Husqvarna 137 Instruction Manual page 4

• Do not put pressure on the saw atthe end
ofthe cut. Applying pressure can cause
you tolose c ontrol when the cut i scom-
pleted.
• Stop t he engine before setting the saw
down.
• Do not operate achain saw that i sdam-
aged, improperly adjusted, ornot c om-
pieteiy and securely assembled. Always
replace bar, chain, hand g uard, orchain
brake immediately ifitbecomes damaged,
broken orisotherwise removed.
• With t he engine stopped, hand c arry the
chain saw with t he muffler away from your
body, and t he guide bar a nd c hain tothe
rear, preferably covered with a scabbard.
MAINTAIN YOUR S AW INGOOD
WORKING ORDER
• Have a_l chain saw service performed by a
qualified service dealer with t he e xception
of t he items listed in the maintenance sec-
tionofthis manual. Forexample, ifimprop-
er toots are used toremove or hold t he fly-
wheel when servicing the c lutch, structural
damage tothe flywheel can occur and
cause the flywheel toburst.
• Make certain the saw chain stops moving
when the throttle trigger isreleased. For
correction, refer toCARBURETOR AD-
JUSTMENTS.
• Never modify your saw inany w ay.
• Keep the handles dry, clean, and f ree o foil
or fuel mixture.
• Keep fuel and o il c aps, screws, and f as-
teners securely tightened.
• Use only H usqvarna_) accessories and
replacement parts as recommended.
HANDLE FUEL WITH CAUTION
• Do not smoke while handling fuel or while
operating the saw.
• Eliminate all sources of sparks or flame in
the areas where fuel is mixed or poured.
There should be no smoking, open flames,
or work that could cause sparks. Allow en-
gine to coot before refueling.
• Mix and pour fuel in an outdoor area on
bare ground; store fuel in a cool, dry, well
ventilated place; and use an approved,
marked container for all fuel purposes.
Wipe up all fuel spills before starting saw.
• Move at least 10 feet (3 meters) from fueF
ing site before starting engine.
• Turn the engine off and let saw cool in a
non-combustible area, not on dry leaves,
straw, paper, etc. Slowly remove fuel cap
and refuel unit.
• Store the unit and fuel in an area where fuel
vapors cannot reach sparks or open
flames from water heaters, electric motors
or switches, furnaces, etc.
KICKBACK
_WARNING:
Avoid kickback which
can result in serious injury. Kickback is the
backward, upward or sudden forward motion
of the guide bar occurring when the saw
chain near the upper tip of the guide bar con-
tacts any object such as a log or branch, or
when the wood closes in and pinches the
saw chain in the cut. Contacting a foreign ob-
ject in the wood can also result in loss of
chain saw control
• Rotational Kickback can occur when the
moving chain contacts an object at the up-
per tip of the guide bar. This contact can
cause the chain to dig into the object,
which stops the chain for an instant. The
result is a lightning fast, reverse reaction
which kicks the guide bar up and back to-
ward the operator.
• Pinch-Kickback can occur when the the
wood closes in and pinches the moving
saw chain in the cut along the top of the
guide bar and the saw chain is suddenly
stopped. This sudden stopping of the
chain results in a reversal of the chain
force used to cut wood and causes the
saw to move in the opposite direction of the
chain rotation. The saw is driven straight
back toward the operator.
• Pull-In can occur when the moving chain
contacts a foreign object in the wood in the
cut along the bottom of the guide bar and
the saw chain is suddenly stopped. This
sudden stopping pulis the saw forward and
away from the operator and could easily
cause the operator to lose control of the
saw.
Avoid Pinch-Kickback:
• Be extremely aware of situations or ob-
structions that can cause material to pinch
the top of or otherwise stop the chain,
• Do not cut more than one log at a time.
• Do not twist the saw as the bar is with-
drawn from an undercut when bucking.
Avoid Pull-In:
• Always begin cutting with the engine at full
speed and the saw housing against wood.
• Use wedges made of piastic or wood.
Never use metal to hold the cut open.
Kickback Path
Avoid Obstructions
ClearThe Working Area
REDUCE THE CHANCE OF
KICKBACK
• Recognize that kickback can happen.
With a basic understanding of kickback,
you can reduce the element of surprise
which contributes to accidents.
• Never let the moving chain contact any ob-
ject at the tip of the guide bar.
• Keep the working area free from obstruc-
tions such as other trees, branches, rocks,