Lode ERGOMETERS, Service Manual

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Service manual Valiant treadmill V1.00 25
Resolder the wires onto the potentiometer.
Fig. 4: Wiring the potentiometer.
Now you have to open the front cover of the treadmill, by removing the white housing.
See service manual appendix B.
When the white housing of the motor compartment has been removed connect a DC voltmeter
to pin 2 ( U-elevation) and 3(GND) of connector 5. The DC meter should be in the range from
0-20 volt.
Fig.5: Connector 5, Power supply board.
Fig.6: Enlarged
If the treadmill is not is the highest position, set U-elevation by turning the potentiometer at
0,5 Volt and press the “arrow up” key till the grade indicates 25%. The treadmill should
elevate to 25%.
At the display you will see the set angle and the actual angle. The actual angle at the display
of the control unit will remain 2-3% (because the potentiometer is not mounted in the
treadmill.)
When the treadmill has reached 25% you can turn the potentiometer till U-elevation has
reached 4.30 Volt ± 0.05 Volt. Read the Voltage from your DC Voltmeter.
Now switch off the treadmill and place the potentiometer with the gear back in position.