Instruction Manual
Original Instruction Manual
DPC6430
DPC6431
DPC7330
DPC7331
DPC8131
DPC8132
Read this instruction manual carefully before putting the Power Cut into operation and strictly observe the
Important:
safety regulations!
Keep this instruction manual!
Thank you for purchasing a MAKITA product!
Congratulations on choosing a MAKITA Power Cut cutoff saw!
We are confi dent that you will be satisfi ed 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-fi 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 fl 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 satisfi ed 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 manual carefully before putting the
Power Cut into operation for the fi rst time, and strictly
observe the safety regulations! Failure to observe these
precautions can lead to severe injury or death!
EU Conformity Declaration
The undersigned, Tamiro Kishima and Rainer Bergfeld, as
authorized by DOLMAR GmbH, declare that the MAKITA
machines,
Type: (325) DPC6430, DPC6431; (394) DPC7330, DPC7331;
(326) DPC8131, DPC8132
manufactured by DOLMAR GmbH, Jenfelder Str. 38, 22045
Hamburg, Germany, conforms to the basic safety and health
requirements of the applicable EU guidelines:
EU Machinery Directive 98/37/EG, EU EMC Directive 2004/108/
EG, Outdoor Noise Directive 2000/14/EG. Starting on 29 Dec.
2009, Guideline 2006/42/EG will come into force, replacing
Guideline 98/37/EG. This product meets the requirements of
the new Guideline.
The most important standards applied to properly meet the requirements of the above EU Directive were: EN 19432, CISPR
12, EN ISO 14982, DIN EN 61000-4. The conformity assessment procedure 2000/14/EG was performed per Annex V. The
measured noise level (L
level (Ld) is 115 dB(A).
The technical documentation is on fi le at DOLMAR GmbH,
Jenfelder Straße 38, Abteilung FZ, D-22045 Hamburg.
Hamburg, 25.2.2008 for DOLMAR GmbH
) is 114 dB(A). The guaranteed noise
wa
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
Fuels / Refuelling .....................................................14-15
Starting the engine ........................................................ 16
Cold-starting .................................................................16
Warm-starting ............................................................... 17
Stop engine ................................................................... 17
Adjusting the carburetor .................................................. 18
MAINTENANCE
Changing the V-belt ...................................................... 19
Cleaning the protection hood ........................................20
Cleaning / changing the air fi lter ..............................20-21
Replacing the spark plug ..............................................22
Replacing the suction head ..........................................22
Replacing the starter cable ........................................... 23
Replacing the return spring ........................................... 24
Instructions for periodic maintenance ........................... 28
Cutting attachment in central / side position ................. 25
Repositioning the cutting attachment .......................25-26
SPECIAL ACCESSORIES
Diamond cutting discs, trolley, water tank
and pressure water system ............................................ 27
Service, spare parts and guarantee ................................ 28
Troubleshooting ............................................................... 29
Extract from spare parts list ....................................... 30-31
Accessories ..................................................................31
Packing
Your MAKITA Power Cut is packed in a cardboard box to pr event shipping damage.
Cardboard is a basic raw material and is consequently reuseable
or suitable for recycling (waste paper recycling).
Tamiro Kishima Rainer Bergfeld
Managing Director Managing Director
2
Delivery inventory
654321
1. Power Cut
2. Cutting disc
3. Adapter ring 20/25.4 (not in the general scope of delivery. Country-specifi c)
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 fl ying sparks!
No smoking!
No open fi re!
Direction of cutting wheel rotation
Warning: the max. peripheral
speed of the cutting disc is 80 m/s!
Cutting disc dimensions
Never use circular saw blades!
Combination Start/Stop (I/O) switch,
choke
Starting procedure
(Press decompression valve,
Engine - manual start)
Stop engine!
Warning!
Kickback!
Fuel and oil mixture
First aid
Recycling
CE - Marking
3
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 etc.
Unauthorised users:
Persons unfamiliar with the Instruction Manual, children, young
people, and persons under the infl uence 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 insuffi ciently 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 qualifi ed 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 infl uence of alcohol, drugs, medica-
tion or other substances which may impair vision, dexterity or
judgement.
- A fi re extinguisher must be available in the immediate vicinity
when working in easily infl ammable vegetation or when it has
not rained for a long time (danger of fi re).
- Asbestos and other materials that can release toxins may be cut
only with the necessary safety precautions and after notifi cation
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-
fi 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
4
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.
1
2
3
4
- 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 suffi cient
fl 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 fi 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 immediately. 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 accumulate near the fl oor (explosion hazard).
- Ensure to fi 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 fi 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 infl ammable materials or
explosive gases! The Power Cut can create sparks leading
to fi 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 inspection. Never use the Power Cut when it is not completely assembled.
