EK7300, 7301
EK8100
Operator’s and Safety Manual
for Gasoline Power Cuts (page 2 - 32)
Manuel d’instructions et de sécurité
de découpeuse thermiques (page 33 - 63)
WARNING!
Read and understand this Manual. Always follow safety precautions in the Operator’s and Safety Manual. Improper use can cause serious injury! Preserve this Manual carefully!
WARNING!
FUELS WITH MORE THAN 10% ETHANOL ARE NOT APPROVED FOR USE IN MAKITA 2-STROKE ENGINES!
Use of alternative fuels, such as E-20 (20% ethanol), E-85 (85% ethanol) or any fuels not meeting MAKITA requirements are not approved for use in MAKITA 2-stroke gasoline engines!
USE OF ALTERNATIVE FUELS CAN CAUSE THE FOLLOWING PROBLEMS:
Poor engine performance, loss of power, overheating, fuel vapor lock, improper clutch engagement, premature deterioration of fuel lines, premature deterioration of gaskets,
premature deterioration of carburetors.
USING ALTERNATIVE FUELS AND/OR 2-STROKE OILS NOT ACCORDING TO JASO FC OR ISO-L-EGD IN MAKITA 2-STROKE ENGINES WILL VOID YOUR ENGINE WARRANTY!
ATTENTION !
Suivez toujours les conseils de sécurité du présent manuel d’emploi et de sécurité. Une utilisation incorrecte de la tronçonneuse peut entraîner des blessures graves!
Lisez et comprenez ce manuel. Conservez avec soin ce manuel!
ATTENTION !
LES CARBURANTS CONTENANT PLUS DE 10 % D’ÉTHANOL NE SONT PAS AUTORISÉS POUR L’UTILISATION DANS LES MOTEURS 2 TEMPS!
Les carburants alternatifs, tels que E-20 (20 % d‘éthanol), E-85 (85 % d’éthanol) ou tout autre carburant n’étant pas conformes aux exigences MAKITA ne sont pas autorisés
pour l’utilisation dans les moteurs essence à 2 temps MAKITA!
L’UTILISATION DE CARBURANTS ALTERNATIFS PEUT CAUSER LES PROBLÈMES SUIVANTS:
Faible performance moteur, Perte de puissance, Surchauffe, Bouchons de vapeur dans la conduite d’essence, Embrayage incorrect, Détérioration prématurée des conduites
d’essence, Détérioration prématurée des joints d’étanchéité, Détérioration prématurée des carburateurs.
L’UTILISATION DE CARBURANTS ALTERNATIFS ET/OU D’HUILES 2 TEMPS NON-CONFORMES À LA NORME JASO FC OU ISO-L-EGD DANS LES MOTEURS À 2 TEMPS
MAKITA ANNULERA VOTRE GARANTIE MOTEUR!
2
Table of contents Page
Packing ................................................................................ 2
Delivery inventory .............................................................. 3
Symbols ............................................................................... 3
SAFETY PRECAUTIONS
Intended use ................................................................... 4
General precautions ....................................................... 4
Protective equipment ...................................................4-5
Fuels / Refuelling ............................................................ 5
Putting into operation ...................................................... 5
Cutting discs ................................................................... 6
Kickback and lock-in ....................................................... 7
Working behavior / Method of working ............................7
Always observe the following when using
synthetic resin cutting discs ............................................. 8
Cutting metal ................................................................... 8
Cutting masonry and concrete ..................................... 8-9
Transport and storage ..................................................... 9
Maintenance ................................................................. 10
First aid ......................................................................... 10
Disposal and environmental protection ......................... 10
Technical data ................................................................... 11
Denomination of components ......................................... 12
PUTTING INTO OPERATION
Mounting the cutting disc ............................................... 13
Tightening the V-belt / Checking V-belt tension ............ 14
Installing the pressure water system .......................14-15
Fuels / Refuelling .....................................................15-16
Starting the engine ........................................................ 17
Cold-starting ................................................................. 18
Warm-starting ............................................................... 18
Stop engine ................................................................... 18
Adjusting the carburetor .................................................. 19
MAINTENANCE
Changing the V-belt ...................................................... 20
Cleaning the protection hood ........................................ 21
Cleaning / changing the air lter ..............................21-22
Replacing the spark plug .............................................. 23
Replacing the suction head .......................................... 23
Replacing the starter cable ........................................... 24
Replacing the return spring ........................................... 25
Instructions for periodic maintenance ........................... 29
Cutting attachment in central / side position ................. 26
Repositioning the cutting attachment .......................26-27
Replacing/cleaning the spark arrester screen .............. 27
SPECIAL ACCESSORIES
Diamond cutting discs, trolley, water tank
and pressure water system ............................................ 28
Service, spare parts and guarantee ...........................29-30
Troubleshooting ............................................................... 30
Extract from spare parts list ....................................... 31-32
Accessories .............................................................31-32
Thank you for purchasing a MAKITA product!
Congratulations on choosing a MAKITA Power Cut cutoff saw!
We are condent that you will be satised with this modern
piece of equipment. Like our chain saws, the MAKITA Power
Cuts feature specially designed high-performance engines
with outstanding power-to-weight ratios, for heavy-duty yet
lightweight tools.
Other advantages of the MAKITA Power Cuts:
• Sturdy construction and high reliability.
• Maintenance-free electronic ignition, hermetically sealed to
protect against dust and moisture. This spark ignition system
complies with the Canadian standard ICES-002.
• Vibration damping with the MAKITA 2-mass system (D2M) for
tireless working even when guiding the Power Cut by hand.
• Five-stage air-lter system for reliable working even under
very dusty conditions.
• Two options for mounting the cutter attachment: Either cen-
trally, for good balance when guiding the unit manually, or on
the side, for ush cuts along walls or curbsides or horizontally
directly above the ground.
• Extensive range of resin-bonded and diamond grit cutting
discs, trolley with dust catcher, and systems for supplying
water to the disc.
