Desa RK150 owner manual Pump Pressure, Adjustment, Fuel Filter, Spark Plug, shell

Pump Pressure		Relief
Adjustment		Valve
		Pressure	Pressure
1.	Remove pressure gauge plug
		Gauge	Gauge
	from filter end cover.
		Plug
2.	Install accessory pressure
	gauge (part number HA1180).
3.	Start heater (see Operation,
	page 8). Allow motor to reach
	full speed.
4.	Adjust pressure. Turn relief
	valve to right to increase	Figure 8 - Pressure Gauge Plug Removal
	pressure. Turn relief valve to
	left to decrease pressure.
	Adjust pump pressure to 4.9	Figure 9 - Adjusting Pump Pressure
	psi.
5.	Remove pressure gauge.
	Replace pressure gauge plug in
	filter end cover.	Fuel Filter, Bushing,
			Upper
Fuel Filter		and Lower Fuel Line
			Fuel
1.	Remove side cover screws		Line
	using
	5/16" nut-driver.
2.	Remove side cover.
3.	Pull upper fuel line off fuel
	filter neck.
4.	Carefully pry bushing, fuel
	filter, and lower fuel line out of
	fuel tank.
5.	Wash fuel filter with clean fuel
	and replace in tank.	Side Cover
6.	Attach upper fuel line to fuel	Figure 10 - Fuel Filter Removal
	filter neck.
7.	Replace side cover.
Spark Plug		Burner
		Head	Spark Plug
1.	Remove upper shell (see page
			Wire
	11).
2.	Remove fan (see page 11).
3.	Remove spark plug wire from	Spark
	spark plug.
		Plug
4.	Remove spark plug from burner
	head using 13/16" open-end
	wrench.	Figure 11 - Spark Plug Removal

5.Clean and regap spark plug electrodes to .075" (1.9 mm)

	gap.	Bend Here
		to Adjust
6.	Install spark plug in burner head.
		Gap
7.	Attach spark plug wire to spark	.075" (1.9 mm) Gap
	plug.

8.Replace fan (see page 11).

9.Replace fan guard and upper

shell. Figure 12 - Spark Plug Gap

12

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