Stihl HT Instruction Manual

STIHL HT
WARNING
Read Instruction Manual thoroughly before use and follow all safety precautions – improper use can cause serious or fatal injury.
Antes de usar la máquina lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones – el uso incorrecto puede causar lesiones graves o mortales.
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Instruction Manual Manual de instrucciones
Instruction Manual 1 - 32
Manual de instrucciones 33 - 67
Contents
English
Interchangeable Attachments 2 Guide to Using this Manual 2 Safety Precautions and Working
Techniques 3 Using the Unit 10 Approved Basic Power Tools 12 Mounting the Attachment 13 Cutting Attachment 15
Original Instruction ManualPrinted on chlorine-free paper
Mounting the Bar and Chain 16 Tensioning the Chain 17 Checking Chain Tension 17 Chain Lubricant 18 Filling Chain Oil Tank 18 Checking Chain Lubrication 20 Fitting the Harness 20 Starting / Stopping the Engine 21 Operating Instructions 22 Storing the Machine 23 Taking Care of the Guide Bar 23 Checking and Replacing the Chain
Sprocket 24 Maintaining and Sharpening the
Printing inks contain vegetable oils, paper can be recycled.
Saw Chain 24 Maintenance and Care 28 Main Parts 29 Specifications 30 Maintenance and Repairs 31 Disposal 31 Trademarks 31
Allow only persons who fully understand the manuals of the basic power tool and your pole pruner attachment to operate this power tool combination.
To receive maximum performance and satisfaction from your STIHL pole pruner attachment, 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 attachment. 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 the two manuals.
WARNING
Because a power tool power head and shaft equipped with a pole pruner attachment is a power tool, some special safety precautions must be observed to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury.
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© ANDREAS STIHL AG & Co. KG, 2015
0458-402-8621-A. VA0.K15.
0000000244_007_GB
HT
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems.
1
English
. . . .
002BA531 KN
+
+
Interchangeable Attachments
The STIHL interchangeable attachment may be mounted to different STIHL power tools.
The approved power tool models are listed in the chapter on "Approved Basic Power Tools".
In this instruction manual the functional unit formed by the basic power tool and interchangeable attachment is referred to as the power tool.
Therefore, the separate instruction manuals for the basic power tool and attachment should be used together for the power tool.
Always read and and make sure you understand both instruction manuals before using your power tool for the first time and keep them in a safe place for future reference.
Guide to Using this Manual
Pictograms
All the pictograms attached to or embossed on the machine are shown and explained in this manual.
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:
N A 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:
N Loosen the screw (1). N Lever (2) ...
In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the following symbols and signal words:
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.
NOTICE
Indicates a risk of property damage, including damage to the machine or its individual components.
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 or the STIHL distributor for your area for assistance.
2
HT
English
Safety Precautions and Working Techniques
Because a power tool power head and shaft equipped with a pole pruner attachment is a high-speed, fast-cutting 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 manuals and the safety precautions for your basic power tool and pole your pruner attach­ment periodically. Careless or improper use may cause serious or fatal injury.
Have your STIHL dealer show you how to operate your power tool. Observe all applicable local safety regulations, standards and ordinances.
WARNING
Do not lend or rent your power tool without the instruction manuals for your basic power tool and your pole pruner attachment. Be sure that anyone using it understands the information contained in these manuals.
WARNING
The use of this machine may be hazardous. 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.
Do not cut any material other than wood or wooden objects. Use your power tool power head and shaft equipped with a pole pruner attachment for limbing only.
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 bystanders 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 unauthorized persons do not use it.
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 basic power tool and your pole pruner attachment instruction manuals for a description of the controls and the function of the parts of your model.
Safe use of a power tool involves
1. the operator
2. the power tool
3. the use of the power tool.
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.
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.
Proper Clothing
WARNING
To reduce the risk of injury, the operator should wear proper protective apparel.
HT
3
English
WARNING
To reduce the risk of injury to your eyes never operate your power tool unless wearing goggles or properly fitted protec­tive glasses with adequate top and side protection complying with ANSI Z87 "+" (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.
