JLG 15SP Operator Manual - Manual (Page 38)

SECTION 4 - MACHINE OPERATION
4-4 – JLG Lift – 3120774
2. Connect the battery charger AC power cord receptacle
to a properly grounded AC electrical outlet, use a suit-
able extension cord.
3. When plugged in, the charger runs through a self-diag-
nostic check. The LED’s on the front panel of the battery
charger flash in the sequence.
4. When ready to charge, the CHARGER ON LED and the
INCOMPLETE CHARGE (25%) LED on the front panel of
the charger will light up, the charger will then begin to
charge the batteries.
NOTE: If the ABNORMAL CYCLE LED comes on and stays on at
any time during the charge cycle, see sub-section follow-
ing about the ABNORMAL CYCLE indicator LED.
5. When the battery cell voltage reaches 2.37 V/cell the
80% CHARGE LED on the front panel of the charger will
light up. The charger then continues to monitor the
increase in charge until it sees no increase, and then ter-
minates the charging process.
6. The CHARGE COMPLETE (100%) LED will come on
when the charging process is finished.
7. Remove the power cord from the AC power cord recep-
tacle on the face of the charger.
Abnormal Cycle Indicator LED
If the ABNORMAL CYCLE indicator LED should come on during
the normal charging cycle of the batteries, it could indicate any of
the following conditions;
• The AC input to the charger was interrupted, i.e. local
power failure or charger cable was unplugged or bumped
and power was interrupted intermittently.
• A dead cell or cells in the battery would prevent the charger
from sensing enough voltage to complete the battery
charge.
• One or more of the battery terminal connections loose or
corroded resulting in an intermittent incomplete circuit.