Harbor Freight Tools 93784 - Manual (Page 7)

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.