Desa RM200T - Manual (Page 11)

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OWNER’S MANUAL
Figure 16 - Removing Nozzle
Figure 17 - Rotor Location
Sandpaper
Figure 19 - Sanding Rotor
Figure 18 - Gap Adjusting Screw
Locations
Nozzle Face
Nozzle Seal
Nozzle
Burner
Head
Fuel
Line
Fitting
Air Line
Fitting
SERVICE
PROCEDURES
Continued
PUMP ROTOR
(Procedure if Rotor is Binding)
1. Remove upper shell (see Upper Shell
Removal, 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 insure the
gap is .003"/.004" at tightest position. Ad-
just 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 Pump Pres-
sure Adjustment, 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 Fig-
ure 19).
15. Reinstall insert and rotor.
16. Perform steps 10 through 12 above.
Fan Guard
Filter End
Cover
Air
Intake
Filter
Pump
Plate
Blade
Air Output Filter
Rotor
Insert
Gap Adjusting Screw
Gap Adjusting
Screw
Blade
.003"/.004" Gap
Measured With
Feeler Gauge
Rotor