CHAPTER 6: MAINTENANCE OF ELECTRICAL SYSTEMS AND CIRCUITSTM 9-2350-256-206-21 REPLACE/REPAIR POWERPLANT WARNING HORNTHIS TASK COVERSa. Removalb. Disassemblyc. Assemblyd. InstallationINITIAL SET-UPTools:Parts:Tool kit, general mechanic's (Appendix C, item 53)Lockwashers (2) (Appendix G, item 105)Lockwashers (2) (Appendix G, item 116)WARNINGBe certain MASTER switch is OFF when working on electrical system to avoid electrical shock and burns.a. REMOVAL1 Disconnect two connectors (1) from powerplantwarning horn (2).2 Remove powerplant warning horn (2) and groundlead (3) by removing two screws (4) and twolockwashers (5).3 Disconnect connector (6) from warning horn relay (7).4 Remove warning horn relay (7) by removing twoscrews (8) and two lockwashers (9).b. DISASSEMBLYDisassemble lead (see Chapter 6, Section VII).c. ASSEMBLYAssemble lead (see Chapter 6, Section VII).d. INSTALLATION1 Install warning horn relay (7) using two screws (8)and two new lockwashers (9).2 Connect connector (6) to warning horn relay (7).3 Install powerplant warning horn (2) and groundlead (3) using two screws (4) and two newlockwashers (5).4 Connect two connectors (1) to powerplant warninghorn (2).6-54
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