John Deere ST0521M ユーザーズマニュアル

ページ / 44
OPERATION
14
MTF-031039C
BEFORE STARTING THE ENGINE
1.
Before you service or start the engine, familiarize your-
self with the snow thrower.  Be sure you understand the
function and location of all controls.
2.
Be sure that all fasteners are tight.
3.
Before starting the engine, make sure all controls oper-
ate correctly.
HOW TO STOP THE ENGINE
To stop the engine, move the ignition key to the stop position.
HOW TO START THE ENGINE
The following starting instructions include directions for  both
Recoil Start and Electric Start engines. For models that are
Recoil Start only, disregard the Electric Start information.
 Electric Start models are equipped with a 120 volt AC elec-
tric starter and also a recoil starter.  Before starting the en-
gine, make certain that you have read the following
information.
The starter is designed to operate on 120 volt A.C.
household current.  Carefully follow all instruc-
tions in the “How To Start The Engine” section.
 To connect a 120 volt A.C. power cord, always connect
the power cord to the switch box on the engine first.
Then, plug the other end into the  receptacle.  When dis-
connecting the power cord, always unplug the end from
the receptacle first.
HOW TO START A COLD ENGINE
1.
Fill the fuel tank with a fresh, clean fuel mixture. See
“How To Mix The Fuel Mixture”.
2.
Move the choke control to FULL position.
3.
Make sure the auger drive lever is in the disengaged
(released) position.
4.
Insert the ignition key and turn to the ON position.
5.
Move the choke control to the full choke position.
6.
(Electric Start) Connect the power cord to the switch
box 
located on the engine.
7.
(Electric Start) Plug the other end of the power cord into
a 120 VOLT, A.C. receptacle. (See the WARNING in this
section).
8.
Push the primer button while covering the vent hole as
follows: Remove finger from primer button between
primes.
S
Do not prime if temperature above 50
°
 F (10
°
 C).
S
Push twice if temperature is 50
°
 F (10
°
 C) to 
15
°
F (-10
°
 C).
S
Push four times if temperature is below 15
°
 F (-10
°
 C).
S
Push five time if temperature is below 0
°
 F (-18
°
 C).
9.
(Electric Start) Push on the electric start button until
the engine starts. Do not crank for more than 10 seconds
at a time. The electric starter is thermally protected. If the
electric starter overheates, it will automatically stop and
can only be restarted when it has cooled to a safe tem-
perature. A wait of about 5 to 10 minutes is required to
allow the electric starter to cool.
10. (Recoil Start) Rapidly pull the recoil starter handle. Do
not allow the recoil starter handle to snap back. Slowly
return the recoil starter handle.
11. If the engine does not start in 5 or 6 tries, See the “Trouble
Shooting Chart” Instructions.
12. (Electric Start) When the engine starts, release the
electric start button.
13. (Electric Start) First disconnect the power cord from the
 receptacle. Then, disconnect the power cord from the
switch box.
14.  As the engine warms up, move the choke control to 1/2
choke position. When the engine runs smoothly, move
the choke control to the off position.
NOTE:  Allow the engine to warm up for several minutes
before blowing snow in temperatures below 0
5
F.
WARM START
If restarting a warm engine after a short shutdown, leave
choke at “OFF” and do not push the primer button.  If the en-
gine fails to start, follow the Cold Start instructions.
WARNING: Never run engine indoors or in en-
closed, poorly ventilated areas.  Engine exhaust
contains CARBON MONOXIDE, AN ODORLESS
AND DEADLY GAS.  Keep hands, feet, hair and loose
clothing away from any moving parts o
n  engine and
snow thrower.  
The temperature of muffler and nearby areas may ex-
ceed 150
5
F.  Avoid these areas.
DO NOT allow children or young teenagers to operate
or be near snow thrower while it is operating.