www.desatech.com
118419-01E
17
Pressure
Gauge
Figure 22 - Adjusting Pump Pressure
Pump
Model Pressure
100 5.9 PSI
150 6.4 PSI
200 7.1 PSI
Figure 23 - Fuel Filter Removal
Fuel Filter
Upper
Fuel
Line
Lower
Fuel
Line
Bushing
Fuel Filter
SerViCe ProCedureS
Continued
SPARK IGNITOR
1. Open upper shroud and remove upper shell
(see
Shroud and Upper Shell
, page 15).
2. Disconnect ignitor wire from spark ignitor.
3. Remove spark ignitor screw with a 1/4"
nut driver. Carefully remove spark ignitor
from nozzle adapter bracket.
4. Clean and regap spark ignitor to 0.110".
5. Reassemble spark ignitor, shroud and
upper shell.
Figure 24 - Removing Spark Ignitor
Combustion
Chamber
Ignitor
Nozzle
Adapter
Bracket
NOZZLE ASSEMBLY
(For 100 and 150 Models Only)
1. Open upper shroud and remove upper shell
(see
Shroud and Upper Shell
, page 15).
2. Disconnect air and fuel lines.
3. Turn nozzle assembly to notch in bracket
and pull toward motor to remove (see
Figure 25).
4. Place plastic hex-body into vise and lightly
tighten.
Figure 25 - Removing Nozzle/Adapter
Assembly (100/150 Models)
Nozzle
Adapter
Bracket
Combustion
Chamber
Nozzle
Adapter
Air and
Fuel
Lines
FUEL FILTER
1. Open upper shroud (see
Shroud and Up-
per Shell
, page 15).
2. Pull upper fuel line off fuel filter neck (see
Figure 23).
3. Carefully pry bushing, fuel filter, and lower
fuel line out of fuel tank (see Figure 23).
4. Wash fuel filter with clean fuel and replace
in tank.
5. Attach upper fuel line to fuel filter neck.
6. Replace upper shroud.
Barb Fitting Points
Towards Blower
Housing
