Husqvarna 137 Instruction Manual page 14
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Also See for 137:
- Instruction manual (17 pages) ,
- Instruction manual (19 pages) ,
- Instruction manual (60 pages)
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Adjust speed until engine
runs without
chain
movement
(idle t oo fast) or stalling (idle t oo
stow).
• Turn i dle s peed screw ( T) c lockwise
toin-
crease engine speed.
• Turn i dle speed screw ( T) c ounterclock-
wise t odecrease
engine speed.If
you re-
quire further
assistance
or are unsure
about
performing
this procedure,
contact
your au-
thorized
service
dealer,
BAR
MAINTENANCE
If your saw cuts to one side, has to be forced
through the cut, or been run with an improper
amount
of bar lubrication
it may be neces-
sary to service your bar. A worn bar will dam-
age your chain and make cutting difficult.
After each use, ensure
ON/STOP
switch
is
in the STOP position, then clean all sawdust
from the guide bar and sprocket
hole.
To maintain
guide bar:
• Move ON/STOP
switch to the STOP posi-
tion.
• Loosen and remove chain brake nuts and
chain brake.
Remove
bar and chain from
saw.
• Clean
the oil holes and bar groove
after
each 5 hours of operation.
Remove Sawdust
From
_
1_
Guide Bang ro ov__
_'_
_
Holes
_, _''_
,.j..
• Burring
of guide
bar
rails
is a normal
process
of rail wear. Remove
these burrs
with a fiat file.
• When rail top is uneven,
use a flat file to re-
store square
edges and sides.
_(7_
File Rail Edges_
r] 17
I'1
and Sides
I U I
Square
I
I
Worn Groove
Correct
Groove
Replace guide bar when the groove is worn,
the guide bar is bent or cracked, or when exce-
ss heating or burring of the rails occurs. If re-
placement
is necessary, use only the guide bar
specified for your saw in ti_e repair parts list or
on the decal located on the chain saw.
CHAIN
SHARPENING
Chah_ sharpening
is a complicated
task that
requires
special
tools.
We recommended
you refer chain sharpening
to a professional
chain sharpener.
IGNITION
TIMING
Ignition timing is fixed and nonadjustable.
SPARK
PLUG
The spark
plug should
be replaced
each
year to ensure the engine starts
easier and
runs better.
1. Loosen
3 screws
on cylinder cover.
2.
Remove
the cylinder
cover.
3.
Pull off the spark plug boot.
4.
Remove
spark
plug from cylinder
and
discard.
5.
Replace
with Champion
RCJ-7Y
spark
plug nd tighten securely
with a 3/4 inch
(19 mm) socket wrench. Spark plug gap
should
be 0.025 inches (0.6 mm).
6.
Reinstall
the spark plug boot.
7.
Reinstall
the
cylinder
cover
and
3
screws.
Tighten securely.
Spark Plug Boot
STORAGE
_bWARNING:
Stop engine
and allow
to cool, and secure the unit before storing or
transporting
in a vehicle.
Store unit and fuel
in an area where
fuel vapors
cannot
reach
sparks
or open flames
from water
heaters,
electric
motors
or switches,
furnaces,
etc.
Store unitwith all guards in place. Position so
that any sharp
object
cannot
accidentally
cause injury to passersby.
Store the unit out
of reach of children.
• Before storing,
drain all fuel from the unit.
Start engine and allow to run until it stops.
• Clean the unit before storing.
Pay particu-
lar attention
to the air intake area, keeping
it free of debris. Use a mild detergent
and
sponge to clean the plastic surfaces.
• Do not store the unit or fuel in a closed area
where fuel vapors can reach sparks
or an
open flame from hot water heaters, electric
motors or switches,
furnaces,
etc.
• Store in a dry area out of the reach of chil-
dren.
CAUTION:
It is important
to prevent
gum
deposits
from forming
in essential
fuel sys-
tem parts such as the carburetor,
fuel filter,
fuel hose, or fuel tank during
storage.
Alco-
hol blended
fuels
(called gasohol
or using
ethanol
or methanol)
can attract
moisture
which
leads to fuel mixture
separation
and
formation
of acids during storage.
Acidic gas
can damage
the engine.
14
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