Hofmann Pro42, Operator'S Manual

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Page 3-19
Chapter III Operation
Attach the Targets/Pods
The targets/pods are attached to the wheels using the
wheel clamps. The targets go on the front wheels, the
measuring pods on the rear .
There are several methods of attachment depending
on the wheel lip configuration. The integrated claws
provide the versatility needed to grab virtually any
wheel. The claws can be rotated to adjust for different
wheel configurations.
Claws may have sharp edges. To avoid personal injury, use
caution when working with wheel clamps.
The clamps should be installed in a straight-up vertical
manner (knob at the top).
Use the mounting method that provides the greatest
security to keep the target from falling off the wheel.
Most wheels can be grabbed from the outside-in by
placing the claws between the bead of the tire and the
outside edge of the rim. Others can be mounted on
the inside of the rim such as with steel wheels.
For outside rim mounting:
1. Extend the clamp to a size slightly larger than the
rim by turning the knob.
2. Place the upper claws on the outside of the top
of the rim. Push the claws in between the tire
bead and the rim. It may be necessary to “pop”
the upper clamp bracket with the palm of your
hand to seat well. Note that it is not necessary for
the clamp to be mounted perfectly vertical on the
wheel.
3. Tighten the clamp by turning the knob clockwise
until the lower claws engage the rim.
4. Push the lower claws into place. Again, it may
be necessary to pop them in further for security.
Continue tightening the knob until secure.
5. Test the security by pulling outwards on the
clamp. If it comes off easily, reattach the clamp or
select an alternative mounting method.