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ELECTRICALS
9
ALTERNATOR CHARGING SYSTEM CHECKS ON THE VEHICLE :
Before starting ensure the battery condition :
NO
REMOVE THE ALTERNATOR
AND CHECK REGULATOR
CHECK WARNING LAMP FOR ANY DEFECT.
CHECK "WL" TERMINAL IN ALTERNATOR FOR
PROPER CONNECTION.
CHECK THE BELT TENSION. IF FOUND SLACK
ADJUST THE BELT DEFLECTION TO BE 8-10mm
WHEN PRESSED MIDWAY AT THE LONGEST POINT
BETWEEN PULLEYS (REFER FIGURE BELOW) AND
CHECK FOR CHARGING. IF THE UNIT IS STILL NOT
CHARGING REMOVE THE ALTERNATOR AND
CHECK.
SWITCH ON THE IGNITION
ALTERNATOR FOUND ACCEPTABLE
REMOVE THE
ALTERNATOR AND CHECK
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NO
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YES
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YES
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NO
DOES WARNING
LAMP GLOW ?
RUN THE ENGINE AT IDLE SPEED
I
S RATED
CURRENT OUTPUT
REACHED WITHOUT VOLTAGE
DROPPING BELOW
13.5 VOLTS ?
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DOES WARNING
LAMP GO OFF ?
NO
YES
DOES
THE VOLTMETER
READ BETWEEN
14.0 TO 14.8 VOLTS ?
ENSURE THAT THE AMMETER READING IS LESS
THAN 20A. INCASE THE BATTERY IS
DISCHARGED ALLOW CHARGING OF BATTERY
TILL THE AMMETER READING COMES TO LESS
THAN 20A. CONNECT THE VOLTMETER ACROSS
THE ALTERNATOR MAIN TERMINALS. CHECK
THE VOLT METER READING
RAISE THE ENGINE SPEED TO AROUND
2800
±
200 RPM.
SWITCH "ON" THE HEADLAMP PARKING LAMP, TAIL
LAMP AND OTHER ELECTRICAL LOADS EXCEPT
HEATER.
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YES
SCHEMATIC BELT DRIVE ARRANGEMENT
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