5
6
3 meters
7
30 m
=
8
9
wearing Protective Equipment
5
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)
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 fi t with the
arbor or shaft. If the arbor hole is larger, it must be fi 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 instruction manual (13). Always place your left foot in the rear handle
and grasp the other handle fi rmly (with thumb and fi 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 fl 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 fi 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
infl ammable objects. The muffl er is very hot (danger of fi re).
- IMPORTANT: After wet cutting, fi rst turn off the water feed and
then let the disc run at least 30 seconds, to fl ing off the remaining
water and prevent corrosion.
6
10
min. 5 m
11
12
13
14
● Maintenance
● Refuelling
● Changing cutoff discs
● Repositioning the
cutting attachment
● Stopping work
● Transport
● Putting out of function
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 fi 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, infl ammable 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 fi 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 fl ung away by the disc with great speed. Injury
hazard!
- When cutting workpieces down to length use a fi 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.
15
16
17
18
7
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 fl 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 (fi 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 material 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 accident 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.
8
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.
19
20
21
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 fl 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 cutting disc pointing behind you (26). Avoid touching the exhaust
muffl er (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 fl uids!
• Store them lying down fl at.
• Avoid dampness, freezing temperatures, direct sunshine,
high temperatures and temperature fl 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 fi 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
24
25
26
9
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 modifi cations 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
fi rst aid kit is always immediately available close by. Immediately
replace any items used from the fi 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 fi 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!
27
SERVICE
28
29
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.
10
Technical data
Displacement cm
DPC6430 DPC6431 DPC7330 DPC7331
3
64 73
Bore mm 47 50
Stroke mm 37 37
Max. power kW 3.3 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 L
Sound power level L
Vibration acceleration a
- Tubular handle m/s
- Rear handle m/s2 5,1 / K=2 5,1 / K=2
per EN 19432
pA, eq
per EN 19432
WA, eq
per EN 19432
hv, eq
1) 4) 6)
dB (A) 99,5 / KpA=2,5 99,5 / KpA=2,5
1) 6)
dB (A) 108,9 / KWA=2,5 108,9 / KWA=2,5
1) 6)
2
5,7 / K=2 5,7 / K=2
Carburetor (diaphragm carburetor) Type WALBRO WJ-123
Ignition system (with speed limitation) Type electronic
Spark plug Type
Electrode gap mm 0.5 0.5
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Fuel consumption at max. load per ISO 8893 kg/h 1.65 2.1
Specifi c consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity l 1.1 1.1
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA oil 50:1 50:1
- when using other oils (quality grade: JASO FC or ISO EGD) 50:1 50:1
- when using Aspen Alkylat (two-stroke fuel) 50:1 (2%) 50:1 (2%)
Cutting disc for 80 m/sec.
Cutting disc for 80 m/sec.
Arbor diameter mm 20.0 (25.4) 5) 20.0 (25.4)
2)
mm
2) 5)
mm
3)
300 / 20.0 / 5
350 / 25.4 / 5
350 / 20.0 / 5
3)
3)
3)
300 / 20.0 / 5
350 / 25.4 / 5
350 / 20.0 / 5
3)
3)
5)
V-belt no. 965 300 470 965 300 470
Overall weight (tanks empty, without cutting disc) kg 9.7 9.9 9.8 10
DPC8131 DPC8132
Displacement cm
3
81 81
Bore mm 52 52
Stroke mm 38 38
Max. power kW 4,5 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 L
Sound power level L
Vibration acceleration a
- Tubular handle m/s
- Rear handle m/s2 6,1 / K=2 6,1 / K=2
per EN 19432
pA, eq
per EN 19432
WA, eq
per EN 19432
hv, eq
1) 4) 6)
dB (A) 100,3 / KpA=2,5 100,3 / KpA=2,5
1) 6)
dB (A) 109,6 / KWA=2,5 109,6 / KWA=2,5
1) 6)
2
7,8 / K=2 7,8 / K=2
Carburetor (diaphragm carburetor) Type WALBRO WJ-123
Ignition system (with speed limitation) Type electronic
Spark plug Type
Electrode gap mm 0,5 0,5
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Fuel consumption at max. load per ISO 8893 kg/h 2,3 2,3
Specifi c consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity l 1,1 1,1
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA oil 50:1 50:1
- when using other oils (quality grade: JASO FC or ISO EGD) 50:1 50:1
- when using Aspen Alkylat (two-stroke fuel) 50:1 (2%) 50:1 (2%)
Cutting disc for 80 m/sec.
Cutting disc for 80 m/sec.
