Maintenance, Fuel Filters, Upper Shell Removal

Dayton Operating Instructions and Parts Manual

Models 3E358B and 3E359B

Maintenance

Air Deflector

Fan Blade

Never service heater while it is

plugged in, operating, or hot. Severe burns and electrical shock can occur.

FUEL FILTERS

TANK FUEL FILTER

1. Disconnect fuel lines from pump and

fuel filter canister, if equipped, with

7/16" wrench (See Figure 12).

2. Carefully pry fuel filter loose from

UPPER SHELL REMOVAL

1.Remove screws along each side and top of heater using 5/16" nut-driver. These screws attach upper and lower shells together (See Figure 8).

2.Lift upper shell off.

Upper Shell

Figure 8 - Upper Shell Removal, Model 3E359B

FAN BLADES AND AIR DEFLECTORS

1.Remove upper shell (See Figure 8).

2.Clean fan blades and air deflectors with clean, soft cloth moistened with Kerosene or solvent (See Figure 9).

3.Dry fan blades and air deflectors thoroughly.

4.Replace upper shell.

Figure 9 - Fan Blades and Air Deflectors

SPARK PLUG

1.Remove upper shell (See Figure 8).

2.Remove spark plug wire from spark plug (See Figure 10).

3.Remove spark plug from burner head using 13/16" open-end wrench (See Figure 10).

4.Replace spark plug if damaged or heavily coated with carbon.

5.Clean and regap spark plug elec- trodes to .075 inch (See Figure 11).

6.Install spark plug in burner head.

7.Attach spark plug wire to spark plug.

8.Replace upper shell.

Burner Head

Spark Plug

Wire

Figure 10 - Spark Plug Removal

.075 inch

fuel tank with flat end of screw-

driver.

3. Inspect fuel filter for water or dirt.

4. Rinse fuel filter and fuel lines with

clean Kerosene.

5. Replace fuel filter into fuel tank.

6. Connect fuel lines to pump and fuel

filter canister, if equipped.

Fuel Pump	Fuel L	i	nes
(Filter Under
Cover)

Fuel

Filter

Dayton 3E358B Maintenance, Fuel Filters, Upper Shell Removal, FAN Blades and AIR Deflectors