Inconsistent Unbalance Measured Values - Zipper Maschinen ZI-RWM84 Betriebsanleitung

22.2

Inconsistent unbalance measured values

When a wheel that has already been balanced is mounted again for balancing, it sometimes
seems as if the wheel has not yet been balanced.
This is usually not due to an incorrect display of the machine, but to the mounting of the wheel
on the adapter - i.e. in the two brackets the wheel has taken a different position in relation to
the centre line of the balancing machine.
Small errors of up to ten grams (4 oz) are considered normal for wheels fixed by cones; for
wheels locked with screws or bolts, the error is usually greater.
If the wheel is mounted on the adapter with screws, it may be that the screws are not
tightened properly - they should be tightened one by one, or, as is often the case, holes have
been drilled on the wheel with too much tolerance.
If a balanced wheel does not run smoothly after being reinstalled in the vehicle, this may also
be due to an imbalance in the car brake drum or (very often) to holes drilled in the rim and
drum bolts with excessive tolerances. In this case, rebalancing with the wheel mounted on the
vehicle can be useful.
ZIPPER MASCHINEN GmbH
ZI-RWM84
Case 2: Wheel is damaged or heavy material
attached on the wheel.
Spin is interrupted by operator, such as
emergency stop.
Motor is not powered
Motor is over load.
Motor winding sensor is abnormal
www.Zipper-Maschinen.at
TROUBLESHOOTING
Case 2:
Check the wheel abnormal
condition and correct it.
C
Press key to reset.
C
Press key to reset.
Check motor wire connection.
Check power supply voltage
C
Press key to reset.
Check if the wheel was blocked. Such
as blocking by wheel lift.
C
Press key to reset.
Check if the motor sensor wires normal.
C
Press key to reset.
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