TM-9-2920-225-34 HMMWV Generator Direct Support & General Support Maintenance Manual Download
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TM 9-2920-225-34 FRAME 4 CAUTION Do not use a battery or test lamp test. Reverse battery connection instantly . NOTE to make a continuity will burn out diodes 1. 2. 3. On ohmmeters that use one 1 1/2-volt dry cell, low resistance readings will be approximately 20 to 30 ohms. On ohmmeters that use a 3-volt dry cell, low resistance readings will be approximately 10 to 15 ohms. Positive rectifier (1) has a coating of epoxy for in- sulation. Check resistance of positive rectifier (1). Touch positive test probe of multimeter to checkpoint one (2) and negative test probe to each of three rectifiers (3, 4, and 5). Ohmmeter must show low resistance when negative test probe is touched to each rectifier. Check resistance of negative rectifier (6). Touch negative test probe of multimeter to checkpoint two (7) and positive test probe to each of three rectifiers (8, 9, and 10). Ohmmeter must show low resistance when positive test probe is touched to each rectifier. If rectifiers (3, 4, 5, 8, 9, and 10) do not have low resistance, get new ones. END OF TASK TA 103608 2-108