valutazioni - 3, GPA: 4.3 ( )

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Allow motor to reach full speed. 4. Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications at right for correct pressure for each model. 5. Remove pressure gauge. Replace pressure gauge plug in filter end cover. (30/70,000 BTU/Hr Models Shown) Relief Valve Fan Guard (90,000 BTU/Hr Model Shown) Nozzle (30,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 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 thru face of nozzle. This will free any dirt in nozzle area. 8. Inspect nozzle seal for damage. 9. Replace nozzle into nozzle adapter until nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench (4.5-5.1 n-m). 10. Attach nozzle assembly to burner strap. 11. Attach fuel and air line hoses to nozzle assembly. 12. Replace fan (see page 19). 13. Replace fan guard and upper shell. Nozzle Assembly Air Line Hose Combustion Chamber Fuel Line Hose Figure 24 - Removing Air and Fuel Line Hoses, 30,000 BTU/Hr Model Nozzle Assembly Burner Strap Figure 25 - Removing Nozzle Assembly, 30,000 BTU/Hr Model Nozzle Nozzle Face Fuel line Fitting Nozzle Seal Nozzle Adapter Air lineFitting Figure 26 - Nozzle and Nozzle Adapter, 30,000 BTU/Hr Model 15 Nozzle (70/90,000 BTU/Hr Models) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 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. 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 burner head using 5/8" socket wrench (see Figure 28). 9. Blow compressed air thru face of nozzle. This will free any dirt in nozzle area. 10. Inspect nozzle seal for damage. 11. Replace nozzle into burner head and tighten firmly (9.1-12.4 n-m). 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 air line hoses to burner head. 16. Replace fan (see page 19). 17. Replace fan guard and upper shell. Combustion Chamber Burner Head Air Line Hose Fuel Line Hose Screw Spark Plug Wire Spark Plug Figure 27 - Removing Burner Head, 70/90,000 BTU/Hr Models Nozzle Face Fitting Nozzle Burner Head Air line Fuel line Fitting Nozzle Seal Figure 28 - Removing Nozzle, 70/90,000 BTU/Hr Models 16 Nozzle (150,000 BTU/Hr Model) 1. Remove upper shell (see page 10). 2. Remove fan (see page 19). 3. Remove spark plug wire from spark plug. 4. Remove spark plug from burner head using 13/16" open-end wrench. 5. Loosen flare nut using 3/4" open-end wrench. Push fuel tube down. 6. Remove air line hose from burner head. 7. Remove three screws using 5/16" nut-driver and remove burner head from combustion chamber. 8. Place burner head into vise and lightly tighten. 9. Carefully remove nozzle from burner head using 5/8" socket wrench (see Figure 30). 10. Blow compressed air thru face of nozzle. This will free any dirt in nozzle area. 11. Inspect nozzle seal for damage. 12. Replace nozzle into burner head and tighten firmly (9.1-12.4 n-m). 13. Attach burner head to combustion chamber. 14. Install spark plug in burner head. 15. Attach spark plug wire to spark plug. 16. Attach fuel tube and air line hose to burner head. Attach flare nut until nut seats against fuel tube and fitting. Tighten 1/4 turn more using 3/4" open-end wrench (11.3-14.7 n-m). 17. Replace fan (see page 19). 18. Replace fan guard and upper shell. Combustion Spark Plug Chamber Fuel Tube Flare Nut Burner Head Screw Spark Plug Wire Air Line Hose Figure 29 - Removing Burner Head, 150,000 BTU/Hr Model Nozzle Face Nozzle Burner Head Nozzle Seal Figure 30 - Removing Nozzle, 150,000 BTU/Hr Model 17 18 099800 Pump Rotor (Procedure if rotor is binding) 1. Remove upper shell (see page 10). 2. Remove filter end cover screws using 5/16" nutdriver. 3. Remove filter end cover and air filters. 4. Remove pump plate screws using 5/16" nutdriver. 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 .076/.101 mm if needed (see Figure 33). Note: Rotate rotor one full turn to insure the gap is .076/.101 mm 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 14). Note: If rotor is still binding, proceed as follows. 13. Perform steps 1 thru 6 above. 14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure...

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