Presentation on theme: "Technician’s Version “How To Test” The Vehicle Base System of Shared Current Paths for Voltage Drop Left click the mouse to advance. Demo."— Presentation transcript:
Technician’s Version “How To Test” The Vehicle Base System of Shared Current Paths for Voltage Drop Left click the mouse to advance. Demo
The full version of this CD contains the following: 63 slides on "Understanding Voltage Drop and Shared Current Paths“ How Connections Affect Voltage Drop. 3 page word doc. 27 slides on "Meters", Set Up and Probe Placement When Testing for Voltage and Voltage Drop. General Rules for Allowable Voltage Drop in Vehicle Circuits. 5 page word doc. 53 slides on "How to Do Voltage Drop Testing". 52 slides on "How to Test Vehicle Shared Current Paths for Voltage Drop" All slide programs are in Power Point Show. You must have power point to view them. This demo reviews: "How to Test Vehicle Shared Current Paths for Voltage Drop" Left click the mouse to advance.
About the material on this CD The power point and word documents contained on this CD are provided without expressed or implied warranty. The entire risk as to the quality and use of this information is totally the responsibility of the end user. Should any information contained in this CD prove to be defective, the end user assumes the entire cost of any and all incidental and consequential damages. Vested LLC does not warrant that the test setup and techniques shown will meet the end uses requirements. Vested LLC does not warrant that the test procedures are error free. All tests presented have been performed by a Vested LLC representative with vehicle responding results. Vested LLC, its officers, agents, or representatives will in no way be liable for any damages, including loss of profits, loss of savings, or other consequential or incidental damages arising out of the use of the test procedures contained in this CD. The tests procedures presented on the CD have been performed with the results shown. Vested LLC does not intend or imply that the test procedures replace vehicle manufacturer's authorized or recommended test procedures. Always check the information given against that recommended by the manufacturer of the vehicle you are working on. Use Left Mouse Button to Advance
How to use this Vehicle Testing Guide 1. When you see “notes” at the bottom right of a slide, right click your mouse then left click on “speaker notes” for additional information. Try this now. Right click on the mouse. Now left click on “speaker notes”. 2. Never use the “Enter” key on your computer. If you inadvertently hit the enter key or left mouse button, just right click the mouse button, and left click on “previous” to take you back. 3. Only use the left mouse button to push only the “action buttons”. 4. Use the “back” button to return to an index. 5. To begin viewing the testing guide, push this action button
How To Test the Vehicle Base System of Shared Current Paths Always Begin at the Battery. Starter Motor Voltage Feed Side Tests. Starter Motor Ground Side Tests. Battery Positive (+) Cable Pigtail Wire Tests. Battery Negative (-) Cable Pigtail Wire Tests. Ground Straps Not Attached to Negative Battery cable - Tests. Generator Voltage Feed Wire Tests Generator Ground Tests. Other Generator Tests. X X X X X X X X X
Do an "all-inclusive" voltage drop test between the bulkhead ground strap and the battery negative terminal. If excessive: Test between the bulkhead and the block if needed. Test between battery negative terminal and where the negative cable is attached to the frame or block if needed. Test between the battery negative cable and terminal if needed. Test between the cable and the cable eyelet material. Test between sheet metal cab to bed if needed. With all grounds checked, go to: How to test the generator voltage feed side. How to Test the Voltage Drop in Ground Straps that are Not Directly Attached to the Battery Negative Cable. How? Back to Index How? X X
How To Test the Voltage Drop of Connectors and Connections Of Battery Positive Pigtail Wires. Voltmeter set to millivolts Meter Positive Probe to Generator Side of B+ Stud Connection. Voltmeter negative probe on a T-pin in correct pigtail wire that goes to battery positive. It is one of these three on this vehicle. Check wiring diagram. T-pin here, or closer to generator if available. (Notes) Engine running, all accessories on. Should be zero voltage drop. Less than 50mV would be of no concern. Back