Yard-Man 31AE993J401 Benutzerhandbuch

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To Stop Engine
Run engine for a few minutes before stopping to 
help dry off any moisture on the engine.
To help prevent possible freeze-up of starter, 
proceed as follows.
Electric Starter:
Connect power cord to switch box on engine, then 
to 120 volt AC receptacle. With the engine running, 
push starter button and spin the starter for several 
seconds. The unusual sound made by spinning the 
starter will not harm engine or starter. Disconnect 
the power cord from receptacle first, and then from 
switch box.
Recoil Starter
With engine running, pull starter rope with a rapid, 
continuous full arm stroke three or four times. 
Pulling the starter rope will produce a loud clattering 
sound, which is not harmful to the engine or starter.
Move throttle control to “stop” or “off” position.
Remove ignition key. Do not turn key. Disconnect 
the spark plug wire from the spark plug to prevent 
accidental starting while equipment is unattended.
NOTE: 
Keep it in a safe place. Engine will not start
without ignition key.
Wipe all snow and moisture from the carburetor cover 
in the area of the control levers. Also, move control 
levers back and forth several times.
To Engage Wheel Drive
With the engine running near top speed, move the 
shift lever into one of the six FORWARD positions 
or two REVERSE positions. Select a speed 
appropriate for the snow conditions that exist. 
NOTE: 
Use slower speeds in higher snow, and until
you are familiar with the operation of the snow thrower.
Squeeze the traction control against the right 
handle and the snow thrower will move. Release it 
and the drive motion will stop.
IMPORTANT:
 NEVER move the shift lever without first 
releasing the traction control. Doing so will cause 
premature wear to the drive system’s friction wheel.
To Engage Augers
To engage the augers and start the snow throwing 
action, proceed as follows:
Squeeze the auger control against the left handle.
To disengage power to the augers:
Release both the auger control and the traction 
control, if engaged. 
The auger control can be locked so you can turn the 
electric chute directional control without interrupting the 
snow throwing process.
Operating Tips
NOTE: 
Allow the engine to warm up for a few minutes.
The engine will not develop full power until it reaches
operating temperature.
WARNING: 
The temperature of the muf-
fler and the surrounding areas may
exceed 150
°
F. Avoid these areas.
For the most efficient snow removal, remove snow 
immediately after it falls.
Discharge the snow downwind whenever possible. 
Slightly overlap each previous path.
Set the skid shoes 1/4" below the shave plate for 
normal usage. The skid shoes may be adjusted 
upward (to lower the shave plate) for hard-packed 
snow. Adjust downward (to raise the shave plate) 
when using on gravel or crushed rock.
SECTION 5:  MAKING ADJUSTMENTS
WARNING: 
NEVER attempt to clean
chute or make any adjustments while
engine is running.
Traction Control
Refer to the information found under Final Adjustment 
in the Assembly Section to adjust the traction control. If 
you are uncertain that you have reached the correct 
adjustment, proceed as follows:
WARNING: 
Drain the gasoline out of
your snow thrower’s engine, and place a
piece of plastic film under the gas cap to
avoid spillage before beginning the job.
Tip the snow thrower forward, allowing it to rest on 
the auger housing.
Remove the frame cover underneath the snow 
thrower by removing six self-tapping screws.
With the traction control released, make sure there 
is clearance between the friction wheel and the 
drive plate in all positions of the shift lever. 
With the traction control lever engaged, make sure 
the friction wheel solidly contacts the drive plate. 
See Figure 10.
If adjustment is necessary, adjust traction control as 
instructed below: