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SKU 93784

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

Page 7

Testing the Starter

Note: The engine should be at normal operating temperature and the battery

should be fully charged before doing this test.

1.

Disable the ignition so the engine will not start. (Refer to your vehicle’s manual.)

2.

Connect the Cable Clamps (A, B) to the battery as previously described.

3.

Have an assistant crank the engine.  Note the voltage reading during cranking.

4.

View the Meter Display (D) and read the voltage. A reading of 9 volts or less

indicates excessive current draw for a 12 V system.  This may be due to a poor
connection, a failing starter, or a battery of insufficient size for the motor.

Caution: DO NOT press the Toggle Switch (C) during this test.

INSPECTION, MAINTENANCE, AND CLEANING

1.

Store in a clean and dry location.

2.

Clean the outside of the unit with a damp cloth. Never use solvents to clean any

part of this tool. Use compressed air to blow out debris from the load vents.

3.

After each use, clean the Cable Clamps of any possible battery electrolyte.

Apply a thin coat of silicon grease to prevent corrosion.

4.

If needed, turn the black screw at the bottom center of the gauge to adjust the

needle so that it points exactly at the zero while the unit is disconnected.

REPLACEABLE PARTS

The Battery Tester has no replaceable parts.

Summary of Contents for 93784

Page 1: ...005 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 For technical questions and replacement parts please call 1 800 444 3353 50 AMP LOAD BA 50 AMP LOAD BA 50 AMP LOAD BA 50 AMP LOAD BA 50 AMP LOAD BATTER TTER TTER TTER TTERY AND Y AND Y AND Y AND ...

Page 2: ...rs away while operating a power tool Distractions can cause you to lose control Protect others in the work area from debris such as chips and sparks Provide barriers or shields as needed 4 Do not force the tool Use the correct tool for your application The correct tool will do the job better and safer at the rate for which it is designed SPECIFICATIONS y t i l i b a p a C g n i g r a h c h t i w r...

Page 3: ...sonal safety devices reduce the risk for injury Safety impact eye goggles and heavy work gloves are available from Harbor Freight Tools Battery acid may cause severe injury to eyes always wear ANSI approved safety goggles Avoid touching eyes while working with or near a battery In case of accidental contact rinse eyes with clean water for at least 5 minutes and see a doctor immediately 11 Maintain...

Page 4: ...e vehicle on the frame engine or fender take special care that the metal housing of the Battery Tester does not come in contact with either terminal of the battery or other electrical connections 16 Do not drop the Battery Tester as it may affect proper operation 17 Do not smoke or have open flames near the battery 18 Reversing BatteryTester Cable Clamps on the battery will damage the tester 19 Do...

Page 5: ... Turn clamps slightly to ensure a good connection 4 With the clamps connected the tester s gauge will show the battery s current charge If it is less than 12 V on a 12 V battery or 6 V on a 6 V battery disconnect the battery and recharge before testing If recharging will not bring the reading above the appropriate voltage noted above the battery is defective If it shows no reading verify that the ...

Page 6: ... e t s s i e l d e e n r e t e M y a l p s i D e h t f I y r e t t a b e g r a h c e r 5 2 2 1 w o l e b f I e v i t c e f e d s i y r e t t a b e h t 5 2 2 1 r e v o f I G S k c e h C d e g r a h c s i d y l t r a p y a m l l e c r a l u c i t r a p a 5 2 0 0 s t n i o p 2 r e v o s l l e c n e e w t e b G S n i e c n e r e f f i d a s i e r e h t f I t s e t e r d n a r o d e t a f l u s r e h t...

Page 7: ... a 12V system This may be due to a poor connection a failing starter or a battery of insufficient size for the motor Caution DO NOT press theToggle Switch C during this test INSPECTION MAINTENANCE AND CLEANING 1 Store in a clean and dry location 2 Clean the outside of the unit with a damp cloth Never use solvents to clean any part of this tool Use compressed air to blow out debris from the load ve...

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