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Stihl HT 56 C User manual

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{
STIHL HT 56 C
Warning!
Read and follow all safety
precautions in Instruction Manual –
improper use can cause serious or
fatal injury.
Advertencia!
Lea y siga todas las precauciones
de seguridad dadas en el manual
de instrucciones – el uso incorrecto
puede causar lesiones graves o
mortales.
Instruction Manual
Manual de instrucciones
Instruction Manual
1 - 47
Manual de
instrucciones
49 - 101
Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2011
0458-555-8621-A. M2.F11.PM.
0000002629_004_GB
HT 56 C
English
1
{
Contents
Allow only persons who fully understand
this manual to operate your pole pruner.
To receive maximum performance and
satisfaction from your STIHL pole
pruner, it is important that you read,
understand and follow the safety
precautions and the operating and
maintenance instructions in chapter
"Safety Precautions and Working
Techniques" before using your pole
pruner. For further information you can
go to www.stihlusa.com.
Contact your STIHL dealer or the STIHL
distributor for your area if you do not
understand any of the instructions in this
manual.
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 3
Using the Unit 14
Assembling the Unit 16
Cutting Attachment 17
Mounting the Bar and Chain 17
Tensioning the Chain 18
Checking Chain Tension 18
Fuel 19
Fueling 20
Chain Lubricant 22
Filling Chain Oil Tank 22
Checking Chain Lubrication 23
Fitting the Harness 23
Starting / Stopping the Engine 24
Transporting the Unit 25
Operating Instructions 26
Taking Care of the Guide Bar 27
Cleaning the Air Filter 28
Adjusting the Carburetor 28
Spark Plug 29
Rewind Starter 31
Storing the Machine 31
Checking and Replacing the Chain
Sprocket 31
Maintaining and Sharpening the
Saw Chain 32
Inspections and Maintenance by
Dealer 36
Maintenance and Care 37
Main Parts 39
Specifications 41
Special Accessories 42
Maintenance and Repairs 42
STIHL Incorporated Federal
Emission Control Warranty
Statement 42
STIHL Incorporated California
Exhaust and Evaporative
Emissions Control Warranty
Statement 44
Trademarks 46
Warning!
Because a pole pruner is a high-speed,
fast-cutting power tool with a very long
reach, special safety precautions must
be observed to reduce the risk of per-
sonal injury. Careless or improper use
may cause serious or even fatal injury.
HT 56 C
English
2
Pictograms
The meanings of the pictograms
attached to or embossed on the
machine are explained in this manual.
Depending on the model concerned, the
following pictograms may be on your
machine.
Symbols in Text
Many operating and safety instructions
are supported by illustrations.
The individual steps or procedures
described in the manual may be marked
in different ways:
NA bullet marks a step or procedure.
A description of a step or procedure that
refers directly to an illustration may
contain item numbers that appear in the
illustration. Example:
NLoosen the screw (1).
NLever (2) ...
In addition to the operating instructions,
this manual may contain paragraphs
that require your special attention. Such
paragraphs are marked with the
symbols and signal words described
below:
Engineering Improvements
STIHL’s philosophy is to continually
improve all of its products. As a result,
engineering changes and improvements
are made from time to time. Therefore,
some changes, modifications and
improvements may not be covered in
this manual. If the operating
characteristics or the appearance of
your machine differs from those
described in this manual, please contact
your STIHL dealer for assistance.
Guide to Using this Manual
Fuel tank for gasoline
and engine oil mixture
Tank for bar and chain oil
Direction of chain rotation
Press to operate manual
fuel pump
Manual fuel pump
Danger!
Indicates an imminent risk of severe or
fatal injury.
Warning!
Indicates a hazardous situation which, if
not avoided, could result in severe or
fatal injury.
Caution!
Indicates a risk of property damage,
including damage to the machine or its
individual components.
HT 56 C
English
3
Have your STIHL dealer show you how
to operate your power tool. Observe all
applicable local safety regulations,
standards and ordinances.
