Husqvarna HUSQVARNA YTH20K46 业主指南

CAUTION: Alcohol blended fuels (called gasohol

or using ethanol or methanol) can attract moisture

which leads to sep a ra tion and for ma tion of acids

during storage. Acidic gas can damage the fuel

system of an engine while in storage. To avoid engine

problems, the fuel system should be emptied before

stor age 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 In struc tions for additional information.

Never use engine or carburetor cleaner products in

the fuel tank or permanent damage may occur.

OPERATION

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 sure freewheel control is in the transmission en-

gaged 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

sec onds 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.

PURGE TRANSMISSION

CAUTION: Never engage or disengage

freewheel lever while the engine is
run ning.

To ensure proper operation and performance, it is rec om -

mend ed 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-

vel oped during shipping of your tractor.
IMPORTANT: SHOULD YOUR TRANSMISSION

RE QUIRE REMOVAL FOR SERVICE OR REPLACEMENT,

IT SHOULD BE PURGED AFTER REINSTALLATION

BEFORE OPERATING 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 “TO TRANSPORT” in

this section of manual).

• Sitting in the tractor seat, start engine. After the en-

gine is running, move throttle control to slow position.

Dis en gage parking brake

ADD GASOLINE

• Fill fuel tank to bottom of filler neck. Do not overfill. Use

fresh, clean, regular un lead ed 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 quan ti ties that can

be used within 30 days to assure fuel freshness.

CAUTION: Wipe off any spilled oil or

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

GAS O LINE TO HELP INSURE GOOD COLD WEATHER

START ING.

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 tem per a ture.

AUTOMATIC TRANSMISSION WARM UP

• Before driving the unit in cold weather, the trans mis sion

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 for transmission 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.