August 2007
SKYJACK, Page 34
Section 2 - Operation
SJM & SJII Series
Standard Machines
Warning
Explosion Hazard
Charges can ignite flammable materials and vapors. DO
NOT use near fuels, grain dust, solvents or other
flammables.
Warning
Shock Hazard
To reduce the risk of electrical shock, the charger must
only be connected to properly grounded single phase
outlet. The AC circuit protection should not exceed 15
amperes. The extension cord used must be a three
wire grounded cord of at least 14 AWG. DO NOT use
an extension cord longer than 25 feet (7.6m). Inspect
AC charger’s receptacle for the presence of water from
washing or storage. Dry thoroughly prior to use.
1. Check for a firm AC connection at the charger
receptacle. Connect the charger cord to the AC
wall plug to turn the charger on. Refer to charger
nameplate for voltage requirements.
2. Charge batteries. DO NOT leave charger
unattended for more than two consecutive days.
Severe overcharging and battery damage will result
if charger fails to turn off.
3. Disconnect charger from external power source.
3
2
1
2-31-a. Battery Charger (If Equipped)
Figure 2-17. Bycan Battery Charger
(SK2440E Shown)
Battery Status (SK 2440A/SK 2440E)
1. Green LED .............................................. Complete
2. Yellow LED ...................................... Check Battery
3. Red LED ............................................... In Progress
Battery Status (SK 2440U)
Red LED . .................................................... Charging
Red/Yellow LED .................................... 80% Charged
Green LED .................................................. Complete
Yellow LED .......................................... Check Battery
Apply The AC power. The charger will start immediately
(the transformer will hum and fan will come on). The red
LED will come on. The ammeter will show charging cur-
rent.
The current will be high for approximately 30 minutes
then it will taper off. If the current does not taper off,
disconnect the charger and check the batteries for a
shorted cell.
When the battery bank voltage reaches approximately
30 volts DC, the yellow flashing LED will illuminate. This
indicates that the charger has now entered a timed
equalizing cycle. After completing the 3.5 hour cycle,
the charger will shut off and the green LED will come
on to indicate a complete charge.
If a shorted battery cell prevents the charger from rais-
ing the battery voltage to approximately 30 VDC to
start the equalization timer, a second timer will shut down
the charger after 16 hours of continuous charging. When
this happens, the flashing yellow LED will come on to
notify the user that the battery bank should be inspected
for a shorted/damaged cell.
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