Step 1

Please choose your vehicle type.

Step 2

Please select the span length.

Please measure the span length at the measuring point (see arrow). The span length is the length of the belt that is freely suspended between two belt pulleys. For belt drives with two measuring points (two arrows in the figure), please provide the averaged span length.

Step 3

Tension belt as specified by vehicle manufacturer.

Step 4

Attach BTT Mini to reverse of belt at specified test point using appropriate O-ring.

Please choose your vehicle type.

Step 5

Make belt oscillate for measurement. To do so, pluck it firmly with finger like a guitar string. Measured frequency is shown on display. Repeat measurement at least twice.

Your setting : fC

If measured reading is different, repeat tensioning process until reading is correct.

Step 6

Turn crankshaft through revolutions in direction of engine travel. Then repeat measurement.

BTT Mini must display following reading:

Frequency : fC

If measured reading is different, repeat tensioning process until reading is correct.