North American 6595 Operating instructions
8806595 10/12
18 INCH CHAINSAW
CALIFORNIA PROPOSITION 65
WARNING: You can create dust
when you cut, sand, drill or grind
materials such as wood, paint,
metal, concrete, cement, or other
masonry. This dust often contains
chemicals known to cause cancer,
birth defects, or other
reproductive harm. Wear
protective gear.
WARNING: This product or its
power cord may contain
chemicals, including lead, known
to the State of California to cause
cancer and birth defects or other
reproductive harm. Wash hands
after handling.
Important!
When using equipment, a few safety
precautions must be observed to
avoid injuries and damage. Please
read the complete operating manual
with due care. Keep this manual in a
safe place, so that the information is
available at all times. If you give the
equipment to any other person, give
them these operating instructions as
well. We accept no liability for
damage or accidents which arise due
to non-observance of these
instructions and the safety
information herein.
SPECIFICATIONS
Engine Displacement: 45.1 cc
Max. Engine Capacity: 2000W
Bar Length: 18 inch.
Idling Speed: 3000 RPMs
Max. Speed with Cutting
Equipment: 10,000 RPMs
Anti-Vibration Function
Chain Brake
Auto Chain Lubrication
CAUTION:
FOR YOUR OWN SAFETY READ
INSTRUCTION MANUAL
COMPLETELY AND CAREFULLY
BEFORE OPERATING THIS
CHAINSAW.
Any failures made in following the
safety regulations and and
instructions may result in an
electric shock, fire and/or serious
injury.
SAFETY INSTRUCTIONS
Only allow users who have read and
understand this manual operate this
chainsaw.
Wear protective gear, such as steel-
toed footwear, snugly fitting clothing,
heavy duty gloves, eye protection
(goggles or face screen), hard hat
and ear protection (ear plugs or
mufflers). Do not wear jewelry and
pull long hair back.
Keep all body parts clear of the chain
while the engine is running.
Do not allow other people or animals
near the saw when it is running,
starting, or being operated.
You must be mentally alert and in
good physical condition when
operating a chainsaw because the
work is strenuous
Carefully plan your sawing project
before starting. Do not begin until
you are sure the work area is clean,
you have secure footing and if you
are felling trees, that you have a
planned and clear retreat path.
DO NOT RETURN TO STORE. Please CALL 800-348-5004 for parts and service.
For Customer Service, please call 1-800-348-5004 or email feedback@natitools.com
Model: 6595
2
KICKBACK
WARNING: Kickback is the
backward, upward or sudden
movement of the guide bar that
occurs when the guide bar contacts
an object or when the wood closes in
and pinches the saw in the cut. The
saw contacting a foreign object in the
wood can also result in a loss of
control.
Rotational kickback occurs when
the moving chain contacts an object
with the upper tip of the guide bar.
This can cause the chain to dig into
the object, which then stops the
chain for a moment. The result is a
reverse reaction, which kicks the
guide bar up and back towards the
operator.
Pinch kickback occurs when the
woods closes in on the moving chain
along the top of the guide bar. The
sudden stop of the chain results in
the saw to move in the opposite
direction of the rotation and the saw
is driven straight back towards the
operator.
Pull in occurs when the moving
chain comes in contact with a foreign
object in the wood along the bottom
of the guide bar. This sudden stop
pulls the saw forward and away from
the operator and could possibly
cause the operator to lose control of
the saw.
Avoiding Kickback
Be aware of situations or objects that
can cause the material to pinch the
top of or stop the chain.
Do not cut more than one log at a
time.
Do not twist the saw when the bar is
withdrawn from an undercut.
Always begin cutting with the engine
at full speed and with the saw
housing resting against the wood.
Use wedges made of plastic or
wood to hold the cut open. Never
use metal.
Stay alert. Realize kickback can
occur and keep the cutting area free
from foreign objects.
Keep your chain properly tensioned
and sharp, along with properly
maintaining the chainsaw. Failure to
do so can increase the chance of
kickback occurring.
