Northern Industrial Tools DPC6410, DPC7311, DPC8112, DPC6411, DPC7310 User Manual
...
WARNING!
Read and understand this Manual. Always follow safety precautions in the Instruction and
Safety Manual. Improper use can cause serious injury!
The engine exhaust from this product contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm. Preserve this Manual carefully!
ATTENTION!
Suivez toujours les conseils de sécurité du présent manuel d’instructions et de sécurité.
Une utilisation incorrecte de la découpeuse peut entraîner des blessures graves!
Conservez avec soin ce manuel! Les gaz d’échappement émis par ce produit contiennent des produits
chimiques connus par l’Etat de Californie pour provoquer le cancer, des défauts de naissance ou autres
dommages de reproduction. Lisez et comprenez ce manuel.
DPC6410, DPC6411
DPC7310, DPC7311
DPC8111, DPC8112
Instruction and Safety Manual
for Gasoline Power Cuts (page 2 - 33)
Manuel d’instructions et de sécurité
de découpeuse thermiques (page 34 - 65)
2
EMISSIONS COMPONENT DEFECT WARRANTY COVERAGE
MAKITA U.S.A, Inc warrant to the initial retail purchaser and each subsequent owner, that this utility equipment was designed, built,
and equipped to conform at the time of initial sale to all applicable regulations of the U.S.
Environmental Protection Agency (EPA), and that the engine is free of defects in materials and workmanship which would cause this
engine to fail to conform with EPA regulations during its warranty period.
For the components listed under PARTS COVERED, the service dealer authorized by MAKITA will, at no cost to you, make the necessary diagnosis, repair, or replacement necessary to ensure that the engine complies with applicable U.S. EPA regulations.
EMISSION COMPONENT DEFECT WARRANTY PERIOD
The warranty period for this engine begins on the date of sale to the initial purchaser and continues for a period of 2 years.
PARTS COVERED
Listed below are the parts covered by the Emission Components Defect Warranty. Some of the parts listed below may require sche-
duled maintenance and are warranted up to the rst scheduled replacement point for that part.
Fuel Metering System
Ignition System
Carburetor and internal parts Spark plugs
Fuel lter, if applicable Flywheel Magneto
Throttle stopper, if applicable Ignition Coil
Choke System, if applicable
Air Induction System Miscellaneous Items Used in Above Systems
Air cleaner plate, Air lter
Fuel hoses, clamps and sealing gaskets
Air cleaner case, Intake manifold
OBTAINING WARRANTY SERVICE
To obtain warranty service, take your engine to the nearest MAKITA Factory Service Center or service Center authorized by MAKITA.
Bring your sales receipts indicating date of purchase for this engine. The dealer of service authorized by MAKITA will perform the
necessary repairs or adjustments within a reasonable amount of time and furnish you with a copy of the repair order. All parts and
accessories replaced under this warranty become the property of MAKITA.
WHAT IS NOT COVERED
• Conditions resulting from tampering, misuse, improper adjustment (unless they were made by the service dealer authorized by
MAKITA during a warranty repair), alteration, accident, failure to use the recommended fuel and oil, or not performing required
maintenance services.
• The replacement parts used for required maintenance services.
• Consequential damages such as loss of time, inconvenience, loss of use of the engine or equipment, etc.
• Diagnosis and inspection charges that do not result in warranty-eligible service being performed.
• Any non-authorized replacement part, or malfunction of authorized parts due to use of non-authorized parts.
OWNER’S WARRANTY RESPONSIBILITIES
As the engine owner, you are responsible for the performance of the required maintenance listed in your owner’s manual.
MAKITA recommends that you retain all receipts covering maintenance on your engine, but MAKITA cannot deny warranty solely
for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance. As the engine owner, you should
however be aware that MAKITA may deny warranty coverage if your engine or a part has failed due to abuse, neglect, improper
maintenance or unapproved modications.
You are responsible for presenting your engine to the nearest service dealer authorized by MAKITA when a problem exists.
If you have any questions regarding your warranty rights and responsibilities, you should contact the MAKITA Warranty service
Department at 1-800-4 MAKITA (462-5482) for the information.
