Cobra MT270K Quick reference guide

    
                                
MT270K / LRH270K

CONTENTS
ENGINE PART.....................1-16
BRUSH CUTTER................17-27
POLE PRUNER..................28-39
HEDGE TRIMMER..............40-49
Attention Statements
Throughout this manual are special
attention statements.
DANGER!
DANGER!
A statement preceded by the triangular
attention symbol and the word
"WARNING"indicates a potentially
hazardous situation which, if not
avoided, COULD result in death or
serious injury!
CAUTION!
A statement preceded by the word
"CAUTION" contains information
that should be acted upon to avoid
damage to the machine.
IMPORTANT!
NOTE:
A statement preceded by the word
"IMPORTANT" is one that possesses
special significance.
A statement preceded by the word
"ONTE" contains information that is
handy to know and may make your job
easier.
A statement preceded by the triangular
attention symbol and the word
"DANGER"indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury!
1

DANGER!
Approaching or contacting electrical
lines with the trimmer could cause
death or serious injury. Keep the
trimmer at least 10meters away from
electrical lines or branches that
contact electrical lines.
Introduction
Long reach hedge trimmer 2600 is
designed and built to deliver superior
performance and reliability without
compromise to quality, comfort, safety or
durability.
IMPORTANT!
The information contained in these
instrucitions describes components
available at the time of publication.
While every attempt has been made to
provide the latest information about your
product, there may be some differences
between your attachment and
what is described here. We reserves
the right to make changes to products without
prior notice and without obligation to make
alterations to components
previously manufactured.
The procedures described in this manual
are intenaded to help you get the most
from your machine as well as to protect
you and others from harm.
these procedures are guidelines for safe
operation under most conditions, and are
not intended to replace any safety rules
and/or laws that may be in force in your
area.
If you have questions regarding your
power tool, or if you do not understand
someting in this manual, your local
dealer will be glad to assist you.
Safety Precautions
NOTE!
THE ARTICULATED HEDGE
TRIMMER IS NOT INSULATED
AGAINST ELECTRICAL SHOCK1
An articulated hedge trimmer has the potential
to do serious damage if misused, abused or
mishandled. To reduce the risk of injury, you
must maintain control at all times, and observe
all safety precautions during operation.
Never permit a person without training or
instruction to operate this machine!
For specific maintenance and safety
information about you long reach Hedge
trimmer T2600 Multipurpose Engine or
long reach pruner P2600 power head,
consult the owner's manual provided
with it. If it has been lost or misplace,
contact us for a replacement.
2

Operating Precautions
Never operate this tool or any
other power equipment if you are
tired, ill, or under the influence of
alcohol, drugs, or any substance
that could affect your ability or
judgement.
Keep bystanders at least 15 meters
(50 feet) away from the operating
trimmer to reduce the risk of being
struck by falling objects or thrown
debris.
Never cut off branches over your
head. The cut-off branches may
hit you and cause serious injury.
read and follow this manual,
make sure anyone using the
trimmer dose likewise. Failure
to do so could result in serious
personal injury or machine
failure. Keep this manual for
future reference.
Always wear a hard hat to reduce
the risk of head injuries during
operation of this machine.In
addition, always wear eye and
hearing protection. We
recommends wearing a face
shield as additional face and eye
protection.
Wear non-slip heavy-duty gloves
to improve your grip on the
trimmer handle. Wear sturdy
footwear with nonship soles to
proivide good footing. Steel-toes
safety boots are recommended.
Were snug-fitting clothes that also
permits freedom of movement.
3

