Makita UC4550A User manual

1
v
GB Electric Chain Saw INSTRUCTION MANUAL
SElektrisk kedjesåg BRUKSANVISNING
NElektrisk kjedesag BRUKSANVISNING
FIN Sähkömoottorisaha KÄYTTÖOHJE
LV Elektriskais motorzāģis LIETOŠANAS INSTRUKCIJA
LT Elektrinis grandininis pjūklas NAUDOJIMO INSTRUKCIJA
EE Elektriline kettsaag KASUTUSJUHEND
RUS Электрическая Цепная Пила
РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
UC3050A
UC3550A
UC3550AP
UC4050A
UC4550A
UC3051A
UC3551A
UC4051A
UC4551A
RAMIRENT

2
1 014453
1
2
2 014393
1
3 014515
1
4 014516
1
5 014457
2
1
6 014448
3
1
2
7 014380 8 014454
1
2
9 014394
12
35
4
10 014680
12
35
4
11 014682
4
31
2
12 014359
1
2
13 014376
Reclaimend
oil
14 006921
1
2
15 014386
RAMIRENT

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1
2
3
18 014387
1
32
19 014439
1
20 014517 21 014392
1
22 014389 23 006914
A
B
A
B
24 006915
25 014390
45
o
2
1
/ 2
45
o
1
26 006917 27 006918
28 006923
1
2
2
33
29 009202 30 006924
12
35
4
16 014680
12
35
4
17 014682
RAMIRENT

4
22
11
31
31 014456
30
30
11
32 014455 33 006927
30
34 006928 35 014344 36 006930
1
2
37 014391
1
38 014513
1
39 001145
1
2
40 014395
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ENGLISH (Original instructions)
Explanation of general view
2-1. Lever
2-2. Sprocket cover
3-1. Adjusting screw
4-1. Adjusting dial
5-1. Sprocket
6-1. Guide bar
6-2. Hole
7-1. Hook
7-2. Hole
7-3. Pin
9-1. Lever
9-2. Sprocket cover
10-1. Loosen
10-2. Tighten
10-3. Chain adjusting screw
10-4. Guide bar
10-5. Saw chain
11-1. Loosen
11-2. Tighten
11-3. Adjusting dial
11-4. Guide bar
11-5. Saw chain
12-1. Cord hook
12-2. Tool's cord
12-3. Extension cord
12-4. Plug and socket (the shape may
differ from country to country)
13-1. Lock-off button
13-2. Switch trigger
15-1. Oil filler cap
15-2. Strap
16-1. Loosen
16-2. Tighten
16-3. Chain adjusting screw
16-4. Guide bar
16-5. Saw chain
17-1. Loosen
17-2. Tighten
17-3. Adjusting dial
17-4. Guide bar
17-5. Saw chain
18-1. Front hand guard
18-2. Lock
18-3. Unlock
19-1. Front hand guard
19-2. Unlock
19-3. Lock
20-1. Oil level sight
22-1. Spike bumper
26-1. Felling area
29-1. Felling direction
29-2. Danger zone
29-3. Escape route
31-1. Cutting length
31-2. Distance between cutting edge
and depth gauge
31-3. Minimum 3 mm
32-1. Side plate angle
37-1. Oil guide groove
37-2. Oil feed hole
38-1. Sprocket
39-1. Limit mark
40-1. Brush holder cap
40-2. Screwdriver
SPECIFICATIONS
Model UC3050A UC3051A UC3550A UC3550AP UC3551A UC4050A UC4051A UC4550A UC4551A
Max. chain speed 14.5 m/s (870 m/min)
Bar length 300 mm 350 mm 400 mm 450 mm
Cutting length 260 mm 320 mm 355 mm 415 mm
Standard guide
bar Guide bar type Sprocket nose bar
Type 91PX
Pitch 3/8"
Standard saw
chain No. of drive links 46 52 56 62
Recommended guide bar length 300 - 450 mm
Overall length (without guide bar) 505 mm
Net weight 5.4 kg 5.5 kg 5.5 kg 5.6 kg 5.5 kg 5.6 kg 5.7 kg
Extension cable (optional) DIN 57282/HO 7RN -F L=30 m max.,3x1.5 mm2
• 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!
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･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.
ENE085-1
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.