THINGS YOU SHOULD KNOW ABOUT THE EMISSION CONTROL SYSTEM WARRANTY:
MAINTENANCE AND REPAIRS
You are responsible for the proper maintenance of the engine. You should keep all receipts and maintenance records covering the
performance of regular maintenance in the event questions arise. These receipts and maintenance records should be transferred
to each subsequent owner of the engine. MAKITA reserves the right to deny warranty coverage if the engine has not been properly
maintained. Warranty claims will not be denied, however, solely because of the lack of required maintenance or failure to keep
maintenance records.
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES AND SYSTEMS MAY BE PERFORMED BY
ANY REPAIR ESTABLISHMENT OR INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A SERVICE
DEALER AUTHORIZED BY MAKITA. THE USE OF PARTS THAT ARE NOT EQUIVALENT IN PERFORMANCE AND DURABILITY
TO AUTHORIZED PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY CLAIM.
If other than the parts authorized by MAKITA are used for maintenance replacements or for the repair of components affecting emission control, you should assure yourself that such parts are warranted by their manufacturer to be equivalent to the parts authorized
by MAKITA in their performance and durability.
HOW TO MAKE A CLAIM
All repair qualifying under this limited warranty must be performed by a service dealer authorized by MAKITA. In the event that any
emission-related part is found to be defective during the warranty period, you shall notify MAKITA Warranty service Department at
1-800-4 MAKITA (462-5482) and you will be advised of the appropriate warranty service dealer or service providers
where the warranty repair can be performed.
3
Packing
Your MAKITA Power Cut is packed in a cardboard box to prevent shipping damage.
Cardboard is a basic raw material and is consequently reuseable
or suitable for recycling (waste paper recycling).
Table of contents Page
Packing ................................................................................ 3
Delivery inventory ..............................................................4
Symbols ...............................................................................4
SAFETY PRECAUTIONS
Intended use ................................................................... 5
General precautions .......................................................
5
Protective equipment ...................................................
5-6
Fuels / Refuelling ............................................................
6
Putting into operation ......................................................
6
Cutting discs ...................................................................
7
Kickback and lock-in .......................................................
8
Working behavior / Method of working
............................8
Always observe the following when using
synthetic resin cutting discs .............................................
9
Cutting metal ...................................................................
9
Cutting masonry and concrete ...................................
9-10
Transport and storage ...................................................
10
Maintenance .................................................................
11
First aid .........................................................................
11
Disposal and environmental protection ......................... 11
Technical data ...................................................................12
Denomination of components ......................................... 13
PUTTING INTO OPERATION
Mounting the cutting disc ...............................................
14
Tightening the V-belt / Checking V-belt tension ............
15
Installing the pressure water system .......................
15-16
Fuels / Refuelling .....................................................
16-17
Starting the engine ........................................................
18
Cold-starting .................................................................
18
Warm-starting ...............................................................
19
Stop engine ................................................................... 19
Adjusting the carburetor ..................................................20
MAINTENANCE
Changing the V-belt ......................................................
21
Cleaning the protection hood ........................................
22
Cleaning / changing the air lter ..............................
22-23
Replacing the spark plug ..............................................
24
Replacing the suction head ..........................................
24
Replacing the starter cable ...........................................
25
Replacing the return spring ...........................................
26
Instructions for periodic maintenance ...........................
30
Cutting attachment in central / side position .................27
Repositioning the cutting attachment .......................
27-28
Replacing/cleaning the spark arrester screen ..............
28
SPECIAL ACCESSORIES
Diamond cutting discs, trolley, water tank
and pressure water system ............................................
29
Service, spare parts and guarantee ...........................30-31
Troubleshooting ............................................................... 31
Extract from spare parts list .......................................32-33
Accessories ..................................................................33
Service stations (see enclosure)
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.
• 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 centrally, 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.
The following industrial property rights apply:
US 08510690, SE 95027298, SE 95027306, IT 95000653,
IT 95000654, GBM 9412558, GBM 9412559.
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 Instruction and Safety Manual carefully before
putting the Power Cut into operation for the rst time,
and strictly observe the safety regulations! Failure to
observe these precautions can lead to severe injury or
death!
