Dolmar PC-8114 Instruction manual

Instruction Manual
Important:
Read this instruction manual carefully before putting the Power Cut into operation and strictly observe the
safety regulations!
Keep this instruction manual!
PC-6412 S
PC-6414 S
PC-7312 S
PC-7314 S
PC-8114
PC-8116
http://www.dolmar.com
Thank you for purchasing a DOLMAR product!
Table of contents
Congratulations on choosing a DOLMAR Power Cut cutoff saw!
We are conÞdent that you will be satisÞed with this modern piece
of equipment. DOLMAR GmbH of Hamburg, Germany is the
world’s oldest manufacturer of gasoline-powered chainsaws - we
got our start in 1927 - giving us very extensive experience with
power hand tools. Like our chain saws, the DOLMAR Power
Cuts feature specially designed high-performance engines
with outstanding power-to-weight ratios, for heavy-duty yet
lightweight tools.
Other advantages of the DOLMAR Power Cuts:
• Sturdy construction and high reliability.
• Maintenance-free electronic ignition, hermetically sealed to
protect against dust and moisture.
• Vibration damping with the DOLMAR 2-mass system (D2M)
for tireless working even when guiding the Power Cut by
hand.
• Five-stage air-Þlter 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 ßush 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.
Packing ................................................................................ 2
Delivery inventory .............................................................. 3
Symbols ............................................................................... 3
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 satisÞed with your DOLMAR 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 Þrst time, and strictly
observe the safety regulations! Failure to observe these
precautions can lead to severe injury or death!
EU Conformity Declaration
The undersigned, Shigeharu Kominami and Rainer Bergfeld,
as authorized by DOLMAR GmbH, declare that the DOLMAR
machines,
Type: (325) PC-6412 S, PC-6414 S; (394) PC-7312 S, PC-7314
S; (326) PC-8114, PC-8116
manufactured by DOLMAR GmbH, Jenfelder Str. 38, 22045
Hamburg, Germany, conforms to the basic safety and health
requirements of the applicable EU guidelines:
Page
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 Þlter ..............................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
EU Machine guideline 98/37/ EG, EU EMC guideline 89/336/
EWG (modiÞed by 91/263/ EWG, 92/31/ EWG and 93/68/
EWG), Noise emission 2000/14/EG.
The most important standards applied to properly meet the requirements of the above EU guidelines were: EN 1454, 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 (Lwa) is 114 dB(A). The guaranteed noise
level (Ld) is 115 dB(A).
Hamburg, 4.4.2006
For DOLMAR GmbH
Shigeharu Kominami
Managing Director
2
Rainer Bergfeld
Managing Director
Packing
Your DOLMAR 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).
Delivery inventory
6
5
4
3
2
1
1. Power Cut
2. Cutting disc
3. Adapter ring 20/25.4 (not in the general scope of delivery. Country-speciÞc)
4. Screwdriver (for carburetor adjustment)
5. Offset screwdriver
6. Universal wrench 13/19
7. Instruction manual (not shown)
In case one of the parts listed should not be included in the
delivery inventory, please consult your sales agent.
Symbols
You will notice the following symbols on the Power Cut and in the Instruction Manual:
Read instruction manual and
follow the warning- and safety precautions!
Never use circular saw blades!
Particular care and caution!
Combination Start/Stop (I/O) switch,
choke
Locked / Unlocked
Forbidden!
Wear helmet and eye, respiratory
and hearing protection!
Wear protective gloves!
Press decompression valve
Engine - manual start
Wear respiratory protection!
Working in winter
Hazardous dust and/or
gas emission!
Stop engine!
Fire hazard from ßying sparks!
Warning!
Kickback!
No smoking!
Fuel and oil mixture
No open Þre!
First aid
Direction of cutting wheel rotation
Recycling
Warning: the max. peripheral
speed of the cutting disc is 80 m/s!
Cutting disc dimensions
CE - Marking
3
SAFETY PRECAUTIONS
Intended use
Power Cut
wear protective goggles (C) or visor when using the 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.
