ET 66 - ET 66 M operator’s manual
GB
- Place the weight as indicated at the 12 o’clock position on either side or at the centre
of the rim channel.
If you decide on the rim channel, remember that the diameter is less than the
nominal and for good results, when you input the diameter value make it 2 or 3
inches less than the nominal value.
- Release the brake by pressing the lever.
- Make a test spin following the same procedures as for standard balancing.
Balancing aluminium wheels
To balance aluminium wheels we usually use self-adhesive weights and these are
positioned differently from the clip weights used in standard balancing.
The 5 ALU programs for cars and the 3 for trucks consider the various positions for the
weights (fig.15) and provide correct unbalance values using the nominal wheel data
input for aluminium rims.
- Press the
keys until the LED next to ALU lights.
- Press as needed to scroll through the ALU programs available (the weight
positions will be highlighted on the rim illustration on the display).
- Input the nominal wheel data.
If the WIDTH you input is less than 4" or the DIAMETER less than 11", the message
“Alu Err” may appear. This means that the width and diameter input on the basis of
the positions of the weights, are insufficient for the ALU program selected.
- Follow the procedures explained under the sections on Standard Balancing.
Some slight residual unbalance may remain at the end of the test spin due to the
considerable difference in shape found in rims with the same nominal diameters.
To counter this change the value and position of the weights in accordance with the
“balancing check diagram” (fig.14) until you have as accurate a balance status as you
can get.
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