WARNING!
Some dust created by power sanding sawing, grinding, drilling, and other construction activities contains
chemicals known (to the State of California) to cause
cancer, birth defects or other reproductive harm.
Some examples of these chemicals are:
• lead from lead-based paints,
• crystalline silica from bricks and cement and
other masonry products, and
• arsenic and chromium from chemically treated lumber.
Your risk from these exposures varies, depending on
how often you do this type of work.
To reduce your exposure to these chemicals: work in
a well ventilated area, and work with approved safety
equipment, such as those dust masks that are specially
designed to lter out microscopic particles.
Only for DPC7310, 7311: 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.
4
6 5 4 3 2 1
Delivery inventory
1. Power Cut
2. Cutting disc
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. Instruction manual
(not shown)
Symbols
You will notice the following symbols on the Power Cut and in the Instruction Manual:
In case one of the parts listed should not be included in the
delivery inventory, please consult your sales agent.
Read instruction 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
Never use carbide tipped, circular saw
blades or any kind of wood cutting
blades!
Combination Start/Stop (I/O) switch,
choke
Locked / Unlocked
Press decompression valve
Engine - manual start
Working in winter
Stop engine!
Warning!
Kickback!
Fuel and oil mixture
First aid
Recycling
5
2
3
1
4
SAFETY PRECAUTIONS
Intended use
Power Cut
Use the Power Cut cutoff saw outdoors only, for trimming and cutting
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 Instruction Manual, children, young
people, and persons under the inuence of alcohol, drugs or medi-
cations must not use the Power Cut.
General precautions
- The operator MUST read this instruction manual to ensure
safe operation (even if you already have experience in using cutoff saws). It is important to be familiar with the opera-
tion of this particular cutoff saw. Users insufciently informed
will endanger 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 instruction 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, medica
tion 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:
- 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 trousers 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.
6
- 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. 3 1/4 yards) 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 (33 yards), 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 prescriptions. 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 halfthrottle lock button functions properly, the grips are clean and
dry, and the combination switch functions properly (Start/Stop
(I/O) switch, choke).
- Start the Power Cut only after complete assembly and inspec
tion. Never use the Power Cut when it is not completely assembled.
7
6
5
9
8
30 m
3 meters
= wearing Protective Equipment
7
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 /
5 1/2 yards), 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 foot
-
ing.
- Put the Power Cut into operation only as described in this instruction 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).
- 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.
10
11
13
12
min. 5 m
14
● Maintenance
● Refuelling
● Changing cutoff discs
● Repositioning the
cutting attachment
● Stopping work
● Transport
● Putting out of function
8
Kickback and lock-in
- 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.
Working behavior / Method of working
- 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 “Technical 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 designed!
- Use cutting discs only for the materials for which they are designed. 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
9
When using synthetic resin cutting discs, always observe 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 (expiration date)! The date (quarter and year) is stamped on the disc’s
arbor ring.
EXAMPLE: 04 / 2007
This cutting disc can be used through the end of the fourth quarter
of 2007, 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 supervision 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 circumferential 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 ac
-
cident 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 responsible 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.
10
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 possible (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 cutouts,
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.
- 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
11
Maintenance
- Before performing maintenance work switch off the Power
Cut (27) and pull out the plug cap.
- 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.
- 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 instruction 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 responsibility 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 ngers, 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
12
Technical data
Displacement cu in (cm3)
3.9 (64) 4.5 (73)
Bore in (mm) 1.85 (47) 1.97 (50)
Stroke in (mm) 1.46 (37) 1.46 (37)
Max. power hp (kW) 4.4 (3.2) 5.6 (4.2)
Max. torque Nm 4.0 5.0
Idling speed 1/min 2,500 2,500
Clutch engagement speed 1/min 3,800 3,800
Engine speed limitation 1/min 9,350 ± 145 9,350 ± 145
Max. spindle speed 1/min 4,300 4,300
Sound pressure level at the operators ear dB (A) 97 104
Sound pressure level at the bystander’s position (50 ft) dB (A) 84 86
Vibration acceleration a
h,w
per EN 1454
- Tubular handle (idle/rated spindle speed) m/s
2
6 / 5 7 / 6
- Rear handle (idle/rated spindle speed) m/s2 8 / 6 8 / 7
Carburetor (diaphragm carburetor) Type TILLOTSON HS-273 A
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 1.65 2.1
Specic consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity oz (l) 37 (1.1) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA HP 100 high-performance oil 100:1 100:1
- when using MAKITA oil 50:1 50:1
Cutting disc for 80 m/sec.
