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SKU 91129

For technical questions, please call 1-800-444-3353.

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 terminal of the battery.  Reversing Load Tester Cable Clamps on the
battery will damage the tester.

5.

Do not drop the Load Tester as it may affect proper operation.

6.

Do not smoke or have open flames near the battery.

7.

Do not connect the Load Tester to the battery while the engine is running. Turn the
engine off before connecting.

Warning: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be under-
stood by the operator that common sense and caution are factors which cannot be
built into this product, but must be supplied by the operator.

Unpacking

When unpacking, check to make sure that all the parts are included. Refer to the Assembly
section, and the Assembly Drawing and Parts List at the end of this manual.  If any parts are
missing or broken, please call Harbor Freight Tools at the number on the cover of this
manual as soon as possible.

(A) Red Cable: Clamp to
Battery Positive (+) Terminal

(B) Black Cable: Clamp to
Battery Negative (-) Terminal

Summary of Contents for 91129

Page 1: ...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 w...

Page 2: ...l injury and damage to equipment Read all instructions before using this tool 1 Keep work area clean Cluttered areas invite injuries 2 Observe work area conditions Do not use machines or power tools i...

Page 3: ...t between battery terminals with anything metal during load testing 14 Replacement parts and accessories When servicing use only identical replacement parts Use of any other parts will void the warran...

Page 4: ...Tester as it may affect proper operation 6 Do not smoke or have open flames near the battery 7 Do not connect the Load Tester to the battery while the engine is running Turn the engine off before conn...

Page 5: ...attery The CCA and AH rating are printed on the battery label Maintain load for 15 seconds to simulate an actual load on the battery After 15 seconds has passed the unit will sound with a beep 5 View...

Page 6: ...ing the Specific Gravity SG with a Hydrometer If SG is less than full charge check for possible charging system trouble Recharge to full level BAD Red area If the DC Volt Meter needle is falling the b...

Page 7: ...ank the engine briefly to determine the voltage reading during cranking A display reading of 9 volts or less indicates excessive current draw This may be caused by a bad connection of a failing starte...

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