Desa 70 - Manual (Page 11)

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100 FUEL FILTER REMOVAL PFA/P 041
150 FUEL FILTER REMOVAL PFA/P 043
Fuel Filter
(90,000 BTU/Hr Model)
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,
lower fuel line, and fuel
filter 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.
Fuel Filter
(150,000 BTU/Hr Model)
1. Remove upper shell (see
page 10).
2. Remove fan (see page 19).
3. Loosen flare nut using 3/4"
open-end wrench. Push fuel
tube down, away from
burner head. Fuel filter is
located inside of fuel tube.
4. Lift out fuel filter.
5. Wash fuel filter with clean
fuel and replace in fuel
tube.
6. Connect fuel tube to burner
head. Attach flare nut until
nut seats against fuel tube
and fitting. Tighten 1/4 turn
more using 3/4" open-end
wrench (100-130 inch-
pounds/11.3-14.7 n-m).
7. Replace fan (see page 19).
8. Replace fan guard and
upper shell.
Figure 14 - Fuel Filter Removal, 150,000 BTU/Hr Model
Burner
Head
Combustion
Chamber
Fuel Filter
Fuel Tube
Flare Nut
Figure 13 - Fuel Filter Removal, 90,000 BTU/Hr Model
Fuel Filter, Bushing,
and Lower Fuel Line
Upper
Fuel Line
Side Cover