Filter
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12
Fuel Filter
1. Remove upper shell (see
page 10).
2. Remove fan (see page 10).
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 10).
8. Replace fan guard and
upper shell.
Figure 12 - Fuel Filter Removal
1 0 FUEL FILTER REMOVAL
Burner
Head
Combustion
Chamber
Fuel Filter
Fuel Tube
Flare Nut
SPARK PLUG REMOVAL 70, 100 &150 PFA/P 031B
Burner
Head
Spark
Plug
Bend Here
to Adjust
Gap
.055"
(1.4mm)
Gap
Spark Plug
1. Remove upper shell (see
page 10).
2. Remove fan (see page 10).
3. Remove spark plug wire
from spark plug.
4. Remove spark plug from
burner head using 13/16"
open-end wrench.
5. Clean and regap spark plug
electrodes to .055" (1.4mm)
gap.
6. Install spark plug in burner
head.
7. Attach spark plug wire to
spark plug.
8. Replace fan (see page 10).
9. Replace fan guard and
upper shell.
Figure 13 - Spark Plug Removal
Figure 14 - Spark Plug Gap
Spark Plug Wire