Corghi Pro 750 Manuel D'utilisation page 136

CONE
Conical element with a central hole which, when inserted on the wheel balancer shaft, is
used to centre the wheels having central holes with a diameter ranging between maxi-
mum and minimum values.
DYNAMIC BALANCING
Procedure for unbalance compensation by applying two weights, one on each of the two
wheel sides.
STATIC BALANCING
Procedure for correcting only the static element of the unbalance, by applying only one
weight, usually at the centre of the rim well. Accuracy increases as the width of the wheel
decreases.
FLANGE (of the wheel balancer)
Circular crown-shaped disk against which the disk of the wheel mounted on the wheel
balancer rests. Also used for keeping the wheel perfectly perpendicular to its rotation axis.
FLANGE (adapter - centring accessory)
Device for supporting and centring the wheel. Also used for keeping the wheel perfectly
perpendicular to its rotation axis.
Mounted on the shaft of the wheel balancer by means of the central bore.
FSP
Fast Selection Program acronym
RING NUT
Wheel blocking device on the wheel balancer, fitted with elements for coupling with the
threaded hub and side pins for tightening it.
SPIN
Procedure starting from the action that causes the wheel to rotate and the subsequent
rotation of the wheel.
THREADED HUB
Threaded part of the shaft on which the ring nut is engaged to lock the wheel. It is sup-
plied disassembled from the machine.
OPT
Optimisation abbreviation.
RPA
Acronym of Ricerca Posizione Automatica (Automatic Position Search).
ULTRASONIC SENSOR
Electronic component that, together with the information collected by the internal sensor,
makes it possible to measure the wheel width.This measurement is taken by transmitting
and receiving ultrasonic wave trains.
UNBALANCE
Uneven distribution of the wheel mass that generates centrifugal forces during rotation.
SENSOR (measuring arm)
Mobile mechanical element that, when brought into contact with the rim in a specific
position, measures the geometric data: distance, diameter. Data can be measured auto-
matically if the sensor is equipped with suitable measurement transducers.
Operator's manual Service Pro 750
136