We want you to be satised with your MAKITA product.
In order to guarantee the optimal function and performance of
your Power Cut and to ensure your personal safety we would
request you to perform the following:
Read this Operator’s and Safety Manual carefully before
putting the Power Cut into operation for the rst time,
and strictly observe the safety regulations! Failure to ob-
serve these precautions can lead to severe injury or death!
WARNING!
The ignition system of this equipment produces an electro-
magnetic eld. This eld may interfere with some medical
devices such as a pacemaker. To reduce the risk of serious
or fatal injury, persons with a medical device should consult
with their physician and the manufacturer of the device before
operating this equipment.
Only for EK7300, 7301: The Emissions Compliance Period
referred to on the emission Compliance label indicates the
number of operating hours for which the engine has been shown
to meet federal emissions requirements.
Category C= 50 hours, B= 125 hours, and A= 300 hours.
ssociated health risks, before using this tool you should con-
sult the pacemaker manufacturer or your physician.
3
Delivery inventory
1. Power Cut
2. Cutting disc (not in the general scope of delivery. Country-specic)
3. Adapter ring 0.8"/1.0" (not in the general scope of delivery. Country-specic)
4. Screwdriver (for carburetor adjustment)
5. Offset screwdriver
6. Universal wrench 13/19
7. Operator’s and safety manual (not shown)
Symbols
You will notice the following symbols on the Power Cut and in the operator’s and safety manual:
In case one of the parts listed should not be included in the
delivery inventory, please consult your sales agent.
Never use carbide tipped, circular saw
blades or any kind of wood cutting
blades!
Never use damaged cutting discs!
Combination Choke, Start/Stop (I/O)
switch
Starting procedure
(Press decompression valve,
Engine - manual start)
Stop engine!
Warning!
Kickback!
Fuel and oil mixture
First aid
Recycling
Do not touch hot surfaces!
Read operator’s and safety manual
and follow the warning- and safety
precautions!
Particular care and caution!
Forbidden!
Wear helmet and eye, respiratory
and hearing protection!
Wear protective gloves!
Wear respiratory protection!
Hazardous dust and/or
gas emission!
Fire hazard from ying sparks!
No smoking!
No open re!
Direction of cutting wheel rotation
Warning: the max. peripheral
speed of the cutting disc is 80 m/s!
Cutting disc dimensions
6543
2
1
4
2
3
1
4
SAFETY PRECAUTIONS
Intended use
Power Cut
Use the Power Cut cutoff saw outdoors only, for trimming and cut-
ting suitable materials, using cutting discs rated for this machine.
Improper use:
Never use the cutoff saw cutting discs for grinding or sanding (using
the side of the cutting disc to remove material). The disc can break!
Never use the Power Cut with saw blades, cutter blades, brushes,
carbide tipped, wood cutting blades etc.
Unauthorised users:
Persons unfamiliar with the operator’s manual, children, young
people, and persons under the inuence of alcohol, drugs or med-
ications must not use the Power Cut.
General precautions
- The operator MUST read this operator’s manual to ensure
safe operation (even if you already have experience in using
cutoff saws). It is important to be familiar with the operation of
this particular cutoff saw. Users insufciently informed will en-
danger themselves as well as others due to improper handling.
- Let only persons who have experience in using cutoff saws work
with this unit. When letting another person use the Power Cut,
this operator’s manual must be provided along with it.
- First-time operators should ask a specialist to instruct them in
working with gasoline-powered cutoff saws.
- Children and persons under 18 years of age must not be allowed
to use this Power Cut. Persons over the age of 16 years may,
however, use the Power Cut for the purpose of being trained
as long as they are under the supervision of a qualied trainer.
- Working with the Power Cut requires high concentration.
- Operate the Power Cut only if you are in good physical condition.
If you are tired, your attention will be reduced. Be especially
careful at the end of a working day. Perform all work calmly and
carefully. The user has to accept liability for others.
- Never work while under the inuence of alcohol, drugs, medi-
cation or other substances which may impair vision, dexterity
or judgement.
- A re extinguisher must be available in the immediate vicinity
when working in easily inammable vegetation or when it has
not rained for a long time (danger of re).
- Asbestos and other materials that can release toxins may be cut
only with the necessary safety precautions and after notication
of the proper authorities and under their supervision or that of
a person appointed by them.
- The use of dust-reduction devices is urgently recommended
(see Accessories, pressure water tank, water tank).
Protective equipment
- In order to avoid head, eye, hand or foot injuries as well as
to protect your hearing the following protective equipment
must be used during operation of the Power Cut:
When using personal protective equipment, ensure com-
pliance with ANSI Z87.1!
- The kind of clothing should be appropriate, i. e. it should be
tight-tting but not be a hindrance. Clothing in which grains of
material can accumulate (trousers with cuffs, jackets and trou-
sers with wide-open pockets, etc.) must not be worn, particularly
when cutting metal.
- Do not wear any jewellery or clothing that can get caught or
distract from the operation of the Power Cut.
- It is necessary to wear a protective helmet whenever working
with the Power Cut. The protective helmet (A) is to be checked
in regular intervals for damage and is to be replaced after 5
years at the latest. Use only approved protective helmets.
- The helmet visor (B) protects the face from dust and material
grains. In order to prevent injuries to eyes and face, always
wear protective goggles (C) or visor when using the Power
Cut.
- To prevent hearing damage, always wear suitable personal
hearing protection. (ear muffs (D), ear plugs, etc.). Octave
brand analysis upon request.
- When dry-cutting dust-producing materials such as stone
or concrete, always wear approved respiratory protection
(E).
- Work gloves (F) of tough leather are part of the required
work kit of the Power Cut and must always be worn when
working with the Power Cut.
5
- Always wear safety shoes or boots (G) with steel toes, non-skid
soles, and leg protectors when working with the Power Cut.
