9
104975
OWNER’S MANUAL
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" 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 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 (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 7).
17. Replace fan guard and upper shell.
Figure 13 - Removing Burner Head
Figure 14 - Removing Nozzle
Nozzle Face
Nozzle
Burner
Head
Air line
Fitting
Fuel
line
Fitting
Nozzle
Seal
Spark
Plug
Combustion
Chamber
Burner
Head
Air
Line
Hose
Fuel Line
Hose
Screw
Spark
Plug
Wire
PUMP ROTOR
(Procedure if rotor is binding)
1.
Remove upper shell (see page 7).
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 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.
Figure 17 - Sanding Rotor
Figure 15 - Rotor Location
Pump
Plate
Insert
Rotor
Blade
Filter
End
Cover
Air
Intake
Filter
Air
Output
Filter
Fan Guard
Figure 16 - Gap Adjusting Screw
Locations
.076/.101 mm
(.003"/.004")
Gap
Measured With
Feeler Gauge
Gap Adjusting
Screw
Gap Adjusting
Screw
Rotor
Blade
Sandpaper
SERVICE
PROCEDURES
Continued
