The wheel fails to spin when the
START button is pressed (the
machine does not start)
Check that the guard is not raised (message
"A Cr" displayed).
-Lower the guard.
The wheel balancer provides
unsteady unbalance values
The machine was jolted during the spin.
- Repeat the wheel spin, making sure that
the machine is not subjected to knocks or
vibration while acquisition is in progress.
The machine does not firmly rest on the floor.
- Check that the machine is standing stably.
The wheel is not locked correctly.
-Tighten the locking ring nut firmly.
Several spins are to be
performed to balance the wheel
The machine was jolted during the spin.
- Repeat the wheel spin, making sure that
the machine is not subjected to knocks or
vibration while acquisition is in progress.
The machine does not firmly rest on the floor.
-Make sure that the floor support is firm.
The wheel is not locked correctly.
-Tighten the locking ring nut firmly.
The machine has not been calibrated cor-
rectly.
-Perform the sensitivity calibration proce-
dure.
The entered geometric data are not correct.
-Make sure that the entered data correspond
to the wheel dimensions and correct them
if necessary.
WARNING
The "Spare parts" handbook does not au-
thorise users to carry out work on the ma-
chine with the exception of those operations
expressly described in the user manual. It
only enables users to provide the technical
assistance service with precise information
in order to minimise delays.
64
MAINTENANCE
WARNING
The company is not to be held responsible
for any claims deriving from the use of
non-original spare parts or accessories.
WARNING
Unplug the machine from the socket and
make sure that all moving parts have been
locked before making any adjustments or
maintenance work.
Do not remove or modify any part of the
machine (except for service interven-
tions).
WARNING
Keep the working area clean.
Never use compressed air and/or jets of
water to remove dirt or residues from
the machine.
Take all possible measures to prevent
dust from building up or raising during
cleaning operations.
Keep the wheel balancer shaft, the secur-
ing ring nut, the centring cones and flange
clean. These components can be cleaned
using a brush previously dripped in envi-
ronmentally friendly solvents.
Handle cones and flanges carefully so as to
avoid accidental dropping and subsequent
damage that would affect centring accuracy.
After use, store cones and flanges in a
place where they are suitably protected
from dust and dirt.
If necessary, use ethyl alcohol to clean the
display panel.
Perform the calibration procedure at least
once every six months.
User manual ProLine 640