth to remove excess perspiration. USE NO CHEMICALS.
WEEKLY: Use of a treadmill mat is recommended for ease of cleaning. Dirt from your shoes contacts the
belt and eventually makes it to underneath the treadmill. Vacuum underneath treadmill once a week.
DECK LUBRICATION
The walking belt has been pre-lubricated at the factory. However, it is recommended that the walking board be
checked periodically for lubrication to ensure optimal treadmill performance.
Every 30 days or 30 hours of operation, lift the sides of the walking belt and feel the top surface of the walk-
ing board as far under as you can reach. If you feel signs of silicone, no further lubrication is required. If it
feels dry to the touch, follow the instructions below.
Keys Fitness recommends “Lube N Walk” for cleaning and lubricating the treadmill belt and deck. Ask your
retailer or call Keys Fitness at 888-340-0482. You may also use silicone such as “Napa 8300” (available at
most NAPA Auto Parts stores).
TO APPLY LUBRICANT TO THE WALKING BOARD
1) Position the walking belt so that the seam is located on top and in the center of the center of the walking
board.
2) Insert the spray nozzle into the spray head of the lubricant can.
3) While lifting the side of the walking belt, position the spray nozzle between the walking belt and the board
approximately 6” from the front of the treadmill. Apply the silicone spray to the walking board, moving from
the front of the treadmill to the rear. Repeat this on the other side of the belt. Spray approximately 4 seconds
on each side.
4) Allow the silicone to ‘set’ for one minute before using the treadmill.
WARNING: Do not over-lubricate the walking board. Excess lubricant should be wiped off with a clean
towel.
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Troubleshooting Guide
Treadmill will not start.
1. Is the Safety Key inserted into the treadmill Console?
2. Make sure the power cord is plugged into a surge protector, the surge protector is plugged into a properly
grounded outlet, and the surge protector is turned on. (Refer to “Power Requirements” on page 12).
3. Check the circuit breaker located on the front of the treadmill. If the switch protrudes, it has tripped. Wait
five minutes and then press the switch back in.
4. Check the house electrical breaker box and the circuit breaker for the room where the treadmill is located.
If it has tripped, reset or have an electrician replace the breaker in home.
5. Have an electrician check for inadequate voltage at the outlet.
Treadmill loses power during use.
1. Check the circuit breaker located on the front of the treadmill. If the switch protrudes, it has tripped. Wait
five minutes and then press the switch back in.
2. Check the house electrical breaker box and the circuit breaker for the room where the treadmill is located.
If it has tripped, reset or have an electrician replace the breaker in home.
3. If the treadmill still will not operate, please call Keys Customer Service at (888) 340-0482.
Treadmill walking belt slows during use.
1. Check to make sure the treadmill is securely plugged into an UL-listed surge protector, rated at 15 amps,
with a 14-gauge cord of five feet or less and the surge protector is securely plugged into the outlet.
2. If treadmill still will not operate, please call Keys Customer Service at (888) 340-0482.
Treadmill walking belt slips or is not centered on rear roller.
1. Refer to “Belt Adjustment and Tension” section on page 17.
2. Need help? Call Keys Customer Service at (888) 340-0482.
Treadmill Error Messages.
Your treadmill is equipped with a software package that enables error messages to be displayed when there is
a problem.
To avoid possible damage to the treadmill and the possibility of injury, do not operate the treadmill
until the problem is corrected. Call Keys Customer Service at (888) 340-0482. Or, see “Error Messages”
on page 21 of this Owners Manual.
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Error Messages
Treadmill Error Messages.
Your treadmill is equipped with a software package that enables error messages to be displayed when there is
a problem. The following error codes will be displayed in the console display windows.
Safety Interlock Error Messages
SI 1 - Safety key missing, replace and try again.
SI 2 - Over voltage protection trip. Notify Keys Fitness Customer Service.
