Desa B110BT Owner's Manual

Contents

9104192OWNER’S MANUALSERVICEPROCEDURESContinuedFigure 12 - Removing Air and Fuel LineHosesNozzle/AdapterAssemblyCombustionChamberFigure 13 - Removing Nozzle/AdapterAssemblyNozzle FaceNozzleNozzleSealNozzleAdapterAir LineFitting Fuel LineFittingFigure 14 - Nozzle and Nozzle AdapterNOZZLE ASSEMBLY1. Remove upper shell (see page 7).2. Remove fan (see page 7).3. Remove fuel and air line hoses fromnozzle assembly (see Figure 12).4. Turn nozzle assembly 1/4 turn to leftand pull toward motor to remove (seeFigure 13).5. Place plastic hex-body into vise andlightly tighten.6. Carefully remove nozzle from thenozzle adapter using 5/8" socket wrench(see Figure 14).7. Blow compressed air through face ofnozzle. This will free any dirt in nozzle area.8. Inspect nozzle seal for damage.9. Replace nozzle into nozzle adapter un-til nozzle seats. Tighten 1/3 turn moreusing 5/8" socket wrench (40-45 inch-pounds). See Figure 14.10. Attach nozzle assembly to burner strap.11. Attach fuel and airline hoses to nozzleassembly. See Fuel and Air Line Re-placement and Proper Routing.12. Replace fan (see page 7).13. Replace fan guard and upper shell (seepage 7).Fuel LineHoseNozzle/AdapterAssemblyCombustionChamberAir LineHoseBurnerStrapPhotocellBracketFUEL AND AIR LINEREPLACEMENT ANDPROPER ROUTING1. Remove upper shell (see page 7).2. Remove side cover screws using 5/16"nut driver.3. Remove side cover.4. Inspect fuel and air line hoses for cracksand/or holes. If fuel line hose is dam-aged, disconnect from nozzle adapter(see Figure 12) and from fuel filter (seepage 8). If air line hose is damaged, dis-connect from nozzle adapter (see Fig-ure 12) and from barb fitting on pumpend cover (see Figure 15).5. Install new air and/or fuel line. Attachone end of air line hose to barb fittingon pump end cover (see Figure 15) andthe other end to nozzle adapter (see Fig-ure 12). Attach one end of fuel line hoseto fuel filter (see page 8) and the otherend to nozzle adapter (see Figure 12).Route air and fuel line approximatelyas shown in Figure 12.Note: Hoses are not to be touching pho-tocell bracket.6. Replace side cover.7. Replace upper shell and fan guard (seepage 7).Figure 15 - Air Hose to Barb FittingBarb FittingAir HosePump End CoverContinued