Do not cut any material other than wood
or wooden objects. Use your pole pruner
for limbing only.
Most of these safety precautions and
warnings apply to the use of all STIHL
pole pruners. Different models may have
different parts and controls. See the
appropriate section of your instruction
manual for a description of the controls
and the function of the parts of your
model.
Safe use of a pole pruner involves
1. the operator
2. the pole pruner
3. the use of the pole pruner.
THE OPERATOR
Physical Condition
You must be in good physical condition
and mental health and not under the
influence of any substance (drugs,
alcohol, etc.) which might impair vision,
dexterity or judgment. Do not operate
this machine when you are fatigued.
These conditions reduce the hand's
ability to feel and regulate temperature,
produce numbness and burning
sensations and may cause nerve and
circulation damage and tissue necrosis.
All factors which contribute to
whitefinger disease are not known, but
cold weather, smoking and diseases or
physical conditions that affect blood
vessels and blood transport, as well as
high vibration levels and long periods of
exposure to vibration are mentioned as
factors in the development of whitefinger
Safety Precautions and
Working Techniques
Because a pole pruner is
a high-speed, fast-cut-
ting power tool with a
very long reach, special
safety precautions must
be observed to reduce
the risk of personal injury.
It is important that you
read, fully understand
and observe the following
safety precautions and
warnings. Read the
instruction manual and
the safety precautions
periodically. Careless or
improper use may cause
serious or fatal injury.
Warning!
Do not lend or rent your power tool with-
out the instruction manual. Be sure that
anyone using it understands the infor-
mation contained in this manual.
Warning!
The use of this machine may be hazard-
ous. The pole pruner chain has many
sharp cutters. If the cutters contact your
flesh, they will cut you, even if the chain
is not moving.
Warning!
Do not use it for other purposes, since
misuse may result in personal injury or
property damage, including damage to
the machine.
Warning!
Minors should never be allowed to use
this power tool. Bystanders, especially
children, and animals should not be
allowed in the area where it is in use.
Warning!
To reduce the risk of injury to bystand-
ers and damage to property, never let
your power tool run unattended. When it
is not in use (e. g. during a work break),
shut it off and make sure that unauthor-
ized persons do not use it.
Warning!
Be alert – if you get tired, take a break.
Tiredness may result in loss of control.
Working with any power tool can be
strenuous. If you have any condition
that might be aggravated by strenuous
work, check with your doctor before
operating this machine.
Warning!
Prolonged use of a power tool (or other
machines) exposing the operator to
vibrations may produce whitefinger dis-
ease (Raynaud's phenomenon) or
carpal tunnel syndrome.
HT 56 C
English
4
disease. In order to reduce the risk of
whitefinger disease and carpal tunnel
syndrome, please note the following:
–Most STIHL power tools are
available with an anti-vibration
("AV") system designed to reduce
the transmission of vibrations
created by the machine to the
operator's hands. An AV system is
recommended for those persons
using power tools on a regular or
sustained basis.
–Wear gloves and keep your hands
warm.
–Keep the AV system well
maintained. A power tool with loose
components or with damaged or
worn AV elements will tend to have
higher vibration levels.
–Maintain a firm grip at all times, but
do not squeeze the handles with
constant, excessive pressure. Take
frequent breaks.
All the above-mentioned precautions do
not guarantee that you will not sustain
whitefinger disease or carpal tunnel
syndrome. Therefore, continual and
regular users should closely monitor the
condition of their hands and fingers. If
any of the above symptoms appear,
seek medical advice immediately.
Proper Clothing
Wear an approved safety hard hat to
reduce the risk of injury to your head.
Power tool noise may damage your
hearing. Wear sound barriers (ear plugs
or ear mufflers) to protect your hearing.
Continual and regular users should have
their hearing checked regularly.
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
Avoid loose-fitting jackets, scarfs,
neckties, jewelry, flared or cuffed pants,
unconfined long hair or anything that
could become caught on branches,
brush or the moving parts of the unit.
