Gravely 996122 Owner's/Operator's Manual page 29

The fuel tank is located behind the passenger seat. Total fuel
capacity is 8 gallons.
When filling the fuel tank, set park brake, turn off engine and
remove ignition key. Clean dirt from around fuel tank cap,
remove cap and begin filling. When finished, screw cap back
on securely and wipe up any spilled gasoline. Use regular
unleaded gasoline with an octane rating of 87 or higher.
IMPORTANT: Never use methanol, gasoline containing
methanol and/or gasohol containing more than 10% ethanol.
These fuels can damage the vehicle's fuel system. Do not
mix oil with gasoline.
Using a fuel stabilizer/conditioner in the vehicle can provide
benefits such as:
1. Keeps gasoline fresh during storage of 90 days or less.
Empty fuel tank for longer storage.
2. Cleans engine during operation.
3. Eliminates gum-like varnish build-up in the fuel system.
IMPORTANT: Do not use fuel additives containing methanol
or ethanol.
Add correct amount of gas stabilizer/conditioner to the gas.
For best results, always follow manufacturer's directions
when adding gas stabilizer/conditioner.
Fuel Filter Maintenance
Refer to Figure 22:
The fuel filter is installed in the fuel line between the fuel tank
and engine. Check it every 100 hours for excessive water
accumulation or sediment and replace if necessary.
Otherwise replace after every 300 hours of operation or
annually, whichever occurs first. Also check fuel tank and
fuel line for cracks and leaks every 100 hours.
1. Secure vehicle for maintenance. See Securing Vehicle
for Maintenance on page 24.
2. Following all Fuel Safety Cautions and Warnings,
remove clamps securing fuel filter and remove fuel
filter for inspection.
Figure 22
3. Check fuel filter for sediment and water accumulation.
Check fuel lines for cracks and leaks.
4. Replace damaged fuel lines with new ones.
5. Replace fuel filter when sediment or excessive water is
present.
6. Reattach fuel filter to fuel line with arrow on filter
pointing in the same direction fuel flows in the line.
Fuel flows towards the engine.
7. Install hose clamps around fuel filter.
8. Start vehicle and inspect for fuel leaks along fuel line
and fuel filter.
9. Shut off vehicle. Remove blocks securing cargo box up
and lower cargo box.
10. Remove wheel chocks if used.
Emptying the Fuel Tank
DANGER: Never siphon a fuel tank by sucking
on a hose with your mouth. Fuel vapors and
gas are harmful to your lungs and can
permanently damage them. Always use a
siphon pump.
The fuel tank will need emptying when preparing for long
term storage or replacing a damaged one.
1. Secure vehicle for maintenance. See Securing Vehicle
for Maintenance on page 24.
2. Follow all Fuel Safety Cautions, Warnings and
Dangers.
3. Remove gas cap and siphon fuel through fill opening
with a siphon pump into an approved gas container.
Make sure container or containers are capable of
holding all the gas. Do not dump fuel on the ground.
Engine Maintenance
General Information
Prevent engine fires. Clean engine compartment daily.
Clean cooling fan screen of all debris including dirt, trash
and oil. Make sure engine surface and cooling fins are clean.
Check engine compartment often for cleanliness when
traveling over areas that produce high amounts of airborne
combustible materials.
Detailed instructions and recommendations for break-in and
regular maintenance are specified in the engine operator's
manual. Engine warranty is backed by the engine
manufacturer. Please refer to engine manufacturer's manual
for engine servicing, lubricating oil levels, oil quality and
viscosity recommendations, bolt torques, etc. Special
attention should be paid to applicable data that is not
duplicated here.
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