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15
ELECTRICALS
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
å
YES
å
YES
á
NO
DOES WARNING
LAMP GLOW ?
RUN THE ENGINE AT IDLE SPEED
I
S RATED
CURRENT OUTPUT
REACHED WITHOUT VOLTAGE
DROPPING BELOW
13.5 VOLTS ?
á
DOES WARNING
LAMP GO OFF ?
NO
å
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.
å
YES
SCHEMATIC BELT DRIVE ARRANGEMENT