Desa SB350D Owner's Manual Manual pdf 10 page image
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Desa SB350D Owner's Manual

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Contents
  1. safety information
  2. product identification
  3. theory of operation
  4. preventative maintenance
  5. troubleshooting
  6. service procedures
  7. specifications
  8. parts list
  9. warranty and repair service
Desa SB350D Owner's Manual Manual pdf 10 page image
10106029HIGH PRESSURE PORTABLE FORCED AIRHEATER 350,000 AND 600,000 BTU/HRFigure 7 - Spark Plug RemovalSparkPlug WireSpark PlugBurner HeadSpark Plug1. Remove upper shell (see column 1).2. Remove spark plug wire from sparkplug (see Figure 7).3. Remove spark plug from burner headusing 13/16"open-end wrench (see Figure 7).4. Replace spark plug if damaged orheavily coated with carbon.5. Clean and regap spark plug electrodesto .075 inch (see Figure 8).6. Install spark plug in burner head.7. Attach spark plug wire to spark plug.8. Replace upper shell..075inchNozzle1. Remove upper shell (see column 1).2. Remove fuel line from solenoid valveusing 7/16" wrench.3. Remove spark plug wire from sparkplug.4. Remove spark plug from burner headusing 13/16" open-end wrench.5. Remove five screws using5/16" nut-driver and remove burnerhead from combustion chamber.6. Place burner head into vise and lightlytighten.7. Carefully remove nozzle from burnerhead using 5/8" socket wrench (see Fig-ure 9).8. Inspect nozzle for damage. If damagedor clogged, replace nozzle.9. Make sure plug is in place on burnerhead.10. Replace nozzle into burner head andtighten firmly (175-200 inch-pounds).11. Attach burner head to combustionchamber.12. Install spark plug in burner head.13. Attach spark plug wire to spark plug.14. Attach fuel line to solenoid valve.Tighten firmly.15. Replace upper shell.Figure 9 - Replacing NozzleFigure 8 - Spark Plug GapSERVICEPROCEDURESWARNING: Never serviceheater while it is plugged in, op-erating, or hot. Severe burns andelectrical shock can occur. Onlya qualified service person shouldservice and repair heater.Upper Shell Removal1. Remove screws along each side and topof heater using 5/16" nut-driver. Thesescrews attach upper and lower shellstogether (see Figure 5).2. Lift upper shell off.Figure 6 - Fan Blades and Air DeflectorsFan BladeFigure 5 - Upper Shell Removal, 600,000Btu/Hr ModelUpper ShellFan Blades and Air Deflectors1. Remove upper shell (see column 1).2. Clean fan blades and air deflectors withclean, soft cloth moistened with kero-sene or solvent (see Figure 6).3. Dry fan blades and air deflectors thor-oughly.4. Replace upper shell.Air DeflectorSparkPlugBurnerHeadFuelLineSolenoidValvePlugNozzleSparkPlugWire
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This manual is suitable for:
ARL SB350DARL SB600DSB350DSB600D
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