Begin and continue the cut with the
engine running at full speed. Use
caution while re-entering a previous
cut. Do not attempt a plunge cut
(starting a cut with the tip of the
blade).
Maintaining Control of the
Chainsaw
Stand to the left of the saw. Keep
your elbow locked and a firm grip on
the saw.
Keep the thumb on the underside of
the handlebar. Never reverse hand
positions (left hand on handlebar
and right hand on the rear handle).
Stand slightly to the left side of the
saw to keep your body from being in
a straight line with the saw. Stand
with your weight evenly balanced
between both feet.
Do not overreach because you could
be thrown off balance and lose
control of the saw. Do not cut above
shoulder height because it is difficult
to maintain proper control of the saw
at that height.
Chain Brake
The chain brake is designed to stop
the chain from rotating in the event
of a kickback.
WARNING: DO NOT RELY UPON
THE CHAIN BRAKE (OR OTHER
SAFETY FEATURES) TO
PROTECT YOU IN THE EVENT OF
A KICKBACK. Use your chainsaw
properly and under the correct
circumstances to avoid kickback.
ASSEMBLY
Wear protective gloves at all times
during assembly due to the handling
of sharp objects.
Attaching the Bumper Spike
The bumper spike may be used as a
pivot when making a cut.
1) Loosen and remove the bar knob
completely by loosening the two
nuts.
2) Remove the clutch cover.
3) Attach the bumper spike with the
two screws with the spikes pointing
downward.
Attaching the Bar and Chain
1) Make sure the saw bottom is
resting on a flat surface. Be sure the
chain brake is pulled back. (Figure1)
Loosen and remove the bar knob
completely by removing the two
nuts. (Figure 2)
Figure 1
Figure 2
2) Remove the clutch cover.
(Figure 3)
3) Slide the guide bar on the bar
bolts until the guide bar rests against
the clutch drum sprocket. (Figure 4)
4) Hold the chain with the drive links
as shown. The drive links should be
facing inward with the cutters facing
to the right, or direction of rotation.
(Figure 5)
5) Fit the drive links in the clutch
drum sprocket. (Figure 6)
Figure 6
6) Place the chain drive links into the
bar groove.
7) Pull the guide bar forward to
make sure all of the drive links are in
the bar groove.
8) Reinstall the clutch cover. (Figure
3) Make sure the adjusting pin is
aligned with the hole in the guide
bar.
CAUTION: Make sure the
adjustment pin aligns with the hole.
Failure to align the pin and install the
cover properly may result in
damage, possibly permanent, to
your saw.
ADJUSTING CHAIN TENSION
Before adjusting, make sure the bar
knobs are loosened 1 ½- 2 turns.
Adjusting the chain tension with the
knobs tight can cause damage.
Checking the Chain Tension
Check the chain tension by using a
screwdriver tomove the chain along
the bar. If it does not rotate, it is too
tight. If it sags below the bar, it is too
loose.
Adjusting the Chain Tension
The chain stretches slightly during
each use, especially the first few
times the saw is used. Always check
the chain tension each time the saw
is used and refueled.
1) Make sure the bar knobs are
loosened 1-1/2 –2 turns.
2) Using a screwdriver, adjust the
tension of the chain. The adjusting
pin is located right below the two bar
knobs.
3
3) Turn the screw to the right to
increase the tension and turn it to
the left to release tension.
4) Using a screwdriver, move the
chain around on the guide bar to
make sure all of the links are in the
bar groove. If the chain does not
rotate, it is too tight and the adjuster
needs to be loosened.
5) Tighten the bar knob securely
after the tension is adjusted.
FUELING AND LUBRICATION
Use regular grade unleaded
gasoline mixed with 40:1 2-cycle
engine oil. Do not use a fuel mixture
that has been stored for more than
90 days.
The bar and chain require constant
lubrication in order to function
properly. Lubrication is provided by
the oiler system. Lack of oil will
cause damage to the bar and chain.
Smoke coming from the chain and
discoloration on the bar are signs
the oil is low.
