Cub Cadet TRACTOR 5252 - Manual (Page 15)

15
SAFETY INTERLOCK SYSTEM
This tractor is equipped with a safety interlock sys-
tem for the protection of the operator. If the interlock
system should ever malfunction, do not operate the
tractor. Contact your authorized Cub Cadet Dealer.
The safety interlock system prevents the engine
from cranking or starting unless the brake pedal is
fully depressed, and the PTO is “OFF”.
• The safety interlock system will shut off the
engine if the operator leaves the seat before
engaging the parking brake.
• The safety interlock system will shut off the
engine if the operator leaves the seat with the
PTO “ON”, regardless of whether the brake
lock is engaged.
NOTE: The PTO switch must be moved to the
“OFF” position to restart the engine.
• The safety interlock system will shut off the
PTO if the reverse control pedal is depressed,
unless the reverse override function is
activated.
NOTE: If the reverse override function has
been activated, it will remain activated until the
ignition switch is turned to the "OFF" position
for a 20 second duration.
FUELING THE TRACTOR
Fill the fuel tank with only clean, fresh, unleaded
regular grade gasoline with a minimum octane
rating of 87. If engine knocking or pinging occurs,
use a different source of gasoline or a higher
octane rating.
Oxygenated Fuels. Some fuels, called oxygenated
or reformulated gasoline, are gasoline blended with
alcohols or ethers. Gasoline blended with either
ethyl alcohol (maximum 10% by volume) or methyl
tertiary butyl ether (MTBE, maximum 15%) are
approved as fuels for the engine, provided they
meet the minimum octane rating requirement. Other
gasoline/alcohol or gasoline/ether blends are not
approved for use in the tractor’s engine. If any
undesirable operating symptoms occur, use
gasoline with a lower percentage of alcohol or ether.
Purchase fuel in a quantity that can be used within
30 days to assure fuel freshness. Do not use
gasoline left over from the previous season to
minimize gum deposits in the fuel system.
WARNING: Gasoline is extremely
flammable and can be explosive in
certain conditions. Do not fill the fuel
tank when the engine is running or
while the engine is hot. Tighten the
fuel cap securely.
The fuel fill cap is located on the fender to the left of
the seat. Unscrew the fuel cap and fill tank from an
approved gasoline container. Immediately wipe up
any spilled fuel.
WARNING: Never fill the fuel tank to
the top of the filler neck. Expansion
could result in overflow through the
vents in the cap, allowing highly
flammable fuel to come in contact with
the operator.
NEW TRACTOR BREAK-IN PROCEDURES
Proper care during the first hours of operation will
help to assure optimal performance from your new
tractor.
• Never operate a new engine immediately under
full load. Allow the engine to warm up.
• Avoid operating the engine for prolonged periods
at either high or low speed with no load.
• Use the transmission’s low speed range for
heavy loads to avoid lugging down or stalling
the engine due to overload.
• Closely monitor the engine oil and keep filled to
the recommended level.
• After the first ten hours of operation, check the
front wheel lug bolts and rear wheel lug nuts. If
necessary, retorque to 60-70 ft. lbs.
• Perform all break-in maintenance procedures
found in the MAINTENANCE section.
STARTING THE ENGINE
WARNING: Always sit in the operator’s
seat when starting the tractor. Never
start the tractor from any other
position.
• Operator must be sitting in the tractor seat.
• Pull the choke control knob out to the full choke
position. Less choking may be necessary due
to variations in temperature, grade of fuel, etc.
Little or no choking will be needed when the
engine is warm.
• Make sure the PTO switch is in the “OFF”
position. NOTE: The PTO light on instrument
panel will be lit if the switch is in the "ON"
position.