ADJUSTMENTS
AND
TESTING
SIMPLA 50B-BT
SIMPLA 55BT
SIMPLA 65BT
SIMPLA 50BST
Doc. 10021896
Issued 09/2010
Ver. AB
Page 2 of 16
8. Check the functioning of the chopper.
9. If necessary, calibrate the chopper card as
follows:
•raise the machine (free traction wheels);
•unscrew the rear instrument panel to access
the chopper;
•set the continuous voltage measurement
tester with a full scale of 50V;
•insert the test prods on the fastons marked
with M+ and M- on the chopper card;
•switch on via the main key;
•select the forward movement until activating
the movement microswitch (so you can hear
the click of the relays) slightly rotating the
potentiometer on the handlebars with respect
to zero;
•in that moment, the voltage measured by the
test prod must be 3-5V. If necessary, adjust
the VMIN trimmer so the output voltage is at
the required value;
•at this point, press the operation levers fully
down until you reach maximum speed. You
should see a value of 24V (battery
maximum); if this is not the case, adjust the
VMAX trimmer to obtain the required output
voltage;
•acceleration adjustment: rotate the ACC
trimmer clockwise. This adjustment brings the
voltage to the maximum required value (24V)
in about 7-8 seconds;
•check the reverse gear is functioning;
•check the motor braking (releasing the
accelerator, the machine must stop within
about 1 metre)
Adjusting the battery charger
1. Check the set-up of the battery charger corresponds to the
type of battery actually installed on the machine.
2. To adjust the battery charger, proceed as follows:
•use a screwdriver to remove the small plastic cap;
•set the dip switches inside, on the basis of the table
below;
•close the plastic cap
