Corghi EM 9250 CompactLine Manual De Uso página 149

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.
LOCKING SLEEVE
Wheel locking device on the balancing machine used only for versions with automatic
wheel locking system.
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).
UK
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.
EM 9250 - EM 9250 C CompactLine Operator's manual 149