Secure hair so it is above shoulder level.
THE POWER TOOL
For illustrations and definitions of the
power tool parts see the chapter on
"Main Parts".
Warning!
The ignition system of the STIHL unit
produces an electromagnetic field of a
very low intensity. This field may inter-
fere with some pacemakers. To reduce
the risk of serious or fatal injury, persons
with a pacemaker should consult their
physician and the pacemaker manufac-
turer before operating this tool.
Warning!
To reduce the risk of injury, the operator
should wear proper protective apparel.
Warning!
To reduce the risk of
injury to your eyes never
operate your power tool
unless wearing goggles
or properly fitted protec-
tive glasses with
adequate top and side protection com-
plying with ANSI Z 87.1 (or your
applicable national standard). To
reduce the risk of injury to your face
STIHL recommends that you also wear
a face shield or face screen over your
goggles or protective glasses.
Always wear gloves
when handling the
machine and the cutting
tool. Heavy-duty, nonslip
gloves improve your grip
and help to protect your
hands.
Clothing must be sturdy
and snug-fitting, but allow
complete freedom of
movement. Wear long
pants made of heavy
material to help protect
your legs. Do not wear
shorts, sandals or go
barefoot.
Good footing is very
important. Wear sturdy
boots with nonslip soles.
Steel-toed safety boots
with cut retardant inserts
are recommended.
HT 56 C
English
5
If this tool is subjected to unusually high
loads for which it was not designed (e. g.
heavy impact or a fall), always check
that it is in good condition before
continuing work. Check in particular that
the fuel system is tight (no leaks) and
that the controls and safety devices are
working properly. Do not continue
operating this machine if it is damaged.
In case of doubt, have it checked by your
STIHL servicing dealer.
THE USE OF THE POWER TOOL
Transporting the Power Tool
This power tool should be carried only in
a horizontal position. Grip the shaft in a
manner that the machine is balanced
horizontally. Keep the hot muffler away
from your body and the cutting
attachment behind you. Accidental
acceleration of the engine can cause the
chain to rotate and cause serious
injuries.
Fuel
Your STIHL power tool uses an oil-
gasoline mixture for fuel (see the
chapter on "Fuel" of your instruction
manual).
Fueling Instructions
In order to reduce the risk of burns and
other personal injury from escaping gas
vapor and fumes, remove the fuel filler
cap on your power tool carefully so as to
allow any pressure build-up in the tank
to release slowly. Never remove the fuel
filler cap while the engine is running.
Select bare ground for fueling and move
at least 10 feet (3 m) from the fueling
spot before starting the engine. Wipe off
any spilled fuel before starting your
machine.
Different models may be equipped with
different fuel caps.
Warning!
Never modify this power tool in any way.
Only attachments supplied by STIHL or
expressly approved by STIHL for use
with the specific STIHL model are
authorized. Although certain unauthor-
ized attachments are useable with
STIHL power tools, their use may, in
fact, be extremely dangerous.
390BA000 KN
Warning!
Always switch off the engine and fit the
scabbard over the cutting attachment
before transporting the power tool over
long distances. When transporting it in a
vehicle, properly secure it to prevent
turnover, fuel spillage and damage to
the unit.
Warning!
Gasoline is an extremely
flammable fuel. If spilled
and ignited by a spark or
other ignition source, it
can cause fire and seri-
ous burn injury or
property damage. Use extreme caution
when handling gasoline or fuel mix. Do
not smoke or bring any fire or flame near
the fuel or the power tool. Note that
combustible fuel vapor may escape
from the fuel system.
Warning!
To reduce the risk of serious injury from
burns, never attempt to refuel the unit
until it has been completely removed
from the operator.
Warning!
Fuel your power tool in well-ventilated
areas, outdoors. Always shut off the
engine and allow it to cool before refu-
eling. Gasoline vapor pressure may
build up inside the fuel tank depending
on the fuel used, the weather conditions
and the tank venting system.