2)
in
12" / 0.8" / 0.2"
3)
14" / 0.8" / 0.2"
3)
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)
14" / 1" / 0.2"
3)
Arbor diameter in 0.8" 0.8" / 1.0" 0.8" 0.8" / 1.0"
V-belt no. 965 300 470 965 300 470
Overall weight (tanks empty, without cutting disc) lb 21.38 21.82 21.6 22.04
Displacement cu in (cm
3)
4.9 (81) 4.9 (81)
Bore in (mm) 2.05 (52) 2.05 (52)
Stroke in (mm) 1.49 (38) 1.49 (38)
Max. power hp (kW) 6.2 (4.5) 6.2 (4.5)
Max. torque Nm 5.2 5.2
Idling speed 1/min 2,500 2,500
Clutch engagement speed 1/min 3,800 3,800
Engine speed limitation 1/min 9,350 ± 145 9,350 ± 145
Max. spindle speed 1/min 4,300 3,750
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 EN 1454
- Tubular handle (idle/rated spindle speed) m/s
2
5.6 / 6.3 5.6 / 6.3
- Rear handle (idle/rated spindle speed) m/s2 8.8 / 6.0 8.8 / 6.0
Carburetor (diaphragm carburetor) Type WALBRO WJ-105
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 2.3 2.3
Specic consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity oz (l) 37 (1.1) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA HP 100 high-performance oil 100:1 100:1
- when using MAKITA oil 50:1 50:1
Cutting disc for 80 m/sec.
2)
in
14" / 0.8" / 0.2" 3) 16" / 0.8" / 0.2" 3)
Cutting disc for 80 m/sec.
2) 4)
in
14" / 1.0" / 0.2" 3) 16" / 1.0" / 0.2" 3)
Arbor diameter in 0.8" (1.0") 4) 0.8" (1.0")
4)
V-belt no. 965 300 490 965 300 480
Overall weight (tanks empty, without cutting disc) lb 22.05 23.37
2)
Circumference speed at max. engine speed
3)
Outside diameter / arbor hole / thickness
4)
Country-specic
DPC6410 DPC6411 DPC7310 DPC7311
DPC8111 DPC8112
13
Denomination of components (Illustration shows model DPC7311)
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 Start/Stop (I/O) switch, choke
18 Stop knob for halfway throttle
19 Safety locking button
20 Throttle lever
21 Tank cap (fuel)
22 Starter housing with starter
23 Cutting disc
24 Disc bolt
25 Spring washer
26 Hold opening
1
24
25
23
2
3 4 5 6 7
8
26
14 15 16
17
18
19
20
9
10
2122
12 1113
Serial number
Year of manufacture
Identication plate (12)
Indicate when ordering spare parts
DPC7311
0410 123456
22045 Hamburg, Germany
394.100.674 Typ 394
EMI OFB
973108
14
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.
Mounting the cutting disc
Inspect the disc for damage.
See SAFETY INSTRUCTIONS, Page 7.
Unscrew screw (9) and remove the spring washer (8).
Place the cutting disc (5) on the arbour (7).
Hinweis: 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 (*).
Make sure the cutting disc is installed so it turns in the right
direction, if a direction is marked on the disc.
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.
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. Adapter ring (not in the general delivery inventory)
Place the Power Cut on a stable surface and carry out the fol-
lowing assembly steps:
Only for models DPC8111 and 8112
No air lter is installed!
Before operation, insert an oiled foam
lter (pre-lter), as shown in the adjacent illustration! To do this, take off the
lter cover (see the chapter on Cleaning /
changing the air lter).
15
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 centred 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 instruction 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 instruction manual).
- Connect the quick-release coupling (
24) to the supply tube.
