Starter Motor Voltage Drop Tests - Jeep J-10 Series 1982 Technical & Service Manual

1F-16 STARTING SYSTEMS
STARTER MOTOR VOLTAGE DROP TEST DIAGNOSIS AND REPAIR SIMPLIFICATION (DARS] CHARTS
Note: Refer to Chapter A —General Information for details on how to use this DARS chart.
STARTER MOTOR VOLTAGE DROP TESTS
Chart 1
STEP SEQUENCE
STARTER MOTOR FULL LOAD CURRENT TEST
CLEAN AND
CONNECT
BATTERY
CABLES
• REMOVE COIL
WIRE FROM
DISTRIBUTOR
AND CONNECT
TO GROUND
I GROUND COIL WIRE
i CONNECT VOLTMETER
i ENGAGE STARTER MOTOR
t OBSERVE VOLTMETER
1COMPARE AMPS FROM
STEP 1 AND VOLTS TO
CHART
CONNECT •ENGAGE
TURN LOAD CONTROL •OBSERVE
HEAVY
LOAD
TESTER
STARTER
MOTOR FOR
THREE
SECONDS
AND
OBSERVE
VOLTMETER
UNTIL VOLTMETER
INDICATES SAME
VOLTAGE AS WHEN
STARTER MOTOR
WAS ENGAGED
OK
6 CYL. - 150-180 AMPS
8 CYL. - 160-210 AMPS
6 CYL. - ABOVE 180 AMPS
8 CYL. - ABOVE 210 AMPS
• BATTERY CABLES AND •
SOLENOID NOT TESTED
OR
• BATTERY CABLE AND
SOLENOID REPAIRS
COMPLETED
AMMETER.
NOTE AMPS FOR
USE IN LATER
STEPS.
REPAIR
STARTER
VOLTAGE DROP TEST
(NOTE TEST POINTS IN ILLUSTRATION)
MAXIMUM VOLTAGE DROP
BY FULL LOAD AMPERAGE
AMPS
150-210
215-295 300-420
425-600
VOLTS 0.5 V
0.7 V 1.0 V
1.5 V
RESULT
70066A
*
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