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.
Always wear heavy duty work gloves (e.g. made of leather or other wear resistant material) 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.
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.
Good footing is very important. Wear sturdy boots with nonslip soles. Steel-toed safety boots are recommended.
For further instructions on proper clothing see the safety precautions in the instruction manual of the basic power tool.
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 basic power tool model are authorized. Although certain unauthorized attachments are useable with STIHL power tools, their use may, in fact, be extremely dangerous.
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
WARNING
Always switch off the engine and fit the scabbard over the cutting attachment before transporting the power tool over long distances.
THE POWER TOOL
For illustrations and definitions of the power tool parts see the chapter on "Main Parts."
4
HT
English
002BA254 KN
275BA006 KN
It may 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.
WARNING
When transporting it in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the unit.
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 manuals.)
WARNING
Always check your power tool for proper condition and operation before starting. Never attempt to modify the controls or safety devices.
WARNING
Never operate your power tool if it is damaged, improperly adjusted or maintained, or not completely or securely assembled.
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.
WARNING
Proper tension of the chain is extremely important. In order to avoid improper setting, the tensioning procedure must be followed as described in your manual. Always make sure the hexagonal nut(s) for the sprocket cover is (are) tightened securely after tensioning the chain in order to secure the bar. Never start the pole pruner with the sprocket cover loose. Check chain tension once more after having tightened the nut(s) and thereafter at regular intervals (whenever the pole pruner is shut off). If the chain becomes loose while cutting, shut off the engine and then tighten. Never try to adjust the chain while the engine is running!
Adjust harness and hand grip to suit your size before starting work. To be better prepared in case of an emergency, practice releasing the unit from the harness as quickly as possible.
Starting 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 basic power tool and your pole pruner attachment manuals.
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.
WARNING
To reduce the risk of injury from loss of control, do not attempt to "drop start" your power tool.
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, including the ground, because when the engine starts at starting-throttle, engine speed will be fast enough for the clutch to engage the sprocket and move the chain.
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.
HT
5
English
402BA030 KN
With the engine running only at idle, attach the power tool to the spring hook of your harness (see appropriate chapter of this manual).
WARNING
Your power tool is a one-person machine. Do not allow other persons in the general work area, even when starting.
See also the Safety Precautions on Starting in the instruction manual for your basic power tool.
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 front handle and your right hand on the rear grip and throttle trigger. This also applies to left­handers. Keep your hands in this position to have your pole pruner under control at all times.
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.
WARNING
Do not overreach. Keep proper footing and balance at all times. 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 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
To reduce the risk of injury from loss of control, never work on a ladder, in a tree or any other insecure support. Never hold the machine above shoulder height. When working at a height above 15 feet (4.5 m) use a lift bucket.
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.
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
If the vegetation being cut or the surrounding ground is coated with a chemical substance (such as an active pesticide or herbicide), read and follow the instructions and warnings that accompanied the substance at issue.
WARNING
Inhalation of certain dusts, especially organic dusts such as mold or pollen, can cause sus­ceptible persons to have an allergic or asthmatic reaction.
6
HT
English
15m (50ft)
15m (50ft)
Substantial or repeated inhalation of dust and other airborne contaminants, in particular those with a smaller particle size, may cause respiratory or other illnesses. This includes wood dust, especially from hardwoods, but also from some softwoods such as Western Red Cedar. Control dust at the source where possible. Use good work practices, such as always cutting with a properly sharpened chain (which produces wood chips rather than fine dust) and operating the unit so that the wind or operating process directs any dust raised by the power tool away from the operator. Follow the recommendations of EPA / OSHA / NIOSH and occupational and trade associations with respect to dust ("particulate matter"). When the inhalation of dust cannot be substantially controlled, i.e., kept at or near the ambient (background) level, the operator and any bystanders should wear a respirator approved by NIOSH / MSHA for the type of dust encountered.
