I am 230 lbs. and when I try to run intervals on the treadmill belt stalls out all of the time causing a stutter, and I almost fall down.

Mybe the belt is to lose see if you can ajust the tension of the Belt also to ake sure that it runs straight.

I am sure turning a treadmill ON is as simple as A, B, C. If you can't find a switch to start a treadmill, look at the magnetic cut-out button. Most treadmills have a cut-out button that had a string that you attach to your clothing, so just in case you fall off, the treadmill will stops instantly. I would never dare use my treadmill without this magnetic cut-out switch. Falling off and landing on a high speed treadmill can cause serious injuries and skin gashing. And if you can't get off on time while you're being rolled over as you fall it would make stopping the treadmill difficult. Always face the treadmill towards a wall, so if you fall and land on the floor belt, you will be tossed away from the machine. But if you face the treadmill towards the room and the back is towards the wall, if you fall you will not escape the roll-over and will be caught on the floor belt rolling and rolling again until your body has a clearance between the treadmill and the wall. Never play games just for the fun of it or to show your friends, cause treadmills can kill with a blow in the head from a fall.

This happen because the lack of LUBE maintenance schedule
Lube with 100% silicones or wax see your instr. manual
2) Lube the rollers bearing. with wd-40
3) test the drive belt motor.
4) Test the input voltage motor, if there are the motor need repair
see my personal TIPS for motor help
5) Test the output board, for input voltage motor, if there are NOT the board is faulty. see the block diagram
God bless you

Dear Sir:
The most likely cause of the problem is a worn treadmill belt and deck.

Most of the time its caused from not lubricating between the treadmill belt and deck. This causes friction and the surfaces wear putting greater stress on the electronics. The treadmill is shutting down to protect the electronics

Try to run the software calibration for easy diagnose and troubleshooting.

See my personal TIPS for HELP.

sincerely. God bless you

ernesto cuadra
managua, nicaragua

Dear Sir:
The most likely cause of the problem is a worn treadmill belt and deck.
Most of the time its caused from NOT LUBRICANTING between the treadmill belt and deck.
This causes friction and the surfaces wear putting greater stress on the electronics. The treadmill is shutting down to protect the electronics.

Remember the treadmill is complex electronic system. sincerely.

God bless you.

ernesto cuadra
managua, nicaragua. c.a.

see the block diagram that I design for easy diagnose and troubleshooting.

Dear Sir:
The most likely cause of the problem is a worn treadmill belt and deck.
Most of the time its caused from not lubricating between the treadmill belt and deck. This causes friction and the surfaces wear putting greater stress on the electronics. The treadmill is shutting down to protect the electronics.

See the block diagram that i did design for easy troubleshooting and diagnose.
sincerely. God bless you.

ernesto cuadra
managua, nicaragua. c.a.

Dear Sir:

I will try to help you:

If any error code appears on the display or there are other

malfunctions, proceed as follows:

1. Turn off the power switch for a minute and then
turn it on again.

2. Insure the tether key is properly inserted.

3. Insure the power cord is properly plugged.

4. Insure the treadmill is properly lubricated (see 4.3.

LUBRICATING THE RUNNING DECK).

5. If the error code does not disappear after the

above mentioned maintenance actions, please

contact your local TUNTURI dealer. Always give

the error code and serial number (see the sticker

at the back of the frame, below the left-hand side
rail).

4.3. LUBRICATING

THE RUNNING DECK

Lubrication is the most important service activity for the

treadmill. This is absolutely essential, if the friction of the

running deck increases noticeably or the motor begins to

heat up. Lubrication intervals must under no circumstances

exceed 200 usage kilometres; we recommend relubrication

once a month. During the first 200 km of use, the running

deck must be lubricated at intervals of 50 km. Insufficient

lubrication will cause the belt, running deck and motor to

wear out and break.

NOTE! Before you start to use your treadmill, it must be

carefully lubricated per the lubrication instructions

below! NOTE! If the treadmill is not used for at least

three weeks, it must be carefully lubricated per the

lubrication instructions below!

The need for relubrication depends to a great extent on the

running styles and weight of the user: heavy user weight and

slow speed put particular strain on the device and therefore

demand greater lubrication. Use only the teflon enclosed to

lubricate the treadmill. Contact your local TUNTURI dealer

for further supplies of teflon.

NOTE! The device must under no circumstances be

lubricated with silicone!

Please apply teflon by using the pressurised can provided
with these instructions.

instructions on the teflon bottle carefully.

1. Let the treadmill run at a slow speed and spray

teflon into the lubrication pipe underneath the

treadmill. The pipe is marked with a decal.

2. When teflon is applied for the first time, the

spraying time with the pressurised can should be

approximately 20 seconds. Later, a spraying time of

10 seconds is sufficient.

3. Teflon drops through the holes of the lubrication

pipe to the center of the running belt; the treadmill

is instantly ready for use.

