112865-01A
11
For more information, visit www.desatech.co
For more information, visit www.desatech.com
SERVICE PROCEDURES
Continued
NOZZLE ASSEMBLY
1.
Remove upper shell (see Upper Shell Removal, page 8).
2.
Remove fan (see Fan, page 8).
3.
Remove fuel and air line hoses from nozzle assembly (see
Figure 14).
4.
Turn nozzle assembly 1/4 turn to left and pull toward motor to
remove (see Figure 15).
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 16).
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 to 45 in-lbs (4.5 to
5.1 N-m). See Figure 16.
10. Attach nozzle assembly to nozzle adapter bracket (see Figure 15).
11. Attach fuel and airline hoses to nozzle assembly. See Fuel and
Airline Replacement and Proper Routing.
12. Replace fan (see Fan, page 8).
13. Replace upper shell (see Upper Shell Removal, page 8).
Figure 14 - Removing Air and Fuel Line Hoses
Fuel Line Hose
Nozzle/
Adapter
Assembly
Combustion
Chamber
Photocell
Bracket
Air Line
Hose
Nozzle
Adapter
Bracket
Figure 15 - Removing Nozzle/Adapter Assembly
Nozzle/Adapter
Assembly
Combustion
Chamber
Figure 16 - Nozzle and Nozzle Adapter
Nozzle
Face
Nozzle
Nozzle Sleeve
Nozzle Adapter
Air Line Fitting
Fuel Line
Fitting
SERVICE PROCEDURES
FUEL AND AIR LINE REPLACEMENT AND
PROPER ROUTING
1.
Remove upper shell (see Upper Shell Removal, page 8).
2.
Remove control cover screws using phillips screwdriver (see
Figure 11, page 9).
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 Fig-
ure 14) and from fuel filter (see Fuel Filter, page 9). If air line
hose is damaged, disconnect from nozzle adapter (see Figure 14)
and from barb fitting on pump end cover (see Figure 17).
5.
Install new air and/or fuel line. Attach one end of air line hose
to barb fitting on pump end cover (see Figure 17) and the other
end to nozzle adapter (see Figure 14). Attach one end of fuel
line hose to fuel filter (see Fuel Filter, page 9) and the other
end to nozzle adapter (see Figure 14).
Note:
Route hoses as shown in Figure 14. Hoses are not to touch
photocell bracket.
6.
Replace control cover.
7.
Replace upper shell (see Upper Shell Removal, page 8).
Figure 17 - Air Hose to Barb Fitting
Barb Fitting
Pump End
Cover
Air Hose
