Desa 125T Serie Manual De Propietario página 13

SerViCe ProCedureS
Continued
5. Place plastic hex-body into vise and lightly
tighten.
6. Carefully remove nozzle from the nozzle adapter
using 5/8" socket wrench (see Figure 19).
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 4.5 to 5.1 N-m (40 to 45 in-lbs).
See Figure 19).
10. Attach nozzle assembly to nozzle adapter
bracket (see Figure 18, page 12).
11. Attach fuel and airline hoses to nozzle as-
sembly. See Fuel and Airline Replacement
and Proper Routing.
12. Replace fan (see Fan, page 10).
13. Replace upper shell (see Upper Shell Removal,
page 10).
Nozzle Face
Nozzle
Air Line Fitting
Fuel Line Fitting
Figure 19 - Nozzle and Nozzle Adapter
200T Model Only
1. Remove combustion chamber and ignitor by
following steps 1 through 7 under Ignitor,
page 11.
2. Carefully place the ignitor in a safe location.
3. Remove two nozzle adapter bracket screws
(see Figure 20).
4. Place hex-shaped aluminum nozzle adapter
into vise (do not overtighten).
5. Carefully remove nozzle from nozzle adapter
using 5/8" socket wrench (see Figure 21).
6. Blow compressed air through face of nozzle.
This will remove any debris in nozzle.
7. Inspect nozzle seal for damage.
8. Replace nozzle into nozzle adapter until
nozzle seats. Tighten 80-110 inch-pounds.
9. Attach nozzle adapter bracket to combustion
chamber with two screws removed in step 3.
10. Repeat steps 9 through 16 under Ignitor,
page 11.
118637-01B
Nozzle Sleeve
Nozzle
Adapter
www.desatech.com
Combustion
Chamber
Nozzle
Adapter
Bracket
Photocell
Bracket
Air Line
Hose
Figure 20 - Replacing Air and Fuel Line
Hoses (200T Model Only)
Nozzle Face
Nozzle
Nozzle
Adapter
Bracket
Air Line
Fitting
Figure 21 - Nozzle and Nozzle Adapter
FUEL AND AIR LINE REPLACEMENT
AND PROPER ROUTING
1. Remove upper shell (see Upper Shell Re-
moval, page 10).
2. Remove control cover screws using phillips
screwdriver (see Figure 13, page 11).
3. Remove control 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 17, page 12 or
Figure 20 according to model) and from fuel
filter (see Fuel Filter, page 11). If air line hose
is damaged, disconnect from nozzle adapter
(see Figure 17, page 12 or Figure 20 according
to model and from barb fitting on pump end
cover (see Figure 22, page 14).
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, page 14) and the other
end to nozzle adapter (see Figure 17, page 12
or Figure 20 according to model). Attach one
end of fuel line hose to fuel filter (see Fuel
Filter, page 11) and the other end to nozzle
adapter (see Figure 17, page 12 or Figure 20
according to model).
Nozzle/
Adapter
Assembly
Fuel Line Hose
Nozzle
Nozzle
Sleeve
Adapter
Fuel Line
Fitting
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