Other Error Messages
E11 - Lack of speed feedback data from belt motor. Attempt calibration. See Calibration Sequence section on
page 22 of this Owners Manual for detailed information.
E22 - Under Speed condition detected from the belt motor. Attempt calibration. See Calibration Sequence sec-
tion for detailed information.
E33 - Over Speed condition detected from the belt motor. Attempt calibration. See Calibration Sequence sec-
tion for detailed information.
To avoid possible damage to the treadmill and the possibility of injury, do not operate the treadmill
until the problem is corrected. Call Keys Customer Service at (888) 340-0482.
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Calibration Sequence
Do not attempt to calibrate the treadmill unless an Error Code is present. See Error Messages (page 21).
Our treadmill is equipped with a software package that will perform a calibration sequence unique to your
specific model number.
Please perform the following steps to calibrate the HEALTH TRAINER 502t TREADMILL.
1. Unplug power cord from outlet strip.
2. Attach Safety Key to console.
3. Plug power cord into outlet strip.
4. Initiate calibration sequence. Locate hole on the back of the console and insert the eraser end of a pencil
through the hole and press the calibration switch twice. As show on page 18.
5. CL21 should appear in the Time window, if not, continue to press the calibration switch until CL21
appears.
Note: During the calibration sequence, the Time window will display which step you are at in the process
(C21, C22, C23 and so on). The CAL/DIST window will display which key should be entered next. For exam-
ple, “E” for Enter, “P” for Power, or “SS” for Start / Stop.
6. CL21: MPH or KPH will be flashing in the Speed window, pressing the Speed +/ - button will toggle
options. Choose MPH (KPH), press Enter.
7. CL22: 8, 10, or 12 (13, 16, or 20 in KPH mode) will be displayed in the Speed window, pressing the Speed
+/ - button will toggle options. Choose 10 (or 16 for KPH mode), press Enter.
8. CL23: FFF, UUU, or HHH will be displayed in the Speed window, pressing the Speed +/ - button will tog-
gle options. Choose UUU, press Enter.
9. CL24: 111 or 222 will be displayed in the Speed window, pressing the Speed +/ - button will toggle
options. Choose 222, press Enter.
10. CL25: AL1 or AL2 will be displayed in the Speed window, pressing the Speed +/ - button will toggle
options. Choose AL2, press Enter.
11. CL26: OPA or OPI will be displayed in the Speed window, pressing the Speed +/ - button will toggle
options. Choose OPA, press Enter.
12. CL27: Blank (nothing), “a”, “b”, “c”, or “d” will be displayed in the Incline window, pressing the Speed
+/ - button will toggle options. Choose Blank, press Enter.
13. CAL/DIST window will display “E”, Press Enter. “55” will display in CAL/DIST window.
14. Press Start/ Stop.
15. At this time, make sure you are not standing on the walking belt, as the machine will automatically initiate
belt movement and run through a complete calibration and diagnostic routine.
Press Enter, belt will begin to move, unit will begin self-calibration.
16. When Speed and Incline calibration has finished, press Power button twice, display should blank, and
treadmill should be ready for use.
To avoid possible damage to the treadmill and the possibility of injury, do not operate the treadmill
until the problem is corrected. Call Keys Customer Service at (888) 340-0482.
22
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Parts List
HEALTHTRAINER 502t PARTS LIST
DESCRIPTION
REF#
1
KEYS PART#
423-00001
423-00002
423-00003
423-00004
423-00005
423-00006
404-00001
403-00001
404-00002
406-00020
406-00001
409-00002
409-00001
405-00001
410-00001
410-00002
410-00003
410-00004
410-00005
406-00002
406-00003
406-00004
410-00006
410-00007
406-00005
406-00006
406-00007
408-00001
410-00008
406-00008
406-00009
406-00010
402-00001
410-00009
410-00010
410-00011
402-00002
411-00001
411-00002
408-00002
402-00003
402-00004
402-00005
402-00006
402-00007
402-00008
402-00009
402-00010
402-00011
QTY.