ENG905-1
Noise
The typical A-weighted noise level determined
according to EN60745:
Sound pressure level (LpA) : 90.8 dB (A)
Sound power level (LWA) : 101.8 dB (A)
Uncertainty (K) : 2.5 dB (A)
Wear ear protection
ENG900-1
Vibration
The vibration total value (tri-axial vector sum)
determined according to EN60745:
Work mode : cutting wood
Vibration emission (ah) : 5.2 m/s2
Uncertainty (K) : 1.5 m/s2
ENG901-1
• The declared vibration emission value has been
measured in accordance with the standard test
method and may be used for comparing one tool
with another.
• The declared vibration emission value may also be
used in a preliminary assessment of exposure.
WARNING:
• The vibration emission during actual use of the
power tool can differ from the declared emission
value depending on the ways in which the tool is
used.
• Be sure to identify safety measures to protect the
operator that are based on an estimation of
exposure in the actual conditions of use (taking
account of all parts of the operating cycle such as
the times when the tool is switched off and when it
is running idle in addition to the trigger time).
ENH030-5
For European countries only
EC Declaration of Conformity
Makita declares that the following Machine(s):
Designation of Machine:
Chain Saw
Model No./ Type: UC3050A, UC3550A, UC4050A,
UC4550A, UC3051A, UC3551A, UC3550AP, UC4051A,
UC4551A
Specifications: see "SPECIFICATIONS" table.
Conforms to the following European Directives:
2000/14/EC, 2006/42/EC
They are manufactured in accordance with the following
standard or standardized documents:
EN60745
The EC-Type Examination Certificate
No.5514056.14005
The EC-Type Examination per 2006/42/EC was
performed by:
DEKRA Testing and Certification GmbH
Enderstraße 92b
01277 Dresden
Germany
Identification No. 2140
The technical file in accordance with 2006/42/EC is
available from:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
The conformity assessment procedure required by
Directive 2000/14/EC was in Accordance with annex V.
Measured Sound Power Level: 101.9 dB (A)
Guaranteed Sound Power Level: 103 dB (A)
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4.9.2014
000331
Yasushi Fukaya
Director
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
GEA010-1
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.
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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8
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 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.
RAMIRENT

9
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.
Safety features
1. Always check that the safety features are in
working order before starting work. Do not use
the chain saw if the safety features are not
working properly.
−Chain brake:
The chain saw is fitted with a chain brake which
brings the saw chain to a standstill within a fraction
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10
of a second. It is activated when the hand guard is
pushed forwards. The saw chain then stops within
0.15 s, and the power supply to the motor is
interrupted.
12
014317
−Run-down brake:
The chain saw is equipped with an run down brake
which brings the saw chain to an immediate stop
when the ON/OFF switch is released. This
prevents the saw chain from running on when
switched off, and thus presenting a hazard.
−The front and rear hand guards protect the user
against injury from pieces of wood which may be
thrown backwards, or a broken saw chain.
−The trigger lockout prevents the chain saw from
being switched on accidentally.
−The chain catcher protects the user against injury
should the chain jump or break.
Transport and storage
･When the chain saw is not in use or is
being transported, withdraw the mains
plug and fit the guide bar cover
supplied with the saw. Never carry or
transport the saw with the saw chain
running.
1. Carry the chain saw by the front handle only, with
the bar pointing backwards.
2. Keep the chain saw in a secure, dry and locked
room out of the reach of children. Do not store the
chain saw outdoors.
MAINTENANCE
1. Withdraw the plug from the socket before carrying
out any adjustments or maintenance.
2. Check the power cable regularly for damage to
the insulation.
3. Clean the chain saw regularly.
4. Have any damage to the plastic housing repaired
properly and immediately.
5. Do not use the saw if the switch trigger is not
working properly. Have it properly repaired.
6. Under no circumstances should any modifications
be made to the chain saw. Your safety is at risk.
7. Do not carry out maintenance or repair work other
than that described in this instruction manual. Any
other work must be carried out by authorized
service centers.
8. Only use genuine replacement parts and
accessories intended for your model of saw. The
use of other parts increases the risk of accident.
9.
We accept no responsibility for accidents or
damage should non-approved bars, saw chains or
other replacement parts or accessories be used.
First aid
･Do not work alone. Always work within
shouting distance of a second person.
1. Always keep a first-aid box to hand. Replace any
items taken from it immediately.
2. Should you request assistance in the event of an
accident, state the following:
• Where did the accident happen?
• What happened?
• How many persons are injured?
• What injuries do they have?
• Who is reporting the accident?
NOTE:
Individuals with poor circulation who are exposed to
excessive vibration may experience injury to blood
vessels or the nervous system.
