User Manual
Please read and understand all instructions before use. Retain this
manual for future reference.
4210962
Top Post Battery
Master Cut-Off Switch
V 2.9
2Visit www.princessauto.com for more information
4210962V 2.9
Top Post Battery
Master Cut-Off Switch
SPECIFICATIONS
Type Top Post
Voltage 12 to 24V
Current Rating 100A Continuous / 600A Cranking
Size 5/8 in. (1.6 cm)
IMPORTANT SAFETY PRECAUTIONS
WARNING! The warnings, cautions and instructions discussed in this
instruction manual cannot cover all possible conditions and situations that
may occur. Common sense and caution are factors that cannot be built into this
product, but must be supplied by the operator.
NOTE: Keep this manual for the safety warnings, precautions and operating,
inspection and maintenance instructions.
SPECIFIC SAFETY PRECAUTIONS
1. Keep any ignition source, such as flames, sparks, or embers away
from the battery.
2. Batteries contain sulfuric acid. Any contact should be avoided.
3. In case of any contact, flush with a large amount of water.
4. Always disconnect cables from the battery prior to repairs.
Top Post Battery Master Cut-Off Switch
3Visit www.princessauto.com for more information
4210962 V 2.9
ELECTRICAL SAFETY
WARNING! To reduce the risk of electric shock, be certain that the device is
connected to a properly grounded receptacle.
1. Disconnect the device from the power source before cleaning,
servicing, changing parts / accessories or when not in use.
2. Protect yourself against electric shocks when working on electrical
equipment. Avoid body contact with grounded surfaces such as pipes,
radiators, cooking stoves and refrigerators. There is an increased
chance of electrical shock if your body is grounded.
3. Do not disconnect from the power source in place of using the ON/OFF
switch on the device. This will prevent an accidental startup when the
device is connected to the power supply.
CAUTION! All wiring should be performed by a qualified electrician.
BATTERY SAFETY
Even a discharged battery may still carry a charge. To prevent a shock, place
battery terminal caps or covers over the terminal to prevent accidental contact.
TOOL USE AND CARE
1. Do not alter any parts of the device or accessories. All parts and
accessories are designed with built-in safety features that may be
compromised if altered.
2. Make certain that the power source conforms to the requirements of
your equipment.
3. When wiring an electrically driven device, follow all electrical and
safety codes, as well as the most recent Canadian Electrical Code (CE)
and the Canadian Centre for Occupational Health and Safety (CCOHS).
4. Always disconnect cables from the battery and ground cable prior to
repairs. Always reconnect cable to the battery and the ground cable
after the repairs.
Top Post Battery Master Cut-Off Switch
4 For technical questions call: 1-800-665-8685
4210962V 2.9
INSTALLATION
1. Remove the negative cable from the battery post.
2. Bolt the battery master cut-off switch on to the negative post.
3. Turn the green ON/OFF knob to the OFF position.
4. Bolt the negative cable onto the male end of the battery master
cut-off switch.
5. To attach the fuse link, bolt the eyelets to either end of the battery
master cut-off switch.
6. Firmly turn the green ON/OFF knob to the ON position in order to start
the engine.
7. To use the battery master cut-off switch as a power saver / anti-theft
device, turn the green ON/OFF knob to the OFF position. The vehicle
will not be able to start when the green knob is in the OFF position.
NOTE: The unit will not fit onto the battery’s positive terminal. The
positive terminal is larger than the negative terminal.
TROUBLE SHOOTING
If the battery master cut-off switch will not operate, check all electrical
connections and ensure that they are secure and free of dirt and grime.
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