Arbor diameter mm 20,0 (25,4)
2)
mm 350 / 20,0 / 5 3) 400 / 20,0 / 5 3)
2) 5)
mm
350 / 25,4 / 5 3)
5)
20,0 (25,4)
400 / 25,4 / 5 3)
5)
V-belt no. 965 300 490 965 300 480
Overall weight (tanks empty, without cutting disc) kg 10,0 10,6
1)
Data apply to idle and rated speed operation at a ratio of 1/7 to 6/7. 2) Circumference speed at max. engine speed.
3)
Outside diameter / arbor hole / thickness. 4) At the workplace (at user's ear). 5) Country-specifi c. 6) Uncertainty (K=).
11
Denomination of components (Illustration shows model DPC7331)
3 4 5 6 7
2
1
12 111314
10
25
24
23
DPC7331
2008 123456
EMI OFB
973108
22045 Hamburg, Germany
XXX.XXX.XXX Typ 394
1 Handle
2 Filter cover for air fi lter and spark plug cap
3 Cover lock
4 Tubular handle
5 Muffl er
6 Protection hood
7 Grip
8 V-belt tension adjusting screw
9 Retaining nuts
10 Stand
11 Carburetor adjustment opening
12 Identifi cation plate
13 Fuel tank with handle
Identifi cation plate (12)
Indicate when ordering spare parts
Serial number
Year of manufacture
26
8
9
15 16
17
18
19
20
2122
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
12
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.
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 DPC8131 and DPC8132
No air fi lter is installed!
Before operation, insert an oiled foam fi lter
(pre-fi lter), as shown in the adjacent illus-
tration! To do this, take off the fi lter cover
(see the chapter on Cleaning / changing the
air fi lter). Before taking the foam fi lter out
of the package, knead it thoroughly.
Sequence
Mounting the cutting disc
Inspect the disc for damage.
See SAFETY INSTRUCTIONS, Page 6.
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
fi t with the arbor or shaft. If the arbor hole is larger, it must be
fi 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.
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 fi rmly (30 ± 2 Nm), as otherwise
the cutting wheel may slip during cutting.
13
Tightening the V-belt /
Checking V-belt tension
IMPORTANT
Exact V-belt tension is essential for maximum cutting performance 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 fi rst hour of operation!
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).
Fuels
Caution:
This tool uses mineral-oil products (gasoline and oil).
Be especially careful when handling gasoline.
Do not smoke. Keep tool well away from open fl ames, spark,
or fi 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 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.
To lubricate the engine, use a synthetic oil for two-stroke aircooled engines (quality grade JASO FC or ISO EGD), which
has to be added to the fuel. The engine is designed for the use
of MAKITA high-performance two-stroke engine oil at a mixture
ratio of only 50:1 to protect the environment. In addition, this
ensures a long service life and reliable operation with minimum
exhaust emissions.
Gasoline
50:1
50:1
+
1000 cm3 (1 litre) 20 cm3 20 cm
5000 cm3 (5 litre) 100 cm
10000 cm3 (10 litre) 200 cm
The correct mixture ratio:
50:1 when using MAKITA high-performance two-stroke
engine oil, i. e. mix 50 parts gasoline with 1 part
oil.
50:1 When using other synthetic two-stroke engine
oils (quality grade JASO FC or ISO EGD), i. e.
mix 50 parts gasoline with 1 part oil.
3
100 cm
3
200 cm3
3
3
14
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 fi rst mix the entire oil
quantity with half of the fuel required, then add the remaining
fuel. Shake the fi 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 specifi ed 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 muffl er. In addition, fuel consumption will
rise and performance will decrease.
Fuel mixture
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 damage 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.
Store fuel only in proper containers, in dry, cool, secure
locations!
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!
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 fi 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 fi 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.
15
Starting the engine
if
necessary
This model is fi 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 fi rst
ignition automatically closes the decompression valve.
CAUTION:
Observe the SAFETY INSTRUCTIONS on page 4 and 5!
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).
16
Grasp the tubular handle fi 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
fi 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.
Stopping the engine
Push the combination switch (10) down to position .
17
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.
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, tighten the screw a little.
Switch off the engine
18
SERVICE
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!
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 DPC8132).
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!
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 DPC6430
- 7331.
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”.
19
Cleaning the protection hood
Over time, the inside of the protective hood can become caked
with material residue (especially from wet cutting), which if
allowed to accumulate can hinder the free rotation of the cutting disc. For this reason the hood must be cleaned out from
time to time.
Take off the cutting wheel with spring washer and remove the
accumulated material from inside the hood with a strip of wood
or similar implement.
Clean the shaft and all removed parts.
Cleaning / changing the air fi lter
Turn the cover lock (11) counterclockwise to release it, and
carefully remove the fi lter cover (12).
There is a gasket (15) between the fi lter cover (12) and the
hood (14).