-
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.
Unauthorised users:
Persons unfamiliar with the Instruction Manual, children, young
people, and persons under the inßuence of alcohol, drugs or medications 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 operation of this particular cutoff saw. Users insufÞciently 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 qualiÞed 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 inßuence of alcohol, drugs, medication or other substances which may impair vision, dexterity or
judgement.
-
A Þre extinguisher must be available in the immediate vicinity
when working in easily inßammable vegetation or when it has
not rained for a long time (danger of Þre).
-
Asbestos and other materials that can release toxins may be cut
only with the necessary safety precautions and after notiÞcation
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).
1
2
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 tightÞtting 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
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 sufÞcient
ßame-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 Þres (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 ßoor (explosion hazard).
-
Ensure to Þrmly 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 Þrst, and then the gasoline.
-
Use only approved and marked containers for the transport and
storage of fuel.
-
Keep fuel away from children!
5
6
3 meters
7
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 inßammable materials or
explosive gases! The Power Cut can create sparks leading
to Þre 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.
30 m
8
= wearing Protective Equipment
9
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 Þt with the
arbor or shaft. If the arbor hole is larger, it must be Þtted 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 Þrmly (with thumb and Þngers). 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 ßies 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 Þngers.
- 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
inßammable objects. The mufßer is very hot (danger of Þre).
- IMPORTANT: After wet cutting, Þrst turn off the water feed and
then let the disc run at least 30 seconds, to ßing off the remaining
water and prevent corrosion.
10
min. 5 m
11
12
13
● Maintenance
● Refuelling
● Changing cutoff discs
● Repositioning the
cutting attachment
● Stopping work
● Transport
● Putting out of function
14
6
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 Þgure 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.
15
Working behavior / Method of working
-
-
-
-
-
-
-
Before starting work, check the work area for any hazards
(electrical wires, inßammable 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 Þrmly 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 ßung away by the disc with great speed. Injury
hazard!
When cutting workpieces down to length use a Þrm 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.
16
17
18
7
When using synthetic resin cutting discs, always observe the following:
Cutting masonry and concrete
IMPORTANT!
CAUTION:
Always wear approved respiratory protection!
-
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 ßuids.
-
Do not expose resin cutting discs to high humidity or
rain!
Asbestos and other 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. 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.
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.
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.
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 (Þre 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!
19
20
CAUTION!
If there is a chance that the material is under stress, be prepared 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
21
In wet cutting, the disc is wetted at an equal rate on both sides by
a trickle of water. DOLMAR 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.
23
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 ßat 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
mufßer (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 ßuids!
• Store them lying down ßat.
• Avoid dampness, freezing temperatures, direct sunshine,
high temperatures and temperature ßuctuations, 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 Þrst 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.
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.
27
Observe the accident prevention instructions issued by
trade associations and insurance companies. NEVER
make any modiÞcations 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
DOLMAR Service.
Use only original DOLMAR spares and accessories.
The use of non-DOLMAR 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
DOLMAR.
SERVICE
28
First aid
For the event of a possible accident, please make sure that a
Þrst aid kit is always immediately available close by. Immediately
replace any items used from the Þrst 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 Þngers, 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.
10
29
Technical data
Displacement
Bore
Stroke
Max. power
Max. torque
Idling speed
Clutch engagement speed
Engine speed limitation
Max. spindle speed
Sound pressure level LpA eq per EN 1454 1) 4)
Sound power level LWA eq per EN 1454 1)
Vibration acceleration ah,w per EN 1454
- Tubular handle (idle/rated spindle speed)
- Rear handle (idle/rated spindle speed)
Carburetor (diaphragm carburetor)
Ignition system (with speed limitation)
Spark plug
Electrode gap
Fuel consumption at max. load per ISO 8893
SpeciÞc consumption at max. load per ISO 8893
Fuel tank capacity
Mixture ratio (fuel/two-stroke oil)
- when using DOLMAR HP 100 high-performance oil
- when using DOLMAR oil
Cutting disc for 80 m/sec. 2)
Cutting disc for 80 m/sec. 2) 5)
Arbor diameter
V-belt
Overall weight (tanks empty, without cutting disc)
PC-6412 S
PC-6414 S
cm3
mm
mm
kW
Nm
1/min
1/min
1/min
1/min
dB (A)
dB (A)
64
47
37
3.3
4.0
2.500
3.800
9.350 ± 145
4.300
97
109
m/s2
m/s2
Type
Type
Type
mm
kg/h
g/kWh
l
6/5
8/6
mm
mm
mm
no.
