Fuel Filters - Desa SB350D Owner's Manual

HIGH PRESSURE PORTABLE FORCED AIR
HEATER 350,000 AND 600,000 BTU/HR
SERVICE
PROCEDURES
Continued
Fuel Lines
(Procedure for tightening fuel lines)
1. Remove upper shell (see page 10).
2. Use an adjustable wrench as a backup
on 90° fittings.
3. Use 7/16" wrench and tighten fuel lines
at solenoid valve (see Figure 13), pump,
and pump fuel filter assembly (see Fig-
ure 14).
Solenoid
Valve
Figure 13 - Fuel Line at Solenoid Valve
Pump
Fuel Filter
Assembly
Figure 14 - Fuel Lines at Pump and Pump
Fuel Filter Assembly

Fuel Filters

A. Tank Fuel Filter
1. Disconnect fuel lines from pump and
pump fuel filter assembly with 7/16"
wrench (see Figure 15).
2. Carefully pry fuel filter loose from fuel
tank with flat end of screwdriver.
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 pump
fuel filter assembly.
Burner Head
Fuel
Line
Figure 15 - Removing Tank Fuel Filter
Pump
Fuel
Lines
Pump Fuel
Filter
Assembly
Fuel
Lines
Fuel Filter
12
B. Pump Fuel Filter
1. Unscrew canister bottom from canis-
ter top with adjustable pliers.
2. Remove fuel filter and gasket from can-
ister bottom (see Figure 16).
3. Inspect canister bottom and fuel filter
for water droplets or dirt.
4. Rinse canister bottom in clean kero-
sene.
5. Wipe inside of canister bottom dry with
clean cloth.
6. Rinse fuel filter in clean kerosene.
7. Put clean fuel filter and gasket back in
canister bottom.
8. Screw canister bottom into canister top.
9. Tighten securely.
Figure 16 - Fuel Pump Filter and Canister
Canister Top
Gasket
Fuel Filter
Canister
Bottom
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