GLOSSARY
below is a brief description of some technical
terms used in this manual.
SELF-CALIBRATION
This procedure calculates suitable correction
coefficients starting from known operating
conditions. It improves the machine ac-
curacy by correcting to a certain extent the
calculation errors that may result from the
alteration of the machine's features over the
course of time.
CALIBRATION
See SELF-CALIbRATION.
CENTRING
Procedure for positioning the wheel on the
wheel balancer shaft to ensure that the shaft
axis corresponds to the wheel rotation axis.
BALANCING CYCLE
Sequence of operations to be performed by
the user and the machine from the beginning
of the spin until the wheel is braked to a
stop after calculating the unbalance values.
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
maximum 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 ele-
ment 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 bal-
ancer rests. Also used for keeping the wheel
perfectly perpendicular to its rotation axis.
FLANGE (adapter - centring accessory)
Device for supporting and centring the wheel.
78
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.
RING NUT
Wheel blocking device on the wheel balanc-
er, 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 subse-
quent rotation of the wheel.
THREADED HUB
Threaded part of the shaft on which the
ring nut is engaged to lock the wheel. It is
supplied disassembled from the machine.
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 spe-
cific position, measures the geometric data:
distance, diameter. Data can be measured
automatically if the sensor is equipped with
suitable measurement transducers.
ELECTRICAL
SYSTEM GENERAL
DIAGRAM
AP1
Feeder and control board
AP5
Search card
bP1
Internal pick-up
bP2
External pick-up
FU1
Fuse
FU2
Fuse
M1
Motor
QS1
Main switch
SQ1
Safety guard micro-switch / start
button
xS1
Power supply socket
RP1
Internal distance potentiometer
RP2
Diameter potentiometer
RP3
Outer distance potentiometer
User manual ProLine 650