kg
100:1
50:1
300 / 20.0 / 5 3) 350 / 20.0 / 5 3)
350 / 25.4 / 5 3)
20.0
(25.4)5)
965 300 470
9.7
9.9
cm3
mm
mm
kW
Nm
1/min
1/min
1/min
1/min
dB (A)
dB (A)
81
52
38
4,5
5,2
2.500
3.800
9.350 ± 145
4.300
98,3
108
m/s2
m/s2
Type
Type
Type
mm
kg/h
g/kWh
l
5,6 / 6,3
8,8 / 6,0
mm
mm
mm
no.
kg
PC-7314 S
73
50
37
4.2
5.0
2.500
3.800
9.350 ± 145
4.300
99
110
7/6
8/7
TILLOTSON HS-273 A
electronic
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
0.5
0.5
1.65
2.1
500
500
1.1
1.1
PC-8114
Displacement
Bore
Stroke
Max. power
Max. torque
Idling speed
Clutch engagement speed
Engine speed limitation
Max. spindle speed
Sound pressure level LpA eq per EN 1454 1) 4)
Sound power level LWA eq per EN 1454 1)
Vibration acceleration ah,w per EN 1454
- Tubular handle (idle/rated spindle speed)
- Rear handle (idle/rated spindle speed)
Carburetor (diaphragm carburetor)
Ignition system (with speed limitation)
Spark plug
Electrode gap
Fuel consumption at max. load per ISO 8893
SpeciÞc consumption at max. load per ISO 8893
Fuel tank capacity
Mixture ratio (fuel/two-stroke oil)
- when using DOLMAR HP 100 high-performance oil
- when using DOLMAR oil
Cutting disc for 80 m/sec. 2)
Cutting disc for 80 m/sec. 2) 5)
Arbor diameter
V-belt
Overall weight (tanks empty, without cutting disc)
PC-7312 S
100:1
50:1
300 / 20.0 / 5 3) 350 / 20.0 / 5 3)
350 / 25.4 / 5 3)
20.0
(25.4)5)
965 300 470
9.8
10
PC-8116
81
52
38
4,5
5,2
2.500
3.800
9.350 ± 145
3.750
98,3
108
5,6 / 6,3
8,8 / 6,0
WALBRO WJ-105
electronic
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
0,5
0,5
2,3
2,3
500
500
1,1
1,1
100:1
50:1
350 / 20,0 / 5 3)
350 / 25,4 / 5 3)
20,0 (25,4)5)
965 300 490
10,0
100:1
50:1
400 / 20,0 / 5 3)
400 / 25,4 / 5 3)
20,0 (25,4)5)
965 300 480
10,6
1)
Figures derived in equal part from idle and max.-speed operation.
Circumference speed at max. engine speed
Outside diameter / arbor hole / thickness
4)
At the workplace (at user's ear)
5)
Country-speciÞc
2)
3)
11
Denomination of components (Illustration shows model PC-7314 S)
3
4
5
6
7
2
26
1
8
9
13
12
11
10
14 15
PC-7314 S
2007 123456
16
25
17
24
18
23
19
20
IdentiÞcation plate (12)
Indicate when ordering spare parts
EMI OFB
973108
DOLMAR GmbH, 22045 Hamburg, Germany
394.100.101
Typ 394
Serial number
22
Year of manufacture
21
1
Handle
14
Decompression valve
2
Filter cover for air Þlter and spark plug cap
15
Starter grip
3
Cover lock
16
Air intake
4
Tubular handle
17
Combination Start/Stop (I/O) switch, choke
5
Mufßer
18
Stop knob for halfway throttle
6
Protection hood
19
Safety locking button
7
Grip
20
Throttle lever
8
V-belt tension adjusting screw
21
Tank cap (fuel)
9
Retaining nuts
22
Starter housing with starter
10
Stand
23
Cutting disc
11
Carburetor adjustment opening
24
Disc bolt
12
IdentiÞcation plate
25
Spring washer
13
Fuel tank with handle
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 following assembly steps:
Only for models PC-8114 and 8116
No air Þlter is installed!
