Desa 10BY150ECB owner manual Fuel Filter, Spark Plug, Nozzle, MODEL BY150ECB 150,000 Btu/Hr

MODEL BY150ECB 150,000 Btu/Hr

PORTABLE FORCED AIR HEATER

FUEL FILTER

1.Remove side cover screws using 5/16" nut-driver.

2.Remove side cover.

3.Pull upper fuel line off fuel filter neck.

4.Carefully pry bushing, fuel filter, and lower fuel line out of fuel tank.

5.Wash fuel filter with clean fuel and replace in tank.

6.Attach upper fuel line to fuel filter neck.

7.Replace side cover.

Fuel Filter,

Bushing, and

Lower Fuel

Line

Upper

Fuel

Line

Side

Cover

Figure 10 - Fuel Filter Removal

SPARK PLUG

1.	Remove upper shell (see page 7).
2.	Remove fan (see page 7).
3.	Remove spark plug wire from spark
	plug.
4.	Remove spark plug and wave spring

Burner	Wave Spring Washer
Head	Spark Plug Wire

Spark

Plug

Figure 11 - Spark Plug Removal

Bend

Here to

Adjust

Gap

.110” Gap (2.8 mm)

Figure 12 - Spark Plug Gap

Side Electrode

270° Acceptable Range for Side Electrode

Figure 13 - Acceptable Range For Side Electrode

NOZZLE

1.	Remove upper shell (see page 7).
2.	Remove fan (see page 7).
3.	Remove fuel and air line hoses from
	burner head.
4.	Remove spark plug wire from spark

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 and wave spring washer in burner head. Torque 40 to 60 inch-pounds. Adjust (if necessary) to bring side electrode into the acceptable range (see figure 14).

14.Attach spark plug wire to spark plug.

15.Attach fuel and airline hoses to burner head.

16.Replace fan (see page 7).

17.Replace fan guard and upper shell.

Wave

CombustionSpring

ChamberBurner Washer

Head

Spark Plug

Wire

Screw	Spark
	Plug

Fuel Line

Hose

Air Line

Hose

Figure 14 - Removing Burner Head

Nozzle

	washer from burner head using 13/16"
	open-end wrench.
5.	Clean and regap spark plug electrodes
	to .110" (2.8 mm) gap.
6.	Install spark plug and wave spring
	washer in burner head. Torque 40 to
	60 inch-pounds. Adjust (if necessary)

	plug.
5.	Remove spark plug and wave spring
	washer 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.

Face

Nozzle

Nozzle Seal

	to bring side electrode into the accept-
	able range (see figure 13).
7.	Attach spark plug wire to spark plug.
8.	Replace fan (see page 7).
9.	Replace fan guard and upper shell.

7.	Place burner head into vise and lightly
	tighten.
8.	Carefully remove nozzle from burner
	head using 5/8" socket wrench (see
	Figure 15).

Burner
Head	Air	Fuel
		Line
	Line
		Fitting
	Fitting

Figure 15 - Removing Nozzle

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