WARNING
Breathing asbestos dust is dangerous and can cause severe or fatal illness, respiratory illness or cancer. The use and disposal of asbestos-containing products have been strictly regulated by OSHA and the Environmental Protection Agency. If you have any reason to believe that you might be cutting asbestos, immediately contact your employer or a local OSHA representative.
WARNING
This power tool has a large range. In order to reduce the risk of personal or even fatal injury to bystanders from falling objects or inadvertent contact with the moving chain of your power tool always keep bystanders at least 50 feet (15 m) away when the power tool is running.
DANGER
Your power tool is not insulated against electric shock. To reduce the risk of electrocution, never operate this power tool in the vicinity of any wires or cables (power, etc.) which may be carrying electric current.
Electricity can jump from one point to another by means of arcing. Higher voltage increases the distance electricity can arc. Electricity can also move through branches, especially if they are
wet. Maintain a clearance of at least 50 feet (15 m) between the pole pruner (including any branches it is contacting) and any electrical line carrying live current. Before working with less clearance, contact your electric utility and make sure the current is turned off.
Stop the engine immediately if you are approached.
Make sure that the saw chain does not touch any foreign materials such as rocks, fences, nails and the like. Such objects may be flung off and injure the operator or bystanders, or damage the saw chain.
WARNING
Even though bystanders should be kept away from the running power tool, never work alone. Keep within calling distance of others in case help is needed.
Operating Instructions
WARNING
Do not operate your power tool using the starting throttle lock, as you do not have control of the engine speed.
In the event of an emergency, switch off the engine immediately – move the slide control / stop switch / momentary stop switch to 0 or STOP.
See section of your basic power tool instruction manual on the proper use of the slide control / stop switch / momentary stop switch.
HT
7
English
275BA005 KN
WARNING
To reduce the risk of cut injuries, keep hands and feet away from the saw chain. Never touch a moving chain with your hand or any other part of your body. The saw chain continues to move for a short period after the throttle trigger is released (inertia effect).
Accelerating the engine while the chain is blocked increases the load and will cause the clutch to slip continuously. This may result in overheating and damage to important components (e.g. clutch, polymer housing components) – which can then increase the risk of injury from the chain moving while the engine is idling.
WARNING
If the chain becomes clogged, always shut off the engine and make sure the chain has stopped before cleaning.
WARNING
Prior to limbing, clear the working area from interfering limbs and brush. Then, establish an escape area away from where the cut limbs can fall, and remove all obstacles.
Keep work area clear – move away fallen limbs. Place all tools and equipment at a safe distance from the branches being limbed, but not in the escape area.
WARNING
Always observe the general condition of the tree. Look for decay and rot in the trunk and branches. If it is rotted inside,
it could snap and fall toward the operator while being cut. Also look for broken or dead branches which could vibrate loose and fall on the operator. If the branch is thick or heavy, make a shallow relief cut on the bottom of the branch before cutting down from the top to help prevent splitting of the branch.
WARNING
To reduce the risk of severe or even fatal injury from falling objects do not cut vertically above your body. Hold the pole pruner at an angle of not more than 60° from the horizontal level (see picture). Objects may fall in unexpected directions. Do not stand directly underneath the limb being cut!
Watch for falling wood! As soon as the limbed branch starts to fall, step aside and keep a sufficient distance away from the falling wood.
WARNING
Always pull the unit out of the cut with the chain running to reduce the possibility of pinching the cutting attachment. Don't put pressure on the pole pruner when reaching the end of a cut. The pressure may cause the bar and rotating chain to pop out of the cut or kerf, go out of control and strike some other object.
If the bar becomes pinched and caught in the branch so that the chain can no longer move, shut off the pole pruner and carefully move the branch to open the pinch and release the bar.
WARNING
If a rotating saw chain strikes a rock or other hard object, sparks may be created, which can ignite flammable materials under certain circumstances. Flammable materials can include dry vegetation and brush, particularly when weather conditions are hot and dry. When there is a risk of fire or wildfire, do not use a power tool around flammable materials or around dry vegetation or brush. Contact your local fire authorities or the U.S. Forestry Service if you have any question about whether vegetation and weather conditions are suitable for the use of a pole pruner.
