Exmark 4500-450 Lawn Mower User Manual


 
Operation
Using Stabilizer/Conditioner
Use a fuel stabilizer/conditioner in the machine to
provide the following benets:
• Keeps gasoline fresh during storage of 30 days or
less. For longer storage it is recommended that
the fuel tank be drained.
• Cleans the engine while it runs.
• Eliminates gum-like varnish buildup in the fuel
system, which causes hard starting Add the
correct amount of gas stabilizer/conditioner to
the gas.
Note: A fuel stabilizer/conditioner is most effective
when mixed with fresh gasoline. To minimize the
chance of varnish deposits in the fuel system, use fuel
stabilizer at all times.
Gasoline/Alcohol blends
Gasohol (up to 10 percent ethyl alcohol, 90 percent
unleaded gasoline by volume) is approved for fuel use
by the engine manufacturer. Other gasoline/alcohol
blends are not approved.
Filling the Fuel Tank
1. Shut the engine off and set the motion controls
to the neutral position and engage parking brake.
2. Clean around the fuel tank cap and remove the
cap.
3. Add unleaded regular gasoline until the body of
the tank is full but fuel does not ll the neck of
the tank (Figure 6). This space in the neck of the
tank allows gasoline to expand. Do Not ll the
fuel tank completely full.
Figure 6
1. Gas tank opening 3. Gas tank body
2. Fill to here,
approximately
4. Install the fuel tank cap securely. Wipe up any
gasoline that may have spilled.
Checking the Engine Oil
Level
Before you start the engine and use the machine,
check the oil level in the engine crankcase; refer to
Checking the Oil Level in Engine Maintenance.
Starting the Engine
1. Sit down on the seat and move the motion
controls outward to the neutral position and
engage the parking brake.
2. Disengage the blades by moving the blade control
switch to Off (Figure 7).
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