Lost magnet treadmill

If you need to purchase a new safety key that was designed to work with your Gold's Gym machine, here is a link to one that is listed for seven models of the 450. But please make sure that your exact model is listed to ensure compatibility.
Safety key 6043675 Fitness and Exercise Equipment Repair Parts

Dear Sir:
Go inmediately and buy a small piece of magnet in any Hardware.

Since the key in any treadmill, is small magnet, and ready.

sincerely. God bless you

Dear Sir:

You can use any magnet , you can buy from any Hardware, the key is a magnet for procedure to turn on the machine.

sincerely. God bless you.

ernesto cuadra
managua, nicaragua

www.fitnessrepairparts.com

www.treadmilldoctor.com

www.gympart.com

sincerely.

Here is another source for the Landice L7 cardio treadmill key.

Maybe it uses a magnet, like mine does. Are there any conspicuous places on the front that you might think a magnet may be placed? Mine is on the lower front left side and has a square, pushed in molding in the plastic where the magnet sits.

Generally NO, but try something like a fridge magnet, it worked for me on my HyperExtension treadmill

here's a link to an ebay page of treadmill safety keys for horizon treadmills. hope this helps!

Info from PDF files located on Sportcrafts website under manuals.
E3 – No speed sensor reading. Unit shuts down. This is the most difficult repair diagnose. The speed
sensor is connected to the frame of the treadmill near the drive pulley on the front roller. There is a
small magnet on the side of the pulley wheel. The sensor tip must be no more than 5mm from the
magnet. If for any reason the distance is greater than 5mm the treadmill will shutdown
Adjust or replace speed sensor.
Treadmill: Speed Sensor Replacement
1. Make sure your treadmill is unplugged before you begin.
2. Remove the motor cover located in the front of your treadmill, it is held on by a few screws.
3. Locate your speed sensor; it is the small T shaped part with a red and black wire coming from it.
4. Remove the 2 screws in the speed sensor and remove the old sensor.
5. Place the adjustment holder on the frame with the open holes facing the pulley wheel, the prongs facing
up and way from the pulley wheel. Insert the screws but don’t tighten fully.
6. Now place the speed sensor over the prongs with the square part facing the pulley wheel and the red and
black wire to the far right.
7. Plug the treadmill back in and slide the speed sensor until it is 5mm from the magnet inside the pulley
wheel, you may have to do this several times until you can position it so it no longer shuts down. Use 2
nickels to figure out the spacing. The width of 2 nickels is 5mm.
8. Once you find the correct position tighten the screws all the way; being careful not to touch any of the other electronics
9. Place the motor cover back on and enjoy your machine.

you can use eny magnet, and if you need the string you can epoxy glue it to the magnet you are using