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John Bean VPI System IV - Page 59

John Bean VPI System IV
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115
Wheel does not spin automatically (not for
handspin unit).
1. Tilting frame switch malfunctions.
Check if the tilting frame switch is mechanically
being activated by the tilting frame.
2. Gauge arm not in home position
Restore gauge arm to home position.
Call service if not possible.
3. Electrical malfunction.
Call service.
Gauge arm input differs from rim dimension stated
on rim or tyre.
1. Did you position the gauge arm correctly?
Refer to Chapter 5.3.1.
2. Check the offset input of the gauge arm by doing
input by hand.
Refer to the scale on the gauge.
If not identical, proceed with step 4.
3. Check the diameter of the spot on the rim where
the diameter has been measured.
If not identical, proceed with step 4.
4. A calibration is required.
Have the gauge arm calibrated.
Balancing results are inconsistent.
1. The balancer may not be installed properly.
Make sure the unit rests on its 3 feet only.
Make sure the floor is not relaying shocks from e.g.
passing trucks to the unit.
2. The wheel may be mounted incorrectly.
Check the stub shaft, cones and adaptors for play.
Use an adaptor plate to eliminate play.
Perform a Vibratory System calibration.
3. The electronics are faulty.
Call service.
A mode, display segment or indicator is
continuously shown on the display.
1. A “brown out” (power dip) may have occurred.
Switch off the unit.
Wait for 20 seconds, switch on the unit.
Call service.

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