Operating Precautions
Never permit a person without training
or instruction to operate this machine.
WARNING!
Always make sure the cutter
attachment is properly installed and
firmly tightened before operation.
Never use a cracked or warped cutter
or cutter bar: replace or repair before
use.
Before starting the engine, make sure
the cutter is clear of all objects.
Always stop the engine immedi-ately
and check for damage if you strike a
foreign object or if the machine
becomes tangled. do not operate with
broken or dama-ged equipment.
When cutting a branch that is under
tension, be alert for spring-back so that
you will not be struck by the moving
branch.
Stop the machine immediately if it
suddenly begins to vibrate or shake.
Inspect for broken, missing or
improperly installed parts or
attachments.
Never smoke or light fires near the
hedge trimmer. Keep the trimmer away
from excessive heat. Engine fuel is
very flammable and fire could lead to
serious personal injury or property
damage.-
Never operate this machine or other
power equiment if you are tired, ill, or
under the influence of alcohol, drugs,
or any other substance that could
affect your ability of judgement.
Do not operate the articulated hedge
trimmer with the muffler removed.
Make sure there is always good
ventilation when operating the
articulated hedge trimmer. Fumes from
engine exhaust can cause serious
injury or death. Never run the engine
indoors!
Make sure there are no missing or
loose fasteners, and that the stop
switch and throttle controls are working
properly
If a cutter should bind fast in a cut,
shut off the engine immediately. Push
the branch or tree to ease the bind and
free the cutter.
Make sure the cutters are correctly
adjusted before operating the
articulated hedge trimmer (see page
17 for cutter adjustment procedures).
Never attempt cutter adjustment with
the engine running!
Make sure of no fuel leaking from Fuel
tank, fuel cap, Fuel pipe and
carburetor and other parts which fuel
may leak. Repair the machine if fuel
leaking, make sure no leaking again.
4

Installing the Powerhead
CAUTION!
1.Place the powerhead on a clean, flat
surface, spark plug facing up.
2.Use the 4mm allen wrench to loosen
the tube clamp as shown in figure 4.
3.Slip off the protective covers from
two ends of bube.
Do not force the lower tube info
the powerhead! Excessive force
can damage the components.
4.Push the lower tube towards the tube
clamp and rotate it by hand to check
that the mainshaft splines engage the
powerhead, See Figure 5
5.Insert the lower tube into the tube
clamp until it bottoms and align the
positioning holes on the tube and
clamp, then install the screw.
6.Fasten the clamp securely with 2
clamp screws.
5

Connecting the Throttle Cable
1.Remove the air cleaner cover.
2.Connect the end of the throttle cable to
the joint on the top of the carburetor.
See Figure 6, figure 7.
Connecting switch wires
connect the switch wires between the
engine
and the main unit. Pair the wires
of the same color. See figure 8.
6

Adjusting the Throttle cable
1.Loosen the throttle cable nut at fan
cover as shown in figure 9.
figure 9
figure 10
figure 11
2.Adjust the throttle cable adjuster
nuts until you achieve a free play on
the throttle trigger of about 6mm.
See Figure 10.
When 6mm free play is achieved,
tighten the two 10mm throttle cable
nuts. When the throttle cable is
correctly adjusted, and the throttle
trigger is fully depressed (full
throttle), the throttle will contact the
stop on the throttle body. See Figure
11.
A dab of Never-Seez TM or equivalent
eases removal.
4.Replace the air cleaner cover.
7

Assembling the Tube Sections
1.Place the powerhead/lower tube
assembly and the upper tube
assembly on a clean, flat surfaceso
that both assemblise fit end to end.
The powerhead/lower tube assembly
should be facing up, and the upper
tube assembly should be positioned
with the latch Protector facing up.
Figure 12
Keep the open end of the tubes
clean and free of impurities!
CAUTION!
Figure 13
Figure 14
2.Loosen the couplerscrew.
3.Depress the latch and insert the
powerhead/lower tube assembly into
the coupler until it bottoms. Release
the latch. Rock the upper tube
assembly back and forth until you
are sure it snaps in place by the
coupler lock. See Figure 12.
4.When the two tube halves are locked
together, slide the latch protector
into groove of latch, then tighten the
coupler screw. See Figure 13.
Disassembling The Pole sections
1.With the pole pruner on a clean, flat
surface, loosen the coupler screw.
slide the latch protector out of groove
of latch.
2.Depress the latch. This release the
coupler lock. See Figure 14.
3.Pull the upper tube assembly out of
the coupler
8