WARNING
The gearbox becomes hot during operation. To reduce the risk of burn injury, do not touch the gear housing when it is hot.
8
HT
English
002BA230 KN
001BA037 KN
A
001BA038 KN
B
Reactive Forces
WARNING
Reactive forces may occur any time the chain is rotating.The force used to cut wood can be reversed and work against the operator. If the rotating chain is suddenly stopped by contact with any solid object such as a branch or is pinched, the reactive forces may occur instantly. These reactive forces may result in loss of control, which, in turn, may cause personal injury. An understanding of the causes of these reactive forces may help you avoid the element of surprise and loss of control.
Because of the design of the pole pruner, the reactive forces experienced when working with it are generally not as severe as those encountered with a chain saw. Nevertheless, you should always maintain a proper grip and good footing to control the power tool when you experience such forces.
The most common reactive forces are:
kickback, pushback, pull-in.
Kickback Kickback may occur when the moving
saw chain near the upper quadrant of the bar nose contacts a solid object or is pinched.
The reaction of the cutting force of the chain causes a rotational force on the pole pruner in the direction opposite to the chain movement. This may cause the bar to move upward.
To Avoid Kickback The best protection from kickback is to
avoid kickback situations:
1. Be aware of the loca tion of the guide bar nose at all times
2. Never let the nose of the guide bar contact any object. Do not cut limbs with the nose of the guide bar. Be especially careful near wire fences and when cutting small, tough limbs, which may easily catch the chain.
3. Cut only one limb at a time.
A = Pull-in
Pull-in occurs when the chain on the bottom of the bar is suddenly stopped when it is pinched, caught or encounters
a foreign object in the wood. The reaction of the chain pulls the saw forward.
Pull-in frequently occurs when the chain is not rotating at full speed before it contacts the wood.
To Avoid Pull-in
1. Be alert to forces or situations that may cause material to pinch the chain at the bottom of the bar.
2. Always start a cut with the chain rotating at full speed.
B = Pushback
Pushback occurs when the chain on the top of the bar is suddenly stopped when it is pinched, caught or encounters a foreign object in the wood. The reaction of the chain may drive the saw rapidly straight back toward the operator. Pushback frequently occurs when the top of the bar is used for cutting.
To Avoid Pushback
1. Be alert to forces or situations that may cause material to pinch the chain at the top of the bar.
2. Do not cut more than one limb at a time.
3. Do not twist the bar when withdrawing it from an underbuck cut because the chain can pinch.
HT
9
English
MAINTENANCE, REPAIR AND STORING
WARNING
Always stop the engine and make sure that the chain is stopped before doing any maintenance or repair work or cleaning the power tool. Do not attempt any maintenance or repair work not described in the instruction manuals for your basic power tool and your pole pruner attachment. Have such work performed at your STIHL servicing dealer only.
WARNING
Use only identical STIHL replacement parts for maintenance and repair. Use of non-STIHL parts may cause serious or fatal injury.
Wear gloves when handling or performing maintenance on the cutting attachment.
WARNING
Keep the chain, bar and sprocket clean; replace worn sprockets or chains. Keep the chain sharp. You can spot a dull chain when easy-to-cut wood becomes hard to cut or burn marks appear on the wood.
Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use.
Do not clean your machine with a pressure washer. The solid jet of water may damage parts of the machine.
Store the power tool in a dry and high or locked location out of reach of children.
Store chain oil in approved and properly labeled safety-type canisters only. Avoid direct contact with the skin!
Using the Unit
Preparations
N Wear suitable protective clothing,
observe safety precautions.
N Starting the engine N Put on the shoulder strap.
Cutting sequence
To allow branches a free fall, always cut the lower branches first. Prune heavy branches (large diameter) in several controllable pieces.
WARNING
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 – risk of injury.
Disposal
Do not throw cuttings into the garbage can – they can be composted.
Working Technique
Hold the control handle with your right hand, and the loop handle with your left hand. Your left arm should be extended to the most comfortable position.
