Harbor Freight Tools 91129 Product manual
500 Amp Carbon Pile Load Tester
04b-11e
Made in China.
500 AMP
CARBON PILE
LOAD TESTER
Testing Capability 12 VDC Batteries, Alternators, and Starters
Load Test Capacity 160 Ah; 1000 CCA max. testing; 0-500A load
Display Meters Analog, 0-16 VDC (max.); Analog, 0-500A
Test Cycle
15 seconds per test with a 1 minute cool down;
3 tests in 5 minutes maximum
Battery Cables 3’ x 4 AWG with copper-plated clamps
ITEM 91129
OFF LOAD
WARNING
To prevent serious injury and burns:
1. Wear ANSI-approved safety goggles and
heavy-duty work gloves during setup and use.
2. Do not touch tester’s vents during or after use.
Vents get VERY HOT during use.
3. Inspect before every use;
do not use if parts loose or damaged.
4. Use as intended only.
5. Read manual before set up and/or use.
Item 91129
Read this material before using this
product. Failure to do so can result in
serious injury. SAVE THIS MANUAL.
When unpacking, make sure that the product is intact and undamaged.
If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.
Visit our website at: http://www.harborfreight.com
Copyright© 2004 by Harbor Freight Tools®. All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape
or form without the express written consent of Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.
Manual Revised 11e
Save This Manual
Keep this manual for the safety warnings and precautions, assembly, operating, inspection,
maintenance and cleaning procedures. Write the product’s serial number in the back of the
manual near the assembly diagram (or month and year of purchase if product has no number).
Keep this manual and the receipt in a safe and dry place for future reference.
Safety Alert Symbol and Signal Words
In this manual, on the labeling, and all other
information provided with this product:
This is the safety alert symbol. It is
used to alert you to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
DANGER indicates a hazardous situation which, if
not avoided, will result in death or serious injury.
CAUTION, used with the safety alert symbol,
indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE is used to address practices
not related to personal injury.
CAUTION, without the safety alert symbol, is used
to address practices not related to personal injury.
WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.
IMPORTANT SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
WARNING – When using tools, basic precautions
should always be followed, including the following:
1. Wear ANSI-approved safety goggles during
set up and use of the Load Tester.
2. Test in a well ventilated area. Explosive
gases may be produced during testing.
Do not smoke, cause sparks, or strike
matches near the battery when testing.
3. Always refer to the user manual of the battery/
alternator being tested for testing instructions
and precautions prior to using the Load Tester.
4. Do not reverse the polarity of the Battery & Alternator
Tester’s Ring Terminals or vehicle battery.
5. Do not expose this product to rain or wet conditions.
6. Maintain this product. Check for breakage
of parts and any other condition that may
affect this product’s operation. If damaged,
have the unit repaired before use.
7. Use this product in accordance with these
instructions, taking into account the working
conditions and the work to be performed. Use
of this product for operations different from those
intended could result in a hazardous situation.
8. This product is not a toy. Keep it
out of reach of children.
9. Maintain labels and nameplates on the unit.
These carry important safety information.
If unreadable or missing, contact Harbor
Freight Tools for a replacement.
10. People with pacemakers should consult their
physician(s) before use. Electromagnetic elds in
close proximity to heart pacemaker could cause
pacemaker interference or pacemaker failure.
Caution is necessary when near coil, spark plug
cables, or distributor of running engine. Engine
should be off during distributor adjustment.
Page 2 For technical questions, please call 1-800-444-3353. SKU 91129
Specic Safety Instructions
1. When connecting the Battery Cables to the
battery, avoid creating sparks; especially when
the battery is being charged. Explosive gases
are created during charging. Sparking could
also damage the vehicle electrical system.
2. Do not touch the cooling vents on the Load
Tester during or immediately after testing
the battery. They become very hot.
3. When placing the Load Tester in the vehicle’s
engine compartment, take special care that
the metal housing of the Tester does not
come in contact with either terminal of the
battery or other electrical connections.
4. Be certain of the test battery polarity before
connecting the test Cable Clamps. The red Cable
Clamp goes to the positive terminal of the battery.
The black Cable Clamp goes to the negative
Specications
terminal of the battery. Reversing Load Tester Cable
Clamps on the battery will damage the tester.
5. Do not drop the Load Tester.
6. Do not smoke or have open ames near the battery.
7. Do not connect the Load Tester to the
battery while the engine is running.
Turn the engine off before connecting.
8. The warnings and precautions discussed in this
manual cannot cover all possible conditions and
situations that may occur. It must be understood
by the operator that common sense and caution
are factors which cannot be built into this
product, but must be supplied by the operator.
SAVE THESE
INSTRUCTIONS.
Testing
Capability
Load Test
Capacity
Display Meters
Test Cycle
Battery Cable
/ Clamps
12 VDC batteries, alternators, starters
160 amp hour
Up to 1000 cold cranking amps
0 ~ 500A load
Analog, 0 ~ 16 VDC (max.)
Analog, 0 ~ 500A; 0 ~ 160Ah;
0 ~ 1000 CCA
15 seconds per test with 1 minute
cool down
3 tests in 5 minutes maximum
3 FT. long; copper plated clamps;
#4 AWG
Page 3For technical questions, please call 1-800-444-3353.SKU 91129
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