WARNING!
This engine is to be operated on a 25:1
mixture consisting of unleaded
gasoline and 2-cycle mixing oil only.
Some gasolines contain alcohol as an
oxygenatel Oxygenated fuels may
cause increased operating
temperatures. Under certain conditions
alcohol-based fuels may also reduce
the lubricating qualities of some mixing
oils. Never use any fuel containing
more than 10% alcohol by volume!
When an oxygenated fuel must be
used, fuel containing an oxygenate
such as MTBE is to preferred over an
alcohol based fuel.
Generic oils and some outboard motor
oils may not be intended for use in
high-performance air cooled 2-cycle
engines, and should never be used in a
this engine!
Mixing Fuel
CAUTION!
Always minimize the risk of fire when
handling fuel!
Always allow the pruner to cool
before refueling!
Wipe all spilled fuel and move the
pruner at lease 3 meters (10 feet)
from the fueling point before
restarting!
Never smoke or light any fires near
the pruner or fuels!
Never place any flammable material
near the engine muffler!
Never operate the engine without
the muffler and spark arrestor in
place and properly functioning!
Never operate this machine if fuel
system components are damaged
or are leaking.
Use only fresh, clean unleaded galoline
with an octane rating of 87 or above.
Mix all fuel with 2-cycle Engine Oil at a
gasoline/oil ratio of 25:1.
Mix only enough fuel for your immediate
needs! If fuel must be stored longer than
30days, it should first be treated with a
TM
stabilizer such as StaBil
1.Place the pruner on a flat, level surface.
2.Clear any dirt or other debris from
around the fuel filler cap.
3.Remove the fuel cap, and fill the fuel
tank with clean, fresh fuel mixture.
4.Install and firmly tighten the fuel cap.
5.Wipe up any spilled fuel from the
powerhead before restarting.
IMPORTANT
9

Starting A Cold Engine-Restarting After Refueling
Control Positions (cold engine)
1.Set the throttle trigger to "Fast idle"
as follows (Figure 24):
figure 26
figure 27
figure 25
Engine ignition is controlled by a
twoposition START-STOP switch mounted
on the throttle body, typically labeled "I"
for START and "O" for STOP.
IMPORTANT
●Depress and hold the throttle
lockout lever.
●squeeze and hold the throttle
trigger.
●Depress the throttle lock button.
●While holding down the throttle
lock button, release the throttle
trigger and throttle lockout lever.
●Release the throttle lock button.
2.Slide the
ignition
switch to the
"I" (start)
Position. See
Figure 25.
3.Prime the engine by depressing the
carburetor primer bulb four or five
times, See Figure 26. You should be
able to see fuel inside the bulb.
4.Choke the engine by moving the
choke lever up to the "closed"
position. See Figure 27.
Control Positions (warm engine)
1.Set the throttle trigger to "fast idle"
(see Step 1 above).
2.Slide the ignition switch to the "I"
(START) position.
3.Moving the choke lever down to the
"open" position.
figure 24
10

Figure 28
Figure 29
Cranking The Engine
When starting the engine, make sure
the cutting attachment is well clear
of bystanders, pets or objects. The
attachment may rotate during startup.
WARNING!
CAUTION!
CAUTION!
Never operate the pole pruner unless
a cutting attachments is installed.
The recoil starter can be damaged
by abuse.
Always engage the starter before
attempting to crank the engine.
Never pull the starter cord to its
full length.
Always rewind the starter cord
slowly.
1.Place the unit firmly on the ground,
making sure it is stable and that the
cutting attachment is free and clear
of any bystanders or objects, Hold
onto the hand grip on the outer tube
with your left hand grasp the starter
rope handle with your right hand.
See Figure 28.
2.Pull the starter handle slowly until
you feel the starter engage.
3.Pull the starter handle quickly to
start the engine.
When The Engine Starts Or Fires
Open the choke by moving the choke
lever down. See Figure 29.
11

The cutting attachment will engage
and rotate as the engine starts and
accelerates.
WARNING!
If the engine did not continue to run,
repeat the appropriate cranking
procedure (warm or cold engine).
When the engine starts clear excess
fuel from the combustion chamber ty
revving the engine several times with
the throttle trigger (operating the
trigger will automatically disengage
the "fast idle" setting).
If The engine Fails To Start
Repeat the appropriate cranking
procedure (warm or cold engine). If
the engine fails to start after repeated
attempts, the engine is likely flooded.
Proceed to the following procedure.
Starting A Flooded Engine
1.Disconnect the spark plug lead, and
then use the spark plug wrench to
remove the spark lug (turn
counterclockwise to remove).See
Figure 30.
If the spark plug is fouled or soaked
with fuel, clean the lug as necessary.
Figure 30
Figure 31
2.Open the choke (Figure 31) and fully
depress the throttle trigger with your
left hand, then pull the starter handle
rapidly with your right hand to clear
excess fuel from the combustion
chamber.
CAUTION!
The cutting attachment can continue
rotating after the engine is switched
off!
WARNING!
Incorrect spark plug installation can
result in serious engine damage.
3.Reinstall the spark plug and tighten it
firmly. If a torque wrench is available,
torque the spark plug to 16.7-18.6
N.m.
4.Repeat the starting procedure for a
warm engine.
5.If the engine still fails to start, refer
to the troubles shooting section near
the end of the manual.
Stopping The Engine
1.Cool the
engine by
allowing it to
idle for two
or three
minutes.
2.Slide the
ignition
switch to the
"O" or STOP
position. See
Figure 31.
12

