Measuring Imbalance - Hofmann EEWB746A Manual Del Operador

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1
5-16
Operation
5.7 Balancing
Preliminary operations:
– if necessary, perform a compensation run(Section
6.1).
– Check the wheel is clamped correctly (Section
5.1).
– Select the Type of Vehicle (Section 5.5.1).
– Read the rim dimension parameters (Chapter
5.4).
if more than one wheel of the same type needs to be
balanced (the same nominal dimensions) the data need
only be set for the first wheel. The selections stay set until
other new data is set or the machine is switched off.
5.7.1

Measuring imbalance

Having completed the preliminary operations, a
Measuring run can be launched:
 Press the START key or lower the wheel guard
according to which function has been preselected.
Wheel measuring run PROFiLiNg mode
(For machines with SONAR)
•
Lower the wheel guard from the fully raised position.
Pull the guard smoothly at medium speed, without
stops or jerking even to the side.
Note:
You must be very careful when lowering the guard,
as the machine simultaneously scans the wheel
external rim profile.
The BALANCiNG screen appears (Fig. 5-16).
After measurement the balance weights can be fitted,
or a weight minimisation or optimisation run can be
carried out. The specific icon (1, Fig. 5-16), indicates
that the machine suggests a weight optimisation or
Minimisation procedure is carried out (Chapter 5.10).
After measurement the machine stops automatically
and the wheel is braked.
The screen shows the unbalance measured for
each correction plane and the direction towards
correction.
Operator's Manual EEWB746A