Stimmen - 2, Durchschnittliche Bewertung: 4 ( )

Hersteller: Desa Dateigröße: 386.5 kb Dateiname: Unterrichtssprache:

If found, remove fuel (see Storing, Transporting, or Shipping, page 5). Clean tank and fuel filters (see Fuel Filters, page 12). Fill with clean fuel C) Remove wrong fuel (see Storing, Transporting, or Shipping, page 5). Clean tank and fuel filters (see Fuel 3. Dirty fuel filters Filters, page 12. Fill with correct fuel 3. Clean fuel filters (see Fuel Filters, page 12) 4. Air leak in suction system 5. Dirty nozzle 4. Tighten all fuel line connections (see Fuel Lines, page 12) 5. Replace nozzle (see Nozzle, page 10) 6. Low voltage causing motor to operate below rated speed 6. Check voltage at heater. Voltage at heater should be not less than 90% of rated voltage (108V minimum for 120V heaters) 7. Loose fuel line 7. Check and tighten all fuel line connections (see Fuel Lines, page 12) 099507 9 HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR SERVICE PROCEDURES WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Only a qualified service person should service and repair heater. UPPER SHELL REMOVAL 1. Remove screws along each side and top of heater using 5/16" nut-driver. These screws attach upper and lower shells together (see Figure 5). 2. Lift upper shell off. Upper Shell Figure 5 - Upper Shell Removal, 600,000 Btu/Hr Model FAN BLADES AND AIR DEflECTORS 1. Remove upper shell (see column 1). 2. Clean fan blades and air deflectors with clean, soft cloth moistened with kerosene or solvent (see Figure 6). 3. Dry fan blades and air deflectors thoroughly. 4. Replace upper shell. Air Deflector Fan Blade Figure 6 - Fan Blades and Air Deflectors SPARK PLUG 1. Remove upper shell (see column 1). 2. Remove spark plug wire from spark plug (see Figure 7). 3. Remove spark plug from burner head using 13/16" open-end wrench (see Figure 7). 4. Replace spark plug if damaged or heavily coated with carbon. 5. Clean and regap spark plug electrodes to .075 inch (see Figure 8). 6. Install spark plug in burner head. 7. Attach spark plug wire to spark plug. 8. Replace upper shell. Burner Head Figure 7 - Spark Plug Removal Spark Plug Wire Spark Plug .075 inch Figure 8 - Spark Plug Gap NOZZLE 1. Remove upper shell (see column 1). 2. Remove fuel line from solenoid valve using 7/16" wrench. 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16" open-end wrench. 5. Remove five screws using 5/16" nut- driver and remove burner head from combustion chamber. 6. Place burner head into vise and lightly tighten. 7. Carefully remove nozzle from burner head using 5/8" socket wrench (see Figure 9, page 11). 8. Inspect nozzle for damage. If damaged or clogged, replace nozzle. 9. Make sure plug is in place on burner head. 10. Replace nozzle into burner head and tighten firmly (175-200 inch-pounds). 11. Attach burner head to combustion chamber. 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. 10 099507 OWNER’S MANUAL SERVICE PROCEDURES Continued Figure 9 - Replacing Nozzle Spark Plug Burner Head Fuel Line Solenoid Valve Plug Nozzle Spark Plug Wire Pump Pressure Adjustment 1. Remove pressure gage plug from fuel pump port marked “GAGE.” 2. Install accessory pressure gage (part number M4574) to fuel pump port marked “GAGE” (see Figure 10). psi Pressure Gage Fuel Pump Port Marked “GAGE” Fuel Pump Port Marked “PRESS ADJ” Model Pump Pressure 350,000 Btu/Hr 100 PSI 600,000 Btu/Hr 110 PSI Figure 10 - Adjusting Pump Pressure 3. Start heater (see Operation, page 5). Allow motor to reach full speed. 4. Adjust pressure. Use small flat blade screwdriver to turn slotted screw at fuel pump port marked “PRESS ADJ.” Turn screw clockwise to increase pressure. Turn screw counterclockwise to decrease pressure. See specifications at right for correct pressure for each model. 5. Stop heater (see page 5). 6. Remove pressure gage. Replace pressure gage plug in fuel pump port marked “GAGE.” PUMP (Procedure if Pump is Binding) 1. Remove upper shell (see page 10). 2. Loosen hex screw on flange clamp at rear of motor with 5/16" nut-driver (see Figure 11). 3. Turn fan with hand (see Figure 12). 4. If fan turns freely, tighten screw on flange clamp. 5. If fan does not turn freely, replace pump. 6. Replace upper shell. Hex Screw On Flange Clamp Figure 11 - Location of Screw on Flange Clamp Figure 12 - Turning Fan with Hand Continued 099507 11 12 099507 HIGH PRESSURE PORTABLE FORCED AIR HEATER 350,000 AND 600,000 BTU/HR Fuel Filter Fuel Lines FUEL FILTERS A. Tank Fuel Filter 1. Disconnect fuel lines from pump and pump fuel filter assembly with 7/16" wrench (see Figure 15). 2. Carefully pry fuel filter loose from fuel tank with flat end of screwdriver. 3. Inspect fuel filter for water or dirt. 4. Rinse fuel filter and fuel lines with clean kerosene. 5. Replace fuel filter into fuel tank. 6. Connect fuel lines to pump and pump fuel filt...

Herunterladen

Geben Sie zwei Ziffern: