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Page Title: 4-55. RESISTORS (RI AND R2).
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ARMY TM 9-4210-381-14 NAVY EE-000-CA-MMA-010/7053-AC AIR FORCE TO 35E9-136-31 4-55.  RESISTORS (RI AND R2). This task covers: Inspection Testing Removal Installation INITIAL SETUP: Tools Tool kit, service, refrigeration unit (Item 1, Appendix B) Crimping tool (Item 5, Appendix B) Heat gun (Item 2, Appendix B) Personnel: 1 Equipment Conditions: WARNING Disconnect input power to the air conditioner before performing any internal maintenance.  Voltages used can KILL.  Shutting the unit off at the control panel does not disconnect unit power. 1.  Disconnect air conditioner input power at source. 2.  Remove center front evaporator panel (para 4-22). 3.  Open right electric plate (para 4-31). INSPECTION 1. Check for loose wire connections (see Figure 4-58). 2. Check for cracks, signs of overheating, and other visible damage.  Replace resistor, if defective. REMOVAL 1. Remove two screws (1). 2. Remove resistor (2). TESTING 1.   Using multimeter, measure resistance across R1 (terminals 2 and 5 of K21).  If resistance is not 1.2 to 1.4 megohms, replace R1. 2.   Using multimeter, measure resistance across R2 (terminals 2 and 5 of K22).  If resistance is not 855,000 to 945,000 ohms, replace R2. INSTALLATION 1. Install wire terminals and shrink tubing to replacement resistor. 2. Place resistor (2) in mounting position. 3. Install two screws (1). 4-104

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