200,000 Btu/Hr
PORTABLE FORCED AIR HEATER
SERVICE
PROCEDURES
Continued
SPARK PLUG
1. | Remove upper shell (see Upper Shell |
| Removal, page 8). |
2. | Remove fan (see Fan, page 8). |
3. | Remove spark plug wire from spark |
| plug (see Figure 12). |
4. | Remove spark plug and wave spring |
| washer from burner head using 13/16" |
| |
5. | Clean and regap spark plug electrodes |
| to .110 gap (see Figure 13). |
Side
Electrode
270° Acceptable Range For Side Electrode
Figure 14 - Acceptable Range For Side Electrode
6. | Install spark plug and wave spring |
| washer in burner head. Torque 40 to |
| 60 |
| essary) to bring side electrode into the |
| acceptable range (see Figure 14). |
7. | Attach spark plug wire to spark plug. |
8. | Replace fan (see Fan, page 8). |
9. | Replace fan guard and upper shell (see |
| Upper Shell Removal, page 8) |
| Wave | Spark | |
Burner | Plug | ||
Spring | |||
Head | Wire | ||
Washer | |||
|
|
Spark
Plug
NOZZLE
1.Remove upper shell (see Upper Shell Removal, page 8).
2.Remove fan (see Fan, page 8).
3.Remove fuel and air line hoses from burner head.
4.Remove spark plug wire from spark plug.
5.Remove spark plug from burner head using 13/16"
6.Remove three screws using 5/16" nut- driver and remove burner head from combustion chamber.
7.Place burner head into vise and lightly tighten.
8.Carefully remove nozzle from burner head using 5/8" socket wrench (see Fig- ure 16, page 11).
9.Blow compressed air through face of nozzle. This will free any dirt in nozzle area.
10.Inspect nozzle seal for damage.
11.Replace nozzle into burner head and tighten firmly
12.Attach burner head to combustion chamber.
13.Install spark plug in burner head.
14.Attach spark plug wire to spark plug.
15.Attach fuel and airline hoses to burner head.
16.Replace fan (see Fan, page 8).
17.Replace fan guard and upper shell (see Upper Shell Removal, page 8).
Figure 12 - Spark Plug Removal
Bend Here to
Adjust Gap
Gap
Figure 13 - Spark Plug Gap
Combustion
Chamber
Burner Head
Spark Plug Wire
Wave Spring
Washer
| Spark |
Screw | Plug |
| |
Air Line Hose | Fuel Line Hose |
|
Figure 15 - Removing Burner Head
10 | 102569 |
