Greenlee / A Textron Company 94455 Boeing Dr. • Rockford, IL 61109-2988 • 815-397-7070
F20 Portable Power Unit
Pre-Start
1. Check engine oil level. Running the engine with a
low oil level can cause engine damage. The oil alert
system will automatically stop the engine before the
engine oil level falls below safe limits. However, to
avoid the inconvenience of an unexpected shutdown,
always check the engine oil level before startup.
Refer to the Engine Owner’s Manual for correct oil
type and checking instructions.
2. Check fuel level. Refer to the Engine Owner’s
Manual for fuel recommendations.
3. Check hydraulic reservoir oil level. Fill to FULL level
as shown on hydraulic fluid level decal. Refer to
“Recommended Hydraulic Fluids” for correct
hydraulic fluid.
4. Check the air filter. A dirty air filter will restrict air flow
to the carburetor, reducing engine performance.
5. Verify that all current maintenance has been per-
formed on the power unit. Refer to the “Maintenance”
section.
Starting the Power Unit
1. If the fuel tank is equipped with a fuel valve, be sure
the valve is in the OPEN or ON position before
attempting to start the engine.
2. To start a cold engine, pull the choke knob out to the
CLOSED position. To start a warm engine, leave the
choke knob in the OPEN position.
Operation (cont’d)
3. Move the throttle lever away from the SLOW posi-
tion, about 1/3 of the way to the FAST position.
4. Turn the engine switch to the ON position.
5. Operate the starter by turning the key to the START
position and holding it there until the engine starts.
If the engine fails to start within 5 seconds, release
the key and wait at least ten
seconds before operating
the starter again.
Note: Using the electric
starter for more than five
seconds at a time will
overheat the starter motor
and can damage it.
6. When the engine starts,
release the key, allowing it
to return to the ON position.
7. If the choke knob has been
pulled to the CLOSED
position to start the engine,
gradually push it to the OPEN position as the engine
warms up.
Stopping the Engine
To stop the engine in an emergency, simply turn the
engine switch to the OFF position. Under normal condi-
tions, use the following procedure.
1. Move the throttle lever to the SLOW position.
2. Turn the engine switch to the OFF position.
3. Turn the fuel valve to the CLOSED or OFF position.
Lifting the Power Unit
Position the power unit on firm level ground.
Use the lifting eye and appropriate lifting equip-
ment. Make sure all components used to lift this
power unit are rated for 159 kg (350 lb) and are
securely attached to the frame of the power unit.
Inadequate components may fail and cause the
power unit to fall, resulting in injury or property
damage.
OFF ON START
ENGINE
SWITCH
Stop the power unit engine before lifting. Take care
when attaching the lifting device (chain, strap, etc.) to
the lifting eye so as not to damage the power unit.
CHOKE KNOB
OPEN
CLOSED
SLOW
FAST
THROTTLE LEVER