NOTE:
The water ow rate can be precisely adjusted with valve (25).
16
Fuels
Caution:
The Power Cut uses mineral-oil 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
The Power Cut is powered by a high-performance 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 91 ROZ. In case no such fuel is available,
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. Gasoline which contens alcohol should not used in
MAKITA products.
To lubricate the engine, use a two-stroke engine oil (quality grade
JASO FC or ISO EGD), which is added to the fuel. The engine
is designed for the use of MAKITA HP 100 high-performance
two-stroke engine oil at a mixture ratio of only 100:1 to protect
the environment. In addition, this ensures a long service life and
reliable operation with minimum exhaust emissions.
Gasoline
50:1
100:1
+
The correct mixture ratio:
100:1 When using MAKITA HP 100 high-performance
two-stroke engine oil, i. e. 100 parts gasoline
to 1 part oil.
50:1 When using MAKITA high-performance two-
stroke engine oil, i. e. 50 parts gasoline to 1
part oil.
24
25
22
23
1.0 Us-gal. (3.7 l) 1.25 oz. (37 cm3) 2.5 oz. (75 cm3)
2.5 Us-gal. (9.4 l) 3.2 oz. (94 cm3) 6.4 oz. (189 cm3)
5.0 Us-gal. (18.9 l) 6.4 oz. (189 cm3) 12.8 oz. (378 cm3)
17
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
The Storage of Fuel
Fuels have a limited storage life. Fuel and fuel mixtures age.
Therefore fuel and fuel mixtures, which have been stored
for too long, can cause starting problems. Purchase only
that amount of fuel, which will be consumed over the next
few months.
Store fuel safely in a dry place in approved containers
only.
AVOID SKIN AND EYE CONTACT
Mineral oil products degrease your skin. If your skin comes in
contact with these substances repeatedly and for an extended
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 HP 100 high-performance two-stroke engine oil is
available in the following sizes to suit your individual requirements:
0.5 l order number 980 008 609
MAKITA high-performance two-stroke engine oil (50:1) is
available in the following sizes to suit your individual requirements:
100 ml order number 980 008 606
1 l order number 980 008 607
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 Power Cut 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.
18
Starting the engine
This model is tted with a semiautomatic decompression valve
(1) to make starting easier. Depressing it reduces the force
needed for compression, so little force is needed to accelerate
the engine to its starting speed.
The high pressure in the combustion chamber after the rst
ignition automatically closes the decompression valve (button
pops out).
if
necessary
CAUTION:
Observe the SAFETY INSTRUCTIONS on page 5 and 6!
Start the Power Cut only after complete assembly and
inspection!
Move at least 3m 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 centre.
Cold-starting
Move the combination switch (6) up (choke position).
Grasp handle (hand pressure actuates the grip throttle lever
lock (8)).
Push the throttle (9) in all the way and hold it.
Press the throttle lock (7) and release the throttle (9) (the throttle
lock will hold the throttle at half-throttle position).
NOTE: If the Power Cut is in a trolley, bring the control lever to
the third or fourth detent.
Depress decompression valve (5).
19
Stopping the engine
Push the combination switch (10) down to position .
Grasp the tubular handle rmly with one hand and press the
Power Cut against the ground.
Place the tip of your left foot in the rear handle.
Pull the starter cable strong and rapidly until you hear the
rst audible ignition.
CAUTION: Do not pull out the starter cable more than approx.
50 cm, and lead it back by hand.
Depress decompression valve (5) again.
Put the combination switch (6) in position “I”.
Keep pulling the starter cable until the engine catches.
As soon as the engine is running, press the throttle (9) to release
the half-throttle lock (
7), allowing the engine to idle.
Warm-starting
As described under ”Cold starting”, except without putting the
combination switch (6) in choke position.
20
Adjusting
the carburetor
NOTE: The grinding parts are equipped with an electronic
ignition to limit the speed. The carburetor also has a xed
jet which cannot be adjusted.
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.
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, Order No. 944
340 001) 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, loosen the screw a little.
Switch off the engine
21
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 Instruction 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
centre 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 DPC6410
- 7311).
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 DPC8112).
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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