Figure 4-2. Battery Charger BC1, Exploded View (Sheet 2 of 2)

Figure 4-2. Battery Charger BC1, Exploded View (Sheet 1 of 2)

TM-9-6115-604-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 5 Kw. 1 Phase-2 Wire 1 Phase -3 Wire 3 Phase -4 Wire 120. 120/240 and 120/208 Volts Manual
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TM 9-6115-604-34 NAVFAC P-8-633-34 1. RIVET 25. HEXAGON HEAD SCREW 2. NAMEPLATE 26. HEXAGONAL NUT 3. FRONT COVER 27. LOCKWASHER 4. HEXAGON HEAD SCREW 28. FLAT WASHER 5. LOCKWASHER 29. REACTOR ASSEMBLY 6. ENCLOSURE 30. CAPSCREW 7. ENCLOSURE REAR PANEL 31. TERMINAL BOARD 8. RESISTOR 32. SCREW AND CAPTIVE WASHER ASSEMBLY 9. RESISTOR 33. ZENER RESISTOR 10. FLAT WASHER 34. ROUND HEAD SCREW 11. HEXAGON HEAD SCREW 35. TRANSISTOR 12. HEXAGON HEAD SCREW 36. CAPSCREW 13. SCREW 37. HEATSINK 14. FUSE BOARD 38. SILICONE DIODE 15. OUTPUT FUSE 39. EQUALIZER TIMER 16. INPUT FUSE 17. HEXAGON HEAD SCREW 40. DC VOLTMETER 18. LOCKWASHER 41. DC AMMETER 19. HEXAGONAL NUT 42. BATTERY CHARGER BC1 ASSEMBLY 20. BRACKET 43. DIODE 21. CUT OUT RELAY 44. RETAINING CLIP 22. FIXED CAPACITOR 45. FUSE HOLDER 23. HEXAGON HEAD SCREW 46. FUSE HOLDER 24. TRANSFORMER 47. ZENER DIODE Figure 4-2. Battery Charger BC1, Exploded View (Sheet 2 of 2) e. Inspect the diodes (38 and 43) for signs of damage or deterioration. Check the diodes (38) with an ohmmeter set to the RX1 scale as follows: (1) Temporarily install the diode (38) on the heatsink (37). Do not reconnect any electrical wiring to the diode (38). (2) Connect an ohmmeter across the nipple (or pig-tail) lead of the diode (38) and the heatsink (37) and note the reading. (3) Reverse the ohmmeter leads from their positions in step (2), above, and note the reading. (4) Compare the two readings obtained in steps (2) and (3), above. One of the two readings should indicate a high resistance and the other should indicate a low resistance. If the readings do not indicate both a high and low resistance value, or if either a zero resistance or an infinity reading was obtained, the diodes (38) are faulty and must be replaced. CAUTION Do not change the position of the red slider band or the green slider band on the resistor (9) If It Is to be reused, otherwise the float voltage and equalizer voltage values will be changed and will need to be readjusted before the battery charger BC1 can be returned to service. f. Inspect the resistors (8 and 9) for signs of damage or deterioration. g. Inspect the transistor (35) for signs of damage or deterioration. Replace the transistor (35) as necessary. 4-5

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