Remove screws (13) and take off the cover (14).
Clean the gasket (15) with a brush, and check for damage.
NOTE: To install the cutting wheel see ”Mounting the cutting
wheel”.
Take the pre-fi lter (foam, 17) out of the fi lter cover.
Pull the air fi lter insert (paper cartridge, 18) out of the cover.
Remove the inner fi lter (16) from the intake opening.
Note:
Do not allow dirt to get into the carburetor!
Switch the combination switch to ”Choke” or cover the carburetor with a clean cloth.
20
CAUTION:
Turn off the engine before cleaning the air fi lter! Never clean out the air fi lter with compressed air! Do not clean the
pre-fi lter and inner fi lter with fuel.
The service life of the engine depends on the condition and regular maintenance of the fi lter elements. Failure to
perform maintenance and cleaning at the prescribed intervals will cause increased wear inside the engine!
If the air fi lter becomes damaged, replace immediately! Pieces of cloth or large dirt particles can destroy the engine!
Do not work in dusty conditions when it can be avoided! The fi ne dust generated when dry-cutting concrete and stone
is hazardous to the health of the operator and also shortens the service life of the engine. Whenever possible, wet-cut
with water when working in concrete and stone, to bind the dust.
Pre-fi lter (dry foam)
Only for models DPC6430 - DPC7331
If the pre-fi lter (1, Order No. 395 173 080) is dirty, wash
it out in lukewarm water with standard dishwashing liquid
or MAKITA fi lter cleaner (Order No. 980 008 627). If using
MAKITA fi lter cleaner, proceed as described after the text
section "Cleaning".
Let the pre-fi lter dry thoroughly.
NOTE: The pre-fi lter must be cleaned daily, or several times
daily if working under dusty conditions. If cleaning is not
possible on-site, have spare pre-fi lters on hand. Replace the
pre-fi lter at least every 25 operating hours.
To improve fi ltration effectiveness, the pre-fi lter can be wet-
ted with air-fi lter oil. Before adding air-fi lter oil, carefully
wash the fi lter with air-fi lter cleaner. Care for the oiled air
fi lter as described for DPC8131 and DPC8132.
To insert the pre-fi lter in the fi lter cover, position it so it fi ts
the space in the cover and then press it in (5). The pre-fi lter
must fi t completely and cover all parts of the fi lter space,
without leaving any spaces unfi ltered.
Pre-fi lter (foam with air-fi lter oil)
Only for models DPC8131 and DPC8132
Clean or replace (when cutting with high dust amounts):
• Daily
or at least every
• 4 operating hours, or
• 8 tank fi llings, or
• 8 litres fuel mixture.
Clean or replace (when cutting wet, or when cutting steel):
• weekly
or at least every
• 25 operating hours, or
• 50 tank fi llings, or
• 55 litres fuel mixture.
Cleaning: Cleaning: Rinse off coarse dirt in running water.
Knead a capful MAKITA fi lter cleaner (Order No. 980 008 627)
into the foam material of the pre-fi lter (1, Order No. 395 173
090) until it suds up well.
Rinse out pre-fi lter thoroughly in running water.
Let the pre-fi lter dry thoroughly.
In order to ensure full fi ltration effectiveness, air-fi lter
oil must be used with the pre-fi lter. Wet the pre-fi lter
with a capful (about 20 ccm) of MAKITA air-fi lter oil
(Order No. 980 008 628, biodegradable).
Knead the pre-fi lter to evenly distribute the oil. Then
squeeze out any excess oil.
NOTE: If using other air-fi lter oils, follow the manufacturer’s
instructions.
If cleaning is not possible on-site, have spare pre-fi lters on
hand (Order No. 395 173 090).
To insert the pre-fi lter in the fi lter cover, position it so it fi ts the
space in the cover and then press it in (5). The pre-fi lter must
fi t completely and cover all parts of the fi lter space, without
leaving any spaces unfi ltered.
Inner fi lters (all models)
Wash out the dirty inner fi lter (3, Order No. 394 173 020)
in lukewarm soapy water with regular dishwashing liquid or
MAKITA fi lter cleaner (Order No. 980 008 627).
Let the inner fi lter dry thoroughly.
Air fi lter insert (paper cartridge, all models)
The air fi lter insert (2, Order No. 395 173 010) fi lters the intake
air through a very fi ne paper fi lter lamella system. For the rea-
son the cartridge must never be washed. Clean the air fi lter
insert once a week.
To clean the air fi lter insert, spread it out slightly and carefully
tap it against a clean surface.
Replace the air fi lter insert every 100 operating hours. Replace
it immediately if there is a drop in power, drop in speed, or
smoke in the exhaust.
Before installing the fi lter system, check the intake opening to
make sure no dirt particles have fallen in. If they have, remove
them.
