valutazioni - 3, GPA: 3.3 ( )

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Remove upper shell (see page 8). 2. Remove filter end cover screws using 5/16" nut-driver. 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 6). 6. Replace filter end cover. 7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters Pump Pressure Adjustment 1. Remove pressure gauge plug from filter end cover. 2. Install accessory pressure gauge (part number HA1180). 3. Start heater (see Operation, page 5). 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. Air Intake Filter Lint Filter Filter End Cover Air Output Filter Fan Guard Figure 16 - Air Output, Air Intake, and Lint Filters, 35/70,000 Btu/Hr Models Air Intake Filter Filter End Cover Lint Filter Air Output Filter Figure 17 - Air Output, Air Intake, and Lint Filters, 100/150,000 Btu/Hr Models Figure 18 - Pressure Gauge Plug Removal Pressure Gauge Plug Pressure Gauge Model Pump Pressure (PSI/Bar) 35,000 Btu/Hr 2.9/0.20 70,000 Btu/Hr 3.8/0.26 100,000 Btu/Hr 3.9/0.27 150,000 Btu/Hr 4.8/0.33 (35/70,000 Btu/Hr Models Shown) Relief Valve Fan Guard SERVICE PROCEDURES Continued Figure 19 - Adjusting Pump Pressure OWNER’S MANUAL SERVICE PROCEDURES Continued Nozzle (35,000 Btu/Hr Model) 1. Remove upper shell (see page 8). 2. Remove fan (see page 13). 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/ 40-45 inch-pounds). 10. Attach nozzle assembly to burner strap. 11. Attach fuel and airline hoses to nozzle assembly. 12. Replace fan (see page 13). 13. Replace fan guard and upper shell. Combustion Chamber Fuel Line HoseAir Line Hose Figure 20 - Removing Air and Fuel Line Hoses, 35,000 Btu/Hr Model Nozzle Assembly Nozzle Assembly Burner Strap Figure 21 - Removing Nozzle Assembly, 35,000 Btu/Hr Model Nozzle Face Air line Fitting Fuel line Fitting Nozzle Nozzle Seal Nozzle Adapter Figure 22 - Nozzle and Nozzle Adapter, 35,000 Btu/Hr Model Nozzle (70/100/150,000 Btu/Hr Models) 1. Remove upper shell (see page 8). 2. Remove fan (see page 13). 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 24). 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/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 page 13). 17. Replace fan guard and upper shell. Spark Plug Combustion Chamber Burner Head Air Line Hose Fuel Line Hose Screw Spark Plug Wire Figure 23 - Removing Burner Head, 70/100/150,000 Btu/Hr Models Nozzle Face Nozzle Burner Head Air line Fitting Fuel line Fitting Nozzle Seal Figure 24 - Removing Nozzle, 70/100/ 150,000 Btu/Hr Models Continued 11 12 104468 PORTABLE FORCED AIR HEATERS R Pump Rotor (Procedure if rotor is binding) 1. Remove upper shell (see 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. 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 (.003"/.004") if needed (see Figure 27). Note: Rotate rotor one full turn to insure the gap is .076/.101 mm (.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 above. 14. Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 28). 15. Reinstall insert and rotor. 16. Perform steps 10 through 12 above. Figure 25 - Rotor Location, 35/70,000 Btu/Hr M...

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