108871
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For more information, visit www.desatech.com
For more information, visit www.desatech.com
SERVICE PROCEDURES
Figure 26 - Removing Air and Fuel Line Hoses (200 Model Only)
Fuel Line Hose
Nozzle/
Adapter
Assembly
Combustion
Chamber
Nozzle
Adapter
Bracket
Photocell
Bracket
Air Line
Hose
Nozzle Adapter
Bracket
Screw
Nozzle Face
Nozzle
Nozzle
Sleeve
Nozzle
Adapter
Bracket
Air Line
Fitting
Fuel Line Fitting
Figure 27 - Nozzle and Nozzle Adapter
(For 200 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 26).
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 27).
6. Blow compressed air through face of nozzle. This will re-
move 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.
Nozzle
Adapter
SERVICE PROCEDURES
Continued
FUEL AND AIR LINE REPLACEMENT AND
PROPER ROUTING
1. Remove upper shell (see Upper Shell Removal, page 8).
2. Remove side cover screws using 5/16" nut driver (see Figure 15
or 16, page 9 or Figure 17, page 10).
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 Fig-
ure 21, 22, or 23, page 12, or Figure 26) and from fuel filter
(see Fuel Filter, pages 9 and 10). If air line hose is damaged,
disconnect from nozzle adapter (see Figure 21, 22, or 23, page
12, or Figure 26) and from barb fitting on pump end cover (see
Figure 28).
5. Install new air and/or fuel line. Attach one end of air line hose to
barb fitting on pump end cover (see Figure 28) and the other
end to nozzle adapter (see Figure 21, 22, or 23, page 12, or
Figure 26). Attach one end of fuel line hose to fuel filter (see
Fuel Filter, pages 9 and 10) and the other end to nozzle adapter
(see Figure 21, 22, or 23, page 12, or Figure 26).
Note:
Route hoses as shown in see Figure 21, 22, or 23, page
12, or Figure 26, according to model. Hoses are not to touch
photocell bracket.
6. Replace side cover.
7. Replace upper shell and fan guard (see Upper Shell Removal,
page 8).
Figure 28 - Air Hose to Barb Fitting
Barb Fitting
Air Hose
Pump End Cover
Barb
Fitting
110/115/150/155/165/200
Models
40/55/60/70
Models
