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17
100743
Nozzle
(150,000 BTU/Hr Model)
1. Remove upper shell (see
page 10).
2. Remove fan (see page 19).
3. Remove spark plug wire
from spark plug.
4. Remove spark plug from
burner head using 13/16"
open-end wrench.
5. Loosen flare nut using
3/4" open-end wrench.
Push fuel tube down.
6. Remove air line hose from
burner head.
7. Remove three screws
using 5/16" nut-driver and
remove burner head from
combustion chamber.
8. Place burner head into vise
and lightly tighten.
9. Carefully remove nozzle
from burner head using
5/8" socket wrench (see
Figure 30).
10. Blow compressed air
through face of nozzle.
This will free any dirt in
nozzle area.
11. Inspect nozzle seal for
damage.
12. Replace nozzle into burner
head and tighten firmly
(80-110 inch-pounds/9.1-
12.4 n-m).
13. Attach burner head to
combustion chamber.
14. Install spark plug in burner
head.
15. Attach spark plug wire to
spark plug.
16. Attach fuel tube and airline
hose to burner head.
Attach flare nut until nut
seats against fuel tube and
fitting. Tighten 1/4 turn
more using 3/4" open-end
wrench (100-130 inch-
pounds/11.3-14.7 n-m).
17. Replace fan (see page 19).
18. Replace fan guard and
upper shell.
Figure 29 - Removing Burner Head, 150,000 BTU/Hr Model
Figure 30 - Removing Nozzle, 150,000 BTU/Hr Model
Nozzle
Face
Nozzle
Burner
Head
Nozzle
Seal
Spark
Plug
Combustion
Chamber
Fuel Tube
Flare Nut
Burner Head
Air Line Hose
Screw
Spark Plug
Wire