Before operation, insert an oiled foam
Þlter (pre-Þlter), as shown in the adjacent illustration! To do this, take off the
Þlter cover (see the chapter on Cleaning /
changing the air Þlter).
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
Þt with the arbor or shaft. If the arbor hole is larger, it must be
Þtted 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 Þrmly (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 Þrst 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:
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 ßames,
sparks or Þre (explosion hazard).
100:1
Gasoline
50:1
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.
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 DOLMAR 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.
14
+
1000 cm3
(1 litre)
10 cm3
20 cm3
5000 cm3
10000 cm3
(5 litre)
(10 litre)
50 cm3
100 cm3
100 cm3
200 cm3
The correct mixture ratio:
100:1 When using DOLMAR HP 100 high-performance
two-stroke engine oil, i. e. 100 parts gasoline
to 1 part oil.
50:1
When using DOLMAR high-performance twostroke engine oil, i. e. 50 parts gasoline to 1
part oil.
DOLMAR HP 100 high-performance two-stroke engine
oil is available in the following sizes to suit your individual
requirements:
50 ml order number 980 008 105
0.5 l order number 980 008 113
DOLMAR high-performance two-stroke engine oil (50:1) is
available in the following sizes to suit your individual requirements:
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.
100 ml order number 980 008 106
1 l order number 980 008 112
5 l order number 980 008 118
NOTE: For preparing the fuel-oil mixture Þrst mix the entire oil
quantity with half of the fuel required, then add the remaining
fuel. Shake the Þnished 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 speciÞed 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 mufßer. In addition, fuel consumption will
rise and performance will decrease.
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 Þller neck to keep
dirt from getting in the tank.
Place the unit on its side on an even surface.
Unscrew the tank cap and Þll 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!
Fuel mixture
If fuel gets on your clothing, change clothes immediately.
15
Starting the engine
if
necessary
This model is Þtted 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 Þrst
ignition automatically closes the decompression valve (button
pops out).
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.
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
3 meters
Grasp the tubular handle Þrmly 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
Þrst 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. The carburetor also has a Þxed
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, tighten the screw a little.
Switch off the engine
18
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 DOLMAR service center.
SERVICE
IMPORTANT:
If the cutting wheel breaks during cutting, the Power
Cut must be repaired by a DOLMAR 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 PC-8116).
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 PC-6412
- 7314).
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 Þlter
Turn the cover lock (11) to the ”Unlocked
carefully remove the Þlter cover (12).
” position and
There are two O-rings (15) between the Þlter cover (12) and
the air Þlter hood (14).
Remove screws (13) and take off the cover (14).
Clean the O-ring (15) with a brush and inspect for damage.
Take the pre-Þlter (foam, 17) out of the Þlter cover.
Pull the air Þlter insert (paper cartridge, 18) out of the cover.
Remove the inner Þlter (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
NOTE: To install the cutting wheel see ”Mounting the cutting
wheel”.
CAUTION:
Turn off the engine before cleaning the air Þlter! Never clean out the air Þlter with compressed air! Do not clean the
pre-Þlter and inner Þlter with fuel.
The service life of the engine depends on the condition and regular maintenance of the Þlter elements. Failure to
perform maintenance and cleaning at the prescribed intervals will cause increased wear inside the engine!