21
Replacing the spark plug
CAUTION:
Do not touch the spark plug or plug cap if the engine is
running (high voltage).
Switch off the engine before starting any maintenance
work.
A hot engine can cause burns. Wear protective gloves!
The spark plug (Order No. 965 603 021) must be replaced in
case of damage to the insulator, electrode erosion (burn) or if
the electrodes are very dirty or oily.
Remove the fi lter cover and hood. See Cleaning / changing
the air fi lter.
Pull the plug cap (7) off the spark plug. Use only the combination
wrench supplied with the saw to remove the spark plug.
CAUTION: To prevent damage to the decompression valve
(8), when unscrewing the spark plug position the combination tool in such a way that it does not impact the valve.
Electrode gap
The electrode gap must be 0.5 mm.
Checking the ignition spark
Insert the combination tool (9) between the ventilation hood and
cylinder only as shown in the illustration.
CAUTION!
Do not insert the combination tool into the spark plug hole,
but make contact only with the cylinder (otherwise you may
damage the engine).
Using insulated pliers, hold the spark plug (10) (unscrewed but
with the plug cap on) against the combination tool (away from
the spark plug hole!).
Switch the combination switch (11) to ”I”.
Pull the starter cable hard.
If the function is correct, an ignition spark must be visible near
the electrodes.
7
8
CAUTION: Use only BOSCH WSR
6F spark plug, CHAMPION RCJ-6Y or
NGK BPMR 7A.
0,5 mm
Replacing the suction head
The felt fi lter (13) of the suction head can become clogged.
It is recommended to replace the suction head once every
three months in order to ensure unimpeded fuel fl ow to the
carburetor.
Unscrew the tank cap (12), pull the retainer out of the opening.
Empty fuel tank.
Use a wire hook to pull the suction out of the tank opening for
replacement.
Caution: Do not allow fuel to come into contact with skin!
22
Replacing the starter cable
Remove four screws (14). Remove starter housing (15).
Unscrew two screws (16) and carefuly remove the air guide
(17) from the starter housing (15). Proceed in the order (A - B
- C - D).
Remove all pieces of cable (18).
Thread in a new starter cable (dia 4.0 mm, length 1000 mm) as
shown (don’t forget the disc (19)) and knot both ends.
Pull knot (20) into the cable pulley (21).
CAUTION: Do not let the knots or the cable ends protrude from
the outside of the cable pulley.
Pull knot (22) into the cable grip (23).
Guide the cable into the recess (24) on the cable drum and
use the cable to turn the drum two turns in the direction shown
by the arrow.
Holding the cable drum in your left hand, straighten out the twist in
the cable with your right hand, pull the cable tight, and hold.
Release the cable drum. The drum´s spring force will now wind
the cable around the drum.
Repeat three times. The starter grip must be upright on the
starter housing.
NOTE: With the cable pulled all the way out, it must still be
possible to turn the pulley another 1/4 turn against the return
spring.
CAUTION!
Injury hazard! When you pull out the starter cable hold the
starter handle fi rmly. It will whip back if the cable pulley is
released by accident.
Install the air guide (17) in reverse order. Make sure that the
nub (25) fi ts into the slot (26) in the starter housing.
When putting the starter housing back on, it may be necessary
to pull the starter handle slightly until the starting mechanism
engages.
23
Replacing the return
spring
Remove the starter housing (see “Replacing the starter
cable”).
Take the air guide off the starter housing (see “Replacing the
starter cable”).
Take off circlip (1) (circlip pliers, see “Accessories”).
Remove the cable pulley (2).
Unscrew screw (3).
Evenly lever the return spring (4) out of the catch using a screw-
driver or similar tool. Be extremely careful - the return spring
is under tension and can pop out of its housing!
CAUTION! Injury hazard! Wear eye protection and work
gloves when performing this work!
Replacement return springs are delivered already tensioned in
the housing. CAREFUL - the spring can pop out. If it does,
it can be put back in as shown in the diagram (observe the
direction of rotation).
Before installing the new return spring (4) in the starter housing, grease it lightly with multipurpose grease, Order No. 944
360 000. Then position it and press it until the tabs (5) engage
in the slots.
Do not grease the cable drum (2) or bearing journal!
Screw in bolt (3) but do not tighten it hard.
Turn the cable pulley slightly when putting it back on, until you
hear it catch. Put the circlip back on.
Wind on the starter cable (see above under “Replacing the
starter cable”).
Reinstall the air guide (see above under “Replacing the starter
cable”)
When putting the starter housing back on, it may be necessary
to pull the starter handle slightly until the starting mechanism
engages.
