Hofmann geodyna 8200 Manuel Opérateur page 42

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4-23
4-23b
4-24
4-25
Layout
4.7 Measuring Gauge
Figure 4-23 Measuring Gauge to measure distance
and diameter
Gauge, it can be extracted and extended
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upwards
Stick-on weight holder jaw to measure the
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application position and to fix the compensation
weight
Stick-on weight fitted
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Gauge head to identify rim dimension on a
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variety of rim profiles.
Spring-suspended applicator.
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4.8 Ultrasonic detector
On the outer side of the rim the machine has an
ultrasound detector for the wheel width (Fig. 4-23b).
The sonar has a tolerance of +/- 0.5''.
Such tolerance does not jeopardise the accuracy
of the balancing
4.9 Laser (Pointer / Scanner)
Figure 4-24 The machine has a laser scanner to
automatically acquire the wheel distance and diameter
(inside of rim).
The machine uses the Laser Pointer to indicate the
precise point for fitting the stick-on weights on the rim

( 5.9). The internal scanner also performs the rim
run-out.
Note:
If the machine is set in Gauge arm mode as default, the
Laser Pointer mode can be activated by calling service.
Figure 4-25 The machine is equipped with a rear Laser
scanner for automatic reading of wheel run-out.
Prolonged exposure to laser beams may damage
the eyes.
AVOID DIRECT OR REFLECTED EYE
CONTACT WITH THE LASER
• Laser beams used in Snap-on products are rated
as Class II.
Eye protection is normally ensured by eye defence
responses, including the blink reflex.
BEAM.