Safety shoes equipped with a protective layer provide protection
against cuts and ensure a secure footing.
- Always wear a work suit (H) of tough material with sufcient
ame-retardant qualities whenever working with the cutoff saw.
Fuels / Refuelling
- Go to a safe, level place before refuelling. Never refuel while
on scaffolding, on heaps of material, or in similar places!
- Switch off the engine before refuelling the Power Cut.
- Do not smoke or work near open res (6).
- Let the engine cool down before refuelling.
- Fuels can contain substances similar to solvents. Eyes and skin
should not come in contact with mineral oil products. Always wear
protective gloves when refuelling (not the regular work gloves!).
Frequently clean and change protective clothes. Do not breathe
in fuel vapors. Inhalation of fuel vapours can be hazardous to
your health.
- Do not spill fuel. If a spill occurs, clean off the Power Cut im-
mediately. Fuel should not come in contact with clothes. If your
clothes have come in contact with fuel, change them at once.
- Ensure that no fuel oozes into the soil (environmental protection).
Use an appropriate base.
- Refuelling is not allowed in closed rooms. Fuel vapors will ac-
cumulate near the oor (explosion hazard).
- Ensure to rmly tighten the screw cap of the fuel tank.
- Before starting the engine, move to a location at least 3 meters
(approx. 10 feet) from where you fuelled the Power Cut (7), but
not within the extended swing range of the cutting disc (direction
of sparks).
- Fuel cannot be stored for an unlimited period of time. Buy only
as much as will be consumed in the near future.
- When making up the gasoline/oil mixture, always put the oil in
the mixing container rst, and then the gasoline.
- Use only approved and marked containers for the transport and
storage of fuel.
- Keep fuel away from children!
Putting into operation
- Do not work on your own. There must be someone around
in case of an emergency (within shouting distance).
- Observe all anti-noise regulations when working in residential
areas.
- Never use the Power Cut near inammable materials or
explosive gases! The Power Cut can create sparks leading
to re or explosion!
- Make sure that all persons within 30 meters (100 feet), such
as other workers, are wearing protective gear (see "Protective
Equipment") (8). Children and other unauthorized persons must
remain more than 30 meters away from the working area. Keep
an eye out for animals as well (9).
- Before starting work the Power Cut must be checked for
perfect function and operating safety according to the pre-
scriptions. In particular, make sure that the cutting wheel is in
good condition(replace immediately if torn, damaged or bent), the
cutting wheel is properly mounted, the protective hood is locked
in place, the hand guard is properly mounted, the V-belt has the
proper tension, the throttle moves easily and the half-throttle lock
button functions properly, the grips are clean and dry, and the
combination switch functions properly (Start/Stop (I/O) switch,
choke). Visually inspect the mufer for damage and possible dirt
in the mufer area.
- Start the Power Cut only after complete assembly and inspection.
Never use the Power Cut when it is not completely assembled.
7
6
5
9
8
30 m
3 meters
=
wearing Protective Equipment
6
10
11
13
12
min. 5 m
14
● Maintenance
● Refuelling
● Changing cutoff discs
● Repositioning the
cutting attachment
● Stopping work
● Transport
● Putting out of function
Cutoff discs
- The protection hood must always be on! Change discs only
with the engine off!
- There are two basic types of cutoff discs:
- For metal (hot cutting)
- For masonry (cold cutting)
WARNING!
Never use carbide tipped, circular saw blades or any kind of wood
cutting blades. Never cut any type of wood. Reactive forces can
cause severe personal injury from blade contact or thrown tips.
NOTE: When using diamond cutoff discs, always make sure to observe
the "direction of rotation" markings. Diamond discs should only be
used for cutting masonry/brick/ concrete etc.
- Cutoff discs are intended only for radial loading, i.e. for cutting. Do
not grind with the sides of the cutting disc! This will break the disc
(10)!
Caution!
Never change direction (turning radius less than 5 meters (16
feet), exert lateral (sideways) pressure, or tip the Power Cut during
cutting (11)!
- Use a cutting disc only for cutting the materials it is intended for.
The proper type of disc must be used, for either metals or masonry.
- The arbor hole of the cutting disc must be an exact t with the arbor
or shaft. If the arbor hole is larger, it must be tted with an adapter
ring (available as an accessory).
- The cutting disc must be rated for freehand cutting at up to 3850
rpm or 80 m/sec for 400 mm discs, 4370 rpm or 80 m/sec for 350
mm discs, or up to 5100 rpm or 80 m/s for 300 mm discs. Use only
cutting discs that comply with EN 12413, EN 13236.
- The disc must be free of defects (12). Do not use defective cutting
discs.
Always tighten the cutting disc mounting bolt to a torque of 30
Nm. Otherwise, the cutting disc can twist.
- Before starting the cutting disc, make sure you have a steady footing.
- Put the Power Cut into operation only as described in this oper-
ator’s manual (13). Always place your left foot in the rear handle
and grasp the other handle rmly (with thumb and ngers). Other
starting methods are not allowed.
- When starting the Power Cut it must be well supported and securely
held. The cutting disc must not be touching anything.
- If the cutting disc is new, test it by running it at least 60 seconds at
top speed. When doing this, make sure that no persons or body parts
are in the extended swing range of the disc, in case it is defective
and ies apart.
- When working with the Power Cut always hold it with both
hands. Take the back handle with the right hand and the tubular
handle with the left hand. Hold the handles tightly with your thumbs
facing your ngers.
- CAUTION: When you release the throttle lever the disc will
keep spinning for a short period of time (free-wheeling effect).
- Continuously ensure that you have a safe footing.
- Hold the Power Cut such that you will not breathe in the
exhaust gas. Do not work in closed rooms or in deep holes
or ditches (danger of poisoning by fumes).
- WARNING – CARBON MONOXIDE PRODUCED DURING USE
CAN KILL – DO NOT USE POWER CUTTER INDOORS – MAKE
SURE THERE IS PROPER VENTILATION WHEN USING POWER
CUTTER IN TRENCHES OR OTHER CONFINED SPACES.
