Makita UC3050A, UC4550A, UC4050A, UC3550A, UC3051A User Manual
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instructions) (Original ENGLISH
INSTRUCTION MANUAL
Electric Chain Saw
UC3050A
UC3550A
UC4050A
UC4550A
UC3051A
UC3551A
UC4051A
UC4551A
014371
DOUBLE INSULATION
IMPORTANT: Read Before Using.
ENGLISH (Original instructions)
SPECIFICATIONS
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Model |
UC3050A |
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UC3051A |
UC3550A |
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UC3551A |
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UC4050A |
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UC4051A |
UC4550A |
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UC4551A |
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Max. chain speed |
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14.5 m/s (880 m/min) |
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Standard guide |
Bar length |
300 mm |
350 mm |
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400 mm |
450 mm |
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Cutting length |
260 mm |
320 mm |
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355 mm |
415 mm |
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bar |
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Guide bar type |
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Sprocket nose bar |
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Standard saw |
Type |
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91PX |
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Pitch |
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3/8" |
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chain |
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No. of drive links |
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46 |
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52 |
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56 |
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62 |
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Recommended guide bar length |
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300 - 450 mm |
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Overall length (without guide bar) |
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505 mm |
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Net weight |
5.4 kg |
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5.5 kg |
5.5 kg |
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5.6 kg |
5.7 kg |
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Extension cable (optional) |
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DIN 57282/HO 7RN -F L=30 m max.,3x1.5 mm2 |
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•Due to our continuing program of research and development, the specifications herein are subject to change without notice.
•Specifications may differ from country to country.
•Weight according to EPTA-Procedure 01/2003
END218-7
Symbol
The following show the symbols used for the equipment. Be sure that you understand their meaning before use.
Read instruction manual and follow the warnings and safety instructions.
Wear eye protection.
Wear ear protection.
DOUBLE INSULATION
Caution: particular care and attention
required!
Caution: withdraw the mains plug immediately if the cable is damaged!
Caution: kickback!
Protect against rain and damp!
Wear a helmet, goggles and ear protection!
Wear safety gloves!
Withdraw the mains plug!
First aid
Maximum permissible length of cut
Direction of chain travel
Chain oil
Chain brake released
Chain brake applied
Prohibited!
Only for EU countries
Do not dispose of electric equipment together with household waste material!
In observance of the European Directive, on Waste Electric and Electronic Equipment and its implementation in accordance with national law, electric equipment that have reached the end of their life must be collected separately and returned to an environmentally compatible recycling facility.
ENE031-3
Intended use
The tool is intended for cutting lumbers and logs.
ENF002-2
Power supply
The tool should be connected only to a power supply of the same voltage as indicated on the nameplate, and can only be operated on single-phase AC supply. They are double-insulated and can, therefore, also be used from sockets without earth wire.
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GEA005-3
General Power Tool Safety Warnings
WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
Work area safety
1.Keep work area clean and well lit. Cluttered or dark areas invite accidents.
2.Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
3.Keep children and bystanders away while
operating a power tool. Distractions can cause you to lose control.
Electrical safety
4.Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
5.Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
6.Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
7.Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
8.When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
9.If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.
10.Use of power supply via a RCD with a rated residual current of 30mA or less is always recommended.
Personal safety
11.Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
12.Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.
13.Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
14.Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
15.Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
16.Dress properly. Do not wear loose clothing or jewellery. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
17.If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of
dust collection can reduce dust-related hazards.
Power tool use and care
18.Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
19.Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
20.Disconnect the plug from the power source and/or the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
21.Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
22.Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power
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tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
23.Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
24.Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those
intended could result in a hazardous situation.
Service
25.Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
26.Follow instruction for lubricating and changing accessories.
27.Keep handles dry, clean and free from oil and grease.
GEB037-8
Chain saw safety warnings
1.Keep all parts of the body away from the saw chain when the chain saw is operating. Before you start the chain saw, make sure the saw chain is not contacting anything. A moment of inattention while operating chain saws may cause entanglement of your clothing or body with the saw chain.
