Hofmann Megaplan EASY, Instructions For Use Manual

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I 0667
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18 GB
Err.21 Motor on for more than 15 seconds. 1. Check functioning of the phase encoder.
2. Check the connections on the power board.
3. Replace the computer board.
Err.22 Maximum number of spins possible for
the unbalance measurement has been
exceeded. 1. Check that a vehicle wheel has been mounted on the wheel
balancer.
2. Check belt tautness.
3. Check functioning of the phase encoder and, in particular, the reset
signal.
4. Replace the computer board.
Err. 24 Distance between the spokes smaller
than 18 degrees. 1. The minimum distance between the spokes where to split the
unbalance must be greater than 18 degrees
2. Repeat the SPLIT function increasing the distance between the
spokes.
Err. 25 Distance between the spokes bigger
than 120 degrees 1. The minimum distance between the spokes where to split the
unbalance must be smaller than 120 degrees
2. Repeat the SPLIT function reducing the distance between the
spokes.
Err. 26 First spoke too far from unbalance position 1. The minimum distance between the unbalance position and the
spoke must be less than 120 degrees.
2. Repeat the split function reducing the distance between the spokes.
Err.32/
Err.33/
Err.34/
Err.35/
Err.36/
Err.37 Errors related to test functions of the wheel
balancer. 1. Cancel the error and continue using the wheel balancer as normal.
7.1 - INCONSISTENT UNBALANCE READINGS
Sometimes after balancing a wheel and removing it from the balancing machine, it is found that, mounting it on the
machine again, the wheel is not balanced.
This does not depend on incorrect indication of the machine, but only on faulty mounting of the wheel on the adapter,
i.e. in the two mountings the wheel has assumed a different position with respect to the balancing machine shaft centre
line. If the wheel has been mounted on the adapter with screws, it could be possible that the screws have not been
correctly tightened, i.e. crosswise one by one, or else (as often occurs) holes have been drilled on the wheel with too
wide tolerances. Small errors, up to 10 grams (0.4 oz) are to be considered normal in wheels locked by a cone; the error
is normally bigger for wheels fastened with screws.
If, after balancing, the wheel is found to be still out-of-balance when re
fi tted on the vehicle, this could be due to unba-
lance of the car brake drum or very often due to the holes for the screws on the rim and drum sometimes drilled with
too wide tolerances.
In such case a readjustment could be advisable using a balancing machine with the wheel mounted on the car.
8 - ROUTINE MAINTENANCE
Switch off the machine from the mains before carrying out any operation.
8.1 - TO REPLACE THE FUSES
Remove the weight shelf to gain access to the power supply board where the fuses are located (see exploded dra-
wings). If fuses require replacement, use ones of the same current rating.
If the fault persists, contact the Technical Service Department.
NONE OF THE OTHER MACHINE PARTS REQUIRE MAINTENANCE.