Vibration may cause the following symptoms to occur in
the fingers, hands or wrists: "Falling asleep
"(numbness), tingling, pain, stabbing sensation,
alteration of skin colour or of the skin.
If any of these symptoms occur, see a physician!
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence
to safety rules for the subject product. MISUSE or
failure to follow the safety rules stated in this
instruction manual may cause serious personal
injury.
1. Chain brake
applied
2. Chain brake
released
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11
DESIGNATION OF PARTS
(Nut model: the sprocket cover is tightened by nuts.)
For Model UC3050A, UC3550A, UC3550AP, UC4050A,
UC4550A
1
2
34
56
9
10
8
014372
(Lever model: the sprocket cover is tightened by lever.)
For Model UC3051A, UC3551A, UC4051A, UC4551A
1
2
345
6
9
10
8
7
014373
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12
(For all models)
14
12
11
15
13
17
16 18
014514
Cord hook
1
2
3
4
5
6
7
9
8
10
11
12
13
Spike bumper
18
14
15
16
17
Rear handle
Switch trigger
Oil filler cap
Front handle
Front hand guard
Guide bar
Saw chain
Lever
Adjusting screw/dial
Oil level sight
Rear hand guard
Lock-off button
Chain catcher
Guide bar cover
Adjusting screw for oil pump
(at the bottom)
Sprocket cover
014375
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Removing or installing sprocket cover
To remove the sprocket cover, perform the following
steps:
(For nut models)
Fig.1
Loosen the nut.
(For lever models)
Fig.2
Press and fully open the lever until it stops.
Turn the lever counterclockwise.
To install the sprocket cover, perform the above steps in
reverse.
Removing or installing saw chain
CAUTION:
• Always wear gloves when installing or removing
the saw chain.
To remove the saw chain, perform the following steps:
1. Loosen the sprocket cover.
2. (For nut models) Turn the chain adjusting screw
counterclockwise to release the saw chain
tension.
(For lever models) Turn the adjusting dial to "-"
direction to loosen the saw chain tension.
Fig.3
Fig.4
3. Remove the sprocket cover.
4. Remove the saw chain and guide bar from the
chain saw.
To install the saw chain, perform the following steps:
5. Make sure the direction of the chain. The arrow
mark on the chain shows the direction of the
chain.
Fig.5
6. Fit in one end of the saw chain on the top of the
guide bar and the other end of it around the
sprocket.
7. Place the guide bar on the chain saw.
8. Align the tension slide with the hole of the guide
bar.
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13
Fig.6
9. Holding the guide bar, and turn the chain
adjusting screw / dial to adjust the saw chain
tension.
10. Place the sprocket cover so that the hooks fit
alongside the holes and the pin fits its counterpart
on the sprocket cover.
Fig.7
11. Tighten the sprocket cover.
Fig.8
Fig.9
Adjusting saw chain tension
The saw chain may become loose after many hours of
use. From time to time check the saw chain tension
before use.
1. Loosen the sprocket cover lightly.
2. Lift up the guide bar tip slightly.
3. Turn the adjusting screw / dial to adjust saw chain
tension.
Fig.10
Fig.11
4. Tighten the saw chain until the lower side of the
saw chain fits in the guide bar rail (see circle).
5. Keep holding the guide bar lightly, tighten the
sprocket cover after adjusting the chain tension.
Make sure that the saw chain does not loose at
lower side.
Make sure the saw chain fits snugly against the lower
side of the bar.
CAUTION:
• Do not tighten the saw chain too much.
Excessively high tension of saw chain may cause
breakage of saw chain, wear of the guide bar and
breakage of the adjusting dial.
• A chain which is too loose can jump off the bar,
and therefore presents an accident risk.
• Carry out the procedure of installing or removing
saw chain in a clean place free from sawdust and
the like.
Engaging extension cord
CAUTION:
• Make sure that the extension cord is unplugged to
the mains outlet.
Fig.12
When engaging the extension cord, secure it to the
chain saw's cord with the cord hook.
Attach the cord hook about 100 - 200 mm from the
extension cord connector. This helps prevent
unintentional disconnection.
OPERATION
CAUTION:
• Hold the tool firmly with right hand on the rear
handle and left hand on the front handle when
performing the tool.
Switch action
Fig.13
CAUTION:
• Always be sure that the tool is switched off and
unplugged before checking function on the switch
trigger.
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
Lubrication
CAUTION:
• Always be sure that the tool is switched off and
unplugged before lubricating the saw chain.