2.Always hold the chain saw with your right hand on the rear handle and your left hand on the front handle. Holding the chain saw with a reversed hand configuration increases the risk of personal injury and should never be done.
3.Hold the power tool by insulated gripping surfaces only, because the saw chain may contact hidden wiring or its own cord. Saw chains contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the operator an electric shock.
4.Wear safety glasses and hearing protection. Further protective equipment for head, hands, legs and feet is recommended. Adequate protective clothing will reduce personal injury by flying debris or accidental contact with the saw chain.
5.Do not operate a chain saw in a tree. Operation of a chain saw while up in a tree may result in personal injury.
6.Always keep proper footing and operate the chain saw only when standing on fixed, secure and level surface. Slippery or unstable surfaces such as ladders may cause a loss of balance or control of the chain saw.
7.When cutting a limb that is under tension be alert for spring back. When the tension in the wood fibres is released the spring loaded limb may strike the operator and/or throw the chain saw out of control.
8.Use extreme caution when cutting brush and saplings. The slender material may catch the saw chain and be whipped toward you or pull you off balance.
9.Carry the chain saw by the front handle with the chain saw switched off and away from your body. When transporting or storing the chain saw always fit the guide bar cover.
Proper handling of the chain saw will reduce the likelihood of accidental contact with the moving saw chain.
10.Follow instructions for lubricating, chain tensioning and changing accessories.
Improperly tensioned or lubricated chain may either break or increase the chance for kickback.
11.Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control.
12.Cut wood only. Do not use chain saw for purposes not intended. For example: do not use chain saw for cutting plastic, masonry or non-wood building materials. Use of the chain saw for operations different than intended could result in a hazardous situation.
13.Causes and operator prevention of kickback:
Kickback may occur when the nose or tip of the guide bar touches an object, or when the wood closes in and pinches the saw chain in the cut.
Tip contact in some cases may cause a sudden reverse reaction, kicking the guide bar up and back towards the operator.
Pinching the saw chain along the top of the guide bar may push the guide bar rapidly back towards the operator.
Either of these reactions may cause you to lose control of the saw which could result in serious personal injury. Do not rely exclusively upon the safety devices built into your saw. As a chain saw user, you should take several steps to keep your cutting jobs free from accident or injury.
Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:
−Maintain a firm grip, with thumbs and fingers encircling the chain saw handles, with both hands on the saw and position your body and arm to allow you to resist kickback forces. Kickback forces can be controlled by the operator, if proper precautions are taken. Do not let go of the chain saw.
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014316 |
−Do not overreach and do not cut above shoulder height. This helps prevent unintended tip contact and enables better control of the chain saw in unexpected situations.
−Only use replacement bars and chains specified by the manufacturer. Incorrect replacement bars and chains may cause chain breakage and/or kickback.
−Follow the manufacturer’s sharpening and maintenance instructions for the saw chain. Decreasing the depth gauge height can lead to increased kickback.
ADDITIONAL SAFETY RULES
1.Read the instruction manual in order to familiarize yourself with operation of the chain saw.
2.Before using the chain saw for the first time, arrange to have instruction in its operation. If this is not possible, at least practice cutting round timber on a trestle before beginning work.
3.The chain saw must not be used by children or young persons under 18 years of age. Young persons over 16 years of age may be exempted from this restriction if they are undergoing training under the supervision of an expert.
4.Working with the chain saw requires a high level of concentration. Do not work with the saw if you are not feeling fit and well. Carry out all work calmly and carefully.
5.Never work under the influence of alcohol, drugs or medication.
Proper use
1.The chain saw is intended solely for cutting wood. Do not use it for example to cut plastic or porous concrete.
2.Only use the chain saw for operations described in this instruction manual. Do not, for example, use it to trim hedges or for similar purposes.
3.The chain saw must not be used for forestry work, i.e. for felling and limbing standing timber. The chain saw cable does not provide the operator with the mobility and safety required for such work.
4.The chain saw is not intended for commercial use.
5.Do not overload the chain saw.
Personal protective equipment
1.Clothing must be close-fitting, but must not obstruct mobility.
