Summary of the content on the page No. 1
500 AMP 500 AMP 500 AMP
500 AMP 500 AMP
LOAD TESTER LOAD TESTER
LOAD TESTER LOAD TESTER LOAD 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 Freight Tools . All rights reserved. No portion of this manual
or any artwork contained herein may be reproduced in any shape or form without
Summary of the content on the page No. 2
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 Carry
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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 kept clean, dry, and free from oil and grease at all
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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 blac
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Operation Testing the Battery 1. Wipe the battery terminals with a cloth to remove any dirt and grease. 2. Make sure the Load Knob (C) is in the off position. Connect the red (positive) Cable Clamp (A) to the positive terminal (+) on the 12 V battery. See photo on page 4. 3. Connect the black (negative) Cable Clamp (B) to the negative terminal (–) on the battery. 4. Turn the Load Knob (C) clockwise until the DC ammeter reads 1/2 the Cold Crank Amp (CCA) rating or three times the amphour (AH) ca
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Testing the Charging System 1. Turn the Load Knob (C) counterclockwise to the Off position. 2. Connect the Cable Clamps to the battery as previously described. Avoid Carbon Monoxide poisoning. This gas comes from the vehicle’s exhaust and is colorless and odorless. It can cause SERIOUS INJURY or DEATH if inhaled. 3. Outside, or in a well ventilated area, start the vehicle engine and run at fast idle speed. 4. View the DC Volt Meter and read the Alt. - Reg. condition. Refer to the “Battery Condi
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Starter Motor Test If starting your vehicle is difficult, you may have unnecessary starter motor draw, which dramatically shortens battery life. This test identifies starter motor performance. 1. Make sure your engine is running at normal operating temperature, and that the battery is fully charged and in good condition. 2. Connect the Red Clamp (+) to the positive (+) terminal post on the battery. Connect the Black Clamp (-) to the negative (-) terminal post on the battery. 3. Turn the Load K