10
HT
English
402BA012 KN
390BA052 KN
2
1
390BA041 KN
3
4
A
390BA024 KN
The shaft should always be held at an angle of 60° or less.
The least tiring working position is a tool angle of 60°.
Any lesser angle may be used to suit the situation concerned.
Cross-cut
Relieving cut
To avoid tearing the bark on thick branches, always start by performing a relieving cut (1) on the underside of the branch.
N To do this, apply the cutting
attachment and pull it across the bottom of the branch in an arc as far as the bar nose.
N Then position the bar with the hook
against the branch and perform the cross-cut (2).
Flush-cutting thick branches
If branch diameter is more than 4 in (10 cm), first
N perform an initial cut (3), with
relieving cut and cross-cut at distance (A) of about 8 in (20 cm) from the final cut, then carry out the flush-cut (4), starting with a relieving cut and finishing with a cross-cut.
To avoid pinching the bar in the cut, position the cutting attachment with the hook against the branch and then perform the cross-cut from the top downwards.
HT
11
English
402BA013 KN
402BA032 KN
1
2
390BA053 KN
2
1
002BA323 KN
1
Cutting above obstacles
The unit's long reach makes it possible to prune branches that are overhanging obstacles, such as rivers or lakes. The tool angle in this case depends on the position of the branch.
Cutting from a lift bucket
30° angle drive (special accessory)
The angle drive keeps the cutting attachment at an angle of 30° to the drive tube.
The angle drive may be adjusted on the drive tube to the following positions only:
1 For cross-cutting vertical branches
and bushes.
2 For a better view of the cutting
attachment.
Approved Basic Power Tools
WARNING
This interchangeable attachment is only approved for use on a basic power tool equipped with one of the following handle systems:
Loop handle (1). Handle hose (2).
Operation of this interchangeable attachment is permitted only with the following basic power tools:
STIHLFS85R
FS 110 R2), FS 130 R
STIHL FH 75 STIHL FC 85, FC 95, FC 110 STIHL HL 75, HL 100, the HT
attachment is not approved for models with a short drive tube.
1) 2)
, FS 90 R,
The unit's long reach enables cutting to be performed next to the trunk without the risk of the lift bucket damaging other branches. The tool angle in this case depends on the position of the branch.
12
1)
Not approved for model FS 85 R with serial numbers from 2 49 848 196 up to 2 53 552 820
2)
Not approved for models FS 85 RX and FS 110 RX
HT
English
413BA014 KN
002BA248 KN
228BA092 KN
BF
228BA090 KN
FCS
STIHL HT 56, HT 70, HT 75,
HT 100, HT 101, HT 130, HT 131, HT 250
STIHL KW 85
WARNING
The attachment is not approved for use on bike-handled machines.
The optional 30° angle drive must not be mounted to the following models:
STIHL HT 75, HT 101, models with
short drive tube (K versions).
WARNING
Combinations with basic power tools other than those listed above are not permitted since they may result in accidents or serious personal injury.
Mounting the Attachment
Preparations for Mounting the Attachment
WARNING
To reduce the risk of injury, always shut off the engine before converting the basic power tool.
NOTICE
Make sure the work area is clean before mounting or removing the attachment.
N Rest the power tool on the machine
support.
Removing the protective cap If a cap is fitted on the end of the power
tool's drive tube:
If the plug comes out of the drive tube when you pull off the cap:
N Push the plug into the drive tube as
far as stop.
Removing the gearbox or attachment Remove any existing gearbox or
interchangeable attachment from the basic power tool.
HT
N Pull the protective cap off the end of
the drive tube and keep it in a safe place.
13
English
KB/KW
228BA089 KN
381BA015 KN
L
A
402BA002 KN
2
402BA023 KN
1
FH/HL
FS
FCS
228BA091 KN
N Loosen the clamp screws (arrows)
on the gearbox housing – do not remove them.
N Pull the gearbox off the drive tube. If the drive shaft slips out of the tube
when you pull off the gearbox: N Push the drive shaft into the tube.
