Assessments - 3, GPA: 3.3
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If fan is hard to turn, see Pump Rotor, page 14. 9 SERVICE PROCEDURES Upper Shell Removal 1. Remove screws along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. 2. Lift upper shell off. 3. Remove fan guard. Fuel Filter (REMJ70) 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull rubber fuel line off fuel filter neck. 4. Carefully pry bushing and fuel filter out of fuel tank. 5. Wash fuel filter with clean fuel and replace in tank. 6. Attach rubber fuel line to fuel filter neck. 7. Replace side cover. WARNING Never service heater while it is plugged in, operating, or hot. Severe burns and electrical shock can occur. Shell Upper Figure 7 - Upper Shell Removal (REMJ70) Side Cover Fan Guard Upper Shell Fuel Line Fuel Filter Figure 8 - Upper Shell Removal (REMJ150) Figure 9 - Fuel Filter Removal (REMJ70) 10 Fuel Filter 1. Remove side cover screws using 5/16" nut-driver. 2. Remove side cover. 3. Pull upper fuel line off fuel filter neck. 4. Carefully pry bushing, lower fuel line, and fuel filter out of fuel tank. 5. Wash fuel filter with clean fuel and replace in tank. 6. Attach upper fuel line to fuel filter neck. 7. Replace side cover. Spark Plug 1. Remove upper shell (see page 10). 2. Remove fan (see page 15). 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 as follows: REMJ70: .085" (2.2 mm) gap, REMJ150: .085" (2.2 mm) gap. 6. Install spark plug in burner head. 7. Attach spark plug wire to spark plug. 8. Replace fan (see page 15). 9. Replace fan guard and upper shell. Side Cover Fuel Filter, Bushing, and Lower Fuel Line Upper Fuel Line Figure 10 - Fuel Filter Removal (REMJ150) Spark Plug Wire and Rubber Cap Burner Head Spark Plug SPARK PLUG REMOVAL 70, 100 &150 Figure 11 - Spark Plug Removal PFA/P 031A Bend Here to Adjust Gap Gap Figure 12 - Spark Plug Gap 11 12 102961 Air Output, Air Intake, and Lint Filters 1. Remove upper shell (see page 10). 2. Remove filter end cover screws using 5/16" nutdriver. 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 8). 6. Replace filter end cover. 7. Replace fan guard and upper shell. IMPORTANT: Do not oil filters. Figure 13 - Air Output, Air Intake, and Lint Filters (REMJ70) Air Intake Filter Filter End Cover Lint Filter Air Output Filter Figure 14 - Air Output, Air Intake, and Lint Filters (REMJ150) Figure 15 - Pressure Gauge Plug Removal Figure 16 - Adjusting Pump Pressure Pump Model Pressure (PSI - kg/cm2) REMJ70 5.0 - .35 @ 50Hz 5.4 - .38 @ 60Hz REMJ150 5.0 - .35 @ 50Hz 5.3 - .37 @ 60Hz 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 7). 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. Fan Guard Air Intake Filter Lint Filter Filter End Cover Air Output Filter Pressure Gauge Relief Valve Pressure Gauge Plug Fan Guard Nozzle 1. Remove upper shell (see page 10). 2. Remove fan (see page 15). 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 18). 9. Blow compressed air through 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 (80-110 inch-pounds/9.112.4 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 airline hoses to burner head. 16. Replace fan (see page 15). 17. Replace fan guard and upper shell. Combustion Spark Plug Chamber Burner Head Air Line Hose Fuel Line Hose Screw Spark Plug Wire and Rubber Cup Figure 17 - Removing Burner Head Nozzle Face Fitting Nozzle Burner Head Air line Fuel line Fitting Nozzle Seal Figure 18 - Removing Nozzle 13 14 102961 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 .003"/.004" (.076/.101 mm) if...
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