Desa RJ70 Fuel Filter, IGNITOR RJ45, Service Procedures, Continued, Upper Shell Removal, page

OWNER’S MANUAL

SERVICE

PROCEDURES

Continued

FUEL FILTER

1.Remove side cover screws using 5/16" nut-driver (see Figure 9).

2.Remove side cover.

3.Pull upper fuel line off fuel filter neck.

4.Carefully pry bushing and fuel filter out of fuel tank.

5.Wash fuel filter with clean fuel and re- place in tank.

6.Attach upper fuel line to fuel filter neck.

7.Replace side cover (see Figure 9).

IGNITOR (RJ45)

1.	Remove upper shell and fan guard (see
	Upper Shell Removal, page 8).
2.	Remove fan (see Fan, page 8).
3.	Remove side cover screws with a 5/16"
	nut driver. Remove side cover (see Fig-
	ure 9).
4.	Disconnect ignitor wires from ignition
	control assembly (see Figure 10). Pull
	the ignitor wires up through the hole in
	the lower shell.
5.	Disconnect fuel line hose and air line
	hose. Remove photocell from photocell
	bracket (see Figure 10).
6.	Remove combustion chamber. Stand
	combustion chamber on end with nozzle
	adapter bracket on top (see Figure 11).

Combustion

Chamber

Air Line

Hose

Fuel

Line

Hose

Photocell

Bracket

Photocell

Assembly

Side Cover

Nozzle

Adapter

Bracket

Ignitor

Ignitor Wires (Gray)

Ignition

Control

Assembly

Fuel Filter

Side Cover Upper Fuel Line

Figure 9 - Fuel Filter Removal

7. Remove ignitor screw with a 1/4" nut

driver. Carefully remove ignitor from

nozzle adapter bracket.

CAUTION:Donotbendorstrike ignitor element. Handle with care.

8.	Carefully remove replacement ignitor
	from styrofoam packing.
9.	Carefully guide ignitor into opening in
	nozzle adapter bracket. Do not strike
	ignitor element. Attach ignitor to nozzle
	adapter bracket with screw using a 1/4"
	nut driver (see Figure 11). Torque 1800
	to 3500 grams/centimeters. Do not over
	torque.
10.	Replace combustion chamber.
11.	Route the ignitor wires back down
	through the hole in the lower shell.
	Connect wires to the ignition control

Figure 10 - Disconnecting Ignitor Wires from Ignition Control Assembly

	Ignitor
	Screw
	Ignitor
Ignitor	Nozzle
Photocell Element
	Adapter
Bracket	Bracket

assembly. See Wiring Diagrams, page

12, for correct terminal locations.

12. Replace side cover (see Figure 9).

Combustion Chamber

Nozzle Adapter Bracket Opening

13.	Connect and route fuel line hose and
	air line hose to nozzle assembly. See
	Fuel and Air Line Replacement and
	Proper Routing, page 10.
14.	Replace photocell in photocell bracket.
	Route wires between hoses and back
	down through the hole in the lower shell
	with ignitor wires (see Figure 10).
15.	Replace fan (see Fan, page 8).
16.	Replace fan guard and upper shell (see
	Upper Shell Removal, page 8).

Figure 11 - Ignitor Replacement

Continued

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