ARMY *TM 9-6115-464-34 AIR FORCE TO-35C2-3 ... - Igor Chudov

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ARMY TM 9-6115-464-34AIR FORCE 35C2-3-445-2NAVY NAVFAC P-8-624-341. Screw2. Lockwasher3. Nut4. Lockwasher5. Bracket6. Threaded rod7. Screw8. Lockwasher9. Nut10. Nut11. Tooth Iockwasher12. Potentiometer (R18)13. Nut14. Nut15. Tooth Iockwasher16. Potentiometer (R16)17. Nut18. Nut19. Tooth Iockwasher20. Potentiometer (R15)21. Nut22. Nut23. Tooth Iockwasher24. Potentiometer (R15)25. Nut26. Nut27. Tooth Iockwasher28. Potentiometer (R11)29. Nut30. Nut31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.Tooth IockwasherPotentiometer (R12)SpacerSealing washersNutTooth IockwasherTest jackScrewLockwasherGasketElectrical connector (P2)ScrewLockwasherGasketElectrical connector (P5)ScrewLockwasherGasketElectrical connector (J3)ScrewLockwasherGasketElectrical connector (P1)CoverNameplateGasketPrinted circuit board assemblyHousingFigure 3-68. Electro-Hydraulic Governor Control Unit, Exploded View (Sheet 2 of 2)(1) Clean housing and cover with dry cleaning solvent (Federal Specification P-D-680) and dry withfiltered compressed air.(2) Clean electrical components with a clean, lint-free cloth lightly moistened with an approved solvent.(3) Visually inspect cover and housing for cracks, dents, defective paint and other damage.(4) Inspect potentiometers for cracks, burns, and other damage.(5) Inspect electrical connectors for bent or broken pins, cracks, burns, and other damage.(6) Inspect printed circuit board assembly for cracks, breaks, burned or damaged components and coldsolder joints.(7) Inspect all wiring for burned, chaffed, or damaged insulation and loose connections.(8) Repair housing and cover as follows:(a) Straighten dents and warping.(b) Remove defective paint and corrosion. Treat and paint.3-162
ARMY TM 9-6115-464-34AIR FORCE TO 35C2-3-445-2NAVY NAVFAC P-8-624-34(9)(10)(11)f. Assembly.Repair wiring harness as follows: If the wiring harness has sustained damage and requires repair orrebuild, refer to figures 3-69 (50/60 Hz) or 3–70 (400 Hz) as required for layout identification andmaterial requirements and Appendix A for detailed soldering and replacement procedures.Test and replace printed circuit board components using figures 3-71, 3–72, 3-73,3-74, and 3-75as appropriate.If any soldered component on the printed circuit board must be replaced, refer to Appendix A fordetailed soldering and replacement procedures.(1) Assemble governor control unit in reverse order of removal procedures using figure 3-68 as a guide.NOTEPrior to installing assembled governor control unit in housing and pouring pottingcompound, perform tests (subparagraph g.) below.(2) After completing assembly, repeat tests g.(2), (3), (4) (checks only) (5) and (6).(3) After final assembly, use an ohmmeter to check for open circuit between each pin on all connectorsand each test point and the governor control unit housing. There shall be no sign of continuity.g. Testing.CAUTIONUnpotted governor control unit printed circuit board must be positioned as specified instep (1) below. Failure to observe this caution could result in damage to theequipment.(1) Position governor control unit printed circuit board as shown in figure 3-76.(2) Perform resistance test as follows:(a) Turn potentiometers (R11, R12, R14, R15, R16 and R18, figure 3-68) to the full clockwise position.(b) Preset adjustable resistors (R2 and R10, figure 3-71) to mid-range.(c) Using an ohmmeter, check resistance of points in table 3-5 for specified values (400 Hz resistancetest values are given in table 3-6).NOTEObserve polarity of connections specified in the table. Return potentiometer toclockwise position after each check.(3) Perform magnetic amplifier bias test as follows:(a) Install governor control unit in test circuit illustratedNOTEin figure 3-77.Frequency of power source (G1) must conform to frequency of governor control unitbeing tested (50/60 Hz or 400 Hz).(b)(c)(d)Turn potentiometers R11, R12, R14, R15, R16, and R18 to full clockwise position.Adjust R11 and R12 to obtain a balanced reading of 450 milliamperes on M2 and M3.Turn R12 to full clockwise. Reading of M2 and M3 shall be O to 300 milliamperes and shall bebalanced within 50 milliamperes.3-163
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(c)(d)(e)Pull all slack from the le
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ARMY *TM 9-6115-464-34 AIR FORCE TO-35C2-3 ... - Igor Chudov

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