Harbor Freight Tools 91129 User Manual

500 AMP500 AMP

®

500 AMP

500 AMP500 AMP

LOAD TESTERLOAD TESTER

LOAD TESTER

LOAD TESTERLOAD TESTER

91129

ASSEMBLY AND OPERATING INSTRUCTIONS

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at http://www .harborfreight.com

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

Copyright © 2004 by Harbor F reight 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 T ools.

For technical questions and replacement parts, 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 fee t

Save This Manual

You will need the manual for the saf ety 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 co v er. 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 alwa ys be f ollowed to re­duce 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 awa y . 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 f orce 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 co vering to contain long hair.

Page 2SKU 91129 For technical questions, please call 1-800-444-3353.

7. Use eye and ear protection. Always wear ANSI approved impact safety goggles.
Wear an ANSI approved dust mask or respirator when working around metal, wood,
and chemical dusts and mists.

8. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines.

9. Maintain tools with care. Inspect tool cords periodically and, if damaged, have them
repaired by a qualified technician. The handles must be k ept clean, dry, and free from
oil and grease at all times.

10. Disconnect power. Disconnect Load T ester from battery when not in use.

11. Stay alert. Watch what y ou are doing, use common sense . Do not operate any tool
when you are tired.

12. Check for damaged parts. Before using any tool, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform its
intended function. Chec k f or an y brok en parts and any other condition that may affect
proper operation. Any part that is damaged should be properly repaired or replaced by
a qualified technician. Do not use the tool if any switch does not turn On and Off
properly.

13. Guard against short circuits. Never make contact 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 warranty. Only use accessories
intended for use with this tool. Approved accessories are available from Harbor Freight
Tools.

15. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels if taking prescription medicine to determine if your judgment or reflexes are
impaired while taking drugs. If there is any doubt, do not operate the tool.

16. Maintenance. F or your saf ety, service and maintenance should be performed
regularly by a qualified technician.

17. People with pacemakers should consult their physician(s) before using this
product. Electromagnetic fields, caused by running engines, in close proximity to a
heart pacemaker could cause interference to or failure of the pacemak er.

In addition, people with pacemakers should adhere to the following:

• Caution is necessary when near the coil, spark plug cables, or distributor of a
running engine. The engine should always be off if adjustments are to be made
to the distributor .

Specific Safety Precautions for the Load Tester

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.

Page 3SKU 91129 For technical questions, please call 1-800-444-3353.