Fig.14
Lubricate the saw chain and bar using biologically
degradable saw chain oil with an adhesion agent. The
adhesion agent in the saw chain oil prevents the oil from
being thrown off the saw excessively quickly. Mineral
oils must not be used, as they are harmful to the
environment.
CAUTION:
• Prevent the oil from coming into contact with the
skin and eyes. Contact with the eyes causes
irritation. In the event of eye contact, flush the
affected eye immediately with clear water, then
consult a doctor at once.
• Never use waste oil. Waste oil contains carcinogenic
substances. The contaminants in waste oil cause
accelerated wear of the oil pump, the bar and the
chain. Waste oil is harmful to the environment.
• When filling the chain saw with chain oil for the first
time, or refilling the tank after it has been completely
emptied, add oil up to the bottom edge of the filler
neck. The oil delivery may otherwise be impaired.
Fig.15
To fill the oil, perform the following steps:
1. Clean the area around the oil filler cap thoroughly
to prevent any dirt from entering the oil tank.
2. Unscrew the oil filler cap and add oil up to the
lower edge of the filler neck.
3. Screw the oil filler cap firmly back in place.
4. Wipe away any spilt chain oil carefully.
RAMIRENT

14
NOTE:
• When the chain saw is used for the first time, it may
take up to two minutes for the saw chain oil to begin
its lubricating effect upon the saw mechanism. Run
the saw without load until it does so (see "CHECKS ").
CHECKS
Before starting work, carry out the following checks:
Checking the chain tension
WARNING:
• Always withdraw the mains plug before checking
the chain tension, and wear safety gloves.
(For nut models)
Fig.16
(For lever models)
Fig.17
Make sure the saw chain fits snugly against the lower
side of the bar (see circle).
Check the chain tension frequently, as new chains are
subject to elongation.
Excessively high tension of saw chain may cause
breakage of saw chain, wear of the guide bar and
breakage of the adjusting dial.
A chain which is too loose can jump off the bar, and
therefore presents an accident risk.
If the chain is too loose: Refer to the section titled
"Adjusting saw chain tension" and adjust the saw chain
tension again.
Checking the switch action
CAUTION:
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the
"OFF" position when released.
To prevent the switch trigger from being accidentally
pulled, a lock-off button is provided.
To start the tool, depress the lock-off button and pull the
switch trigger. Release the switch trigger to stop.
Do not pull the switch trigger hard without depressing
the lock-off button. This may cause switch breakage.
Checking the chain brake
NOTE:
• If the chain saw fails to start, check whether the
chain brake is released. To release the chain
brake, pull the hand guard backwards firmly until
you feel it engage.
Fig.18
Fig.19
Check the chain brake as follows:
1. Hold the chain saw with both hands when
switching it on. Hold the rear handle with your
right hand, the front handle with your left. Make
sure that the bar and the chain do not contact
with any object.
2. First press the lock-off button, then the switch
trigger. The saw chain starts immediately.
3. Press the front hand guard forwards using the
back of your hand. Make sure that the saw chain
comes to an immediate standstill.
CAUTION:
• If the saw chain does not stop immediately, do not
use the saw under any circumstances. Consult
Makita authorized service centers.
Checking the run-down brake
Switch on the chain saw.
Release the switch trigger completely. Make sure the
saw chain comes to a standstill within a second.
CAUTION:
• If the saw chain does not stop immediately, do not
use the saw under any circumstances. Consult
Makita authorized service centers.
Checking the chain oiler
Before starting work, check the oil level in the tank, and
the oil delivery.
The oil level can be seen in the oil level sight shown in
the figure.
Fig.20
Check the oil delivery as follows:
Start the chain saw.
With the saw running, hold the saw chain approximately
15 cm above a tree trunk or the ground. If lubrication is
adequate, the oil spray will produce a light oil trace.
Observe the wind direction, and do not expose yourself
to the oil spray unnecessarily.
CAUTION:
• If an oil trace is not formed, do not use the saw.
The lifespan of the chain will otherwise be reduced.
Check the oil level. Clean the oil feed groove and
the oil feed hole in the bar (refer to
"MAINTENANCE ").
Adjusting the chain lubrication
Fig.21
You can adjust the oil pump feed rate with the adjusting
screw.
WORKING WITH THE CHAIN SAW
CAUTION:
• Always use a front handle and rear handle and
firmly hold the tool by both front handle and rear
handle during operations.
• Always secure the timber to be cut, otherwise the
cut fragments may cause personal injury.
Bucking
Fig.22
For bucking cuts, rest the spike bumper shown in the
figure on the wood to be cut.