Please ensure after each time that you relubricate your

treadmill that a strip of about 8" wide on the underside of the

running belt becomes moist with teflon oil along its whole
length. If necessary,

If you need further assistance, please reach me, sincerely. God bless you.

E.CUADRA
MANAGUA, NICARAGUA. C.A.

Dear Sir:

Hello, I will try to help you, inmediately.

Please follow the next step:

1) Find the set bolt(s) on the motor. This is typically run through only one side of the motor mount or may be

on both sides but it does not run the full length of the mounting. Loosen this bolt(s) but do not remove. Jack

bolt models will have flat mounts and may contain up to four bolts.

2) Look for a bolt that will tension the motor. If it has this bolt, it typically runs in the same direction parallel

with the drive and walking belts. If your treadmill is not equipped with this bolt, . If your

treadmill is equipped with this bolt (very few are) the repair will only require one person. Using 2 7/16"

wrenches, make a few turns to this bolt, tighten the bolts from Steps 1 and 2 and test your treadmill for

slipping. If belt continues to slip, repeat Steps If a second attempt does not repair the problem

3) If you have arrived at this step, let's make sure you have a drive belt tension problem. With the motor cover

removed, walk on the belt normally and try to stall the belt to make it slip. Be careful during this test. If the

problem is in the drive belt, either the drive belt will stop when stalled or the front roller will stop when

stalled. If the motor, drive belt, and front roller continue to turn when the walking belt is stalled, the problem

is with the walking belt slipping on the front roller. If the drive belt continues to turn but the front roller stalls,

you may have a broken front roller pulley. If this is the problem, you will notice it because the plastic will

usually make a loud squealing sound on the metal front roller. The entire front roller assembly repaired or

replaced (see the help topic on replacing a pulley) and the drive belt must be replaced. We suggest

replacing the drive belt as well because it is a low cost item and will most likely, have suffered unusual

wear from the problem. Another possibility is that the drive belt has worn down. In some cases, belt

dressing may help correct the problem. If not, the drive belt must be replaced.

Please check this video:

http://www.youtube.com/watch?v=yX_0vRPdMfU&feature=related

http://www.youtube.com/watch?v=zXeHMWTcLUY&feature=related

E.CUADRA

MANAGUA, NICARAGUA. C.A

hi,
Watch the following video which will help you to adjust the running belt of your treadmill.

OK

Before beginning this repair: Check to make certain that the drive belt requires adjustment. Check out belt slipping instructions or with the motor cover removed, walk on the belt normally and try to stall the belt to make it slip. Be careful during this test. If the problem is in the drive belt, either the drive belt will stop when stalled or the front roller will stop when stalled. If the motor, drive belt, and front roller continue to turn when the walking belt is stalled, the problem is with the walking belt slipping on the front roller. If the drive belt continues to turn but the front roller stalls, you may have a broken front roller pulley.
Step 1- Find the motor mounts. Many motors in Icon treadmills have a main pivot joint in which a bolt runs the full length of the motor mount. This bolt will require loosening to provide maximum adjustability. Some models have a single jack bolt and others have an auto tensioner. Single jack bolts are the easiest to adjust. Step 2- Find the set bolt(s) on the motor. This is typically run through only one side of the motor mount or may be on both sides but it does not run the full length of the mounting. Loosen this bolt(s) but do not remove. Jack bolt models will have flat mounts and may contain up to four bolts. Step 3- Look for a bolt that will tension the motor. If it has this bolt, it typically runs in the same direction parallel with the drive and walking belts. If your treadmill is not equipped with this bolt, skip to Step 4. If your treadmill is equipped with this bolt (very few are) the repair will only require one person. Using 2 7/16" wrenches, make a few turns to this bolt, tighten the bolts from Steps 1 and 2 and test your treadmill for slipping. If belt continues to slip, repeat Steps 1, 2, & 3. If a second attempt does not repair the problem, skip to Step 5. Step 4- If your treadmill is not equipped with a bolt as described in Step 3, the drive belt must be tensioned by hand. While one person applied increased tension to the drive belt, the other person should tighten the motor set bolt(s) that are described in Step 2. Tighten the bolt from Step 1 and test. If the problem is not corrected, repeat Steps 1, 2, & 4 and retest. If problem persists, skip to Step 5. Step 5- If you have arrived at this step, let's make sure you have a drive belt tension problem. With the motor cover removed, walk on the belt normally and try to stall the belt to make it slip. Be careful during this test. If the problem is in the drive belt, either the drive belt will stop when stalled or the front roller will stop when stalled. If the motor, drive belt, and front roller continue to turn when the walking belt is stalled, the problem is with the walking belt slipping on the front roller. the problem. Another possibility is that the drive belt has worn down. In some cases, belt dressing may help correct the problem. If not, the drive belt must be replaced. Step 6- The belt should be able to be turned by hand at approximately a 90 degree angle from its normal operating position