DESCRIPTION OF OPERATION
Air Compressor Pump: To compress air, the piston moves up and down in the cylinder. On the downstroke, air is drawn in through the intake valves. The exhaust valves remain closed. On the upstroke of the piston, air is compressed. The intake valves close and compressed air is forced out through the exhaust valves, through the outlet tube, through the check valve and into the air tank. Working air is not available until the compressor has raised the tank pressure above that required at the air outlet.
Check Valve: When the air compressor is operating, the check valve is “open”, allowing compressed air to enter the air tank. When the air compressor reaches
Pressure Switch: The pressure switch automatically starts the motor when the tank pressure drops below the factory set
Regulator: The air pressure coming from the air tank is controlled by the regulator. Turn the regulator knob clock- wise to increase pressure and counterclockwise to decrease pressure. To avoid minor readjustment after making a change in pressure setting, always approach the desired pressure from a lower pressure. When reducing from a higher to a lower setting, first reduce to pressure less
than that desired, then bring it up to the desired pressure. Depending on the air requirements of each particular accessory, the outlet regulated air pressure may have to be adjusted while operating the accessory.
Outlet Pressure Gauge: The outlet pressure gauge indicates the air pressure available at the outlet side of the regulator. This pressure is controlled by the regulator and is always less or equal to the tank pressure. See “Operat- ing Procedures”.
Tank Pressure Gauge: The tank pressure gauge indi- cates the reserve air pressure in the tank.
Cooling System: This compressor contains an advanced design cooling system. At the heart of this cooling system is an engineered fan. It is perfectly normal for this fan to blow air through the vent holes in large amounts. You know that the cooling system is working when air is being expelled.
Air Intake Filter: This unit requires no air filter due to the unique design of the air intake system.
Drain Valve: The drain valve is located at the base of the air tank and is used to drain condensation at the end of each use.
INSTALLATION AND BREAK-IN PROCEDURES
Location of the Air Compressor
Your compressor comes to you completely assembled and ready for use. Operate the air compressor in a dry, clean, cool and well ventilated area. The air compressor pump and case are designed to allow for proper cooling. Clean or blow off dust or dirt that collects on the air compressor. A clean air compressor runs cooler and provides longer service. The ventilation openings on your air compressor are necessary to maintain proper operating temperature. Do not place rags or other containers on or near these openings.
Voltage and Circuit Protection
See front cover.
Extension Cords
Use extra air hose instead of an extension cord to avoid voltage drop and power loss to the motor.
If an extension cord must be used, be sure it is:
•a
•in good condition.
•no longer than 50 feet.
•14 gauge (AWG) or larger. (Wire size increases as gauge number decreases.) 12 AWG, 10 AWG and 8 AWG may also be used. DO NOT USE 16 OR 18 AWG.
7 — ENG