Master Lock B150, B30, B70, B100 owner manual Nozzle

Nozzle

(30,000 BTU/Hr Model)

1.Remove upper shell (see page 10).

2.Remove fan (see page 19).

3.Remove fuel and air line hoses from nozzle assem- bly.

4.Turn nozzle assembly 1/4 turn to left and pull toward motor to remove.

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 seal 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/4.5- 5.1 n-m).

10.Attach nozzle assembly to burner strap.

11.Attach fuel and airline hoses to nozzle assembly.

12.Replace fan (see page 19).

13.Replace fan guard and upper shell.

Combustion

Chamber

Nozzle

Assembly

Fuel Line Hose

Air Line Hose

Figure 24 - Removing Air and Fuel Line Hoses, 30,000 BTU/Hr Model

Burner

Strap

Nozzle

Assembly

Figure 25 - Removing Nozzle Assembly, 30,000 BTU/Hr Model

Nozzle	Nozzle
Face	Seal

Nozzle

Nozzle

Adapter

Air line	Fuel line
Fitting	Fitting

Figure 26 - Nozzle and Nozzle Adapter, 30,000 BTU/Hr Model

100743

15