Pump Rotor
(Procedure if rotor is binding)
1.Remove upper shell (see page 9).
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
.003"/.004" if needed (see Figure 17).
Note: Rotate rotor one full turn to insure 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 10).
Note: If rotor is still binding, pro- ceed as follows.
13.Perform steps 1 through 6 (see above).
14.Place fine grade sandpaper (600 grit) on flat surface. Sand rotor lightly in “figure 8” mo- tion four times (see Figure 18).
15.Reinstall insert and rotor.
16.Perform steps 10 through 12 above.
WIRING
DIAGRAM
Blade
Pump Plate
Air Intake Filter
Filter End Cover
Insert
Rotor
Air Output Filter
50 ROTOR | PFA/P 056 |
Fan Guard
Figure 16 - Rotor Location
Gap Adjusting Screw
.003"/.004" Gap
Measured With
Feeler Gauge
Blade
Rotor
Gap Adjusting Screw
Figure 17 - Gap Adjusting Screw Locations
Sandpaper
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| Figure 18 - Sanding Rotor |
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| Power Plug |
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| 120V/60Hz |
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| White |
| Black |
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| Green |
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| White |
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| White | B |
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| White |
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| Flame- |
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Green |
| Green/ | Terminal | White | Blue Blue |
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Ignitor | Out |
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Motor | Yellow | Board |
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| Control | Reset | |
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| Photocell | ||||
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| Spark Plug |
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| Button | |
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| R | ||
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| Red |
| Red |
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| Red |
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Figure 19 - Wiring Diagram | 11 |
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