228BA081 KN
Mounting the Cutting Attachment
N Apply a mark (with pencil or felt-tip
pen) at distance A (50 mm/2 in) from the end of the drive tube.
Loosen the clamp screws on the
gearbox – do not remove them.
The drive shaft must not project from the tube more than L = 22 mm (7/8 in).
228BA083 KN
If dimension (L) is not correct: N Apply slight pressure to the drive
shaft and rotate it slowly at the same
FS
228BA086 KN
time until it can be pushed in to the specified length.
14
N Push the gearbox (1) onto the drive
tube (2) – turn the gearbox back and forth until the square end of the shaft engages and the edge of the housing reaches or covers the mark (arrow).
HT
N Insert the clamp screws (3) as far as
402BA024 KN
3
3
1
A
1
3
1
413BA012 KN
2
2
001BA248 KN
1
2
3
a
stop.
N Line up the gearbox (1) on the drive
tube so that the machine support on the engine and the clamp screws face up and the chain sprocket cover is exactly vertical.
N Tighten down the clamp screws (3)
in the following sequence:
tighten the left screw moderately tighten the right screw moderately tighten down the left screw firmly tighten down the right screw firmly
WARNING
It must not be possible to rotate the gearbox on the drive tube.
Fitting the Carrying Ring
N Mount the carrying ring (1) at
distance A = about 5 cm (2 in) from the control handle (2).
N Place the open carrying ring (1)
against the drive tube with the tapped hole on the left (viewed from engine).
N Squeeze the ends of the carrying
ring together and insert the M6x14 screw (3).
N Line up the carrying ring and tighten
down the screw firmly.
English
Cutting Attachment
A cutting attachment consists of the saw chain, guide bar and chain sprocket.
The cutting attachment that comes standard is designed to exactly match the pole pruner.
The pitch (t) of the saw chain (1),
chain sprocket and the nose sprocket of the Rollomatic guide bar must match.
The drive link gauge (2) of the saw
chain (1) must match the groove width of the guide bar (3).
If non-matching components are used, the cutting attachment may be damaged beyond repair after a short period of operation.
A carrying ring is necessary if the power tool is to be used with a shoulder strap/harness. Not all versions of basic power tools are equipped with a carrying ring.
The carrying ring is available as a special accessory and is mounted as described below.
HT
15
English
001BA244 KN
390BA042 KN
1
2
390BA043 KN
390BA003 KN
Chain scabbard
Your pole pruner comes standard with a chain scabbard that matches the cutting attachment.
If you use guide bars of different lenghts on the pole pruner, the length of the chain scabbard must be matched to the guide bar to reduce the risk of injury. It should cover the full length of the guide bar.
The length of the matching guide bars is marked on the side of the chain scabbard.
Mounting the Bar and Chain
Removing the chain sprocket cover
N Unscrew the nut and remove the
cover.
N Turn the screw (1)
counterclockwise until the tensioner slide (2) butts against the left end of the housing slot, then back it off 5 full turns.
Fitting the chain
WARNING
Wear work gloves to protect your hands from the sharp cutters.
N Fit the chain – start at the bar nose.
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English
1
5
390BA044 KN
4
3
1
390BA045 KN
390BA046 KN
N Fit the guide bar over the screw (3)
and engage peg of tensioner slide in the hole (4) – place the chain over the sprocket (5) at the same time.
N Turn the tensioning screw (1)
clockwise until there is very little chain sag on the underside of the bar – and the drive link tangs are engaged in the bar groove.
N Refit the cover and screw on the nut
fingertight.
N Go to chapter on "Tensioning the
Saw Chain"
Tensioning the Chain
Retensioning during cutting work:
N Stopping the engine N Loosen the nut. N Hold the bar nose up. N Use a screwdriver to turn the
tensioning screw (1) clockwise until the chain fits snugly against the underside of the bar.
N While still holding the bar nose up,
tighten down the nut firmly.
N Go to "Checking Chain Tension". A new chain has to be retensioned more
often than one that has been in use for some time.
N Check chain tension frequently –
see chapter on "Operating Instructions".
