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Operating Instructions
Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this
manual including all text under subheadings therein before set up or use of this product.
Testing the Battery
1. To help ensure a good connection, wipe battery
terminals with a cloth to remove any dirt and grease.
2. Connect red (positive) Cable Clamp to the positive
terminal (+) on the 6 or 12V lead-acid battery.
6V Battery Test
Note: The Load Switch is a rocker switch that
must be held down to operate properly.
1. Read Meter and confirm that battery
voltage is in the green area (see
Battery Condition section on page 6).
12V Battery Test
1. Press and hold Load Switch "on" for a
maximum of 10 seconds. Read the Meter.
Then, refer to Battery Condition section
on page 6 for the result.
2. Release the Load Switch and remove
Cable Clamps from battery.
3. IMPORTANT: During the first use of the Tester, you
will notice smoke and/or a burning smell. This is
normal and temporary. During regular use, the metal
housing of the unit will get hot enough to burn skin or
cause property damage. Carry only by the handle.
Testing the Charging System
Avoid carbon Monoxide poisoning. This gas comes from the vehicle's exhaust and is
colorless and odorless. It can cause SERIOUS INJURY or DEATH if inhaled.
Note: Perform the following tests with two people, one at
the battery and the other at the driver seat of the vehicle.
1. Connect Cable Clamps to battery
as previously described.
2. Outside, or in a well ventilated area, start the vehicle
engine and run at idle speed for a few minutes.
Testing the Starter
Note: The engine should be at normal operating
temperature and the battery should be fully
charged before doing this test. FOR 12V ONLY.
1. Connect Cable Clamps to battery
as previously described.
2. Disable the ignition so engine will not start.
(Refer to your vehicle's manual.)
Item 58944
For technical questions, please call 1-888-866-5797.
3. Connect black (negative) Cable Clamp to
the negative terminal ( –) on the battery.
Turn clamps slightly to ensure a good connection.
2. Press and hold Load Switch "ON" for a
maximum of 10 seconds. Read the Meter.
The needle should remain in the green
area. If not, battery is weak or bad.
NOTICE: To prevent overheating, allow tester
to cool for 1 minute before depressing the load
switch again, if further testing is required.
NOTICE: To prevent overheating, allow tester
to cool for 1 minute before depressing the load
switch again, if further testing is required.
4.
WARNING! TO PREVENT SERIOUS INJURY:
RISK OF FIRE. Tester becomes extremely
hot. Do not place near anything flammable.
Do not leave unattended during use.
3. Rev engine up to between 1500-2000
RPM and hold for 15 seconds.
4. After 15 seconds, read Meter. If needle points to the
red block, the charging system has undercharged
the battery. If the needle points beyond the OK
block, charging system has overcharged the battery.
5. Turn off engine and remove Clamps.
3. Have an assistant crank the engine.
Note voltage reading during cranking.
4. View Meter Display and read the voltage. A reading
of 9 Volts or less indicates excessive current draw.
This may be due to a poor connection, a failing
starter, or a battery of insufficient size for the motor.
5. When finished, disconnect Cable Clamps,
restore ignition and store tool in a clear,
dry location away from children.
Page 5
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