24
89
10 11
Cutting attachment in
central / side position
NOTE: The Power Cut is delivered with the cutting attachment
mounted in the middle position (1). For cutting up against obstacles, such as curbs or walls, the cutting attachment can be
mounted to one side (2). Use this position only when actually
necessary, and afterwards return the cutting attachment to the
middle position
In this position the Power Cut has better balance, is easier to
guide, and is not as fatiguing for the operator.
Repositioning the cutting attachment
Loosen nuts (5).
Loosen the tightening screw (3) (counter-clockwise) until the
end of the screw (4) is visible in the gap.
Loosen and unscrew the screw (detail X, only for DPC8132).
Unscrew the nuts (5) and remove the cover (6).
Use the combination tool (8) to lever out the stop pin (9) as
shown in the illustration, until the protective hood (11) can be
turned.
NOTE: The turn stop (7) is deactivated when the stop pin (8) is
removed. This permits the hood (11) to be turned farther than
the turn stop (7).
Unscrew the grip (10) and turn the protective hood (11) as
shown in the illustration.
Disengage the V-belt (12) and remove the cutting attachment.
NOTE: The illustration shows the V-belt for models DPC6430
- 7331.
12
25
Press the cutting attachment (13) onto the drive arm in the
side position.
Guide the V-belt (14) over the V-belt pulley (15).
NOTE: The illustration shows the V-belt for models DPC6430
- 7331.
13 1415
Put the guard plate (16) on.
Screw on nuts (17) and tighten by hand.
To tighten the V-belt see ”Tightening the V-belt / Checking V-
belt tension”.
Screw in and tighten the screw (detail X, only for DPC8132).
Tighten the nuts (17) fi rmly with the combination wrench.
Replace the grip (18) as shown.
IMPORTANT:
When you reposition the cutting attachment, the direction
of rotation of the cutting wheel changes.
If a rotation direction is marked on the cutting disc, make
sure the disc turns in the right direction.
18
16
17
26
SPECIAL ACCESSORIES
Diamond cutting discs (1)
MAKITA diamond cutting discs meet the highest demands
in working safety, ease of operation, and economical cutting performance. They can be used for cutting all materials
except metal.
The high durability of the diamond grains ensures low wear
and thereby a very long service life with almost no change in
disc diameter over the lifetime of the disc. This gives consistent
cutting performance and thus high economy. The outstanding
cutting qualities of the discs make cutting easier.
The metal disc plates give highly concentric running for minimal
vibration during use.
The use of diamond cutting discs reduces cutting time signifi cantly. This in turn leads to lower operating costs (fuel
consumption, wear on parts, repairs, and last but not least
environmental damage).
Guide trolley (2)
The MAKITA guide trolley makes it much easier to do straight
cuts, while simultaneously enabling almost untiring working. It can
be adjusted for the operator´s height, and can be operated with
the cutting attachment mounted in the middle or on the side.
NOTE: Before mounting the DPC8132 Power Cut on the guide
trolley, it will be necessary to remove the stand (see illustration
(*) in the chapter “Extract from the spare parts list”).
For easier refuelling when using the trolley, we recommend
adding an angled tank fi ller neck (3).
A depth limiter can be added for still easier and more accurate
cutting. It makes it possible to maintain a precise predetermined
cut depth (4).
To keep down dust and for better cutting-disc cooling, MAKITA
offers several options for wetting the disc during operation.
Water tank (5)
The water tank is designed to be mounted on the guide trolley. Its high capacity makes it especially suitable for situations
involving frequent site changes. For fi lling or for fast changing
to reserve tanks, the tank can be simply lifted off the trolley.
The water tank comes with all necessary connections and
hoses. Mounting to the trolley and Power Cut are very fast
and simple.
Mains/pressure water system (6)
The mains/pressure water system is designed to be mounted
on the Power Cut. It can be used with or without the trolley,
but is especially suitable for applications involving hand-held,
stationary cutting. The water line has a fast-release connection,
and can be fed either from a mains supply or from a pressure
tank (7).
The water system comes with all necessary connections
and lines. It can be quickly and easily mounted on the Power
Cut.
See “Accessories” for order number.
5
2
4
1
6
7
3
27
Instructions for periodic maintenance
To ensure long life, prevent damage and ensure the full functioning of the safety features the following maintenance must be performed regularly. Guarantee claims can be recognized only if this work is performed regularly and properly. Failure to perform the
prescribed maintenance work can lead to accidents!
Users of the Power Cut must not perform any maintenance work not described in this Instruction Manual. All such work must be
carried out by a MAKITA service centre.
Page
General Entire Power Cut Clean exterior, check for damage. In case of damage,
have repaired by a qualifi ed service centre immediately
Cutting disc Inspect regularly for damage and wear. 6
Clutch Have inspected at a service center.
