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106068
OWNER’S MANUAL
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
.003"/.004" if needed (see Figure 18).
Note:
Rotate rotor one full turn to in-
sure the gap is .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 9).
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 Fig-
ure 19).
15. Reinstall insert and rotor.
16. Perform steps 10 through 12 above.
Figure 16 - Removing Nozzle
Nozzle
Face
Nozzle Seal
Nozzle
Burner
Head
Fuel Line
Fitting
Air Line
Fitting
Fan Guard
Filter End Cover
Air Intake Filter
Pump Plate
Blade
Air Output Filter
Rotor
Insert
Figure 17 - Rotor Location
Sandpaper
Figure 19 - Sanding Rotor
Figure 18 - Gap Adjusting Screw Locations
Gap Adjusting Screw
Gap Adjusting Screw
.003"/.004" Gap
Measured With
Feeler Gauge
Rotor
Blade
SERVICE
PROCEDURES
Continued