Club Car TURF 272 Maintenance Manual page 208

11A
TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400, KEY-START ENGINE
Hydrometer Calibration
Most hydrometers are calibrated to read correctly at 80 °F (27 °C). The readings obtained as described above
must be corrected for temperature. For each 10 °F (5.6 °C) above 80 °F (27 °C), add 0.004 to the reading. For
each 10 °F (5.6 °C) below 80 °F (27 °C), subtract 0.004 from the reading.
Interpreting the Results of the Hydrometer Test
The approximate state of charge can be determined by referring to the following table:
SPECIFIC GRAVITY
(TEMPERATURE
CORRECTED)
1.250-1.280
1.220-1.240
1.190-1.210
1.160-1.180
If the difference between the cells is 0.020 or more, the low cell should be suspected. It may require a catch-
up charge or it may be a weak cell. When the variations between cells reach 0.050 or more, the battery should
be replaced.
Voltage Test
1. Place the red (+) probe of a multimeter set at Volts DC, 20 volt range, on the positive (+) cable and place
the black (–) probe on the negative (–) post of the battery and take a voltage reading. If it shows less than
12.4 volts, or if the lowest specific gravity reading from the hydrometer test is less than 1.225, recharge
the battery. If battery voltage is greater than 12.4 volts and specific gravity is greater than 1.225, the prob-
lem is not with the battery. If the battery does not reach 12.4 volts, or if the specific gravity of a cell is still
less than 1.225 after charging, replace the battery. See following NOTE.
NOTE: A fully charged battery that is in good condition should have a specific gravity of at least 1.225 in
all cells, and the difference in the specific gravity of any two cells should be less than 50 points.
Open circuit voltage should be at least 12.4 volts.
Load Test
1. Using a 160 ampere load tester, connect the load tester to the battery posts.
2. Turn the switch on the load tester to the ON position.
3. Read the battery voltage after the load tester has been turned ON for 15 seconds. Compare the battery's
voltage reading with the table below. Make sure you have the correct ambient temperature.
IF TEMPERATURE IS
70 °F (20 °C and above)
60 °F (16 °C)
50 °F (10 °C)
40 °F (4 °C)
30 °F (-1 °C)
Page 11a-24 2001/2002 Turf/Carryall 272 Gasoline Vehicle Maintenance and Service Manual
APPROXIMATE
STATE OF CHARGE
100%
75%
50%
25%
MINIMUM CRANKING
VOLTAGE
9.6 V
9.5 V
9.4 V
9.3 V
9.1 V
Test Procedures