The cutting attachment must never
rotate at engine idle speed.
WARNING!
Adjusting The Carburetor
The engine must return to idle speed
whenever the throttle trigger is released.
Idle speed is adjustable and must be
set low enough to permit the engine
clutch to disengage the chain saw
when throttle trigger is released.
Check and Adjust Idle Speed
1.Start the engine and allow it to idle
two or three minutes, or until it
warms up.
If the cutting attachment rotates at
engine idle, reduce idle speed by
turning the idle adjusting screw
counter clockwise as necessary. See
Figure 32.
Use a tachometer, if one is available,
to set engine idle. Standard idle
speed is:
300±200rpm
IMPORTANT
Figure 32
NOTE
3.If the engine is stalling and won't
idle, increase idle speed by turning
the idle adjustment screw clockwise.
The mixture of the carburetor on this
unit cannot be adjusted.
Safety Operation
This machine is designed especially
for cutting branches.
Never use this machine for any other
purposes. Never try to cut stones,
metals, plastics or any other hard
objects.
Using for other purposes than cutting
branches may damage the machine or
cause serious injury.
Preparations
Wear suitable protective clothing
and equipment-see section "safety
Precautions".
Choose the best work position for
safety against the falling object
(Branch etc)
Start the engine.
Put on the strap.
Never stand directly underneath the
branch you are cutting-be wary of
falling branches. Note that a branch
may spring back at you after it hits the
ground.
Cutting sequence:
To allow branches a free fall, always
cut the lower branches first. Prune
heavy branches (Large diameter) in
several controllable pieces.
Working position:
Hold the control handle with your right
hand, and the shaft with your left hand.
Your left arm should be extended to
the most comfortable position.
The shaft should always be held at an
angle of 60°or less.
13

WARNING!
General maintenance
Before performing any maintenance,
repair, or cleaning work on the
machine, make sure the engine and
cutting attachment are completely
stopped. Disconnect the spark plug
wire before performing service or
maintenance work.
WARNING!
WARNING!
Muffler
Non-standard parts may not operate
properly with your unit and may cause
damage and lead to personal injury.
Operating the engine without a
muffler or with a muffler that is
damaged or improperly sufficiently to
lead to hearing loss．This machine must never be operated
with a faulty or missing spark arrestor or
muffler is well secured and in good
condition, A worn or damaged muffler is
a fire hazard and may also cause
hearing loss.
SPARK PLUG
Keep the spark plug and wire
connections tight and clean.
Daily maintenance
Prior to each work day, perform the
following:
Remove all dirt and debris from the
engine, check the cooling fins and air
cleaner for clogging, and clean as
necessary. see Figure 33.
Carefully remove any accumulating of
dirt or debris from the muffler and fuel tank first build－up in these areas can lead to engine overheating ， fire or premature wear．Check for loose or missing screws or
components. Make sure the cutting
attachment is free of debris and
securely fastened.
Check the entire machine for leaking
fuel or grease.
Make sure nuts, bolts and screws
(expect carburetor adjusting screws)
and tight.
Figure 33
14

Figure 34
Figure 35
Every 10 hours of operation:
(more frequently in dusty or dirty
conditions):
remove the air cleaner element from the
air cleaner housing and clean it
thoroughly with soap and water. Rinse
and dry thoroughly. Add a few drops of
oil and work it in, then reassemble the
element. See Figure 34.
CAUTION!
10-Hour Maintenance
Do not operate the machine if the air
cleaner or element is damaged, or if
the element is wet or water soaked.
CAUTION!
10/15-Hour Maintenance
Before removing the spark plug, clean
the area around the plug to prevent dirt
and dust from getting into the engine's
internal parts.
Every 10 to 15 hours of operation:
remove and clean the spark plug. See
Figure 35. Adjust the spark plug
electrode gap to 0.6~0.7mm
Replace the spark plug as necessary.
15

