Lode ERGOMETERS, Service Manual

Page: 24 / 51

Service manual Valiant treadmill V1.00 24
3.2 Replacement instruction grade potentiometer
You can find the grade potentiometer at the right side of the treadmill under the walking deck.
Fig.1: Location Grade potentiometer Fig.2: Bottom side treadmill
If, for some reason, the grade potentiometer is broken, the treadmill could be in a specific
angle. To change the potentiometer, the best position would be the 25 % angle. Sometimes the
treadmill doesn’t allow you to set the angle to 25 % because of the defective potentiometer.
e.g. “STOP” will be displayed.
In this case you should lift the rear end of the treadmill (the opposite side of where the motor
is located.) Place this end on a stable frame so you have space to work under the treadmill.
Fig 3: Lift backside of the treadmill
WARNING
Remove the power cable from the treadmill before you start working on the
treadmill .
Remove the allen screw which holds the potentiometer in position.
Desolder the wires from the potentiometer. Heat the gear wheel at the axle of the
potentiometer and slide it off without damaging it.
Remove the screw which holds the potentiometer in the metal plate.
Put the new potentiometer, 10-turns 10K, into the metal plate and fasten it with the screw.
Place the gear wheel on the axle again buy using Loctide # 638.