Nozzle - Master B35CED Owner's Manual

SERVICE PROCEDURES
Continued

NOZZLE

(35,000 Btu/Hr Model)
1. Remove upper shell (see page 8).
2. Remove fan (see page 13).
3. Remove fuel and air line hoses from nozzle assembly.
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 thru 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 (4.5-5.1 n-m/40-45
inch-pounds).
10. Attach nozzle assembly to burner strap.
11. Attach fuel and airline hoses to nozzle assembly.
12. Replace fan (see page 13).
13. Replace fan guard and upper shell.
Combustion
Chamber
Air Line
Hose
Nozzle
Assembly
Fuel Line
Hose
Figure 20 - Removing Air
and Fuel Line Hoses, 35,000
Btu/Hr Model
Nozzle
Face
Nozzle
Nozzle
Adapter
Air line Fitting
Figure 22 - Nozzle and Nozzle Adapter, 35,000 Btu/Hr Model
4110.607
Burner
Strap
Nozzle Assembly
Figure 21 - Removing
Nozzle Assembly, 35,000
Btu/Hr Model
Nozzle
Seal
Fuel line
Fitting
SERVICE PROCEDURES
NOZZLE
(70/100/150,000 Btu/Hr Models)
1. Remove upper shell (see page 8).
2. Remove fan (see page 13).
3. Remove fuel and air line hoses from burner head.
4. Remove spark plug wire from spark plug.
5. Remove spark plug from burner head using 13/16" open-end
wrench.
6. Remove three screws using 5/16" nut-driver and remove burner
head from combustion chamber.
7. Place burner head into vise and lightly tighten.
8. Carefully remove nozzle from burner head using 5/8" socket
wrench (see Figure 24).
9. Blow compressed air thru face of nozzle. This will free any
dirt in nozzle area.
10. Inspect nozzle seal for damage.
11. Replace nozzle into burner head and tighten firmly (9.1-12.4
n-m/80-110 inch-pounds).
12. Attach burner head to combustion chamber.
Combustion
Chamber
Screw
Air Line
Hose
Figure 23 - Removing Burner Head, 70/100/150,000 Btu/Hr
Models
Nozzle
Face
Nozzle
Burner
Head
Figure 24 - Removing Nozzle, 70/100/150,000 Btu/Hr Models
11
11
Burner
Head
Spark Plug
Wire
Spark Plug
Fuel Line
Hose
Nozzle
Seal
Fuel line
Air line
Fitting
Fitting