Service Manual Owner's manual

SECTION 5 - CONTROL COMPONENTS
3121222 – JLG Lift – 5-21
Also see Section 8 - Electrical Schematics for more
detailed electrical connection information.
Battery Charger Troubleshooting
No Lights at all
No Lights at all indicate that AC power to the charger is
not connected or that the AC voltage is too low. It could
also indicate an internal failure in the charger.
1. Check the connections to AC power. Check for AC
voltage between 90 and 260 VAC at the charger.
2. If the AC voltage is verified to be correct at the con-
nection to the charger, and the charger still displays
no lights at all, return the charger for service.
FAULT LED Flashing
The Fault LED flashes to indicate the micro-controller
inside the battery charger has detected a fault. The fault
detected is indicated by the number of flashes. Count the
number of flashes to determine the fault.
With any battery system, the most common problem will
be a faulty battery connection. Because of the high likeli-
hood of a battery connection problem, it is always worth-
while to confirm that all connections are good before
checking for any other problems.
[1 Flash] - High Battery Voltage
1. Indicates a high battery voltage. Check that the bat-
tery charger voltage is consistent with the battery
pack voltage. The first two digits of the four digit
model name indicate the battery voltage the charger
supports.
2. Check for wiring errors.
3. This fault will automatically clear and the charger will
restart charging when this problem is removed.
4. High battery voltage could also occur if there is
another source charging the battery. Disconnect any
other sources during charging.
5. If this problem does not clear after the battery volt-
age is confirmed to be less than 2.4V per cell, return
the charger for service.
[2 Flashes] - Low Battery Voltage
1. Indicates either a battery failure, no battery con-
nected, or a lower than expected battery voltage.
Check the battery and battery connections.
2. Check the nominal battery voltage. The first two dig-
its of the four digit model name indicate the battery
voltage the charger supports. Confirm that a nomi-
nal battery voltage is the same as the charger volt-
age.
3. This fault will clear automatically when the low bat-
tery voltage problem is rectified.
BATTERY CHARGER SPECIFICATION
OUTPUT
Nominal DC Output Voltage 24V
Maximum DC Output Voltage 33.6V
Maximum DC Output Current 25A
Maximum Interlock Current 1A
INPUT
AC Input Voltage 85-265VAC
Nominal AC Input Voltage 120VAC - 230VAC RMS
AC Input Frequency 45-65 HZ
Maximum AC Input Current 12A RMS@108VAC
OPERATION
Charging Indicator Yellow LED
100% Charge Indicator Green LED
Fault Indicator Red LED
PROTECTION
Output Reverse Polarity Electronic Protection - Auto-
matic Reset
Output Short Circuit Electronic Protection - Auto-
matic Reset
AC Overload Current Limited
DC Overload Current Limited
MECHANICAL
Operating Temperature –22°F to +122°F
(–30°C to +50°C)
Housing Shock and Water Resistant Alu-
minum