Pump Pressure

Adjustment

1.Remove pressure gauge plug from filter end cover.

2.Install accessory pressure gauge (part number 583.35802).

3.Start heater (see Operation, page

7). Allow motor to reach full speed.

4.Adjust pressure. Turn relief valve to right to increase pressure. Turn relief valve to left to decrease pressure. See specifications at right for correct pressure for each model.

5.Remove pressure gauge. Replace pressure gauge plug in filter end cover.

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 (110,000 Btu/Hr Model only) 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.

Spark Plug

(35/55,000 Btu/Hr Models)

1.Remove upper shell (see page 10).

2.Remove fan (see page 10).

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

4.Remove spark plug wire from spark plug.

5.Remove two 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" gap.

10.Replace burner strap onto spark plug. Rotate burner strap to position spark plug electrodes (see Figure 18, page 12).

Continued

 

 

(35/55,000 Btu/Hr Models Shown)

 

Pressure

 

Relief

 

Gauge

 

 

 

Plug

 

 

 

 

 

Valve

 

Figure 12 - Pressure Gauge Plug Remova_

 

 

Pump

 

 

Model

Pressure

 

 

35,000 Btu/Hr

3.0 PSI

Pressure

 

55,000 Btu/Hr

3.4 PSI

 

 

 

110,000 Btu/Hr

4.5 PSI

 

 

 

 

Figure 13 - Adjusting Pump Pressure

 

 

Fuel Filter, Bushing,- ....

Upper

 

 

and Lower Fuel Line

Fuel Filter

 

l

Fuel

 

Line

 

 

,/

 

Upper Fuel Line

 

 

Side Cover

Side Cover

 

 

Figure

14 - Fuel Filter Removal,

Figure

15 - Fuel Filter Re-

35/55, 000 Btu/Hr Models

moval,

110,000 Btu/Hr Model

Combustion

Spark Plug

 

 

 

Mounting Nut

 

 

 

Chamber "\..

Burner

 

 

 

Spark

 

 

\.\

Strap

 

 

\\\

Plug

Spark Plug

 

o

/

 

 

Wire

 

 

/

 

 

 

 

 

/

 

 

 

 

/

 

 

 

/

/

 

 

 

 

 

y

Air Line jjJJ

Fuel Line Hose

Hose

 

Figure 16 - Spark Plug Removal, 35/55,000 Btu/Hr Models

Bend Here

to Adjust Gap

.055" Gap

Il!

Figure 17 - Spark Plug Gap, 35/55, 000 Btu/Hr Models

100506

Page 11
Image 11
Sears 583.3565, 583.35683, 583.35682 Pump Pressure Adjustment, Fuel Filter, Spark Plug, 35/55,000 Btu/Hr Models, Pump Model

583.35682, 583.35683, 583.3565 specifications

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