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SKU 91129

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

Specifications

Item Description 

Testing Capability 

12 VDC batteries, alternators, starters  

Load Test Capacity 

160 amp hour; Up to 1000 cold cranking 
amps maximum testing; 0 ~ 500A load 

Display Meters 

Analog, 0~16 VDC (maximum) 
Analog, 0~500A; 0~160AH; 0~1000 CCA 

Test Cycle 

15 seconds per test with 1 minute cool 
down; 3 tests in 5 minutes 

Battery Cable / Clamps  3 (L) feet, copper plated clamps, # 4 AWG 
Overall Dimensions 

10-1/2 (W) x 9 (H) x 5 (D) inches 

Weight 8.7 

lbs. 

Features 

Carrying handle and four rubber feet 

 

Save This  Manual

You will need the manual for the safety warnings and precautions, assembly instructions,
operating and maintenance procedures, parts list and diagram.  Keep your invoice with this
manual.  Write the invoice number on the inside of the front cover.  Keep the manual and
invoice in a safe and dry place for future reference.

General Safety Warnings and Precautions

WARNING: When using tool, basic safety precautions should always be followed to re-
duce the risk of personal 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 in damp or wet
locations.  Don’t expose to rain.  Keep work area well lit.  Do not use electrically
powered tools in the presence of flammable gases or liquids.

3.

Keep children away.  Children must never be allowed in the work area.  Do not let
them handle machines, tools, or extension cords.

4.

Store idle equipment.  When not in use, tools must be stored in a dry location to
inhibit rust.  Always lock up tools and keep out of reach of children.

5.

Use the right tool for the job. Do not attempt to force a small tool or attachment to do
the work of a larger industrial tool. There are certain applications for which this tool
was designed. It will do the job better and more safely at the rate for which it was
intended. Do not modify this tool and do not use this tool for a purpose for which it was
not intended.

6.

Dress properly.  Do not wear loose clothing or jewelry as they can be caught in
moving parts.  Protective, electrically non-conductive clothes and non-skid footwear
are recommended when working.  Wear restrictive hair covering to contain long hair.

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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