Filter
Top Products
8
104975
PORTABLE FORCED AIR HEATER
R 15 E UK
®
SERVICE
PROCEDURES
Continued
Figure 8 - Pressure Gauge Plug Removal
Figure 9 - Adjusting Pump Pressure
Pump
Pressure
Model (PSI/Bar)
50,000 Btu/Hr 4.9/0.338
PUMP PRESSURE
ADJUSTMENT
1. Remove pressure gauge plug from filter
end cover.
2. Install accessory pressure gauge (part
number HA1180).
3. Start heater (see Operation, page 5).
Allow motor to reach full speed.
4. Adjust pressure. Turn relief valve to
right to increase pressure. Turn relief
valve to left to decrease pressure. See
specifications below for correct pres-
sure for each model.
5. Remove pressure gauge. Replace pres-
sure gauge plug in filter end cover.
Pressure
Gauge
Pressure
Gauge
Plug
Relief
Valve
Figure 11 - Spark Plug Removal
Burner
Head
Spark Plug
Wire
Spark
Plug
Figure 10 - Fuel Filter Removal
FUEL FILTER
1. Remove side cover screws using 5/16"
nut-driver.
2. Remove side cover.
3. Pull rubber fuel line off fuel filter neck.
4. Carefully pry bushing and fuel filter out
of fuel tank.
5. Wash fuel filter with clean fuel and re-
place in tank.
6. Attach rubber fuel line to fuel filter neck.
7. Replace side cover.
SPARK PLUG
1. Remove upper shell, page 7.
2. Remove fan (see page 7).
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
as follows: 1.9 mm (.075") gap
6. Install spark plug in burner head.
7. Attach spark plug wire to spark plug.
8. Replace fan (see page 7).
9. Replace fan guard and upper shell.
Figure 12 - Spark Plug Gap
Bend Here to Adjust Gap
1.9 mm
(.075")
Gap
Fuel Filter
Side Cover
Fuel
Line