Spark Plug; Nozzle - Desa BY150ECA Owner's Manual

Spark Plug

1. Remove upper shell (see page 10).
2. Remove fan (see page 10).
3. Remove spark plug wire from spark
plug.
4. Remove spark plug from burner head
using 13/16" open-end wrench.
5. Clean and regap spark plug elec-
trodes to .075" gap.
6. Install spark plug in burner head.
7. Attach spark plug wire to spark plug.
8. Replace fan (see page 10).
9. Replace fan guard and upper shell.

Nozzle

1. Remove upper shell (see page 10).
2. Remove fan (see page 10).
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 14).
9. Blow compressed air through 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.
13.Install spark plug in burner head.
14.Attach spark plug wire to spark
plug.
15.Attach fuel and airline hoses to
burner head.
16.Replace fan (see page 10).
17.Replace fan guard and upper shell.
12
Burner Head
Figure 12 - Spark Plug Removal
Figure 13 - Spark Plug Gap
Combustion
Chamber
Screw
Air Line Hose
Figure 14 - Removing Burner Head
Nozzle
Face
Nozzle
Burner
Head
Figure 15- Removing Nozzle
Spark
Plug
Bend Here
to Adjust
Gap
Gap
Burner Head
Spark
Plug
Fuel Line Hose
Nozzle Seal
Air Line
Fitting
Spark Plug Wire
Spark Plug Wire
Fuel Line
Fitting
102424