2.Wear the following protective clothing during work:
•A tested safety helmet, if a hazard is presented by falling branches or similar;
•A face mask or goggles;
•Suitable ear protection (ear muffs, custom or mouldable ear plugs). Octave brand analysis upon request.
•Firm leather safety gloves;
•Long trousers manufactured from strong fabric;
•Protective dungarees of cut-resistant fabric;
•Safety shoes or boots with non-slip soles, steel toes, and cut-resistant fabric lining;
•A breathing mask, when carrying out work which produces dust (e.g. sawing dry wood).
Protection against electric shock
The chain saw must not be used in wet weather or damp environments, as the electric motor is not waterproof.
1.Only plug the saw into sockets in tested electrical circuits. Check that the system voltage matches that on the rating plate. Ensure that a 16 A line fuse is fitted. Saws used in the open air must be connected to a residual current-operated circuitbreaker with an operating current no higher than 30 mA.
Safe working practices
1.Before starting work, check that the chain saw is in proper working order and that its condition complies with the safety regulations. Check in particular that:
•The chain brake is working properly;
•The run-down brake is working properly;
•The bar and the sprocket cover are fitted correctly;
•The chain has been sharpened and tensioned in accordance with the regulations;
•The mains cable and mains plug are undamaged;
Refer to the "CHECKS " section.
2.Always ensure in particular that the extension cable used is of adequate cross-section (see "SPECIFICATIONS"). When using a cable reel, wind the cable completely off the reel. When
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using the saw in the open air, ensure that the cable employed is intended for open-air use and is rated accordingly.
3.Keep the cord away from the cutting area and to position cord so that it will not be caught on branches, and the like, during cutting.
4.Do not operate the chain saw in the vicinity of flammable dust or gases, as the motor generates sparks and presents a risk of explosion.
5.Work only on firm ground and with a good footing. Pay particular attention to obstacles (e.g. the cable) in the working area. Take particular care where moisture, ice, snow, freshly cut wood or bark may make surfaces slippery. Do not stand on ladders or trees when using the saw.
6.Take particular care when working on sloping ground; rolling trunks and branches pose a potential hazard.
7.Never cut above shoulder height.
8.Hold the chain saw with both hands when switching it on and using it. Hold the rear handle with your right hand and the front handle with your left. Hold the handles firmly with your thumbs. The bar and the chain must not be in contact with any objects when the saw is switched on.
014316 |
9.Clean the area to be cut of foreign objects such as sand, stones, nails, wire, etc. Foreign objects damage the bar and chain, and can lead to dangerous kickback.
10.Take particular care when cutting in the vicinity of wire fences. Do nut cut into the fence, as the saw may kick back.
11.Do not cut into the ground.
12.Cut pieces of wood singly, not in bunches or stacks.
13.Avoid using the saw to cut thin branches and roots, as these can become entangled in the chain saw. Loss of balance presents a hazard.
14.Use a secure support (trestle) when cutting sawn timber.
15.Do not use the chain saw to prise off or brush away pieces of wood and other objects.
16.Guide the chain saw such that no part of your body is within the extended path of the saw chain (see figure).
006909
17.When moving around between sawing operations, apply the chain brake in order to prevent the chain from being operated unintentionally. Hold the chain saw by the front handle when carrying it, and do not keep your finger on the switch.
18.Withdraw the mains plug when taking breaks or leaving the chain saw unattended. Leave the chain saw where it cannot present a hazard.
Kickback
1.Hazardous kickback may arise during work with the chain saw. Kickback arises when the tip of the bar (in particular the upper quarter) comes into contact with wood or another solid object. This causes the chainsaw to be deflected in the direction of the operator.
006919
2.In order to avoid kickback, observe the following:
•Never begin the cut with the tip of the bar.
•Never use the tip of the bar for cutting. Take particular care when resuming cuts which have already been started.
•Start the cut with the chain running.
•Always sharpen the chain correctly. In particular, set the depth gauge to the correct height.
•Never saw through several branches at a time.
•When limbing, take care to prevent the bar from coming into contact with other branches.
•When bucking, keep clear of adjacent trunks. Always observe the bar tip.
•Use a trestle.
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