If the air Þlter 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 Þne 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-Þlter (dry foam)
Only for models PC-6412 S - 7314 S
If the pre-Þlter (1, Order No. 326 173 080) is dirty, wash it
out in lukewarm water with standard dishwashing liquid or
DOLMAR Þlter cleaner (Order No. 980 008 127). If using
DOLMAR Þlter cleaner, proceed as described after the text
section "Cleaning".
Let the pre-Þlter dry thoroughly.
NOTE: The pre-Þlter must be cleaned daily, or several times
daily if working under dusty conditions. If cleaning is not
possible on-site, have spare pre-Þlters on hand. Replace the
pre-Þlter at least every 25 operating hours.
To improve Þltration effectiveness, the pre-Þlter can be wetted with air-Þlter oil. Before adding air-Þlter oil, carefully
wash the Þlter with air-Þlter cleaner. Care for the oiled air
Þlter as described for PC-8114 and PC-8116.
To insert the pre-Þlter in the Þlter cover, position it so it Þts
the space in the cover and then press it in (5). The pre-Þlter
must Þt completely and cover all parts of the Þlter space,
without leaving any spaces unÞltered.
Pre-Þlter (foam with air-Þlter oil)
Only for models PC-8114 and 8116
Clean or replace (when cutting with high dust amounts):
• Daily
or at least every
• 4 operating hours, or
• 8 tank Þllings, 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 Þllings, or
• 55 litres fuel mixture.
Cleaning: Cleaning: Rinse off coarse dirt in running water.
Knead a capful DOLMAR Þlter cleaner (Order No. 980 008 127)
into the foam material of the pre-Þlter (1, Order No. 326 173
090) until it suds up well.
Rinse out pre-Þlter thoroughly in running water.
Let the pre-Þlter dry thoroughly.
In order to ensure full Þltration effectiveness, air-Þlter
oil must be used with the pre-Þlter. Wet the pre-Þlter
with a capful (about 20 ccm) of DOLMAR air-Þlter oil
(Order No. 980 008 128, biodegradable).
Knead the pre-Þlter to evenly distribute the oil. Then
squeeze out any excess oil.
NOTE: If using other air-Þlter oils, follow the manufacturer’s
instructions.
If cleaning is not possible on-site, have spare pre-Þlters on
hand (Order No. 326 173 090).
To insert the pre-Þlter in the Þlter cover, position it so it Þts the
space in the cover and then press it in (5). The pre-Þlter must
Þt completely and cover all parts of the Þlter space, without
leaving any spaces unÞltered.
Inner Þlters (all models)
Wash out the dirty inner Þlter (3, Order No. 394 173 020)
in lukewarm soapy water with regular dishwashing liquid or
DOLMAR Þlter cleaner (Order No. 980 008 127).
Let the inner Þlter dry thoroughly.
Air Þlter insert (paper cartridge, all models)
The air Þlter insert (2, Order No. 394 173 010) Þlters the intake
air through a very Þne paper Þlter lamella system. For the reason the cartridge must never be washed. Clean the air Þlter
insert once a week.
To clean the air Þlter insert, spread it out slightly and carefully
tap it against a clean surface.
Replace the air Þlter 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 Þlter 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.
Turn the cover lock (6) to the ”Unlocked
fully remove the Þlter cover (7).
” position and care-
Flip up the spark-plug cover (8).
Pull the plug cap (8) off the spark plug. Use only the combination
wrench supplied with the saw to remove the spark plug.
Electrode gap
The electrode gap must be 0.5 mm.
Checking the ignition spark
Insert the combination wrench (9) between the hood and cylinder only as shown.
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.
CAUTION: Use only BOSCH WSR 6F spark plug, CHAMPION
RCJ-6Y or NGK BPMR 7A.
Replacing the suction head
The felt Þlter (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 ßow 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
0,5 mm
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 Þrmly. 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) Þts 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 screwdriver 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
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 PC-8116).
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).
10
8
11
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.
9
NOTE: The illustration shows the V-belt for models PC-6412
- 7314).
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 PC-6412
- 7314).
13
15 14
Put the guard plate (16) on.
Screw on nuts (17) and tighten by hand.
