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118419-01E
19
Figure 29 - Air Hose to Barb Fitting
Air Hose
Pump
End
Cover
Barb
Fitting
FUEL AND AIR LINE REPLACEMENT
AND PROPER ROUTING
1. Open upper shroud (see
Shroud and Up-
per Shell
, page 14).
2. Inspect fuel and air line hoses for cracks
and/or holes. If fuel line hose is damaged,
disconnect from nozzle adapter (see Fig-
ure 24, page 17 or Figure 27) and from
fuel filter (see
Fuel Filter
, page 16). If air
line hose is damaged, disconnect from
nozzle adapter (see Figure 24, page 17 or
Figure 27, page 18) and from barb fitting
on pump end cover (see Figure 29).
3. Install new air and/or fuel line. Attach one
end of air line hose to barb fitting on pump
end cover (see Figure 29) and the other
end to nozzle adapter (see Figure 24,
page 17 or Figure 27, page 18). Attach
one end of fuel line hose to fuel filter (see
SerViCe ProCedureS
Continued
Pump
Plate
Insert
Rotor
Blade
Filter
End
Cover
Air Intake
Filter
Air Output
Filter
PUMP ROTOR
(Procedure if Rotor is Binding)
1. Remove filter end cover screws using
5/16" nut driver (see Figure 31).
2. Remove filter end cover and air filters.
3. Remove pump plate screws using 5/16"
nut driver.
4. Remove pump plate.
5. Remove rotor, insert, and blades (see
Figure 31).
6. Check for debris in pump. If debris is
found, blow out with compressed air.
7. Install insert and rotor.
8. Check gap on rotor. Adjust to 0.076/
0.101 mm (0.003"/0.004") if needed (see
Figure 32, page 20).
Note: Rotate rotor one full turn to ensure
the gap is 0.076/0.101 mm (0.003"/0.004")
at tightest position. Adjust if needed.
Figure 31 - Rotor Location
9. Install blades, pump plate, air filters, and
filter end cover.
Note: Be sure to install parts back in
original orientation.
Figure 30 - Routing Air and Fuel Lines
Fuel Line (do not allow fuel
line to droop and trap fuel)
Air Line Under Fuel Line
100 & 150 Models
200 Models
Fuel Line (do not allow fuel
line to droop and trap fuel)
Air Line
Fuel Filter
, page 17) and the other end to
nozzle adapter (see Figure 24, page 17
or Figure 27, page 18).
Note: Route hoses as shown in Figure
30. Hoses are not to touch photocell
bracket.
4. Replace upper shell, upper shroud and
handle crossbar..