- Switch off the Power Cut immediately if you observe any
changes in its operating behavior.
- Switch off the engine before inspecting the V-belt tension or
tightening it, replacing the cutting wheel, repositioning the cutter
attachment (side or middle position) or eliminating faults (14).
- Turn off the engine immediately and check the disc if you hear or
feel any change in cutting behaviour.
- Turn off the Power Cut when taking a break or stopping work (14).
Place the unit in such a way that the disc is not touching anything
and cannot endanger anyone.
- Do not put the overheated Power Cut in dry grass or on any inam-
mable objects. The mufer is very hot (danger of re).
- IMPORTANT: After wet cutting, rst turn off the water feed and then
let the disc run at least 30 seconds, to ing off the remaining water
and prevent corrosion.
7
Kickback, lock-in and gyroscopic forces
- When working with the Power Cut there is a danger of kickback
and lock-in.
- Kickback occurs when the top of the cutting disc is used for
cutting (15).
- This causes the Power Cut to be thrown back toward the user
with great force and out of control. Risk of injury!
To prevent kickback, observe the following:
- Never cut with the section of the cutting disc shown in gure 15.
Be especially careful when reinserting the disc into cuts
that have already been started!
- Lock-in occurs when the cut narrows (crack, or workpiece under
stress).
- This causes the Power Cut to suddenly jump forward, out of
control and with great force. Risk of injury!
To prevent lock-in, observe the following:
- When reinserting the disc into previous cuts, have the Power
Cut running at top speed. Always cut at top speed.
- Always support the workpiece so that the cut is under tension
(16), so that the cut does not press together and jam the cutting
disc as it proceeds through the material.
- When starting a cut, apply the disc to the workpiece with care.
Do not just shove it into the material.
- Never cut more than one piece at a time! When cutting, make
sure that no other workpiece comes into contact.
- Gyroscopic forces come into play when handling a power cutter
with a rapidly rotating composite wheel.
- The power cut will react in an uncontrolled manner. There is a
danger that injuries may occur.
In order to prevent gyroscopic forces developing, please
note the following: Do not rotate the machine rapidly about
its longitudinal axis!
Working behavior / Method of working
- Check the integrity of the composite wheel both before and after
tting it to the machine.
- Before starting work, check the work area for any hazards
(electrical wires, inammable substances). Clearly mark the
work area (for example with warning signs or by cordoning off
the area).
- When working with the Power Cut hold it rmly by the front and
rear handles. Never leave the Power Cut unattended!
- Use the Power Cut at high speed as far as possible (see “Tech-
nical Data”).
- Only use the Power Cut during good light and visibility periods.
Be aware of slippery or wet areas, and of ice and snow (risk of
slipping).
- Never work on unstable surfaces. Make sure that there are no
obstacles in the working area, risk of stumbling. Always ensure
that you have a safe footing.
- Never cut above your shoulder height (17).
- Never stand on a ladder to cut (17).
- Never use the Power Cut while standing on scaffolding.
- Do not lean over too far when working. When putting down and
picking up the Power Cut, do not bend over from the waist, but
instead bend in the knees. Save your back!
- Guide the Power Cut in such a way that no part of your body
is within the extended swing range of the disc (18).
- Use cutting discs only for the materials for which they are de-
signed!
- Use cutting discs only for the materials for which they are de-
signed. Do not use the Power Cut to lift up and shovel away
pieces of material and other objects.
Important! Before cutting, remove all foreign objects, such as
rocks, gravel, nails etc. from the cutting area. Otherwise, such
objects can be ung away by the disc with great speed. Injury
hazard!
- When cutting workpieces down to length use a rm support.
If necessary, secure the workpiece from slipping, but do not
steady it with your foot or allow another person to hold it.
- When cutting round items, always secure them against rotation.
- When guiding the Power Cut by hand, use the side mounting
position of the cutter attachment only when actually necessary.
Otherwise, always use the central position. This gives the unit
a better balance, for reduced operator fatigue.
18
16
17
15
8
When using synthetic resin cutting discs, always ob-
serve the following:
CAUTION:
- Synthetic resin cutting discs can absorb moisture. This
moisture can cause the disc to become unbalanced at high
speed. This imbalance can cause the disc to break.
- Do not cool resin cutting discs with water or other uids.
- Do not expose resin cutting discs to high humidity or rain!
Do not use resin cutting discs past their use-by date (expira-
tion date)! The date (quarter and year) is stamped on the disc’s
arbor ring.
EXAMPLE: 04 / 2019
This cutting disc can be used through the end of the fourth quarter
of 2019, if properly stored and correctly used.
Cutting metals
IMPORTANT!
Always wear approved respiratory protection!
Materials that can release toxic substances may be cut only
after notifying the proper authorities and under their super-
vision or that of a person appointed by them.
CAUTION!
The rapid rotation of the cutting disc heats metal and melts it at
the point of contact. Swing the guard as far down as possible
(19) in order to direct the stream of sparks forward, away from
the operator (re hazard).
- Determine the cut line, mark the cut and apply the disc to the
material at moderate speed, to cut a guide groove before going
to top speed and applying more pressure to the Power Cut.
- Keep the disc straight and vertical. Do not tip it, as this can
break it.
- The best way to get a good, clean cut is to pull or move the
Power Cut back and forth. Do not simply press the disc into
the material.
- Thick round stock is best cut in stages (20).
- Thin tubing and pipes can be cut with a simple downward cut.
- Cut large-diameter pipes as for round stock. To prevent tipping
and for better control, do not let the disc sink too deeply into the
material. Instead, always cut shallow around the whole piece.
- Worn discs have a smaller diameter than new discs, so that at
the same engine speed they have a lower effective circumfer-
ential speed and therefore do not cut as well.