Fueling Safety Instructions
1) Do not smoke while fueling or
operating the saw.
2) Do not allow sparks or flame in
the area where the fuel is poured or
mixed. Always allow the engine to
cool before refueling.
3) When refueling, turn the engine
off and let it fuel in a non-
combustible area. Slowly remove
the fuel cap and refuel the saw.
4) Mix and pour the fuel in a well-
ventilated outdoor area. Store the
fuel in a cool, dry place. Wipe up
fuel spills before attempting to start
the saw.
5) Start the engine at least 10 feet
from the fueling site
Figure 3
Figure 4
Figure 5
Figure 7
4
6) Store the saw and fuel in an area
where sparks or open flame will not
reach it.
OPERATING INSTRUCTIONS
Warning: The chain must not move
when the engine is running at an idle
speed. If the chain moves, the
carburetor must be adjusted. Avoid
contact with the muffler because a
hot muffler can cause serious burns
or injury.
Operation Safety Instructions
1) Do not operate a chainsaw with
one hand.
2) Only operate the chainsaw in a
well-ventilated, outdoor area.
3) Make sure that the chainsaw will
not come into contact with any object
while starting the engine. Do not start
the saw when the guide
bar is in the middle of a cut.
4) Do not apply pressure to the saw
at the end of a cut. It can cause you
to lose control of the saw when the
cut is complete.
5) Make sure the engine is stopped
before setting down the saw.
6) Make sure your chainsaw is in
good condition before operating. Do
not operate a saw that is damaged,
improperly adjusted, or not
completely and securely assembled.
7) Do not carry the saw with the
engine running. Carry the saw with
the engine stopped and the muffler
pointing away from you, with the
guide bar and chain facing behind
you. The chain should be covered
with a bar cover to ensure the blade
will not cause harm.
8) Do not run while operating the
chainsaw.
Starting A Cold Engine
Hold the saw firmly against the
ground and make sure the chain is
free to move without contacting any
object.
1) Move the ON/OFF switch to the
ON position.
2) Pull the choke lever out to its full
extent.
3) Pull the starter rope quickly with
your right hand a maximum of 5
times. If the engine sounds as
though it is trying to start before the
5th pull, do not pull any more and
immediately go to the next step.
4) Push the choke lever fully in.
5) Pull the starter rope quickly with
your right hand until the engine
starts.
6) Allow the engine to run for
approximately 30 seconds before
squeezing and releasing the throttle
trigger, which will allow the engine to
return to idle speed.
Starting a Warm Engine
1) Place the ON/OFF switch into the
ON position.
2) Push the choke lever full in.
3) Pull on the starter rope quickly
with your right hand until the engine
starts.
4) After the engine starts, squeeze
and release the throttle trigger, this
will allow the engine to return to idle
speed.
Flooded Engine
If your engine does not start after 10
pulls, it may be flooded. It can be
cleared of the excess fuel by
following the warm engine starting
process. Make sure the
ON/OFF switch is in the ON
position. The amount of flooding in
the engine will determine how many
pulls are necessary for it to start.
Checking the Chain Brake
The chain brake should be checked
several times during use. The
engine needs to be running while
this is done and it is the only time
the saw should be set on the ground
with the engine running.
1) Place the saw on the ground.
2) Grasp the rear handle with your
right hand and the front with your
left.
3) Apply the full throttle with your
right hand.
4) Activate the chain brake by
turning your left wrist against the
hand guard without letting go of the
front handle.
The chain should stop immediately.
If the chain brake fails to activate,
take the saw to an authorized dealer
to have the chain brake replaced or
repaired.
CUTTING METHOD
INSTRUCTIONS
Safety Instructions
Check the chain tension before
using the saw for the first time and
after 1 minute of operation
Do not cut any material other than
wood. Do not cut metal, plastic,
masonry, non-wood building
materials, etc.
If the chain strikes a foreign object,
stop the saw and inspect the chain
for damage. If damage is present,
repair or replace the necessary
parts.
