PIAGGIO Ape - Page 68

Specification Desc./Quantity
Voltmeter Voltmeter in DC. (minimum full scale 20 V class 1).
Rheostat Rheostat 70 ohm 17 Amp.
Battery 12V Battery - 24 to 24 Ah
REGULATION CHARACTERISTICS
Specification Desc./Quantity
Minimum voltage closing switch 12.4 to 13.1 V.
Return current 2 to 7.5 Amp.
N.B.
THE VOLTAGE REGULATOR MUST BE FIXED ON A VIBRATION FREE AND HEAT-CONDUCTING
BENCH.
Verifiche e controlli
STARTER FAILURES DUE TO ALTERNATOR UNIT
Possible Cause Operation
Failure of motor rotation Check that:
- the battery is not drained
- the terminals of the ignition switch or the battery are not oxi-
dised or loose
- the brushes are not worn and the springs are pressing on them
sufficiently (minimum load 0.850 kg)
- the rotor or the inductor are not grounded.
Very slow engine rotation In addition to performing the checks in case of rotation failure
of the motor, check that the coils of the inductor winding or rotor
are not shorted.
Excessive noise Check that the bearings of the supports are not worn.
WARNING
THE AXIAL CLEARANCE OF THE ROTOR MUST NOT BE MORE THAN 1 MM.
WARNING
THE NARROWING OF THE INSULATION BETWEEN THE MANIFOLD BLADES MUST HAVE A
DEPTH OF NOT LESS THAN 0.4 MM.
THE BATTERY DOES NOT CHARGE WHILE RUNNING
Possible Cause
Operation
Break of the charging circuit Locate and repair the break (in most cases they are oxidised
or loose terminals).
Fuse blown Defective regulator: Replace
Damaged battery: Replace.
Fuse holder with oxidised contacts.
Defective contact of brushes with the manifold Restore the sliding between brushes and guides.
Lack of residual magnetism Reenergise the Dynamotor.
Interrupted or ground rotor Replace the rotor.
Rotor in short circuit Clean the threads of the manifold; if not getting good results,
replace the rotor.
Broken belt Replace.
Defective regulator Replace.
THE BATTERY CHARGES ONLY PARTIALLY
Possible Cause
Operation
Defective regulator Replace.
Belt slide Register or replace.
THE BATTERY RUNS DOWN WITH THE DYNAMOTOR OFF
Possible Cause
Operation
Defective regulator Replace.
Electrical system APE TM Benzina
ES - 68