Use and Care Manual

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11160942-01A
SERVICE PROCEDURES
PUMP PRESSURE
ADJUSTMENT
1. Remove pressure gauge plug from lter
end cover (see Figure 9).
2. Install 0-15 PSI pressure gauge.
3. Start heater (see Operation, page 6). Al-
low heater to reach operating temperature
(approx. 10 minutes).
4. Adjust pressure. Turn relief valve to right
to increase pressure. Turn relief valve to
left to decrease pressure. See specica-
tions in Figure 10 for correct pressure.
5. Remove pressure gauge. Replace pres-
sure gauge plug in lter end cover.
Figure 9 - Pressure Gauge Plug Removal
Pressure
Gauge
Plug
Pressure
Gauge
Figure 10 - Adjusting Pump Pressure
Relief
Valve
Fuel Filter,
Bushing, and
Lower Fuel Line
Upper Fuel Line
Side Cover
Figure 11 - Fuel Filter Removal
FUEL FILTER
1. Remove side cover screws using 5/16"
nut-driver.
2. Remove side cover.
3. Pull upper fuel line off fuel lter neck (see
Figure 11).
4. Carefully pry bushing, fuel lter, and lower
fuel line out of fuel tank (see Figure 11).
5. Wash fuel lter with clean fuel and replace
in tank.
6. Attach upper fuel line to fuel lter neck.
7. Replace side cover.
Pump
Model Pressure
80 3.8 PSI
145 6.8 PSI
220 8.4 PSI