Operation - Cub Cadet GT 3100 Operator's Manual

3000 series
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SECTION 7: OPERATION
Safety Interlock Switches
This tractor is equipped with a safety
interlock system for the protection of
the operator. If the interlock system
should
ever
malfunction,
operate the tractor. Contact your
authorized Cub Cadet Dealer. The
safety interlock system prevents the
engine
from
cranking
unless
the
brake
depressed, and the PTO is "OFF".
• The safety interlock system will
automatically shut off the engine if
the operator leaves the seat before
engaging the brake lock.
• The safety interlock system will auto-
matically shut off the engine if the
operator leaves the seat with the PTO
"ON", regardless of whether the brake
lock is engaged. The PTO switch
must be "OFF" to restart the engine.
• With key switch in "NORMAL
MOWING" position: The safety
interlock system will automatically
shut off the PTO if the reverse
control pedal is depressed with the
PTO "ON". To re-engage the PTO,
release the reverse control pedal,
push the PTO switch inward to the
"OFF" position, then pull the PTO
switch outward to engage the PTO.
do
not
or
starting
pedal
is
fully
16
Fueling The Tractor
:
NOTE
Some fuels, called oxygen-
ated or reformulated gasolines, are
gasoline blended with alcohols or
ethers. Gasolines blended with either
ethyl alcohol (Max. 10%) or methyl ter-
tiary butyl ether (MTBE, Max. 15%)
are approved as fuels for this engine.
If any undesirable operating symp-
toms occur, use gasoline with a lower
percentage of these blends. Do not
use gasoline which contains Methanol
or other alcohol blends. For best
results
use
unleaded gasoline with an octane rat-
ing of 87 or higher. Purchase fuel in a
quantity that can be used within 30
days to assure fuel freshness. Do not
use gasoline left over from the previ-
ous season to minimize gum deposits
in the fuel system. Leaded gasoline is
NOT RECOMMENDED and must not
be used where exhaust emissions are
regulated.
Do not fill the fuel tank when the
engine is running or while the engine
is hot. Tighten the fuel cap securely.
Unscrew the fuel cap and fill the fuel
tank
from
an
container.
only
clean,
fresh,
approved
gasoline

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