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
2
2
2
2
2
8
4
1
1
2
2
1
2
1
1
1
1
1
1
2
1
1
2
2
1
2
1
2
1
1
2
17
UPRIGHT CROSSBAR
2
LEFT UPRIGHT
3
RIGHT UPRIGHT
4
BASE TUBE
5
DECK FRAME
6
MOTOR FRAME
7
WALK BELT 430*2700*1.6
WALK BOARD 1162*610*18
POLY V-BELT 200J8(508J8)
MOTOR COVER 720*350*115
END CAP 616*130*2.5
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
FRONT ROLLER
REAR ROLLER
SIDE BOARD EXTRUSION 76*36*1085
FOAM GRIP 37*3*295
SQUARE PLUG 40*40 (mm)
PLUG 24 (mm)
PLUG 25*50
DOME PLUG 35*41*34 (mm)
TRANSPORTATION WHEEL 40*13*34 (mm)
UPRIGHT WHEEL SLEEVE 9*13*35 (mm)
INCLINE WHEEL 40*8.1*23 (mm)
BOARD ISOLATOR 35*20 (mm)
BASE FRAME PAD 45*35*8
LEFT BOOT 81*80*39
RIGHT BOOT 81*80*39
PLASTIC SPACER 60*9 (mm)
REMOTE SWITCH HOUSING 56*32.4*3
GAS SPRING QD22-600-80
ADJ FOOT M10*35*40 (mm)
LEFT BUSHING 40*30*28 (mm)
RIGHT BUSHING 34*30*20.5 (mm)
FLANGE 40*8.5*4 (mm)
RUBBER GROMMET (2 HOLES) 30*17*8F7
RUBBER GROMMET (2 HOLES) 30*17*1.5
RUBBER GROMMET (2 HOLES) 38*17*1.5
SPACER 20*10.2*17 (mm)
LATCH
LATCH BRACKET
STATIC CONDUCT
WASHER
SOCKET HEAD BOLT M8*60
SOCKET HEAD BOLT M8*80
CARRIAGE BOLT M8*60
ALLEN BOLT M10*35
HEX BOLT M10*60
HEX BOLT M10*45
ALLEN BOLT M8*50
ALLEN BOLT M8*15
23
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Parts List
HEALTHTRAINER 502t PARTS LIST
DESCRIPTION
REF#
51
KEYS PART#
402-00012
402-00013
402-00014
402-00015
402-00016
402-00017
402-00018
402-00019
402-00020
402-00021
402-00022
402-00023
402-00024
402-00025
402-00026
402-00027
402-00028
402-00029
402-00030
402-00031
402-00032
402-00033
402-00034
424-00002
406-00011
406-00012
406-00013
406-00014
406-00015
419-00001
419-00002
406-00016
406-00017
402-00035
402-00036
402-00037
402-00038
402-00039
402-00040
402-00041
407-00002
413-00001
406-00018
413-00002
414-00001
407-00003
408-00003
413-00003
402-00042
QTY.
