SECTION II: PRIMARY, FUEL/WATER SEPARATOR, AND MANIFOLDTM 9-2350-256-20HEATER FUEL RLTERS AND RELATED PARTSWARNING• Ignition units on this engine are capable of producing extremely high voltage. The output issufficient to cause a dangerous electrical shock. Never touch uncovered or live connections.Ensure MASTER switch is in OFF position prior to removal or maintenance.• Do not smoke or use open flame when working on fuel system: explosion may occur, causingsevere injury or death.NOTERemoval and installation procedures are the same for the ignition unit on each side of the engine.a. REMOVAL1Disconnect two electrical wiring harnessconnectors (1) from manifold heater ignition unit(2).2Remove two screws (3) and two self-locking nuts(4). Remove two clamps (5) and manifold heaterignition unit (2).b. INSTALLATION1Install manifold heater ignition unit (2) into twoclamps (5) and secure with two screws (3) and twonew self-locking nuts (4).2Connect two electrical wiring harness connectors(1) on manifold heater ignition unit (2).NOTEFollow-on maintenance: Install powerplant (see paragraph 3-1)4-20 REPLACE MANIFOLD HEATER FUEL RETURN SOLENOID VALVETHIS TASK COVERSa. Removalb. InstallationINITIAL SET-UPTools:Equipment Conditions:Tool kit, general mechanic's (Appendix C, item 53)• Engine deck removed (see paragraph 9-51)• MASTER switch turned to OFF positionWARNINGDo not smoke or use open flame when working on fuel system: explosion may occur, causing severeinjury or death.4-43
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