Accu-Turn 1250, Руководство по обслуживанию, Страница: 51 / 85

M 0494 -
4
1
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4 - CHECKING AND CALIBRATION OF THE GAUGES
4.1 - CHECKING OF THE RIM DISTANCE GAUGE
Check that notch 2 coincides with the flange plane as indicated in the diagram and that the distance
between notch 1 and notch 2 is 215 mm.
4.2 - CALIBRATION OF THE DISTANCE POTENTIOMETER
- Access the Self-Diagnostics Screen (see
SELF-DIAGNOSTICS
)
- Remove the weight shelf and refit the tip on the gauge rod.
- Back-off the set screws fastening the pulley on the potentiometer shaft.
- With the gauge fully retracted, turn the potentiometer shaft keeping the pulley still until reading, alongside the
wording “DIST”, a number between 1500 and 2000 .
- Then retighten the set screws to secure the pulley on the shaft.
- Proceed to calibrate the rim distance gauge (see
CALIBRATIONS
)
4.3 - CALIBRATION OF THE DIAMETER POTENTIOMETER
- Access the Self-Diagnostics Screen (see
SELF-DIAGNOSTICS
)
- Remove the diameter potentiometer from the gauge rod after backing off relative set screw.
- Slightly pull out the gauge rod and rest its stop on the machine shaft in external position close to the base.
- Turn the potentiometer shaft until reading, alongside the wording “DIAM”, a number between 1500 and 2000, then
again insert it in its correct working position.
- Lock the potentiometer with relative set screw
- Proceed to calibrate the diameter gauge (see
CALIBRATIONS
)
4.4 - CALIBRATION OF WIDTH AND EMS SONARS (OPTIONAL)
- Access the Self-Diagnostics Screen (see
SELF-DIAGNOSTICS
)
- Place a flat surface at about 12 cm from the width sonar and check that, alongside the wording “SONAR 1”, there
are variations in the number displayed.
- If during checking, after making the calibration, an inaccuracy on the measurement is found exceeding 1/2”, repeat
the calibration by varying the distance between the tyre and sensor (tol/- 20 mm from the measurement
made with a ruler) until the correct width value is obtained.
- Repeat the same operation for the EMS sonar checking the number alongside the wording “SONAR 2”.
Reading point : 215 mm
Adapter plane