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Direct drive – COATS IBS 2000 Wheel Balancer User Manual

Page 22

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16 • COATS IBS 2000 Interactive Balancing System

Direct Drive

Plane Separation

Normally, balancer calibration is all that is necessary

to resolve weight chasing. If, after calibration, the bal-
ancer still chases weights, follow these steps:

1. Perform the balancer calibration procedure as

outlined in the previous section.

2. Remove the 4-ounce weight from the calibration

wheel and place the balancer in the non-roundoff
mode.

3. Using clip-on weights and modeling clay (as nec-

essary), fine balance the wheel so that the weight dis-
plays show less than 0.02-ounce on both planes.

4. Attach the 4 ounce calibration weight to the inner

plane and spin the wheel.

5. The weight readings should be 3.88 to 4.12 ounce

on the inner plane, and 0.00 to 0.12 ounce on the
outer. If these readings are not obtained, adjust the A
dimension using the touch pad to adjust the readings.
Also, insure that the D reading is correct (i.e.: a 14-inch
tire should read between 13.6 and 14.3). After adjust-
ing the A measurement, note the A and D figures and
follow the A/D arm calibration procedure.

A/D Arm Calibration

As with the balancer calibration procedure, watch

the display screen carefully. It will provide all of the
steps and directions required to perform the proce-
dure. Not all screens may be shown here.

1. Select CALIBRATE ARM from the menu.

2. Press CONTINUE.

3. Review the voltage scales on the display screen.

If the indicator line is not within the area indicated by
the brackets, contact a Service Partner for poten-
tiometer adjustment and press cancel. Otherwise
press continue.

4. Press Continue.

5. Move the arm to the home position, if it is not

already there, then press continue.

6. Mount a 185 x 14 or 195 x 14 wheel and press

continue.

7. Enter the A and D values that were found in step

five of the plane separation procedures.

8. Once the A and D measurements are entered,

pull the A/D arm out and touch the tip to the wheel rim
flange and hold it there while pressing CONTINUE.

9. Rotate the A/D arm around to the lower point at

which it will touch the rim. Hold it in position and press
CONTINUE.

10. The calibration is complete, and the screen will

return to it's main display.

11. Return to Calibrate balancer.