Spark Plug

(35 Model)

1.Remove upper shell (see page 12).

2.Remove fan (see page 12).

3.Remove fuel and air line hoses from nozzle assembly.

4.Remove spark plug cable from spark plug.

5.Remove two (2) 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 as shown in Figure 19.

11.Tighten spark plug with spark plug mounting nut.

12.Release hex-body of spark plug from vise.

13.Replace burner strap onto combus- tion chamber.

14.Attach spark plug cable to spark plug.

15.Attach fuel and air line hoses to nozzle assembly.

16.Replace fan (see page 12).

17.Replace fan guard and upper shell.

Combustion

Spark Plug

 

 

Mounting Nut

 

 

Chamber

Burner

Spark

 

 

Strap

Spark Plug

 

Plug

 

 

 

 

 

Cable

 

Nozzle Assembly

Air Line

Fuel Line Hose

Hose

 

Figure 17- Spark Plug Removal, 35 Model

Bend Here to Adjust Gap

.055" (1.4 mm) Gap

Figure 18 - Spark Plug Gap, 35 Model

Burner

45° Strap

Figure 19 - Spark Plug Rotation, 35 Model Only

Spark Plug

(100/150 Models)

1.

Remove upper shell (see page 12).

2.

Remove fan (see page 12).

3.

Remove spark plug cable from

 

spark plug.

Burner Head

Spark Plug Cable

4.

Remove spark plug from burner

 

head using 13/16" open-end

 

wrench.

5.

Clean and regap spark plug elec-

 

trodes as follows:

 

100 Model = .055" (1.4 mm)

 

gap

 

150 Model = .075" (1.9 mm) gap

6.

Install spark plug in burner head.

7.

Attach spark plug cable to spark

 

plug.

8.

Replace fan (see page 12).

9.

Replace fan guard and upper shell.

14

Spark

Plug

Figure 20 - Spark Plug Removal, 100/150 Models

Bend Here to Adjust Gap

Gap

Figure 21 - Spark Plug Gap, 100/150 Models

100577

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Homelite HHC150A, HHC35A, HHC100A owner manual Spark Plug Removal, 35 Model