Alternator Check - DeWalt DXAEJ14CA Instruction Manual

CAUTION – TO REDUCE THE RISK OF PROPERTY DAMAGE:
• Vehicles that have on-board computerized systems may be damaged
if vehicle battery is jump-started. Before jump-starting this type of
vehicle, read the vehicle manual to confirm that external-starting
assistance is advised.
• Excessive engine cranking can damage the vehicle's starter motor. If
the engine fails to start after the recommended number of attempts,
discontinue jump-start procedure and look for other problems that
need to be corrected.
• If vehicle fails to start, turn off the ignition, turn off the Jump-Starter
Power Switch, disconnect the jump-start system's leads and contact
a qualified technician to investigate why the engine did not start.

Alternator Check

Set up the unit and connect to the battery following steps 1 through 5
in the "Jump-Starter" section.
Important Notes About the Alternator Check Function
1. The unit may detect that the alternator is out of typical voltage
range because someone has added a number of accessory loads
on the charging system, thereby increasing current demand from
the alternator. MAKE SURE THAT THE ALTERNATOR IS RATED
TO SUPPORT THE APPLICATION.
2. This check may not be accurate for every make, manufacturer and
model of vehicle. Check only 12 volt systems.
PART 1
No Load (turn OFF all vehicle's accessories): The vehicle battery
must be fully charged before testing the alternator. Run the engine
long enough to achieve normal idle speed and verify there is a no-load
voltage.
1. Press the Alternator Check Button to start the check. The backlit
LCD screen will display the following to indicate the unit is analyzing
the alternator:
The Battery Status Icon will light solid and the Alternator Icon will
flash.
2. If the unit detects that the alternator is good, the backlit LCD screen
will display the following:
The Battery Status Icon, Alternator Icon, and "ALT GOOD" will light
solid.
3. If the unit detects that the alternator is out of typical voltage range,
the backlit LCD screen will display the following:
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