Associated Equipment 6031 - Manual (Page 2)

4. Note battery's rating in Cold Cranking Amps (CCA). If the rating is not
printed on the battery, use the following guidelines to estimate battery size.
Small (4 cyl) -300 CCA; Medium (6 cyl) -400 CCA; Large (8 cyl) -500 CCA.
5. Depress load switch for 10 seconds.
6. Read meter at the end of 10 seconds - with switch depressed. Refer to
LOAD TEST ANALYSIS chart.
COMPENSATING FOR LOW TEMPERATURES
Low temperature has a degrading effect on batteries and will affect test results.
This can be compensated by reading a different scale.
If battery is 50
E, read scale 100 CCA less then battery rating.
If battery is 30 E, read scale 200 CCA less than battery rating.
If battery is 10 E, read scale 300 CCA less than battery rating.
LOAD TEST ANALYSIS
METER ACTION AT END OF 10 SECONDS BATTERY CONDITION INDICATED
NEEDLE IN TEMPERATURE CORRECTED GREEN
SCALE BATTERY IS GOOD
LITTLE IF ANY MOVEMENT. NEEDLE IN
TEMPERATURE CORRECTED YELLOW SCALE BATTERY QUESTIONABLE.
RECHARGE AND RETEST.
NOTICEABLE METER MOVEMENT AND/OR NEEDLE
IN TEMPERATURE CORRECTED RED SCALE. BATTERY IS DEFECTIVE.
REPLACE
NOTE: TOP AND REAR OF TESTER WILL HEAT UP DUE TO LOAD
CURRENT. ALLOW TESTER TO COOL ONE MINUTE BETWEEN
LOAD TESTS - MAXIMUM OF 3 LOAD TESTS IN 5 MINUTE PERIOD.
EXCEEDING DUTY CYCLE MAY CAUSE INCORRECT READING AND
DAMAGE THE UNIT.
CHARGING VOLTAGE TEST
12 VOLT ONLY
This test measures the output voltage of the alternator/regulator. Check for under
or overcharging - which leads to poor battery performance and short life.
ENGINE SHOULD BE AT NORMAL OPERATING TEMPERATURE
1. Connect tester clamps to battery as described in Steps 1-2 under Battery
Load Test.
2. Turn off all lights and accessories. Operate engine at fast idle (approximately
1500 RPM).
3. Do not operate tester's load switch.
4. Read meter voltage. Meter needle should be in Green (OK) area of Charging
System scale.
5. Turn on high beam lights and blower on high. Meter needle should remain in
Green (OK) area.
6. If meter needle goes to the Red (LO or HI) areas, the charging system is not
operating correctly.
Trouble Shooting Hints
LO Voltage - may be caused by loose belt, defective voltage regulator or
defective alternator.
HI Voltage - may be caused by loose or corroded connections or defective
voltage regulator.
STARTER MOTOR TEST
This test identifies excessive starter current draw, which makes starting difficult
and shortens battery life. Perform Battery Load Test - proceed if battery is
"Good".
ENGINE MUST BE AT NORMAL OPERATING TEMPERATURE
1. Connect tester clamps to battery as described in Steps 1-2 under Battery
Load Test.
2. Disable the ignition so the car will not start.
3. Crank the engine and note the voltage reading during cranking.
4. A meter reading of 9 volts or less indicates excessive current draw. This may
be due to bad connections or a failing starter motor; or the battery is too small
for the vehicle's requirements.
ALTERNATOR TEST (MODEL 6031)
1. Connect clamps to battery per BATTERY LOAD TEST instructions number
1& 2.
2. Connect clip of test lead to positive output terminal of the alternator. Plug
other end into tester.
3. Operate engine at fast idle. Depress load switch for 5 seconds and release.
4. If light has come on and stays on while switch is depressed, one or more
output rectifiers are bad. Repair or replace alternator. If light flashes on and
then turns off, all rectifiers are good.
Proceed to look for other problem.
If light doesn't come on, rectifiers are good.
NOTE: If positive output terminal is inaccessible, the clip of the test lead may be
connected to the positive battery post. Bad connections, broken wires,
and corroded connections may make the test at the battery less accurate.
GM DIODE TRIO TEST (MODEL 6031)
1. Connect clamps to battery per BATTERY LOAD TEST instructions numbers
1 & 2.
2. Attach clip of test lead to number one terminal in plug at alternator. Do not
unplug from alternator to run test. Attach other end of test lead to tester.
3. Run engine at normal (slow) idle speed. DO NOT DEPRESS LOAD
SWITCH.
4. If light comes on and stays on, the diode trio is defective and alternator
should be repaired or replaced.
If light flashes on and goes off, diode trio is okay.