1
ALLEN BOLT M8*40
ALLEN BOLT M8*40
SCREW M6*25
52
2
53
8
54
PHILIP SCREW ST4.2*16
PHILIP SCREW ST4.2*13
PHILIP SCREW M4*8
PHILIP SCREW M6*12
PHILIP SCREW ST4.2*13
HEXAGRAM NUT M3
NYLON LOCK NUT M8
SCREW M3*10
10
7
55
56
4
57
4
58
6
59
2
60
12
2
61
62
NYLON LOCK NUT M10
WASHER 9*38*2 (mm)
WASHER 9*22*2 (mm)
WASHER 9*16*1.6 (mm)
WASHER 9*22*1.6 (mm)
SPRING WASHER 8 (mm)
COUNTERSUNK SCREW ST4.8*16
SCREW D=1.2 L=16
PHILIP SCREW ST4.2*13
WASHER 15.2*20*1 (mm)
SCREW ST2.9*13
4
63
1
64
4
65
3
66
16
4
67
68
6
69
4
70
5
71
2
72
8
73
ALLEN WRENCH 110*75*6
CONSOLE ASSEMBLY(4LCD)
CONSOLE COVER
1
74
1
74a
74b
74c
74d
74e
74f
74g
74h
74i
74j
74k
74l
74m
74n
74o
74p
74q
74r
74s
74t
74u
74v
74w
74x
74y
1
LEFT HEART PULSE BRACKET
RIGHT HEART PULSE BRACKET
PCB BRACKET
1
1
1
BRACKET FOR SAFETY KEY
POST FOR SAFETY KEY
HANDLE PULSE SENSOR
CUP BRACKET
1
1
4
1
CONSOLE BOTTOM COVER
SCREW ST2.9*6.5
1
8
SCREW ST4.2*13
14
2
SCREW ST2.9*9.5
SCREW ST2.9*13
4
SCREW M3*10
1
HEXAGRAM NUT M3
WASHER D=2
1
2
HAND PULSE MODULE
TEL-LINE
1
1
SUPPORT PLASTIC CLIP)
REED SWITCH
4
1
OVERLAY
1
PCB
1
MEMBRANE POWER 4-LCD
PULSE HARNESS
1
2
SAFETY KEY
1
24
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Parts List
HEALTHTRAINER 502t PARTS LIST
DESCRIPTION
REF#
74z
75
KEYS PART#
414-00002
407-00001
424-00001
412-00002
411-00003
406-00019
402-00043
402-00044
402-00045
412-00003
413-00004
408-00004
413-00005
408-00005
408-00006
413-00006
408-00007
408-00008
413-00007
413-00008
413-00009
413-00010
413-00011
408-00009
426-00001
415-00001
415-00002
414-00003
414-00004
414-00005
414-00006
414-00007
414-00008
414-00009
QTY.
1
SAFETY KEY DECAL
MOTOR CONTROLLER 110V
MOTOR 110V 1.5
1
76
1
76a
76b
76c
76d
76e
76f
77
MOTOR
1
FLYWHEEL
1
FAN
1
SCREW
1
SCREW
1
WASHER
1
ACTUATOR 110V 1/15
POWER CORD
1
78
1
79
CIRCUIT BREAKER
POWER RECEPTACLE
FERRITE CORE
1
80
1
81
1
82
CHOKE ONLY FOR 220V
ENCODER HARNESS
TOGGLE SWITCH
1
83
1
84
2
85
SPEED SENSOR
1
86a
86b
87a
87b
87c
88
REMOTE HARNESS (SPEED)
REMOTE HARNESS (SPEED)
CONSOLE HARNESS (BOTTOM)
CONSOLE HARNESS (MIDDLE)
CONSOLE HARNESS (TOP)
FUSE
2
2
1
1
1
2
89
PARTS BOX
1
90
MANUAL HT502t
1
93
DIAGRAM WIRING MOTOR COVER
WARNING LABEL
1
94
1
95
ATTENTION / CIRCUIT BREAKER DECAL
HEALTH TRAINER MOTOR COVER DECAL
LEFT CUSHION DECAL
FOLD-UP DECAL
1
96
1
98
1
99
1
100
101
INCLINE DECAL
1
SPEED DECAL
1
25
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Exploded View
26
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Exploded View
CONSOLE ASSEMBLY
27
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Warranty Information
HT502t Treadmill designed and distributed by KEYS FITNESS PRODUCTS, LP – LIMITED WARRANTY
PLEASE CONSULT YOUR PHYSICIAN BEFORE USING THIS PRODUCT.
