Indmar Starter System Voltage Drop Test Procedure

~,. J. ~. \¥: ~'.. > ~~ Indmar ~m/Plwo~mIf/Pl~O[f!]O[f!]@ PERFORMING THE STARTER SYSTEM VOLTAGE DROP TEST Tools needed: 1. DVOM- Digital Volt/Ohm meter 2. Extension jumper lead Step 1: Connect the DVOM between the battery positive post and the main positive connection to the starter motor. Measure the voltage drop during cranking on the voltage side of the starter circuit. measurment Battery Solenoid Starter Figure 1: Checkingthe positiveside of StarterMotorCircuit

" - , Step 2: measurement Step 3: measurement Connect the DVOMbetween the battery negative post and a clean spot on the starter motor housing. Take a . measurement during cranking. This tests the voltage drop on the negative side of the circuit. Negative Post Solenoid - Figure 2: Check at a clean spot on the starter housing Connect the DVOMleads as shown. Test the connection between battery positive post and the battery positive cable terminal end while cranking. Positive Post Figure 3: Checking voltage drop between the positive battery post and the

r. " . Step 4: measurement Step 5: measurement Next test the positive battery cable for voltage drop. Connect the DVOM as shown to take a reading across the positive battery cable. Starier Solenoid Figure 4: Checking the positive battery cable resistance using a voltage drop test. Now check the connection between the battery positive. cable and the solenoid while cranking the engine. You are measuring the terminal end and connection. Solenoid Figure 5: Checking he voltage drop between the positive battery cable lug and the solenoid stud.

~ , - - Step 6: Clean and suspect terminals and replace any faulty components. Then, re-check the system by completing Steps 1 & 2 again. measurement REMEMBER: All tests are made with the engine cranking. The rule of thumb is that each termination in the circuit should have a voltage drop of no greater that 0.2 volts.

Indmar Starter System Voltage Drop Test Procedure

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