Cub Cadet 7252 - Manual (Page 17)

17
SAFETY INTERLOCK SYSTEM
This tractor is equipped with a safety interlock
system 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. If the
reverse override function had been activated, it
will remain activated until the ignition switch is
turned to the "OFF" position.
• The safety interlock system will shut off the
PTO if the reverse control pedal is depressed,
unless the reverse override function is
activated.
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 (Max. 10%) or methyl tertiary butyl
ether (MTBE, Max. 15%) are approved as fuels for
the engine, provided they meet the minimum
octane rating requirement. Do not use gasoline
which contains Methanol. 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.
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 speeds with no
load.
• Use the transmission’s low speed range for
heavy loads to avoid lugging of the engine due
to overload.
• Closely monitor the engine oil and coolant
levels, and keep filled to the recommended
levels.
• After the first ten hours of operation, check all
of the front and rear wheel bolts. If necessary,
retighten to the following torque:
Front Wheels — 55 ft. lbs.
Rear Wheels — 80 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
attempt to start the engine while
standing beside the tractor.
• 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.