- Cut I-beams and L-bars in steps; see Figure 21.
- Cut bands and plates like pipes: along the wide side with a long
cut.
- When cutting material under stress (supported material or mate-
rial in structures), always make a notch in the thrust (pressure)
side, and then cut from the tension side, so that the disc does
not lock in. Secure cutoff material from falling!
CAUTION!
If there is a chance that the material is under stress, be pre-
pared for it to kick back. Make sure you can get out of the
way if you have to!
Be particularly careful in scrap-metal yards, junkyards, at acci-
dent sites, and with haphazard piles of material. Precariously
balanced pieces or pieces under stress can act in unpredictable
ways, and may slide, jump out, or burst. Secure cutoff material
from falling! Always exercise extreme caution and use only
equipment that is in perfect working order.
Observe the accident-prevention rules and regulations of your
employer and/or insurance organization.
19
20
21
Cutting masonry and concrete
IMPORTANT!
Always wear approved respiratory protection!
Asbestos and other materials that can release toxic sub-
stances may be cut only after notifying the proper authorities
and under their supervision or that of a person appointed
by them. When cutting prestressed and reinforced concrete
piles, follow the instructions and standards of the respon-
sible authorities or the builder of the structural member.
Reinforcement rods must be cut in the prescribed sequence
and in accordance with applicable safety regulations.
NOTE:
Mortar, stone, and concrete develop large quantities of dust during
cutting. To increase the lifetime of the cutting disc (by cooling),
to improve visibility, and to avoid excessive dust creation, we
strongly recommend wet cutting instead of dry cutting.
9
In wet cutting, the disc is wetted at an equal rate on both sides
by a trickle of water. MAKITA offers the right accessories for all
wet cutting applications (see also "SPECIAL ACCESSORIES").
- Remove foreign objects such as sand, stones and nails found
within the working area. Caution: Watch out for electric wires
and cables!
The rapid rotation of the cutting disc at the point of contact
throws fragments out of the cut groove at high speed. For
your safety, swing the protection hood down as far as possi-
ble (23), so that material fragments are thrown forward, away
from the operator.
- Mark the cut, and then make a groove about 5 mm (just under
1/5") along the entire length of the planned cut. This groove will
then guide the Power Cut accurately guring the actual cutoff.
NOTE:
For long, straight cuts we recommend using a trolley (24, see
also "SPECIAL ACCESSORIES"). This makes it much easier to
guide the unit straight.
- Perform the cut with a steady back-and-forth motion.
- When cutting slabs to size, you need not cut through the entire
material thickness (creating unnecessary dust). Instead, simply
make a shallow groove, and then knock off the excess material
cleanly on a at surface (25).
CAREFUL!
When cutting into lengths, cutting through material, making cut-
outs, etc., always make sure to plan the direction and sequence
of cuts in such a way that the disc does not get jammed by the
cut-off piece, and that no persons can be injured by falling pieces.
Transport and storage
- Always turn off the Power Cut when transporting it or
moving it from place to place on a site (26).
- Never carry or move the unit with the engine on or the
disc moving!
- Carry the unit only by the tubular (middle) handle with the cut-
ting disc pointing behind you (26). Avoid touching the exhaust
mufer (burn hazard!)
- When moving the Power Cut over longer distances, use a
wheelbarrow or wagon.
- When transporting the Power Cut in a vehicle, make sure it is
securely positioned in such a way that no fuel can leak out.
Always remove the cutting disc before transporting the unit in
a vehicle. Before transporting in a vehicle, allow the Power Cut
to cool off completely. Note: Mufers with catalytic converters
take longer to cool off!
- The Power Cut should be stored safely in a dry place. It must
not be left outdoors! Always dismount the cutting disc before
storage. Keep the Power Cut away from children.
- Before long-term storage and before shipping the Power
Cut, follow the instructions in the chapter on "Periodic
care and maintenance". ALWAYS empty the fuel tank and
run the carburetor dry.
- When putting cutting discs in storage, be careful to:
• Clean and dry them well. CAUTION: Do NOT clean synthetic
resin cutting discs with water or other uids!
• Store them lying down at.
• Avoid dampness, freezing temperatures, direct sunshine,
high temperatures and temperature uctuations, as these
can cause breakage and splintering.
• Before re-using a resin cutting disc, make sure of the use-by
(expiration) date (quarter and year, stamped on the arbor ring).
If this date has been exceeded, do NOT use the cutting disc.
- Always check new cutting discs or cutting discs that have
been in storage to make sure that they are free of defects
and before the rst cut test-run the tool at top speed for at
least 60 seconds. Keep body parts and people well away out
of range of the direction of the cutting disc during this test.
23
26
25
24
10
Maintenance
- Before performing maintenance work switch off the Power
Cut (27) and pull out the plug cap.
- Allow the Power Cut to cool off before doing any mainte-
nance work (burn hazard)!
- Power Cuts with catalytic converter take longer to cool
down!
- Always check the Power Cut before using it to make sure that
it is in good working order. In particular, make sure that the
cutting disc is properly mounted. Make sure that the cutting
wheel is undamaged and suitable for the job it will be used for.
- Operate the Power Cut only at a low noise and emission level.
For this ensure the carburetor is adjusted correctly.
- Do not operate the Power Cut with a defective or modied
mufer.
- Clean the Power Cut regularly.
- Check the fuel tank cap regularly for good sealing.
Observe the accident prevention instructions issued by
trade associations and insurance companies. NEVER
make any modications to the Power Cut! You will only
be putting your own safety at risk!
Perform only the maintenance and repair works described in
the operator’s manual. All other work must be carried out by
MAKITA Service.
Use only original MAKITA spares and accessories.
The use of non-MAKITA spares, accessories, or cutting discs
increases the risk of accident. We cannot accept any responsi-
bility for accidents or damage occurring in association with the
use of cutting discs or accessories other than original MAKITA.
