Desa BC55CT, BC115DT Service Procedures, Continued, Nozzle Assembly, and Proper Routing, page

Models: RC70ET RC165DT RC40 RC55CT RC115DT BC70ET UKC165DT UKC55CT UKC70ET UKC115DT BC165DT BC115DT BC55CT

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sembly. See Fuel and Air Line Replacement

SERVICE PROCEDURES

Continued

11. Attach fuel and airline hoses to nozzle as-

sembly. See Fuel and Air Line Replacement

and Proper Routing, page 14.

Combustion

Chamberand Proper Routing, page 14.

Nozzle

Adapter

Bracket

Air Line

Hose

Fuel

Line

Hose

Nozzle/

Adapter

Assembly

Photocell

Bracket

12.

Replace fan (see Fan, page 10).

13.

Replace fan guard and upper shell (see Upper

 

Shell Removal, page 10).

Combustion

 

Chamber

Nozzle/

 

 

Adapter

 

Assembly

Figure 24 - Removing Air and Fuel Line Hoses (115/165 Models Only)

NOZZLE ASSEMBLY

1.Remove upper shell (see Upper Shell Re- moval, page 10).

2.Remove fan (see Fan, page 10).

3.Remove fuel and air line hoses from nozzle as- sembly (see Figure 23, page 12 or Figure 24).

4.Turn nozzle assembly 1/4 turn to left and pull toward motor to remove (see Figure 25).

5.Place plastic hex-body into vise and lightly tighten.

6.Carefully remove nozzle from the nozzle adapter using 5/8" socket wrench (see Figure 26).

7.Blow compressed air through face of nozzle. This will free any dirt in nozzle area.

8.Inspect nozzle sleeve for damage.

9.Replace nozzle into nozzle adapter until nozzle seats. Tighten 1/3 turn more using 5/8" socket wrench 4.5 to 5.1 N-m (40 to 45 in-lbs). See Figure 26.

10.Attach nozzle assembly to burner strap (see Figure 25).

Figure 25 - Removing Nozzle/Adapter

Assembly

 

Nozzle Face

 

 

Nozzle Sleeve

 

Nozzle

 

 

Nozzle Adapter

 

 

Air Line

 

 

Fitting

Fuel Line

Fitting

 

Figure 26 - Nozzle and Nozzle Adapter

116170-01A

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Desa BC55CT Service Procedures, Continued, Nozzle Assembly, sembly. See Fuel and Air Line Replacement, Shell Removal, page