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Husqvarna 917.279240 Owner's Manual page 12

Yth20f42t

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OPERATION
ADD GASOLINE
Fill fuel tank to bottom of filler neck, Do not overfill, Use
fresh, clean, regular unleaded gasoline with a minimum of
87 octane, (Use of leaded gasoline will increase carbon
and lead oxide deposits and reduce valve life). Do not
mix oil with gasoline, Purchase fuel in quantities that can
be used within 30 days to assure fuel freshness,
I
CAUT'ON:
WiPe
°ff a ny sp"led
°"°r I
fuel. Do not store, spill or use gasoline
near an open flame.
IMPORTANT:
WHEN
OPERATING
IN TEMPERATURES
BELOW32°F(0°C),
USE
FRESH,
CLEAN
WINTER
GRADE
GASOLINE
TO
HELP
INSURE
GOOD
COLD
WEATHER
STARTING.
CAUTION: Alcohol blended fuels (called gasohol or
using ethanol or methanol) can attract moisture which
leads to separation and formation
of acids during
storage. Acidic gas can damage the fuel system of
an enginewhile in storage. To avoid engine problems,
the fuel system should be emptied before storage
of 30 days or longer. Drain the gas tank, start the
engine and let it run until the fuel lines and carburetor
are empty. Use fresh fuel next season. See Storage
Instructions for additional information.
Never use
engine or carburetor cleaner products in the fuel
tank or permanent damage may occur.
TO START ENGINE (See Fig. 3)
When starting the engine for the first time or if the engine
has run out of fuel, it will take extra cranking time to move
fuel from the tank to the engine,
Be surefreewheel control is in the transmission engaged
position,
Sit on seat in operating position, depress brake pedal
and set parking brake.
Move attachment clutch to "DISENGAGED" position.
Move throttle control to choke position,
NOTE: Before starting, read the warm and cold starting
procedures below,
Insert key into ignition and turn key clockwise to"START"
position and release key as soon as engine starts,
Do not run starter continuously for more than fifteen
seconds per minute, If the engine does not start after
several attempts, move throttle control to fast position,
wait a few minutes and try again, If engine still does
not start, move the throttle control back to the choke
position and retry.
WARM WEATHER STARTING (50 ° F and above)
When engine starts, move the throttle control to the
fast position,
The attachments and ground drive can now be used, If
the engine does not accept the load, restart the engine
and allow it to warm up for one minute using the choke
as described above,
COLD WEATHER STARTING ( 50 ° F and below)
When engine starts, allow engine to run with the throttle
control in the choke position until the engine runs roughly,
then move throttle control to fast position,This may re-
quire an engine warm-up period from several seconds
to several minutes, depending on the temperature,
AUTOMATIC TRANSMISSION WARM UP
Before driving the unit in cold weather, the transmission
should be warmed up as follows:
Be sure the tractor is on level ground.
Release the parking brake and let the brake slowly
return to operating position,
Allow one minute fortransmission to warm up.This
can be done during the engine warm up period.
The attachments can also be used during the engine
warm-up period after the transmission has been warmed
up,
NOTE:
If at a high altitude (above 3000 feet) or in cold
temperatures (below 32 F) the carburetor fuel mixture may
need to be adjusted for best engine performance, See "TO
ADJUST CARBURETOR" in the Service and Adjustments
section of this manual.
PURGE TRANSMISSION
I i_
CAUTION: Never engage or disengage
freewheel lever while the engine is run-
ning.
To ensure proper operation and performance, it is recom-
mended that the transmission be purged before operating
tractor for the first time, This procedure will remove any
trapped air inside the transmission which may have de-
veloped during shipping of your tractor,
IMPORTANT: SHOULD YOUR TRANSMISSION REQUIRE
REMOVAL FOR SERVICE OR
REPLACEMENT,
IT SHOULD
BE PURGEDAFTER REINSTALLATION BEFOREOPERATING
THE TRACTOR.
Place tractor safely on a level surface - that is clear and
open - with engine off and parking brake set.
Disengage transmission by placing freewheel control
in freewheeling position (See"TOTRANSPORT"in
this
section of manual),
Sitting in the tractor seat, start engine. After the engine
is running, move throttle control to slow position, Dis-
engage parking brake
I&
AUTION: At any time, during step 4,
I
there may be movement of the drive
I
wheels,
12

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