TM-9-2920-225-34 HMMWV Generator Direct Support & General Support Maintenance Manual Download
Page 223 of 263
TM 9-2920-225-34 I I FRAME 2 1. 2. 3. 4. CAUTION Do not use a battery or test lamp to make a continuity test. Reverse battery connection will burn out diodes instantly. Check stator (1) for continuity using multimeter. Touch test probe of multimeter to each pair of stator leads (2). If there is not continuity between all three stator leads, generator is not repairable. Check that stator shroud (3) is not cracked or broken. If shroud is damaged, generator is not repairable. NOTE On ohmmeters that use one 1 l/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. Using multimeter, check three positive rectifiers (4) by touching positive test probe of multimeter to base of rectifier and negative test probe to top of rectifier. Multimeter must show low resistance. If multimeter does not show low resistance, get a new rectifier. Using multimeter, check three negative rectifiers (5) by touching positive test probe of multimeter to base of rectifier and negative test probe to the top of rectifier. Multimeter must show low resistance. If multimeter does not show low resistance, get a new rectifier. GO TO FRAME 3 TA 103703 2-207