100743
12
Spark Plug
(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
assembly.
4. Remove spark plug wire
from spark plug.
5. Remove two screws using
5/16" nut-driver and
remove burner strap.
6. Place hex-body of spark
plug into vise and tighten.
7. Remove spark plug
mounting nut using 11/16"
open-end wrench.
8. Remove burner strap from
spark plug.
9. Clean and regap spark plug
electrodes to .055"
(1.4 mm) gap.
10. Replace burner strap onto
spark plug. Rotate burner
strap to position spark plug
electrodes (see Figure 17).
11. Tighten spark plug with
spark plug mounting nut.
12. Release hex-body of spark
plug from vise.
13. Replace burner strap onto
combustion chamber.
14. Attach spark plug wire to
spark plug.
15. Attach fuel and air line
hoses to nozzle assembly.
16. Replace fan (see page 19).
17. Replace fan guard and
upper shell.
Figure 17 - Spark Plug Rotation, 30,000 BTU/Hr Model Only
Bend Here
to Adjust
Gap
Figure 16 - Spark Plug Gap, 30,000 BTU/Hr Model
Figure 15 - Spark Plug Removal, 30,000 BTU/Hr Model
Combustion
Chamber
Burner
Strap
Nozzle
Assembly
Fuel Line
Hose
Air Line
Hose
Spark Plug
Mounting Nut
Spark
Plug
Spark Plug
Wire
.055" (1.4 mm) Gap
Burner
Strap
Burner
Strap
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