RAMIRENT

15
With the saw chain running, saw into the wood, using
the rear handle to raise the saw and the front one to
guide it. Use the spike bumper as a pivot.
Continue the cut by applying slight pressure to the front
handle, easing the saw back slightly. Move the spike
bumper further down the timber and raise the front
handle again.
When making several cuts, switch the chain saw off
between cuts.
CAUTION:
• If the upper edge of the bar is used for cutting, the
chain saw may be deflected in your direction if the
chain becomes trapped. For this reason, cut with
the lower edge, so that the saw will be deflected
away from your body.
Fig.23
Cut wood under tension on the pressure side (A) first.
Then make the final cut on the tension side (B). This
prevents the bar from becoming trapped.
Fig.24
Limbing
CAUTION:
• Limbing may only be performed by trained persons.
A hazard is presented by the risk of kick-back.
When limbing, support the chain saw on the trunk if
possible. Do not cut with the tip of the bar, as this
presents a risk of kickback.
Pay particular attention to branches under tension. Do
not cut unsupported branches from below.
Do not stand on the felled trunk when limbing.
Burrowing and parallel-to-grain cuts
CAUTION:
• Burrowing and parallel-to-grain cuts may only be
carried out by persons with special training. The
possibility of kickback presents a risk of injury.
Fig.25
Perform parallel-to-grain cuts at as shallow an angle as
possible. Carry out the cut as carefully as possible, as
the spike bumper cannot be used.
Felling
CAUTION:
• Felling work may only be performed by trained
persons. The work is hazardous.
Observe local regulations if you wish to fell a tree.
Fig.26
−Before starting felling work, ensure that:
(1) Only persons involved in the felling operation
are in the vicinity;
(2)
Any person involved has an unhindered path of
retreat through a range of approximately 45 °
either side of the felling axis. Consider the
additional risk of tripping over electrical cables;
(3) The base of the trunk is free of foreign
objects, roots and ranches;
(4) No persons or objects are present over a
distance of 2 1/2 tree lengths in the direction
in which the tree will fall.
−Consider the following with respect to each tree:
• Direction of lean;
• Loose or dry branches;
• Height of the tree;
• Natural overhang;
• Whether or not the tree is rotten.
−Consider the wind speed and direction. Do not
carry out felling work if the wind is gusting strongly.
−Trimming of root swellings: Begin with the largest
swellings. Make the vertical cut first, then the
horizontal cut.
Fig.27
−Cut a scarf: The scarf determines the direction in
which the tree will fall, and guides it. It is made on
the side towards which the tree is to fall. Cut the
scarf as close to the ground as possible. First
make the horizontal cut to a depth of 1/5 -1/3 of
the trunk diameter. Do not make the scarf too
large. Then make the diagonal cut.
−Cut any corrections to the scarf across its entire
width.
Fig.28
−Make the back cut a little higher than the base cut
of the scarf. The back cut must be exactly
horizontal. Leave approximately 1/10 of the trunk
diameter between the back cut and the scarf.
The wood fibers in the uncut trunk portion act as a
hinge. Do not cut right through the fibers under
any circumstances, as the tree will otherwise fall
unchecked. Insert wedges into the back cut in time.
−Only plastic or aluminum wedges may be used to
keep the back cut open. The use of iron wedges is
prohibited.
−Stand to the side of the falling tree. Keep an area
clear to the rear of the falling tree up to an angle of
45 ° either side of the tree axis (refer to the " felling
area " figure). Pay attention to falling branches.
−An escape path should be planned and cleared as
necessary before cuts are started. The escape
path should extend back and diagonally to the rear
of the expected line of fall as illustrated in figure.
Fig.29
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
• Always wear gloves when performing any
inspection or maintenance.
RAMIRENT

16
• Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
result.
Carry out the maintenance work described below at
regular intervals. Warranty claims will be accepted only
if these operations have been performed regularly and
properly.
Only maintenance work described in this instruction
manual may be performed by the user. Any other work
must be carried out by MAKITA authorized service
centers.
Cleaning the chain saw
Clean the saw regularly with a clean rag. The handles,
in particular, must be kept free of oil.
Checking the plastic housing
Carry out regular visual inspections of all parts of the
housing. If any parts are damaged, have them repaired
immediately and properly in MAKITA authorized service
centers.
Sharpening the saw chain
CAUTION:
• Always withdraw the mains plug and wear safety
gloves when performing work on the saw chain.
