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Models 2E510F, 2E511F, 3E218F, and 3E219F
Dayton Operating Instructions and Parts Manual
111166-01A
®
Maintenance (Continued)
NOZZLE
1. Remove upper shell (See page 6).
2. Remove fan (See page 6).
3. Remove fuel and air line hoses
from nozzle assembly (See Figure
18 or 19).
4. Turn nozzle assembly 1/4 turn to
left and pull toward motor to
remove (See Figure 20).
5. Place plastic hex-body into vise and
lightly tighten.
6. Carefully remove nozzle from the
nozzle adapter using 5/8" socket
wrench.
7. Blow compressed air through face
of nozzle. This will free any dirt in
nozzle area.
8. Inspect nozzle sleeve for damage.
9. Replace nozzle into nozzle adapter
until nozzle seats. Tighten 1/3 turn
more using 5/8" socket wrench (40-
45 inch-pounds).
10. Attach nozzle assembly to burner
strap.
11. Attach fuel and airline hoses to
nozzle adapter assembly (see Fuel
and Air Line Replacement and
Proper Routing).
12. Replace fan (See page 6).
13. Replace fan guard and upper shell.
Nozzle
Assembly
Burner Strap
Air Line
Fitting
Fuel Line
Fitting
Nozzle
Nozzle
Sleeve
Nozzle Face
Figure 21 - Nozzle and Nozzle Adapter,
All Models
Nozzle Adapter
Figure 20 - Removing Nozzle Assembly,
All Models
FUEL AND AIR LINE REPLACEMENT
AND PROPER ROUTING
1. Remove upper shell (See page 6).
2. Remove side cover screws using
5/16" nut driver.
3. Remove side cover.
4. Inspect fuel and air line hoses for
cracks and/or holes. If fuel line hose
is damaged, disconnect from nozzle
adapter (See Figure 18 or 19) and
from fuel filter (See page 7). If air
line hose is damaged, disconnect
from nozzle adapter (See Figure 18
or 19) and from barb fitting on
pump end cover (See Figure 22).
Barb Fitting
Air Hose
Pump End Cover
Barb
Fitting
110/155,000
Btu/Hr Model
40/60,000 Btu/Hr
Models
Figure 22 - Air Hose to Barb Fitting
5. Install new air and/or fuel line.
Attach one end of air line hose to
barb fitting on pump end cover
(See Figure 22) and the other end
to nozzle adapter (See Figure 18 or
19). Attach one end of fuel line
hose to fuel filter (See page 7) and
the other end to nozzle adapter
(See Figure 18 or 19).
NOTE: Route hoses as shown in
Figure 18 or 19 according to
Model. Hoses are not to touch
photocell bracket.
6. Replace side cover.
7. Replace upper shell and fan guard
(See page 6).