Specifications
Dry Weight
(Without Bar/Chain).......................5.9kg
Engine Type..................2-cycle, air-cooled,
vertical-cylinder
BorexStroke................................34x28 mm
3
Displacement................................25.4cm
-1
Engine speed at Idle......................3000min
-1
Maximum engine speed...............7500min
-1
Maximum Output............0.7kW@8500min
Fuel/Oil Ratio....................25:1 with 2-cycle
Engine Oil
Fuel Tank Capacity...........................600ml
Carburetor Type..................Diaphragm type
Ignition..........Flywheel magneto CDI system
Spark plug..........................................NGK
Air Filter........................................Semi-wet,
quick-remove/install
Starting Method..................................Recoil
Cooling System............................Forced air
Stopping Method.......................Slide swich
Transmission Type.....................Automatic,
centrifugal clutch with bevel gear
Oil Tank Capacity............................400ml
Gearcase Ratio..............................1.06:1
Standard Equipment.......................tool kit
containing a spark plug wrench,
4mm allen wrench and 8mm x
10mm spanner, strap, chain cover
phillips screwdriver
Sound Pressure Level*
Sound Power Level*
Vibration Level*
91 dB (A)
106 dB (A)
2
2.32/2.78 m/s
2
3.64/3.89 m/s
Idling (Front/Rear)
Racing (Front/Rear)
*Sound Pressure Level: in accordance with ISO 11680-1 (Annex B)
*Sound Power Level: in accordance with ISO 11680-1 (Annex B)
*Vibration Level: in accordance with ISO 11680-1 (Annex C)
16

17
BRUSH CUTTER
1.PARTS LOCATION
See figure 1
1.Air cleaner
2.Fuel tank
3.Clutch coupler system
4.Ignition switch
5.Throttle trigger
6.Hanger
7.handle A
8.Handle B
9.Handle C
10.Outer pipe
11Debris shield
12.Gearcase
13.Blade

2. Warning labels on the machine
(1) Read owner's manual before operation this machine
(2) Wear head, eye and ear protection
(3) Warning/attention
(4) Keep all children, bystanders and helpers 15 meters away from the brush cutter.
If warning seals peel off or become soiled and impossible to read, you should contact the
dealer from which you purchased the product to order new seals and offer the new seal in
the required location.
Never remodel your brush cutter.
We won't warrant the machine. If you use the remodeled brush cutter or you don't observe
the proper usage written in the manual.
3. Symbols on the machine
IMPORTANT
WARING
18

For safe operation and maintenance, symbols are carved in relief on
the machine. According to these indications please be carful not to t
ake mistake
(a)The port to refuel the "mix gasoline"
Position: fuel tank cap
(b)The direction to close the choke
Position:air cleaner cover
(c)The direction to open the choke
Position:air cleaner cover
4. Safety precautions
Before using the machine
A. Read the owner's manual carefully to understand how to operation
this unit properly.
B. This product has been designed for use in cutting grass, and it
should never be used for any other purpose.
C. You should never use the machine when under the influence of
alcohol, when suffering from exhaustion or lack of sleep when suffering
from drowsiness as a result of having taken cold medicine, or at any
other time when a a possibility exists that your judgment might be
impaired or that you might not be able to operate the brush cutter
properly and in a safe manner.
D. Avoid running the engine indoors. The exhaust gases contain
harmful carbon monoxide.
E. Never use your brush cutter under circumstance like those
described below.
1. When the ground is slippery or when other conditions exist which
might make it impossible to maintain a steady posture while using the
brush cutter.
2. At night at times of heavy fog. Or at any other time times when your
field or vision might be limited and it would be difficult to gain a clear
view of area.
3. During rain storms, during lightning storms at times of strong or gale-
force winds,or at any other times when weather condition might make it
unsafe to use this machine.
F. When using this machine fo the first time, before beginning actual
work learn to handle brush cutter from skilled workers.
G. Lack of sleep tiredness, or physical exhaustion result in lower attention spans.and
this in fact can lead to accident and injury.limit the amount of time which the bush cutter
is to be used continuously to somewhere around 30-40 minutes per session, and take
10-20 minutes of rest between work session. Also try to keep the total amount of work
performed in a single day under 2 hours or less.
H. Be sure to keep this manual handy so you might refer to it later or whenever the
questions arise.
19