Protection hood Clean, Check position (impact plate) 16
Before each start Cutting disc Inspect for damage and make sure the cutting wheel is 6
right for the job
V-belt Check V-belt tension 14
Protective hood Adjust position
Combination switch, Functional check
Safety locking button, Functional check
Throttle lever Functional check 16
Tank cap Check for tightness
Every day Air fi lter Clean (if necessary more frequently); pre-fi lter (foam)
maintenance as described above under Cleaning /
changing the air fi lter 20-21
Idle speed Check (cutting disc must not turn on idle) 18
Every week Starter housing Clean to ensure proper air cooling 12
Starter cable Check for damage 23
V-belt Check V-belt tension, inspect for damage and wear 14, 19
Air fi lter insert Clean, replace after 100 operating hours 21
Spark plug Check and replace if necessary 22
Muffl er Check tightness of mounting 12
Screws and nuts Check their condition and that they are fi rmly secured.
Every 3 months Suction head Replace 22
Fuel tank Clean
Annually Entire Power Cut Check at an authorized service centre
Storage Entire Power Cut Clean exterior, check for damage. In case of damage,
have repaired by a qualifi ed service centre immediately
Cutting disc Remove and clean 13
Fuel tank Empty and clean
Carburetor Run empty
Service, spare parts and guarantee
Maintenance and repair
The maintenance and repair of modern cutoff saws and their safety-related components requires qualifi ed technical training and a
workshop equipped with special tools and testing devices.
We therefore recommend that you consult a MAKITA service centre for all work not described in this instruction manual.
The MAKITA service centres have all the necessary equipment and skilled and experienced personnel, who can work out cost-effective
solutions and advise you in all matters.
To fi nd your local distributor, please visit www.makita-outdoor.com
Spare parts
Reliable long-term operation, as well as the safety of your Power Cut, depend among other things on the quality of the spare parts
used. Use only original MAKITA parts, marked
Only original parts are from the same production line as the original unit and therefore ensure the highest possible quality of materials, dimensions, functioning and safety.
Only original spare parts and accessories guarantee the highest quality in material, dimensions and function.
Original spare parts and accessories can be obtained from your local dealer. He will also have the spare part lists to determine the
required spare part numbers, and will be constantly informed about the latest improvements and spare part innovations.
Please bear in mind that if parts other than original MAKITA spare parts are used, this will automatically invalidate the MAKITA
product guarantee.
We will furthermore not accept any liability damages arising from the use of non-MAKITA spare parts.
28
Guarantee
MAKITA guarantees the highest quality and will therefore reimburse all costs for repair by replacement of damaged parts resulting
from material or production faults occurring within the guarantee period after purchase. Please note that in some countries particular
guarantee conditions may exist. If you have any questions, please contact your salesman, who is responsible for the guarantee of
the product.
Please note that we cannot accept any responsibility for damage caused by:
• Disregard of the instruction manual.
• Non-performance of the required maintenance and cleaning.
• Incorrect carburetor adjustment.
• Normal wear and tear.
• Obvious overloading due to permanent exceeding of the upper performance limits.
• The use of other than original MAKITA cutting discs.
• Use of force, improper use, misuse or accidents.
• Damage from overheating due to dirt on the fan housing.
• Work on the Power Cut by unskilled persons or inappropriate repairs.
• Use of unsuitable spare parts or parts which are not original MAKITA parts, insofar as they have caused the damage.
• Use of unsuitable or old oil.
• Damage related to conditions arising from lease or rent contracts.
• Damages caused by disregarding loose outer bolted connections.
Cleaning, servicing and adjustment work is not covered by the guarantee. All repairs covered by the guarantee must be performed
by a MAKITA service centre.
Troubleshooting
Malfunction System Observation Cause
Cutting disc does not
start turning Clutch Engine runs Damage to clutch
Cutting disc runs in idle Carburetor, Cutting disc runs Incorrect idle speed,
clutch blocked clutch
Engine does not start or Ignition system Ignition spark Malfunction in fuel supply system, com-
only with diffi culty pression system, mechanical malfunction.
No ignition spark Switch on STOP, fault or short-circuit in the
wiring, plug cap or spark plug defective.
Fuel supply Fuel tank is fi lled Choke in wrong position, carburetor defective,
suction head dirty, fuel line bent or interrupted.
Compression Inside Cylinder base packing ring defective, radial
system shaft packings defective, cylinder or piston rings
defective
Outside Spark plug does not seal.
Mechanical Starter does not engage Spring in starter broken, broken parts
malfunction inside the engine.
Warm start diffi culties Carburetor Fuel tank is fi lled Wrong carburetor adjustment.
Ignition spark
Engine starts, but Fuel supply Fuel tank is fi lled Wrong idling adjustment, suction head or
dies immediately carburetor dirty.
