Desa GK30, GK20 owner manual Nozzle Assembly, Service Procedures, Continued

SERVICE PROCEDURES

11

SERVICE PROCEDURES

Continued

NOZZLE ASSEMBLY

1.	Remove upper shell (see page 8).
2.	Remove fan (see page 13).
3.	Remove fuel and air line hoses from nozzle assembly (see Fig-
	ure 17 or 18).
4.	Turn nozzle assembly 1/4 turn to left and pull toward motor to
	remove (see Figure 19).
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 20).
7.	Blow compressed air through face of nozzle. This will free
	any dirt in nozzle area.

Combustion

Chamber

Nozzle Adapter

Bracket

Air Line Hose

Photocell Bracket

Nozzle/

Adapter

Assembly

Fuel Line Hose

8.	Inspect nozzle seal 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 20.
10.	Attach nozzle assembly to burner strap.
11.	Attach fuel and airline hoses to nozzle assembly. See Fuel and
	Airline Replacement and Proper Routing, page 12.
12.	Replace fan (see page 13).
13.	Replace fan guard and upper shell (see page 8).

Figure 18 - Removing Air and Fuel Line Hoses (Model GK30 Only)

Combustion	Nozzle/Adapter
Chamber
	Assembly

Figure 19 - Removing Nozzle/Adapter Assembly

Combustion

Chamber

Nozzle

Adapter

Bracket

Photocell Bracket

Air Line

Hose

Nozzle/Adapter

Assembly

Fuel Line Hose

Nozzle
Face	Nozzle Seal

Nozzle

Nozzle Adapter

Air Line
Fitting	Fuel Line
	Fitting

Figure 20 - Nozzle and Nozzle Adapter

Figure 17 - Removing Air and Fuel Line Hoses (Model GK20 Only)

108954