Warning!
Check for fuel leakage
while refueling and dur-
ing operation. If fuel
leakage is found, do not
start or run the engine
until the leak is fixed and
any spilled fuel has been wiped away.
Take care not to get fuel on your cloth-
ing. If this happens, change your
clothing immediately.
HT 56 C
English
6
Toolless cap with grip
To do this with this STIHL cap, raise the
grip on the top of the cap until it is upright
at a 90° angle. Insert the cap in the fuel
tank opening with the raised positioning
marks on the grip of the cap and on the
fuel tank opening lining up. Using the
grip, press the cap down firmly while
turning it clockwise as far as it will go
(approx. 1/4 turn).
Misaligned, damaged or broken cap
NIf the cap does not drop fully into the
opening when the positioning marks
line up and/or if the cap does not
tighten properly when twisted, the
base of the cap may be prematurely
rotated (vis-à-vis the top) to the
closed position. Such misalignment
can result from handling, cleaning
or an improper attempt at
tightening.
NTo return the cap to the open
position for installation, turn the cap
(with the grip up) until it drops fully
into the tank opening. Next, twist the
cap counterclockwise as far as it will
go (approx. 1/4 turn) – this will twist
the base of the cap into the correct
position. Then, twist the cap
clockwise, closing it normally.
NIf your cap still does not tighten
properly, it may be damaged or
broken; immediately stop use of the
unit and take it to your authorized
STIHL dealer for repair.
Screw Cap
See also the "Fueling" chapter in your
Instruction Manual for additional
information.
Before Starting
Take off the chain guard (scabbard) and
inspect the pole pruner for proper
condition and operation. (See the
maintenance chart near the end of the
instruction manual.)
Warning!
In order to reduce the risk of fuel spill-
age and fire from an improperly
tightened fuel cap, correctly position
and tighten the fuel cap in the fuel tank
opening.
Fold the grip flush with
the top of the cap. Grip
the cap and check for
tightness. If the grip does
not lie completely flush
with the cap and the
detent on the grip does
not fit in the correspond-
ing recess in the filler
opening, or if the cap is
loose in the filler opening,
the cap is not properly
seated and tightened and
you must repeat the
above steps.
001BA220 KN
Left: Base of cap in closed posi-
tion (with open space)
Right: Base of cap correctly posi-
tioned for installation
001BA227 KN
001BA226 KN
Warning!
Unit vibrations can cause
an improperly tightened
fuel filler cap to loosen or
come off and spill quanti-
ties of fuel. In order to
reduce the risk of fuel
spillage and fire, tighten the fuel filler
cap by hand as securely as possible.
Warning!
Always check your power tool for proper
condition and operation before starting,
particularly the throttle trigger, throttle
trigger lockout, momentary stop switch
and cutting attachment. The throttle trig-
ger must move freely and always spring
back to the idle position. Never attempt
to modify the controls or safety devices.
HT 56 C
English
7
Keep the handles clean and dry at all
times; it is particularly important to keep
them free of moisture, pitch, oil, fuel mix,
grease or resin in order for you to
maintain a firm grip and properly control
your power tool.
For proper assembly of the bar and
chain follow the procedure described in
the chapter "Mounting the Bar and
Chain" of your instruction manual.
STIHL Oilomatic chain, guide bar and
sprocket must match each other in
gauge and pitch.
Adjust carrying harness (if applicable)
and hand grip to suit your size before
starting work.
Starting
To reduce the risk of fire and burn
injuries, start the engine at least 10 feet
(3 m) from the fueling spot, outdoors
only.
For specific starting instructions, see the
appropriate section of your manual.
Proper starting methods reduce the risk
of injury.
Place the pole pruner on firm ground or
other solid surface in an open area or, in
the alternative, as shown in the above
picture. Maintain good balance and
secure footing.
Once the engine has started,
immediately blip the throttle trigger,
which should release the starting throttle
and allow the engine to slow down to
idle.
