Manual Makita UC 4020 (page 10 of 100) (English, German, Dutch, Danish, French, Italian, Portuguese, Spanish)

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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. (Fig. 1)

- 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 circuit-breaker with an

operating current no higher than 30 mA.

Should the connecting cable be damaged,

withdraw the mains plug immediately.

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 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

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Makita UC 4020 Manual

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