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Pump Rotor
(Procedure if rotor is binding)
1. Remove upper shell (see page
9).
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 17).
Rotate rotor one full turn
Note:
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).
If rotor is still binding, pro-
Note:
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
102437
Insert
Rotor
Air Output Filter
50 ROTOR
Figure 16 - Rotor Location
Gap Adjusting Screw
Blade
Figure 17 - Gap Adjusting Screw Locations
Sandpaper
Figure 18 - Sanding Rotor
White
White
Green
Green/
Ignitor
Motor
Yellow
Spark Plug
Red
Red
Figure 19 - Wiring Diagram
Blade
Pump Plate
Air Intake Filter
Filter End Cover
PFA/P 056
.003"/.004" Gap
Measured With
Feeler Gauge
Rotor
Gap Adjusting Screw
Power Plug
120V/60Hz
White
Black
Green
White
White
Blue
Terminal
Board
Photocell
Red
Fan Guard
B
Flame-
Blue
Out
Control
Reset
Button
R
11
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