Tank venting defective, fuel line interrupted,
cable defective, STOP switch defective.
Decompression valve dirty
Insuffi cient power Several systems Engine is idling Air fi lter dirty, wrong carburetor adjustment,
may be involved muffl er clogged, exhaust channel in cylinder
simultaneously clogged.
29
Extract from the spare parts list
Use only original MAKITA parts. For repairs and
replacement of other parts, see your MAKITA service centre.
DPC6430, 6431
DPC7330, 7331
DPC8131, 8132
29
30
*
32
30
28
31
22
Extract from the spare parts list
Use only original MAKITA parts. For repairs and
replacement of other parts, see your MAKITA service centre.
Pos. MAKITA-No. Qty. Denomination
Synthetic resin cutting disc
1 966 121 150 1 Cutting disc for steel, dia. 300/20 mm
966 141 150 1 Cutting disc for steel, dia. 350/20 mm
966 144 150 1 Cutting disc for steel, dia. 350/25,4 mm
966 161 050 1 Cutting disc for steel, dia. 400/20 mm
1 966 121 120 1 Cutting disc for masonry, dia. 300/20 mm
966 141 120 1 Cutting disc for masonry, dia. 350/20 mm
966 144 120 1 Cutting disc for masonry, dia. 350/25,4 mm
966 161 120 1 Cutting disc for masonry, dia. 400/20 mm
3 994 280 250 1 Hex screw M8x25
4a 965 300 470 1 V-belt (for DPC6430 - 7331)
4b 965 300 490 1 V-belt (for DPC8131)
4b 965 300 480 1 V-belt (for DPC8132)
5 963 601 121 1 Suction head
6 010 114 091 1 Tank cap, compl. (fuel)
8 395 173 020 1 Inner fi lter
9 395 173 010 1 Air fi lter insert (paper cartridge)
10 395 173 080 1 Pre-fi lter (foam, for DPC6430 - 7331)
10 395 173 090 1 Pre-fi lter (foam, for DPC8131, 8132)
11 965 603 021 1 Spark plug
12 122 164 010 1 Starter cable ø 4,0x1000 mm
13 001 161 020 1 Starter grip
14 394 163 020 1 Return spring in housing
15 923 208 004 2 Hexagonal nut M8
16 941 719 140 1 Universal wrench SW 13/19
17 940 827 000 1 Offset screwdriver T27
18 944 340 001 1 Screwdriver (carburetor)
Accessories (not delivered with the Power Cut)
Diamond cutting disc
22 966 221 021 1 Concrete Standard, dia. 300/20 mm
22 966 321 020 1 Concrete DiaDuran, dia. 300/20 mm
22 966 221 011 1 Asphalt Standard, dia. 300/20 mm
22 966 321 010 1 Asphalt DiaDuran, dia. 300/20 mm
22 966 241 021 1 Concrete Standard, dia. 350/20 mm
22 966 341 020 1 Concrete DiaDuran, dia. 350/20 mm
22 966 241 011 1 Asphalt Standard, dia. 350/20 mm
22 966 341 010 1 Asphalt DiaDuran, dia. 350/20 mm
22 966 244 021 1 Concrete Standard, dia. 350/25,4 mm
22 966 344 020 1 Concrete DiaDuran, dia. 350/25,4 mm
22 966 244 011 1 Asphalt Standard, dia. 350/25,4 mm
22 966 344 010 1 Asphalt DiaDuran, dia. 350/25,4 mm
22 966 264 020 1 Concrete Standard, dia. 400/25,4 mm
- 394 228 121 1 Adapter ring, dia. 20/25,4 mm
24 010 114 081 1 Angle fuel-tank fi ller neck, cpl.
25 700 394 355 1 Guide trolley DT2000 cpl.
26 957 802 600 1 Pressure water tank, cpl.
27 394 365 102 1 Mains water connection, cpl.
28 394 114 271 1 Stand with rollers, complete
(included only with DPC8132, but without items 29, 30, 31)
29 394 114 240 2 Bushing
30 394 114 230 2 Roller
31 908 006 355 2 Star-head screw
32 909 905 165 4 Star-head screw
- 949 000 035 1 Combined can (for 5l fuel, 2.5l oil)
- 980 008 627 1 Filter cleaner (0.5l)
- 980 008 628 1 Air-fi lter oil (1.0l)
DPC6430, 6431
DPC7330, 7331
DPC8131, 8132
31
To fi nd your local distributor, please visit
www.makita-outdoor.com
Makita Werkzeug GmbH
Postfach 70 04 20
D-22004 Hamburg
Germany
Specifi cations subject to change without notice
Form: 995 704 449 (6.09 GB)
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