Checking Chain Tension
N Shut off the engine N Wear work gloves to protect your
hands.
N The chain must fit snugly against
the underside of the bar and it must still be possible to pull the chain along the bar by hand.
N If necessary, retension the chain. A new chain has to be retensioned more
often than one that has been in use for some time.
N Check chain tension frequently –
see chapter on "Operating Instructions".
HT
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390BA047 KN
002BA575 KN
002BA576 KN
002BA577 KN
Chain Lubricant Filling Chain Oil Tank
For automatic and reliable lubrication of the chain and guide bar – use only an environmentally compatible quality chain and bar lubricant. Rapidly biodegradable STIHL BioPlus is recommended.
NOTICE
Biological chain oil must be resistant to aging (e.g. STIHL BioPlus), since it will otherwise quickly turn to resin. This results in hard deposits that are difficult to remove, especially in the area of the chain drive and chain. It may even cause the oil pump to seize.
The service life of the chain and guide bar depends on the quality of the lubricant. It is therefore essential to use only a specially formulated chain lubricant.
WARNING
Do not use waste oil. Renewed contact with waste oil can cause skin cancer. Moreover, waste oil is environmentally harmful.
NOTICE
Waste oil does not have the necessary lubricating properties and is unsuitable for chain lubrication.
NOTICE
A full chain oil tank is sufficient for only half a tankful of fuel. Check the oil level regularly during cutting work. Never allow the oil tank to run dry.
Preparations
N Thoroughly clean the oil filler cap
and the area around it to ensure that no dirt falls into the tank.
N Position the machine so that the
filler cap faces up.
Opening
N Raise the grip until it is upright.
N Turn the cap counterclockwise
(about a quarter turn).
Marks on filler cap and oil tank must line up.
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002BA578 KN
002BA577 KN
002BA579 KN
002BA580 KN
002BA581 KN
002BA583 KN
N Remove the cap.
Filling up with chain oil
N Filling up with chain oil Take care not to spill chain oil while
refilling and do not overfill the tank.
Closing
Grip must be vertical: N Fit the cap – marks on filler cap and
oil tank must line up.
N Press the cap down as far as stop.
N While holding the cap depressed,
turn it clockwise until it engages in position.
The marks on the filler cap and oil tank are then in alignment.
N Fold the grip down.
Filler cap is locked. If the oil level in the tank does not go
down, the reason may be a fault in the oil supply system: Check chain lubrication, clean the oilways, contact your dealer for assistance if necessary STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.
If the filler cap cannot be locked in the oil tank opening
Bottom of cap is twisted in relation to top.
N Remove the cap from the oil tank
and check it from above.
HT
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English
002BA584 KN
1
002BA576 KN
390BA048 KN
1
002BA441 KN
2
Left: Bottom of cap is twisted –
inner mark (1) in line with outer mark.
Right: Bottom of cap in correct posi-
tion – inner mark is under the grip. It is not in line with the outer mark.
N Place the cap on the opening and
rotate it counterclockwise until it engages the filler neck.
N Continue rotating the cap
counterclockwise (about a quarter turn) – this causes the bottom of the cap to be turned to the correct position.
N Turn the cap clockwise and lock it in
position – see section on "Closing".
Checking Chain Lubrication
The saw chain must always throw off a small amount of oil.
NOTICE
Never operate your saw without chain lubrication. If the chain runs dry, the whole cutting attachment will be irretrievably damaged within a very short time. Always check chain lubrication and the oil level in the tank before starting work.
Every new chain has to be broken in for about 2 to 3 minutes.
After breaking in the chain, check chain tension and adjust if necessary – see "Checking Chain Tension".
Fitting the Harness
Not all basic power tools are equipped with a harness and carrying ring.
N Fit the carrying ring – see "Mounting
the Attachment".
The shoulder strap is available as a special accessory.
The type of carrying ring, harness and carabiner depends on the market and the basic power tool.
Shoulder strap
N Put on the shoulder strap (1). N Adjust the length of the strap – with
the machine attached, the carabiner (2) must be about a hand's width below your right hip.
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