This Limited Warranty applies in the United States and Canada to products manufactured or distributed by Keys Fitness Products, LP
(“Keys”) under the kEYS brand name. The warranty period on the HT502t to the original purchaser is (lifetime) on the frame, (10) years
on the motor, (1) year parts, and (90) days labor.
Keys warrants that the Product you have purchased for non-commercial, personal, family, or household use from Keys or from an authorized Keys reseller
is free from defects in materials or workmanship under normal use during the warranty period. Your sales receipt, showing the date of purchase of the Product, is
your proof of the date of purchase. This warranty only extends to you, the original purchaser. It is not transferable to anyone who subsequently purchases the
Product from you. It excludes expendable parts. This Limited Warranty becomes VALID ONLY if the treadmill is assembled/installed by a Keys Fitness authorized
dealer/technician unless otherwise authorized by Keys Fitness in writing (if anyone other than a Keys Fitness authorized dealer/technician assembles a Keys Fitness
treadmill the warranty will be void unless accompanied by written authorization by Keys Fitness).
During the warranty period Keys will at no additional charge, repair or replace (at Keys’ option) the product if it becomes defective, malfunctions, or otherwise fails
to conform with this Limited Warranty under normal non-commercial, personal, family or household use. In repairing the Product, Keys may replace defective parts,
or at the option of Keys, serviceable used parts that are equivalent to new parts in performance. All exchanged parts and Products replaced under this warranty will
become the property of Keys. Keys reserves the right to change manufacturers of any part to cover any existing warranty.
To obtain warranty service, you must contact a Keys authorized service technician or Keys Fitness at our phone numbers located in this manual. Any parts deter-
mined to be defective must be returned to Keys to obtain warranty service. You must prepay any shipping charges, export taxes, custom duties and taxes, or any other
charges associated with transportation of the parts or Product. In addition, you are responsible for insuring any parts or Product shipped or returned. You assume the
risk of loss during shipment. You must present Keys with proof-of-purchase documents (including the date of purchase). Any evidence of alteration, erasing or for-
gery of proof-of-purchase documents will be cause to void this Limited Warranty.
This warranty does not extend to any product not purchased from Keys or from an authorized Keys reseller. This Limited Warranty does not extend to any Product
that has been damaged or rendered defective; (a) as a result of accident, misuse, or abuse; (b) by the use of parts not manufactured or sold by Keys; (c) by modifica-
tion of the Product or normal wear and tear; (d) operation on incorrect power supplies; or (e) as a result of service by anyone other than Keys, or an authorized Keys
warranty service provider. Product on which the serial number has been defaced or removed is not eligible for warranty service. Should any Product be submitted for
warranty service be found ineligible therefore, an estimate of repair cost will furnished and the repair will be made if requested by you upon Keys’ receipt of payment
or acceptable arrangements for payment.
EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, KEYS MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYS EXPRESSLY DISCLAIMS ALL WARRANTIES
NOT STATED IN THIS LIMITED WARRANTY. ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF
THIS LIMITED WARRANTY. NEITHER KEYS NOR ANY OF ITS AFFILIATES SHALL BE RESPONSIBLE FOR INCIDENTAL OR CONSEQUENTIAL
DAMAGES. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS OR THE EXCLUSION OR LIMITATION
OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS OR EXCLUSION MAY NOT APPLY TO YOU.
This Limited Warranty gives you specific legal rights and you may also have other rights that may vary from state to state. This is the only express
warranty applicable to Keys-branded products. Keys neither assumes nor authorizes anyone to assume for it any other express warranty.
PLEASE SEND IN THE ATTACHED WARRANTY CARD WITHIN TEN (10) DAYS OF PURCHASE TO REGISTER YOUR TREAD-
MILL WITH KEYS FITNESS PRODUCTS, LP. MADE IN THE USA. Thank you for your business! PLEASE MAIL WARRANTY
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Customer Service
(888) 340-0482
Keys Fitness Products
4009 Distribution Drive
Suite 250
Garland, TX 75041
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