Normal Charger Operation Continued:
4. Monitor the ammeter for about 30 seconds. Under normal operating conditions (when the charger is
plugged into a vehicle with discharged batteries), the ammeter will drop to zero for 2 to 3 seconds at the
beginning of each charge cycle in order to perform a self-diagnostic test. This test will be repeated at
one hour and two hours into the charge.
CHECKING FOR PROPER OPERATION OF CHARGER
1. With the DC plug disconnected from the receptacle, insert the AC cord into an outlet. The charger relay
should NOT close. A DC voltmeter connected across the DC plug positive (+) and negative (-) pins
should indicate zero volts. NO transformer hum should be heard.
2. Unplug the AC cord from its outlet and connect the DC plug to the receptacle. The charger relay should
close with an audible “click” after a 2 to 15 second delay.
3. If the charger does not operate as in steps 1 or 2 above, refer to the wiring diagram (Figure 19-4), and
check to be sure the charger is wired correctly. If the charger operates properly, then it is ready for use.
Always monitor the first charge cycle to make sure that the charger turns off properly. If the DC cord is
disconnected during a charge, the Battery/Charging Trouble Light will come on if the batteries are less
than 90% charged. (For more detailed information on the Battery/Charging Trouble Light, See
Battery/Charging Trouble Light, Page 19-2).
CHECKING BATTERY CONDITION AFTER A CHARGE CYCLE
It is common practice for golf car mechanics to check the condition of a set of batteries after they have
charged in order to ensure that they have received a complete charge before the vehicle is used. With the
PowerDrive System 48 this is not necessary; the vehicle’s on-board computer controls and monitors the
charge cycle. If there is any problem during a charge cycle, the on-board computer will illuminate the Battery
Trouble Light located above the steering column in the center dash panel. If the Battery Trouble Light is on
after a charge cycle, refer to the Troubleshooting Charts on pages 19-8 through 19-12. If the specified test
procedures find no problems, plug the DC cord into the vehicle and let it charge until the charger shuts off
automatically. If a problem is found, correct it and then charge the vehicle. Normal voltage toward the end of
a charge cycle should be approximately 59 to 63 volts.
TO START CHARGE CYCLE:
1. Remove the DC plug from the vehicle’s charger receptacle.
2. WAIT 20 SECONDS, and then plug the DC cord back into the vehicle.
3. Monitor the ammeter for the charge rate. If the vehicle has not been driven, the on-board computer will
not perform a self-diagnostic test, the ammeter will NOT drop to zero, and the charge cycle will begin.
If the vehicle has been driven, even if only a few feet, the on-board computer will perform the self-diag-
nostic test; the ammeter will drop to zero for 2 to 3 seconds before the charge cycle begins.
19-6
NOTE
• IF THE BATTERIES ARE IN A FULLY CHARGED STATE AND THE VEHICLE HAS NOT BEEN
DRIVEN, THE ON-BOARD COMPUTER WILL NOT PERFORM THE SELF-DIAGNOSTIC TEST.
• WHEN AIR TEMPERATURES FALL BELOW 65°F (18.3°C), BATTERIES CHARGED IN UNHEAT-
ED AREAS SHOULD BE PLACED ON CHARGE AS SOON AS POSSIBLE AFTER USE. COLD
BATTERIES REQUIRE MORE TIME TO CHARGE FULLY.
NOTE
• CHARGER WILL NOT OPERATE UNLESS 20 SECOND WAIT IS OBSERVED.
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