With the engine running only at idle,
attach the power tool to the spring hook
of your harness if you are wearing one
(see appropriate chapter of this manual).
Warning!
Never operate your power tool if it is
damaged, improperly adjusted or main-
tained, or not completely or securely
assembled.
Warning!
Check that the spark plug boot is
securely mounted on the spark plug – a
loose boot may cause arcing that could
ignite combustible fumes and cause a
fire.
Warning!
Proper chain tension is extremely
important. In order to avoid improper
setting, the tensioning procedure must
be followed as described in your man-
ual. Always make sure the hex nut(s) for
the sprocket cover is (are) tightened
securely after tensioning the chain.
Check chain tension once more after
having tightened the nut(s). Never start
the pole pruner with the sprocket cover
loose.
Warning!
To reduce the risk of injury from loss of
control, do not attempt to "drop start"
your power tool.
275BA007 KN
Warning!
To reduce the risk of injury from loss of
control be absolutely sure that the guide
bar and chain are clear of you and all
other obstructions and objects, includ-
ing the ground, because when the
engine starts at starting-throttle, engine
speed will be fast enough for the clutch
to engage the sprocket and turn the
chain.
Warning!
Your power tool is a one-person
machine. Do not allow other persons in
the general work area, even when start-
ing. Stop the engine immediately if you
are approached.
Warning!
When you pull the starter grip, do not
wrap the starter rope around your hand.
Do not let the grip snap back, but guide
the starter rope to rewind it properly.
Failure to follow this procedure may
result in injury to your hand or fingers
and may damage the starter
mechanism.
HT 56 C
English
8
Important Adjustments
If you cannot set the correct idle speed,
have your STIHL dealer check your
power tool and make proper
adjustments and repairs.
Proper chain tension is very important at
all times. Check it at regular intervals
(whenever the pole pruner is shut off). If
the chain becomes loose while cutting,
switch off the engine and then tighten.
Never try to tighten the chain while the
engine is running.
During Operation
Holding and Controlling the Power
Tool
Always hold the unit firmly with both
hands on the handles while you are
working. Wrap your fingers and thumbs
around the handles.
Place your left hand on the shaft and
your right hand on rear grip and throttle
trigger. Left-handers should follow these
instructions, too. Keep your hands in this
position to have your pole pruner under
control at all times.
Working Conditions
Operate and start your power tool only
outdoors in a well-ventilated area.
Operate it under good visibility and
daylight conditions only. Work carefully.
Warning!
To reduce the risk of personal injury
from loss of control or contact with the
running cutting tool, do not use your unit
with incorrect idle adjustment. At correct
idle speed, the saw chain should not
move. For directions on how to adjust
idle speed, see the appropriate section
of your instruction manual.
Warning!
This unit is equipped with an ignition
system that is normally in operational
readiness. After the setting lever is used
to stop the engine, it automatically
springs back to the "on" position. If the
engine is warm, it may be possible to
start it by simply pulling the starter rope,
with no further adjustments. To reduce
the risk of injury, be particularly alert to
keep children away from the unit.
Warning!
Never attempt to operate your power
tool with one hand. Loss of control of the
power tool resulting in serious or fatal
injury may result.
390BA026 KN
Warning!
In order to properly control your pole
pruner, always maintain good balance
and a firm foothold. Never work on a
ladder, in a tree or on any other insecure
support. Never hold the machine above
shoulder height. Do not overreach.
When working at a height above
13.1 feet (4.0 m) use a lift bucket.
Warning!
Special care must be taken in slippery
conditions (wet ground, snow) and in
difficult, overgrown terrain. Watch for
hidden obstacles such as tree stumps,
roots, rocks, holes and ditches to avoid
stumbling. For better footing, clear away
fallen branches, scrub and cuttings. Be
extremely cautious when working on
slopes or uneven ground.
Warning!
Take extreme care in wet and freezing
weather (rain, snow, ice). Put off the
work when the weather is windy, stormy
or rainfall is heavy.