DeWalt 3JR70A Tank Pressure Gauge, Switch, Safety Regulator Valve, Drain Valve Check Valve

Westward Operating Instructions and Parts Manual Model 3JR70A

Portable Air Compressor

Tank Pressure Gauge		Outlet
Pressure		Pressure
		Gauge
Switch
On/
Auto/Off
Switch
Safety	Regulator
Valve

Description of Operation (continued)	Cooling System (not shown): This
Outlet Pressure Gauge: The	compressor contains an advanced
outlet pressure gauge indicates the	design cooling system. At the heart of
	this cooling system is an engineered
air pressure available at the outlet
	fan. It is perfectly normal for this fan
side of the regulator. This pressure
	to blow air through the vent holes in
is controlled by the regulator and is
	large amounts. You know that the
always less than or equal to the tank
	cooling system is working when air is
pressure.
	being expelled.
Tank Pressure Gauge: The tank
	Air Compressor Pump (not shown):
pressure gauge indicates the reserve
	Compresses air into the air tank.
air pressure in the tank.
	Working air is not available until the
Regulator: Controls the air pressure
	compressor has raised the air tank
shown on the outlet pressure gauge.
	pressure above that required at the
Turn the knob clockwise to increase
	air outlet.
pressure and counterclockwise to
	Check Valve: When the air
decrease pressure.
	compressor is operating, the check
Drain Valve: The drain valve is
	valve is "open", allowing compressed
located at the base of the air tank and
	air to enter the air tank. When the
is used to drain condensation at the
	air compressor reaches "cut-out"
end of each use.
	pressure, the check valve "closes",
	allowing air pressure to remain inside
	the air tank.
Drain Valve
	Check Valve

11- ENG