Associated Equipment 6039 - Manual (Page 2)

c. Determine cold cranking amp (CCA) rating of battery by referring to car owner's manual or label on battery.
6. TESTER LOCATION
a. Locate tester as far away from battery as DC cables permit.
b. Never allow battery acid to drip on tester when reading specific gravity or filling battery.
c. Do not set a battery on top of tester.
d. Position cables to reduce risk of damage by hood, door, or moving engine parts.
e. Stay clear of fan blades, belts, pulleys and other parts that can cause injury to persons.
7. CONNECTION PRECAUTIONS
a. Check that the load knob is fully counter clockwise before connecting clamps.
b. When attaching clamps to battery posts, twist or rock back and forth several times to make a good connection. This
tends to keep clamps from slipping off terminals and helps to reduce risk of sparking.
OPERATING INSTRUCTIONS
Duty Cycle: It is difficult to specify a duty cycle on a carbon pile load tester. It will vary greatly with ambient temperature,
length of test and load current on battery.
For maximum life, we recommend that the carbon pile never be heated until it is red hot. This can be easily seen by looking in
the unit when running a test. A red glow will indicate that the discs are so hot that the binders which hold the carbon granules
together are burning and deteriorating. This will lead to a deterioration of the discs, which will be exhibited by the surfaces of the
disc turning soft and powdery.
1. Visually inspect battery for obvious damage. Do not test battery if posts are loose, case is cracked, or fluid level in cells is
below the top of the plates. With "maintenance free" batteries, see manufacturer's instructions for checking water level.
Do not test a frozen battery.
2. See connection precautions before connecting or disconnecting clamps prior to test.
3. Connect RED clamp to POSITIVE (POS, +, P) battery post and BLACK clamp to NEGATIVE (NEG, -, N) battery post. Rock
clamps to be sure of good electrical connection.
4. DETERMINE STATE OF CHARGE OF BATTERY.
a. Adjust LOAD CONTROL clockwise (CW) to ½ CCA rating for 3 seconds and release. Do not exceed 300 Amps on a
24-Volt battery.
b. Determine State of Charge by reading voltmeter and comparing to chart.
6 Volt 12 Volt 24 Volt % Charge
6.3 or greater 12.6 or greater. 25.2 or greater 100%
6.2 - 6.3 12.4 - 12.6 24.8 - 25.2 75 - 100%
6.1 - 6.2 12.2 - 12.4 24.4 - 24.8 50 - 75%
6.0 - 6.1 12.0 - 12.2 24.0 - 24.4 25 - 50%
5.8 - 6.0 11.7 - 12.0 23.4 - 24.0 0 - 25%
5.8 or less 11.7 or less 23.4 or less 0%
If the state of charge is less than 75%, charge battery and retest.
8. LOAD TEST:
NOTE: DURING HEATING CAUSED BY A LOAD TEST, THE CARBON PILE MAY EMIT STEAM AND
ODORS THAT HAVE BEEN ABSORBED BY THE CARBON DISCS. THIS IS NORMAL.
a. Adjust LOAD CONTROL knob CW to ½ the amps of the CCA rating of the battery (do not exceed 300 Amps on a 24-
Volt battery) under test for 15 seconds. During the 15-second load test, it may be necessary to adjust the load to give
the correct current. This is made necessary by the changing voltage of the battery & the change in resistance of the
tester.