First aid
For the event of a possible accident, please make sure that a
rst aid kit is always immediately available close by. Immediately
replace any items used from the rst aid box.
When calling for help, give the following information:
- Place of the accident
- What happened
- Number of injured people
- Kind of injuries
- Your name!
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 n-
gers, 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!
Disposal and environmental protection
Be mindful of the environment!
Dispose of worn-out or defective cutting discs in accordance with
your local disposal regulations. To protect unusable cutting discs
from misuse, destroy them before disposal.
When the Power Cut is worn out or damaged beyond repair, have
it disposed of or recycled in an environmentally sound manner. If
necessary, consult your local authorities.
27
28
29
SERVICE
11
Technical data
Displacement cu in (cm
3
)
4.5 (73) 4.5 (73)
Bore in (mm) 1.97 (50) 1.97 (50)
Stroke in (mm) 1.46 (37) 1.46 (37)
Max. power
hp (kW) /1/min
5.1 (3.8) / 9.150 5.1 (3.8) / 9.150
Max. torque Nm 4.3 4.3
Idling speed 1/min 2,500 2,500
Clutch engagement speed 1/min 3,800 3,800
Engine speed limitation 1/min 9,400 ± 145 9,400 ± 145
Max. spindle speed 1/min 4,300 4,300
Sound pressure level at the operators ear dB(A) 100 100
Sound pressure level at the bystander’s position (50 ft) dB(A) 79 79
Vibration acceleration a
h,w
per ANSI.175.4
- Tubular handle (rated speed) m/s
2
9.3 9.3
- Rear handle (rated speed) m/s
2
5.2 5.2
Carburetor (diaphragm carburetor) Type WALBRO WJ-131
Ignition system (with speed limitation) Type electronic
Spark plug Type
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Electrode gap in (mm) .020 (0.5) .020 (0.5)
Fuel consumption at max. load per ISO 8893 kg/h 1.7 1.7
Specic consumption at max. load per ISO 8893 g/kWh 450 450
Fuel tank capacity oz (l) 37 (1.1) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA Synthetic oil 50:1 50:1
- when using other synthetic oil (quality grade JASO FC or ISO EGD) 50:1 50:1
Cutting disc for 80 m/sec.
2)
in 12" / 0.8" / 0.2"
3)
14" / 0.8" / 0.2"
3)
Cutting disc for 80 m/sec.
2) 4)
in
14" / 1" / 0.2"
3)
Arbor diameter in 0.8" 0.8" / 1.0"
5)
Overall weight (tanks empty, without cutting disc) lb 21.56 22.00
EK7300 EK7301
2)
Circumference speed at max. engine speed
3)
Outside diameter / arbor hole / maximum permissible thickness of the composite wheels.
4)
Country-specic
5)
HD
Displacement cu in (cm
3
)
4.9 (81)
Bore in (mm) 2.05 (52)
Stroke in (mm) 1.49 (38)
Max. power / operating speed
hp (kW) /1/min
5.6 (4.2) / 9.150
Max. torque Nm 5.0
Idling speed 1/min 2.500
Clutch engagement speed 1/min 3.800
Engine speed limitation 1/min 9.350 ± 145
Max. spindle speed 1/min 3.820
Sound pressure level at the operators ear dB(A) 100
Sound pressure level at the bystander’s position (50 ft) dB(A) 79
Vibration acceleration a
h,w
per ANSI.175.4
- Tubular handle (rated speed) m/s
2
9.3
- Rear handle (rated speed) m/s
2
5.2
Carburetor (diaphragm carburetor) Type WALBRO WJ-131
Ignition system (with speed limitation) Type electronic
Spark plug Type
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Electrode gap in (mm) .020 (0,5)
Fuel consumption at max. load per ISO 8893 kg/h 1.85
Specic consumption at max. load per ISO 8893 g/kWh 450
Fuel tank capacity oz (l) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA Synthetic oil 50:1
- when using other oils (quality grade: JASO FC or ISO EGD) 50:1
Cutting disc for 80 m/sec.
2)
in 16" / 0.8" / 0.2"
3)
Cutting disc for 80 m/sec.
2) 4)
in 16" / 1.0" / 0.2"
3)
Arbor diameter in 0.8" / 1.0"
5)
Overall weight (tanks empty, without cutting disc) lb 23.37
EK8100
12
Denomination of components (Illustration shows model EK7301)
1 Handle
2 Filter cover for air lter and spark plug cap
3 Cover lock
4 Tubular handle
5 Mufer
6 Protection hood
7 Grip
8 V-belt tension adjusting screw
9 Retaining nuts
10 Stand
11 Carburetor adjustment opening
12 Identication plate
13 Fuel tank with handle
14 Decompression valve
15 Starter grip
16 Air intake
17 Combination switch „Choke, Start/Stop (I/O)”
18 Safety locking button
19 Throttle lever
20 Tank cap (fuel)
21 Starter housing with starter
22 Cutting disc
23 Disc bolt
24 Spring washer
25 Hold opening
1
2
3 4 5 6 7
8
25
9
1012 111314
24
23
17
22
18
19
20
21
15
16
13
Place the spring washer (8) on the arbour and insert the screw
(9) and tighten by hand.
Turn the disc slowly until the stop hole of the V-belt pulley is
visible in the cutting arm cover (10).
Insert the Allen key (2) as far as it will go. The shaft is now blocked.
Tighten the screw with the combination wrench (1)
NOTE: Tighten the screw rmly (30 ± 2 Nm), as otherwise
the cutting wheel may slip during cutting.
PUTTING INTO OPERATION
CAUTION:
Always turn off the engine and pull off the spark plug cap
before doing any work on the Power Cut! Always wear
protective gloves!
CAUTION:
Start the Power Cut only after complete assembly and
inspection.
Mounting the cutting disc
Check the integrity of the composite wheel both
before and after tting it to the machine.
See SAFETY INSTRUCTIONS, Page 6.
