OWNER’S MANUAL
SERVICE
PROCEDURES
Continued
NOZZLE
1.Remove upper shell (see page 7).
2.Remove fan (see page 7).
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"
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 14).
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
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 7).
17.Replace fan guard and upper shell.
Combustion | Burner | |
Chamber | ||
Head Spark | ||
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| Plug | |
| Wire | |
Screw |
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| Spark | |
| Plug | |
Air | Fuel Line | |
Line | ||
Hose | ||
Hose | ||
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Figure 13 - Removing Burner Head
Nozzle Face
Nozzle
Seal
Nozzle
Burner
HeadFuel
Air line line
Fitting Fitting
Figure 14 - Removing Nozzle
PUMP ROTOR
(Procedure if rotor is binding)
1.Remove upper shell (see page 7).
2.Remove filter end cover screws using 5/16"
3.Remove filter end cover and air filters.
4.Remove pump plate screws using 5/16"
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 Fig- ure 16).
Note: Rotate rotor one full turn to in- sure 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 8).
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 17).
15.Reinstall insert and rotor.
16.Perform steps 10 through 12 above.
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| Air |
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| Blade | Intake |
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| Pump | Filter |
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| Plate | Filter |
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| End |
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| Cover |
Insert | Rotor |
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| Air |
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| Output |
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| Filter |
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| Fan Guard | |
Figure 15 - Rotor Location |
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| .076/.101 mm | |
Gap Adjusting | (.003"/.004") | ||
Gap |
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Screw |
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| Measured With | ||
Blade |
| Feeler Gauge | |
Rotor
Gap Adjusting
Screw
Figure 16 - Gap Adjusting Screw Locations
Sandpaper
Figure 17 - Sanding Rotor
104975 | 9 |