Repair Manual

STARTING AND CHARGING

16 - 16

EMOUNTING

Check the new diode.

Press the new diode in the diode support observing the marking : red for “ + “ , black

for “ - “.

Mount the diode support on the alternator.

CHECKING OF THE RECTIFYING BRIDGE

After dismounting the diode support perform a visual checking of the diodes to avoid

defects ( short circuits, broken ) as well as the connections state.

A. CHECKING OF THE POSITIVE DIODES

Place the red terminal ( positive cable )

of the ohmmeter on the support , in “ d “

point then the black terminal ( negative

cable ) in sequence in “ a “ point , “ b

point and “ c “ point. After reversing the

cables and repeating the checking the

ohmmeter needle must not deviate

( resistance = ).

B. CHECKING OF THE NEGATIVE DIODES

Place the negative terminal of the ohmmeter on the support, then on “e” point,after

that, the red terminal in sequence ,on “a” point , “ b” point and on “c “ point.

For a correct operation, the ohmmeter needle must deviate. After reversing the cables

and repeating the checking on the mentioned points , the ohmmeter needle must not

deviate ( resistance = ).

ALTERNATOR

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