Keep the saw clear of dirt or sand
because even a small amount could
dull the blade and possibly cause
kickback.
Before starting a major project,
practice cutting a few logs.
5
Important Operation Reminders
Allow the engine to reach full speed
before cutting.
Begin cutting with the saw frame
resting against the log.
Keep the engine at full speed the
entire time you are cutting.
Allow the chain to do the work for
you. Do not apply excess pressure.
Forcing the cut may cause damage
to the engine, bar and/or chain.
When the cut is complete, release
the trigger and allow the engine to
return to idle. Running the saw at full
throttle without cutting can cause
wear to the chainsaw.
Do not put pressure on the saw at
the end of a cut in order to maintain
control of the saw.
Stop the engine before setting down
the saw.
Tree Felling
WARNING: Do not cut near buildings
or electrical wires if the direction of
the fall is uncertain. Check for broken
or dead branches, which could fall
while cutting. Do not cut at night or
during bad weather. If the tree falls
onto a utility line, notify the utility
company immediately.
Plan your sawing operation in
advance. Clear the work area in
order to have a secure footing.
Evaluate the natural conditions that
could affect the direction of the fall
such as wind, lean of the tree, weight
and branches on one side,
surrounding trees, decay and rot.
Make sure the tree has enough room
to fall. Keep a distance of at least 2
½tree lengths from the nearest
person or object because engine
noises or the tree falling can drown
out warning calls.
Remove all foreign objects from the
tree where the cuts are going to be
made. Plan a clear retreat path that
is diagonally back from the line
of the fall.
Felling Large Trees (6 in. or larger
in diameter)
A notch is cut into the side of the
tree in the desired falling direction.
After a felling cut is made, the tree
will tend to fall into the notch.
Note: If the tree has large buttress
roots, remove them before making
the notch into the tree. If you use a
chainsaw to remove the roots, keep
the chain from contacting the ground
to prevent the chain from dulling.
1) Make the notch by cutting the top
of the notch first. Cut through 1/3 of
the diameter of the tree. Complete
the notch by cutting the bottom of
the notch. Remove the notch of
wood from the tree once the notch is
cut.
2) After removing the wood, make
the felling cut on the opposite side of
the notch. Make a cut about two
inches higher than the center of the
notch. This will leave a hinge
between the felling cut and the
notch. The hinge will help prevent
the tree from falling in the wrong
direction. It also helps hold the tree
on the stump and control the fall.
Before the felling cut is complete,
use wedges, if necessary, to open
the cut and control the direction of
the fall. Use wood or plastic wedges
to avoid kickback and chain
damage. Never use steel or iron
wedges.
Be alert to signs that the tree is
about to fall, such as cracking
sounds, widening of the felling cut,
or movement in the branches.
As the tree begins to fall, stop and
put down the saw and quickly get
away on your planned retreat path.
Do not cut down a partially fallen
tree. Be cautious when working
around partially fallen trees because
they may be poorly supported. If a
tree does not fall completely, put the
saw aside and pull down the tree
with a cable winch, block and tackle
or a tractor.
Cutting A Fallen Tree (Bucking)
WARNING: DO NOT stand on the
log that is being cut. If the log rolls, it
can cause loss of footing and
control. Do not stand downhill of the
log being cut.
Only cut one log at a time.
Cut shattered wood carefully. Sharp
pieces of wood could possibly be
thrown back towards the operator.
Never allow another person to hold
a small log for cutting, or use your
leg or foot to hold it. Use a sawhorse
to cut small logs.
Do not cut in an area where logs,
roots and limbs are tangled. Drag
the logs into a clear area before
cutting.
Types of Cutting for Bucking
WARNING: If a saw becomes
pinched in a log, do not try to force it
out. It is possible to lose control of
the saw which can result in injury
and/or damage to yourself or the
saw. Stop the saw and drive a
plastic or wood wedge into the cut
until the saw can be removed.
Restart the saw and re-enter the cut.
Using a metal wedge can cause
kickback and chain damage. Do not
attempt to restart your saw when it is
pinched in a log.
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