Unscrew screw (9) and remove the spring washer (8).
Place the reduction sleeve (*) and the cutting disc (5) on the
arbour (7).
Note: A reduction sleeve is included in the scope of delivery. It is
used to t the composite wheel to the machine.
Use only original MAKITA reduction sleeves!
CAUTION: The arbor hole of the cutting disc must be an exact
t with the arbor or shaft. If the arbor hole is larger, it must be
tted with a reduction sleeve (*). Non-compliance can cause
serious injury!
Make sure the cutting disc is installed so it turns in the right
direction, if a direction is marked on the disc.
Sequence
For the the following work, use the assembly tools included
with delivery:
1. 13/19 AF combination wrench
2. Allen key
3. Carburetor adjustment screwdriver
4. Reduction sleeve (not in the general delivery inventory)
Place the Power Cut on a stable surface and carry out the
following assembly steps:
14
NOTE: The two fastening nuts (11) must be loosened before
tightening the V-belt or checking the tension.
To increase the belt tension, turn the tightening screw (12) to
the right (clockwise) with the combination wrench included with
the Power Cut.
The belt tension is correctly adjusted when the nut (13) is cen-
tred on the mark (14).
IMPORTANT:
After tightening/inspection, make certain to tighten
the fastening nuts (11) (30 ± 2 Nm).
Tightening the V-belt /
Checking V-belt tension
IMPORTANT
:
Exact V-belt tension is essential for maximum cutting per-
formance with minimum fuel consumption. Improper V-belt
tension will result in premature wear to the V-belt and V-belt
wheel or damage to the clutch bearing.
If the Power Cut is new or the V-belt has been replaced,
retighten the V-belt after the rst hour of operation!
15
16
18 *
17
19
21
21
17
20
Installing the pressure water system
Not in the general scope of delivery. Country-specic!
CAUTION: Before doing any work on the Power
Cut, always switch off the engine and disconnect
the spark plug cap!
NOTE: When using a protective hood for a maximum disk diam-
eter of 300 mm (12"), always shorten hose (15) to 180 mm (7").
To do this unscrew sleeve (16) and carefully pull tube (15) off
coupling (17) and cut to 180 mm. Then push the tube end back
over the coupling and tighten the sleeve all the way.
- Install the water connection as shown in gure. Push clamp
(22) around the front grip (23) and fasten with the bolt and
square nut.
- Pull the quick-release coupling (24) from the water connection
and connect it to the 1/2" supply line (18).
- Remove the cutting disk (see operator’s manual).
- Tube routing with the cutting assembly in the middle position,
see gure.
- Tube routing with the cutting assembly in the outside position,
see gure.
- Insert the nozzles (19) through the protective hood (20) from
the inside and put on couplings (17). Screw on and tighten
the coupling caps (21).
IMPORTANT:
To avoid bending the tubes, be sure to position the couplings (17)
in accordance with gures as appropriate.
- Install the cutting disc (see operator’s manual).
- Connect the quick-release coupling (24) to the supply tube.
NOTE:
The water ow rate can be precisely adjusted with valve (25).
15
24
25
22
23
Fuels
Caution:
This tool uses petroleum products (gasoline and oil).
Be especially careful when handling gasoline.
Do not smoke. Do not allow gasoline to come near ames,
sparks or re (explosion hazard).
Fuel mixture
This tool is powered by a high-performance air-cooled two-stroke
engine. It runs on a mixture of gasoline and two-stroke engine oil.
The engine is designed for unleaded regular gasoline with a
min. octane value of 89 (R+M)/2. In case no such fuel is avail-
able, you can use fuel with a higher octane value. This will not
affect the engine.
In order to obtain an optimum engine output and to protect
your health and the environment use unleaded fuel only.
To lubricate the engine, use a synthetic oil for two-stroke air-coo-
led engines (quality grade JASO FC or ISO-L-EGD), which has
to be added to the fuel.
Gasoline
50:1
+
The correct mixture ratio:
50:1 When using MAKITA synthetic two-stroke engine
oil, i. e. 50 parts gasoline to 1 part oil.
50:1 When using other synthetic two-stroke engine
oil (quality grade JASO FC or ISO -L -EGD), i. e. 50
parts gasoline to 1 part oil.
1.0 Us-gal.
(3.7 l) 2.6 oz. (75 cm
3
)
2.5 Us-gal.
(9.4 l) 6.4 oz. (189 cm
3
)
5.0 Us-gal.
(18.9 l) 12.8 oz. (378 cm
3
)
16
Refuelling
IMPORTANT:
FOLLOW THE SAFETY PRECAUTIONS!
Be careful and cautious when handling fuels.
The engine must be turned off and cooled down!
Carefully clean the area around the fuel-tank ller neck to keep
dirt from getting in the tank.
Place the unit on its side on an even surface.
Unscrew the tank cap and ll tank with fuel mixture. Take care
to avoid spilling.
Screw the tank cap back on hand-tight.
Clean screw cap and tank after refuelling. Never start or
operate the Power Cut in the same place as it was fuelled!
If fuel gets on your clothing, change clothes immediately.
Fuel mixture
AVOID SKIN AND EYE CONTACT
Mineral oil products degrease your skin. If your skin comes
in contact with these substances repeatedly and for an ex-
tended period of time, it will dry out. Various skin deseases
may result. In addition, allergic reactions are known to occur.
Eyes can be irritated by contact with oil. If oil comes into your
eyes, immediately wash them with clear water.
If your eyes are still irritated, see a doctor immediately!
MAKITA synthetic two-stroke engine oil (50:1) is available in
the following sizes to suit your individual requirements:
2.6 oz. order number T-00745
6.4 oz. order number T-00739
NOTE: For preparing the fuel-oil mixture rst mix the entire oil
quantity with half of the fuel required, then add the remaining
fuel. Shake the nished mixture thoroughly before pouring it
into the tank.
Caution: Open the tank cap carefully, as pressure might
have built up inside!