Fig.30
Sharpen the saw chain when:
−Mealy sawdust is produced when damp wood is
cut;
−The chain penetrates the wood with difficulty, even
when heavy pressure is applied;
−The cutting edge is obviously damaged;
−The saw pulls to the left or right in the wood. The
reason for this behavior is uneven sharpening of
the saw chain, or damage to one side only.
Sharpen the saw chain frequently, but remove only
a little material each time.
Two or three strokes with a file are usually sufficient for
routine resharpening. When the saw chain has been
resharpened several times, have it sharpened in
MAKITA authorized service center.
Sharpening criteria:
−All cutter length must be equal. Cutters of differing
length prevent the chain from running smoothly,
and may cause the chain to break.
−Do not sharpen the chain once a minimum cutter
length of 3 mm has been reached. A new chain
must then be fitted.
−The chip thickness is determined by the distance
between the depth gauge (round nose) and the
cutting edge.
−The best cutting results are obtained with following
distance between cutting edge and depth gauge.
Chain blade 91PX: 0.65 mm
Fig.31
WARNING:
• An excessive distance increases the risk of kick-back.
−The sharpening angle of 30 ° must be the same on
all cutters. Differences in angle cause the chain to
run roughly and unevenly, accelerate wear, and
lead to chain breaks.
−The side plate angle of the cutter is determined by
the depth of penetration of the round file. If the
specified file is used properly, the correct side
plate angle is produced automatically.
−Side plate angle for each saw chain are as follows:
Chain blade 91PX: 80 °
Fig.32
File and file guiding
−Use a special round file (optional accessory) for
saw chains to sharpen the chain. Normal round
files are not suitable.
−Diameter of the round file for each saw chain is as
follows:
Chain blade 91PX: 4.0 mm
−The file should only engage the cutter on the
forward stroke. Lift the file off the cutter on the
return stroke.
−Sharpen the shortest cutter first. Then the length
of this shortest cutter becomes the standard for all
other cutters on the saw chain.
Fig.33
−Guide the file as shown in the figure.
−The file can be guided more easily if a file holder
(optional accessory) is employed. The file holder
has markings for the correct sharpening angle of
30 ° (align the markings parallel to the saw chain)
and limits the depth of penetration (to 4/5 of the
file diameter).
Fig.34
−After sharpening the chain, check the height of the
depth gauge using the chain gauge tool (optional
accessory).
Fig.35
−Remove any projecting material, however small,
with a special flat file (optional accessory).
−Round off the front of the depth gauge again.
Cleaning the guide bar and lubricating the
return sprocket
CAUTION:
• Always wear safety gloves for this task. Burrs
present a risk of injury.
Fig.36
Check the running surfaces of the bar regularly for
damage. Clean using a suitable tool, and remove burrs
if necessary.
RAMIRENT

17
If the chain saw receives frequent use, lubricate the
return sprocket bearing at least once a week. Before
adding new fresh grease, carefully clean the 2 mm hole
on the tip of the guide bar, then force a small quantity of
multi-purpose grease (optional accessory) into the hole.
Cleaning the oil guide
Fig.37
−Clean the oil guide groove and the oil feed hole in
the bar at regular intervals.
New saw chains
Use two or three saw chains alternately, so that the saw
chain, sprocket and running surfaces of the bar wear
evenly.
Turn the bar over when changing the chain so that the
bar groove wears evenly.
CAUTION:
• Only use chains and bars which are approved for
this model of saw (refer to "SPECIFICATIONS").
Fig.38
Before fitting a new saw chain, check the condition of
the sprocket.
CAUTION:
• A worn sprocket damages a new saw chain. Have
the sprocket replaced in this case.
Always fit a new locking ring when replacing the sprocket.
Maintaining the chain and run-down brakes
The braking systems are very important safety features.
Like any other component of the chain saw, they are
subject to a certain degree of wear. They must be
inspected regularly by MAKITA authorized service
centers. This measure is for your own safety.
Replacing carbon brushes
Fig.39
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
Fig.40
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
After replacing brushes, plug in the tool and break in
brushes by running tool with no load for about 10
minutes.
Storing tool
Biologically degradable saw chain oil can only be kept
for a limited period. Beyond two years after manufacture,
biological oils begin to acquire an adhesive quality, and
cause damage to the oil pump and components in the
lubricating system.
−Before taking the chain saw out of service for a
longer period, empty the oil tank and fill it with a
small quantity of engine oil (SAE 30).
−Run the chain saw briefly to flush all residue of the
biological oil out of the tank, lubricating system
and saw mechanism.
