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12. Release hex-body of spark plug from vise. 13. Replace burner strap onto combustion chamber. 14. Attach spark plug wire to spark plug. 15. Attach fuel and air line hoses to nozzle assembly. 16. Replace fan (see Fan, page 8). 17. Replace fan guard and upper shell. Bend Here to Adjust Gap Gap Figure 18 - Spark Plug Gap, 35/55,000 BTU/Hr Models 45° Burner Strap Figure 19 - Spark Plug Rotation, 35/55,000 BTU/Hr Models Only Spark Plug (110/150,000 BTU/Hr Models) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove fan (see Fan, page 8). 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16" open-end wrench. 5. Clean and regap spark plug electrodes to .075" gap. 6. Install spark plug in burner head. 7. Attach spark plug wire to spark plug. 8. Replace fan (see Fan, page 8). 9. Replace fan guard and upper shell. Burner Spark Plug Wire Head Spark Plug Figure 20 - Spark Plug Removal, 110/ 150,000 BTU/Hr Models Bend Here to Adjust Gap Gap Figure 21 - Spark Plug Gap, 110/150,000 BTU/Hr Models 10 OWNER’S MANUAL SERVICE PROCEDURES Continued NOZZLE (35/55,000 BTU/Hr Models) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove fan (see Fan, page 8). 3. Remove fuel and air line hoses from nozzle assembly. 4. Turn nozzle assembly 1/4 turn to left and pull toward motor to remove. 5. Place plastic hex-body into vise and lightly tighten. 6. Carefully remove nozzle from the nozzle adapter using 5/8" socket wrench. 7. Blow compressed air through face of nozzle. This will free any dirt in nozzle area. 8. Inspect nozzle sleeve for damage. Fuel Line Hose Nozzle Assembly Combustion Chamber Air Line Hose Figure 22 - Removing Air and Fuel Line Hoses, 35/55,000 BTU/Hr Models 9. Replace nozzle into nozzle adapter until nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench (40-45 inch- pounds). 10. Attach nozzle assembly to burner strap. 11. Attach fuel and airline hoses to nozzle assembly. 12. Replace fan (see Fan, page 8). 13. Replace fan guard and upper shell. NOZZLE (110/150,000 BTU/Hr Models) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove fan (see Fan, page 8). 3. Remove fuel and air line hoses from burner head. 4. Remove spark plug wire from spark plug. 5. Remove spark plug from burner head using 13/16" open-end wrench. Nozzle Assembly Figure 23 - Removing Nozzle Assembly, 35/55,000 BTU/Hr Models Burner Strap 6. Remove three screws using 5/16" nut-driver and remove burner head from combustion chamber. 7. Place burner head into vise and lightly tighten. 8. Carefully remove nozzle from burn-er head using 5/8" socket wrench (see Figure 26, page 12). 9. Blow compressed air through face of nozzle. This will free any dirt in nozzle area. 10. Inspect nozzle sleeve for damage. 11. Replace nozzle into burner head and tighten firmly (80-110 inch-pounds). 12. Attach burner head to combustion chamber. 13. Install spark plug in burner head. 14. Attach spark plug wire to spark plug. 15. Attach fuel and airline hoses to burner head. 16. Replace fan (see Fan, page 8). 17. Replace fan guard and upper shell. Nozzle Nozzle Face Nozzle Nozzle Adapter Air Line Sleeve Fitting Fuel Line Fitting Figure 24 - Nozzle and Nozzle Adapter, 35/55,000 BTU/Hr Models Continued 11 12 100507 PORTABLE SPACE HEATER Burner Head Spark Plug Cable Spark Plug Combustion Chamber Screw Fuel Line Hose Air Line Hose Figure 25 - Removing Burner Head, 110/ 150,000 BTU/Hr Models Burner Head Nozzle Nozzle Face Nozzle Sleeve Fuel Line Air Line Fitting Fitting Figure 26 - Removing Nozzle, 110/150,000 BTU/Hr Models PUMP ROTOR (Procedure if rotor is binding) 1. Remove upper shell (see Upper Shell Removal, page 8). 2. Remove filter end cover screws using 5/16" nut-driver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nut-driver. SERVICE PROCEDURES Continued 5. Remove pump plate. 6. Remove rotor, insert, and blades. 7. Check for debris in pump. If debris is found, blow out with compressed air. 8. Install insert and rotor. 9. Check gap on rotor. Adjust to .003"/.004" if needed (see Figure 29). Note: Rotate rotor one full turn to insure the gap is .003"/.004" at tightest position. Adjust if needed. 10. Install blades, pump plate, air filters, and filter end cover. 11. Replace fan guard and upper shell. 12. Adjust pump pressure (see page 10). Note: If rotor is still binding, proceed as follows. 13. Perform steps 1 through 6. 14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 30). 15. Reinstall insert and rotor. 16. Perform steps 10 through 12 above. 0 ROTOR PFA/P 056 Pump Plate Blade Air Intake Filter Filter End Cover Fan Guard Rotor Insert Air Output Filter Figure 27 - Rotor Location, 35/55,000 BTU/ Hr Models 0 ROTOR-Domestic PFA/P 059A Blade Pump Plate Air Intake Filter Filter End Cover Insert Rotor Air Output Filter Figure 28 - Rotor Location, 110/150,000 BTU/Hr Models Fan Guard Blade R...

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