Hofmann geodyna 8200 Manuel Opérateur page 142

142
Trouble shooting
Gauge arm inputs differ from wheel dimensions
stated on rim or tyre.
1. Did you position the Arm correctly?
• Refer to Chapter 5.7.1.
2. Check the offset input of the arm by entering the
value manually.
• Refer to the scale on the gauge.
• If not identical, proceed with step 4.
3. Check the diameter on the spot on the rim where
the diameter has been measured.
• If not identical, proceed with step 4.
4. Calibration is required.
• Have the gauge calibrated.
Balancing results are unreliable.
1. The balancer may not be installed properly.
• Make sure the unit rests on its three feet only.
• Make sure the floor is not transmitting shocks, for
example from trucks passing close to the unit.
2. The wheel may be mounted incorrectly.
• Check stub shaft, cones and adapters clearance.
• Use appropriate spacers to eliminate play.
• Perform a measuring unit calibration.
3. The electronic system may be faulty.
• Call technical service team.
A mode or indicator is continuously shown on the
screen.
1. A power dip may have occurred.
• Switch off the unit.
• Wait for 20 seconds, switch on the unit.
• Call technical service team.
Wheel lifter jammed.
1. The wheel lifting system is not activated.
• Press the control pedal (
2. The electronic system may be faulty.
• Call technical service team.

5.1.1).