NOTE:
• When the chain saw is taken out of service, small
quantities of chain oil leaks from it for some time
afterwards. This is normal, and is not a sign of a
fault.
Store the chain saw on a suitable surface.
Before returning the chain saw to service, fill up with
fresh BIOTOP saw chain oil.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized Service Centers,
always using Makita replacement parts.
RAMIRENT

18
TROUBLE SHOOTING
Before asking for repairs, conduct your own inspection
first. If you find a problem that is not explained in the
manual, do not attempt to dismantle the tool. Instead,
ask Makita Authorized Service Centers.
Nooil on the chain.
Chaindoes not stop
even the chainbrake is
engaged.
The tool vibrates
abnormally.
Malfunction status
Possible cause Remedy
The chainsaw does not
start.
Chaindoes not run.
Insufficient performance.
Cabledefective.
Chainbrake isengaged.
Carbon brush worn down.
Oil tank isempty.
Oil guide groove isdirty.
Oil pump adjusting screw
incorrectly adjusted.
Brake band worn down.
Loose guide bar or saw
chain.
Nopower supply.
Release chainbrake.
Ask your local authorized service center for repair.
Fill the oil tank.
Clean the groove.
Adjust the oil pump feed rate.
Adjust the guide bar and saw chaintension.
Tool malfunction.
Tool malfunction.
Connect to the power supply.
Check the power supply.
Stop using the tool immediately, and ask your local
authorized service center.
Stop using the tool immediately, and ask your local
authorized service center.
Stop using the tool immediately, and ask your local
authorized service center.
Stop using the tool immediately, and ask your local
authorized service center.
014314
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Saw chain
• Guide bar cover
• Guide bar
• Saw chain oil
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.
RAMIRENT

19
SVENSKA (Originalbruksanvisning)
Förklaring till översiktsbilderna
2-1. Spak
2-2. Kopplingskåpa
3-1. Inställningsskruv
4-1. Justeringsratt
5-1. Kedjehjul
6-1. Svärd
6-2. Hål
7-1. Krok
7-2. Hål
7-3. Stift
9-1. Spak
9-2. Kopplingskåpa
10-1. Lossa
10-2. Dra fast
10-3. Kedjejusteringsskruv
10-4. Svärd
10-5. Sågkedja
11-1. Lossa
11-2. Dra fast
11-3. Justeringsratt
11-4. Svärd
11-5. Sågkedja
12-1. Kabelhake
12-2. Maskinens kabel
12-3. Förlängningssladd
12-4. Stickpropp och uttag (formen kan
variera mellan länder)
13-1. Säkerhetsknapp
13-2. Avtryckare
15-1. Oljetankens lock
15-2. Rem
16-1. Lossa
16-2. Dra fast
16-3. Kedjejusteringsskruv
16-4. Svärd
16-5. Sågkedja
17-1. Lossa
17-2. Dra fast
17-3. Justeringsratt
17-4. Svärd
17-5. Sågkedja
18-1. Främre handskydd
18-2. Lås
18-3. Lås upp
19-1. Främre handskydd
19-2. Lås upp
19-3. Lås
20-1. Oljenivåfönster
22-1. Barkstöd
26-1. Fällområdet
29-1. Fällriktning
29-2. Riskzon
29-3. Flyktväg
31-1. Skärlängd
31-2. Avstånd mellan skärtand och
underställningsklack
31-3. Minst 3 mm
32-1. Stötvinkel
37-1. Oljekanal
37-2. Oljematningshål
38-1. Kedjehjul
39-1. Slitmarkering
40-1. Kolhållarlock
40-2. Skruvmejsel
SPECIFIKATIONER
Modell UC3050A UC3051A UC3550A UC3550AP UC3551A UC4050A UC4051A UC4550A UC4551A
Max. kedjehastighet 14,5 m/s (870 m/min)
Svärdlängd 300 mm 350 mm 400 mm 450 mm
Skärlängd 260 mm 320 mm 355 mm 415 mm
Standardsvärd
Svärdtyp Svärd med noshjul
Typ 91PX
Delning 3/8"
Standard
sågkedja Antal drivlänkar 46 52 56 62
Rekommenderad svärdlängd 300 - 450 mm
Längd (utan svärd) 505 mm
Vikt 5,4 kg 5,5 kg 5,5 kg 5,6 kg 5,5 kg 5,6 kg 5,7 kg
Förlängningssladd (tillbehör) DIN 57282/HO 7RN -F L=30 m max.,3x1,5 mm2
• På grund av vårt pågående program för forskning och utveckling kan dessa specifikationer ändras utan föregående meddelande.
