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11.Tighten spark plug with spark plug
mounting nut.
12.Release hex-body of spark plug from
vise.
13.Replace burner strap onto combustion
chamber.
14.Attach spark plug wire to spark plug.
15.Attach fuel and air line hoses to
nozzle assembly.
16.Replace fan (see page 10).
17.Replace fan guard and upper shell.
Spark Plug
(110,000 Btu/Hr Model)
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 elec-
trodes to .075" 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.
Nozzle
(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. Turn nozzle assembly 1/4 turn to left
and pull toward motor to remove.
5. Place plastic hex-body into vise and
lightly tighten.
6. Carefully remove nozzle from the
nozzle adapter using 5/8" socket
wrench.
7. Blow compressed air thru 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 (40-
45 inch-pounds).
10.Attach nozzle assembly to burner
strap.
11.Attach fuel and airline hoses to
nozzle assembly.
12.Replace fan (see page 10).
13.Replace fan guard and upper shell.
Burner
Strap.
Spark Plug
--45 ° Electrode
Figure 18 - Spark Plug Rotation, 35/55,000 Btu/Hr Models Only
Burner
Head
/
Spark
Plug
.....Spark Plug
Wire
Figure 19 - Spark Plug Removal, 110,000 Btu/Hr Model
Bend Here
,_ to Adjust
/' Gap
Figure 20 - Spark Plug Gap, 110,000 Btu/Hr Model
Combustion
Chamber
Assembly
Strap
Nozzle
Assembly
/
/
Air Line Hose _ Fuel Line Hose
Figure 21 - Removing Air and Fuel
Line Hoses, 35/55,000 Btu/Hr Models
Figure 22 - Removing Nozzle Assem-
bly, 35/55, 000 Btu/Hr Models
Nozzle .... _ _ Nozzle
Face X(,,_._ _ Sleeve
Nozzle __
Nozzle ...............
Adapter __gJ"_
j/LJ U Fuel Line
Air Line Fitting
Fitting
Figure 23- Nozzle and Nozzle Adapter, 35/55,000 Btu/Hr Models
10050d