It is not wise to add more engine oil than specied to
ensure safe operation. This will only result in a higher
production of combustion residues which will pollute the
environment and clog the exhaust channel in the cylinder
as well as the mufer. In addition, fuel consumption will
rise and performance will decrease.
The Storage of Fuel
Fuels have a limited storage life. Fuel and fuel mixtures age
through evaporation, especially at high temperatures. Aged
fuel and fuel mixtures can cause starting problems and dam-
age the engine.Purchase only that amount of fuel, which will
be consumed over the next few months. At high temperatures,
once fuel has been mixed it should be used up in 6-8 weeks.
Use only approved and marked containers for transport
and storage. Store fuel only in dry, cool and secure
locations!
17
Starting the engine
This model is tted with a semiautomatic decompression valve
(1) to make starting easier. Press the rubber cover until you
can feel it engage. This pushes in the deompression valve
behind it. This in turn reduces the compression, so that it takes
less force to pull the starter cord to accelerate the engine to its
starting speed.
The high pressure in the combustion chamber after the rst
ignition automatically closes the decompression valve.
if
necessary
CAUTION:
Observe the SAFETY INSTRUCTIONS on page 3 and 4!
Start the Power Cut only after complete assembly and
inspection!
Move at least 3m (10 feet) away from the place where you
fuelled the Power Cut.
Make sure you have a good footing, and place the Power
Cut on the ground in such a way that the cutting disc is
not touching anything.
3 meters
Move the protective hood (3) into the proper position for the
work you intend to do (see illustration).
Grasp the grip (2). The hood (3) can swing in both ways within
its range of motion.
Caution:
Always make sure that the straight outer edge of the impact
plate (4) and the edge of the hood are parallel (see arrows).
If this is not the case, take the tool to a service center.
18
Stopping the engine
Push the combination switch (6) down to position .
6
Warm starting:
As described above for cold starting, but before starting push
the combination switch (6) up (Choke position) and then right
away back to the middle “I” position.
This is only to engage the half-throttle lock. If the engine doesn’t
start after 2 or 3 pulls, repeat the entire starting procedure as
described for cold starting.
Do not leave switch in the choke position when hot
starting!
Cold starting:
Grasp front handle rmly with one hand and press the Power
Cut against the ground.
Place left toe in the rear handguard.
Push the combination switch (6) up (choke position). This will
automatically activate the half-throttle lock.
NOTE: If the Power Cut is mounted on the trolley, do not
operate the gas lever (throttle) on the side of the trolley!
Pull the starter cable out slowly until you feel resistance (piston
is now just before top dead center).
Press in the decompression valve (5).
Pull starter cable quickly and rmly, until you hear the rst
ignition, but to a max. of 3-5 pulls!
Important: Do not pull the starter cable out more than about
50 cm / 20”, and guide it back slowly by hand (instead of letting
it snap back).
Press in the decompression valve (5).
Move the combination switch (6) to the middle “I” position.
Again pull the starter cable quickly and rmly.
As soon as the engine is running, grasp the rear handle (the
safety lock switch (8) will be depressed by the palm of your hand)
and tap the throttle (9). The half-throttle lock will be disengaged
and the engine will run in idle.
Cold start (Choke)
Warm start
Engine off
5
8
9
6
19
Adjusting
the carburetor
NOTE: The grinding parts are equipped with an electronic
ignition to limit the speed.
At the factory the idling speed has been set to approx.
2500 rpm, but the running-in process of a new engine may
require slight readjustment of the idling speed.
Adjustments to the adjusting screws (L) and (H) may
only be made by an authorised MAKITA service center.
Accordingly, the holes for the two screws are sealed shut.
For correct adjustment of the idling speed the following
steps must be carried out:
Start the engine and run it until it is warm (about 3 - 5 minutes).
Adjust the carburetor with the screwdriver (1) included with the
Power Cut. It has a lug that helps with adjustment.
Readjust the idling speed.
If the cut-off disc is still turning when the engine is running,
unscrew the adjusting screw of the throttle valve (2) until the
cut-off disc is no longer turning. When the engine is left running
at idling speed, tighten the screw a little.
Switch off the engine
20
MAINTENANCE
CAUTION:
Before doing any work on the Power Cut turn off the engine,
remove the cutting disc, pull the plug cap off the spark plug
and wear protective gloves!
CAUTION:
Start the Power Cut only after complete assembly and
inspection.
IMPORTANT:
Because many of the parts and assemblies not mentioned
in this Operator’s manual are vital to the safety of the unit,
and because all parts are subject to a certain amount of
wear and tear, it is important for your own safety that
you have the unit checked and maintained regularly by a
MAKITA service center.
IMPORTANT:
If the cutting wheel breaks during cutting, the
Power Cut must be repaired by a MAKITA service
center before being used again!
SERVICE
Unscrew the screws (8) and remove the crankcase housing
cover (9).
Remove the old belt (10) or belt pieces.
NOTE: The illustration shows the V-belt for models EK7300,
7301.
Clean out the inside of the drive arm with a brush.
Put in a new V-belt.
NOTE:
Reassemble the crankcase housing cover (9), side piece (6)
and cover (4) in the reverse order.
To tighten the V-belt see ”Tightening the V-belt / Checking
V-belt tension”.
Changing the V-belt
Loosen nuts (3).
Loosen the tightening screw (1) (counter-clockwise) until the
end of the screw (2) is visible in the gap.
Loosen and unscrew the screw (detail X, only for EK8100).
Unscrew the nuts (3) and remove the cover (4).
Remove the screws (5) and (7) and remove the side piece (6).
NOTE:
Screw (5) is longer than screws (7). Make sure to put
them back in the right places during reassembly!
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Makita EK7301 Manuel utilisateur
- Catégorie
- Outils de jardin
- Taper
- Manuel utilisateur
dans d''autres langues
- English: Makita EK7301 User manual
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