Pump Rotor
(Procedure if rotor is binding)
1.Remove upper shell (see page 10).
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" (.076/.101mm) if needed (see Figure 19).
Note: Rotate rotor one full turn to insure the gap is
Blade
Pump Plate
Air Intake Filter
Filter End Cover
Insert
Rotor
Air Output Filter
150 ROTOR | PFA/P 059 |
Fan Guard
(100,000 BTU/Hr
Model Shown)
Figure 18 - Rotor Location
Gap Adjusting
Screw
.003"/.004" (.076/.101mm) 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 |
Blade
.003"/.004" (.076/.101mm) Gap Measured With Feeler Gauge
Sandpaper
Rotor
page 13). |
Note: If rotor is still binding, proceed as follows.
13.Perform steps 1 thru 6 above.
14.Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” motion four times (see Figure 20).
15.Reinstall insert and rotor.
16.Perform steps 10 thru 12 above.
16
Gap Adjusting Screw
Figure 19 - Gap Adjusting |
|
Screw Locations | Figure 20 - Sanding Rotor |