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WORKSHOP MANUAL

T...102/122 - TC...102/122

Map of functional units

With the voltmeter tester, measure the voltage at the

battery terminals. If the value does not rise but tends

to fall, even slowly, it means that the regulator is not

charging suciently and must be replaced.

If the voltmeter shows no value it means that the

charger fuse is blown.

B) Checking the upper charging limit

Start the engine and take it to maximum speed. With

the tester in the voltmeter function, measure the

voltage at the battery terminals. The amount should

slowly rise and settle at 14-15 Volts after about 10-15

minutes.

If this value is exceeded to the extent that the engine

stops due to the self-resetting protection cutting in

(at approximately 16 Volts) it means that the regulator

is charging too much and must be replaced.

The job of the voltage regulator is to supply a ow of

current to the battery at a constant voltage of about

14 -15 Volts, cutting in every time that the output volt-

age from the generator exceeds this threshold.

A faulty regulator may recharge the battery insuf-

ciently (therefore needing frequent recharging) or,

otherwise, may supply overloading that causes the

self-resetting protection to cut in.

Before checking the recharge circuit, make sure that:

– all connections are correct;

– the earth connections are rmly connected, espe-

cially the earth connection to the regulator;

– the battery is charged and not sulphated;

– the charger fuse is not blown.

A) Checking the lower charging limit

Start the engine and keep running at minimum with

the headlights on.

Validity

General informations

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Stiga T 102 Series User Manual

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