• Specifikationerna kan variera mellan olika länder.
• Vikt i enlighet med EPTA-procedur 01/2003
END218-7
Symbol
Följande visar symbolerna som används för
utrustningen. Se till att du förstår innebörden innan du
använder borrmaskinen.
･Läs igenom bruksanvisningen och följ
varningar och säkerhetsanvisningar.
･Använd skyddsglasögon.
･Använd hörselskydd.
･DUBBEL ISOLERING
･Försiktigt: extra försiktighet och
uppmärksamhet krävs!
･Försiktigt: dra ur nätsladden
omedelbart om den skadas!
･Försiktigt: bakåtkast!
･Skydda mot regn och fukt!
･Använd hjälm, skyddsglasögon och
hörselskydd!
RAMIRENT

20
･Använd skyddshandskar!
･Dra ut nätsladden!
･Första hjälpen
･Tillåten maximal skärlängd
･Kedjans rörelseriktning
･Kedjeolja
･Kedjebroms släppt
･Kedjebroms tillslagen
･Förbjudet!
･Gäller endast EU-länder
Elektrisk utrustning får inte kastas i
hushållssoporna!
Enligt EU-direktivet som avser äldre
elektrisk och elektronisk utrustning och
dess tillämpning enligt nationell
lagstiftning ska uttjänt elektriskt
utrustning sorteras separat och lämnas
till miljövänlig återvinning.
ENE085-1
Användningsområde
Verktyget är avsett för kapning av virke och stockar.
ENF002-2
Strömförsörjning
Maskinen får endast anslutas till elnät med samma
spänning som anges på typplåten och med enfasig
växelström. De är dubbelisolerade och får därför också
anslutas i ojordade vägguttag.
ENG905-1
Buller
Typiska A-vägda bullernivån är mätt enligt EN60745:
Ljudtrycksnivå (LpA): 90,8 dB (A)
Ljudeffektnivå (LWA): 101,8 dB (A)
Mättolerans (K): 2,5 dB (A)
Använd hörselskydd
ENG900-1
Vibration
Vibrationens totalvärde (tre-axlars vektorsumma) mätt
enligtEN60745 :
Arbetsläge: sågning i trä
Vibrationsemission (ah): 5,2 m/s2
Mättolerans (K): 1,5 m/s2
ENG901-1
• Det deklarerade vibrationsemissionsvärdet har
uppmätts i enlighet med standardtestmetoden och
kan användas för jämförandet av en maskin med
en annan.
• Det deklarerade vibrationsemissionsvärdet kan
också användas i preliminär bedömning av
exponering för vibration.
VARNING!
• Viberationsemissionen under faktisk användning
av maskinen kan skilja sig från det deklarerade
emissionsvärdet, beroende på hur maskinen
används.
• Se till att hitta säkerhetsåtgärder som kan skydda
användaren och som grundar sig på en
uppskattning av exponering i verkligheten (ta med
i beräkningen alla delar av användandet såsom
antal gånger maskinen är avstängd och när den
körs på tomgång samt då startomkopplaren
används).
ENH030-5
Gäller endast Europa
EU-konformitetsdeklaration
Makita försäkrar att följande maskiner:
Maskinbeteckning:
Kedjesåg
Modellnr./-typ: UC3050A, UC3550A, UC4050A,
UC4550A, UC3051A, UC3551A, UC3550AP, UC4051A,
UC4551A
Specifikationer: se tabellen “SPECIFIKATIONER“.
Följer följande EU-direktiv:
2000/14/EU, 2006/42/EU
De är tillverkade i enlighet med följande standard eller
standardiseringsdokument:
EN60745
EU:s typgodkännande enligt intyg nr.5514056.14005
EU:s typgodkännande enligt 2006/42/EU har utförts av:
DEKRA Testing and Certification GmbH
Enderstraße 92b
01277 Dresden
Tyskland
Identifieringsnr: 2140
Den tekniska dokumentationen i enlighet med
2006/42/EG finns tillgänglig från:
Makita, Jan-Baptist Vinkstraat 2, 3070, Belgium
Den bedömning av överensstämmelse som krävs av
direktiv 2000/14/EU var i enlighet med bilaga V
Uppmätt ljudeffektnivå: 101,9 dB (A)
Garanterad ljudeffektnivå: 103 dB (A)
RAMIRENT