FEATURES AND CONTROLS
8
Air Cleaner: Protects engine by filtering dust and debris out
of intake air.
Air Compressor Pump: Pump compresses air into tank.
Check Valve: When unit is operating, Check Valve is “open”,
allowing air to enter tank. At “cut-out” pressure, Check Valve
closes, preventing air from flowing back into pump.Check
Valve is not serviceable by user.
Choke Lever: Used when starting a cold engine.
Data Tag: (not shown) The data tag contains serial number,
model number, and revision number information.
Drain Valve: Valves are located near bottom of each air tank
at the handle end and are used to drain condensation.
Engine Information: Stamped on side of valve cover.
Provides model, type and trim number of engine. Please have
this information readily available when calling for assistance.
Engine Speed Lever: Used to adjust engine speed to
control pump output.
Fuel Shutoff Valve: Used for turning engine’s fuel supply on
and off.
Fuel Tank: Capacity of one (1) U.S. gallon.
Fuel Tank Cap: Inspect and fill gas tank here.
Engine Oil Fill Cap: Fill engine with oil here.
Compressor Oil Fill Location: Fill pump with oil here.Oil
level sight glass indicates pump oil level.
On/Off Switch: Set this switch to ON before using Starter
Handle. Set switch to OFF to switch off engine.
Outlet Pressure Gauge: Indicates air pressure at Quick
Connect Fitting.
Pressure Control: Controls air pressure delivered to Quick
Connect Fitting; can be secured with locking ring.
Pressure Release Valve: Located adjacent to Check Valve,
valve automatically releases air from compressor components
at “cut-out” pressure or when unit is shut off.Valve is not
adjustable or serviceable by user.
Pilot Valve: Automatically increases engine speed when tank
pressure drops below “cut-in” pressure and idles engine when
pressure rises to “cut-out” pressure.Valve is not adjustable or
serviceable by user.
Quick Connect Fittings: Connect air hoses here.
Safety Valve: Valve protects against excessive tank pressure
by ‘popping out’ at its factory setting, thus relieving pressure.
Starter Handle: Used to start the engine.
Tank Pressure Gauge: Gauge indicates air pressure within
air tanks.
NOTE: See GLOSSARY on page 24 for definitions.
Drain Valve
Air Compressor Pump
Compressor Oil Fill Location
FEATURES AND CONTROLS
Read this Operator’s Manual and safety rules before operating your compressor.
Compare this illustration with your air compressor to familiarize yourself with the location of various controls and
adjustments. Save this manual for future reference.
Outlet Pressure Gauge
Check Valve
Tank Pressure Gauge
Fuel Tank Cap
Fuel Shutoff Valve
Engine Oil Fill Cap
Quick Connect Fitting
Pilot Valve
Safety Valve
Fuel Tank
Air Cleaner
Starter Handle
Choke Lever
Pressure Release Valve
Pressure Control
Engine Information
Engine Speed Lever
ON - OFF Switch
Quick Connect Fitting
Summary of Contents for 74002
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