Check Spark Plugs; Emptying The Fuel Tank And Cleaning The Fuel Filter - Exmark COMMERCIAL 30 Operator's Manual

Maintenance
D. From the front of the machine, remove
the belt from the engine pulley and then
remove from the transmission pulley.
E. While the idler pulley is pulled out of
the way, install the new transmission belt
placing the belt over the transmission
pulley first and then over the engine pulley.
F. Using a socket wrench to hold the idler
pulley in position, remove the screwdriver
from the access hole in the transmission
and return the idler pulley to its tensioned
position.
11. Ensure that the new transmission belt is
positioned correctly.
12. Reinstall the dust shield using the hardware
retained in step 9 (machines with a Kawasaki
engine).
13. Reinstall the rear panel and secure with its
mounting hardware retained in step 8 (machines
with a Kohler engine).
14. Adjust the bracket to contact the transmission
(see Adjusting the Transmission section).

Check Spark Plugs

Service Interval: Every 100 hours
1. Stop the engine and wait for all moving parts to
stop.
2. Disconnect the wire from the spark plug (see
Figure 9).
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Note: Replace a cracked, fouled, or dirty spark
plug. Do Not clean the electrodes because grit
entering the cylinder can damage the engine.
5. Set the gap on the plug to 0.030 inch (0.76 mm)
(Figure 33).
1. Side electrode
2. Center electrode
insulator
6. Install the spark plug and the gasket seal.
7. Torque the plug to 17 ft-lb (23 N-m).
8. Connect the wire to the spark plug.
Emptying the Fuel Tank and
Cleaning the Fuel Filter
Service Interval: Every 100 hours
The fuel filter (screen) element is located inside the
fuel tank (if applicable).
1. Stop the engine and wait for it to cool down.
Note: Drain gasoline for a cold engine only.
2. Disconnect the wire from the spark plug.
3. Close the fuel valve.
4. Disconnect the fuel line by loosening the tube
clamp at the carburetor.
5. Open the fuel valve by turning the lever to the
open position.
6. Drain the gasoline completely from the tank and
fuel line into an approved fuel container.
7. Remove the fuel tank from the mower.
8. Close the fuel valve.
9. Pour a small amount of fuel in the fuel tank, move
the fuel around in the tank, and pour it out into
an approved fuel container.
10. Install the fuel tank and fuel line.
Change Fuel Filter
Service Interval: As required
A fuel filter is installed between the fuel tank and the
engine. Replace when necessary.
30
Figure 33
3. Air gap—0.030 inch
(0.76 mm)
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