CHASSIS ELECTRICAL
-
Battery
54-5
BATTERY TESTING PROCEDURE
L
TEST STEP
Clean terminals and clamps.
-
Replace battery
(1) Remove hold-downs and shields.
(2) Check for broken/cracked case or cover.
OK
NG
-
Replace battery
(1) Turn headlights on for 15 seconds.
NG
(2) Turn headlights off for 2 minutes to allow battery voltage to
-
Charge battery at 5 amps.
stabilize.
(3) Disconnect cables.
(4) Read open circuit voltage.
I
OK: Open circuit voltage is more than
12.4V.
Re-test
(2) Load the battery at the recommended discharge rate (see
LOAD TEST RATE CHART) for 15 seconds.
(3) Read voltage after 15 seconds, then remove load.
(4) Compare the measured value with the minimum voltage. (See
OK: Higher than the minimum voltage
i
Normal
LL
16 (60)
9.5
LOAD TEST RATE CHART
Load test Cranking
Reserve
W-w)
rating (0°F) capacity
Application
1
240 amps
/
490 amps
/
123 minutes
1
75D26R-MF
1
240 amps
520 amps
123 minutes
75D23R-MF
1
TSB Revision
1
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