18
To tighten the V-belt see ”Tightening the V-belt / Checking Vbelt tension”.
Screw in and tighten the screw (detail X, only for PC-8116).
Tighten the nuts (17) Þrmly 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.
16
17
If a rotation direction is marked on the cutting disc, make
sure the disc turns in the right direction.
26
SPECIAL ACCESSORIES
Diamond cutting discs (1)
Water tank (5)
DOLMAR 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 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 Þlling 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.
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 signiÞcantly. 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 DOLMAR 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.
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.
NOTE: Before mounting the PC-8116 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 Þller 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, DOLMAR
offers several options for wetting the disc during operation.
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 DOLMAR service centre.
Page
General
Entire Power Cut
Cutting disc
Clutch
Protection hood
Before each start
Cutting disc
V-belt
Protective hood
Combination switch,
Safety locking button,
Throttle lever
Tank cap
Every day
Air Þlter
Clean exterior, check for damage. In case of damage,
have repaired by a qualiÞed service centre immediately
Inspect regularly for damage and wear.
Have inspected at a service center.
Clean, Check position (impact plate)
Inspect for damage and make sure the cutting wheel is
right for the job
Check V-belt tension
Adjust position
Functional check
Functional check
Functional check
Check for tightness
6
16
6
14
16
Idle speed
Clean (if necessary more frequently); pre-Þlter (foam)
maintenance as described above under Cleaning /
changing the air Þlter
Check (cutting disc must not turn on idle)
20-21
18
Every week
Starter housing
Starter cable
V-belt
Air Þlter insert
Spark plug
Mufßer
Clean to ensure proper air cooling
Check for damage
Check V-belt tension, inspect for damage and wear
Clean, replace after 100 operating hours
Check and replace if necessary
Check tightness of mounting
12
23
14, 19
21
22
12
Every 3 months
Suction head
Fuel tank
Replace
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 qualiÞed service centre immediately
Remove and clean
Empty and clean
Run empty
Cutting disc
Fuel tank
Carburetor
22
13
Service, spare parts and guarantee
Maintenance and repair
The maintenance and repair of modern cutoff saws and their safety-related components requires qualiÞed technical training and a
workshop equipped with special tools and testing devices.
We therefore recommend that you consult a DOLMAR service centre for all work not described in this instruction manual.
The DOLMAR service centres have all the necessary equipment and skilled and experienced personnel, who can work out costeffective solutions and advise you in all matters.
To Þnd your local distributor, please visit www.dolmar.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 DOLMAR 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 DOLMAR spare parts are used, this will automatically invalidate the DOLMAR
product guarantee.
We will furthermore not accept any liability damages arising from the use of non-DOLMAR spare parts.
28
Guarantee
DOLMAR 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 DOLMAR 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 DOLMAR parts, insofar as they have caused the damage.
•
Use of unsuitable or old oil.
•
Damage related to conditions arising from lease or rent contracts.
Cleaning, servicing and adjustment work is not covered by the guarantee. All repairs covered by the guarantee must be performed
by a DOLMAR 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,
clutch
Cutting disc runs
Incorrect idle speed,
blocked clutch
Engine does not start or
only with difÞculty
Ignition system
Ignition spark
Malfunction in fuel supply system, compression 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 Þlled
Choke in wrong position, carburetor defective,
suction head dirty, fuel line bent or interrupted.
Compression
system
Inside
Cylinder base packing ring defective, radial
shaft packings defective, cylinder or piston rings
defective
Outside
Spark plug does not seal.
Mechanical
malfunction
Starter does not engage
Spring in starter broken, broken parts
inside the engine.
Warm start difÞculties
Carburetor
Fuel tank is Þlled
Wrong carburetor adjustment.
Ignition spark
Engine starts, but
dies immediately
Fuel supply
Fuel tank is Þlled
Wrong idling adjustment, suction head or
carburetor dirty.
Tank venting defective, fuel line interrupted,
cable defective, STOP switch defective.
Decompression valve dirty
InsufÞcient power
Several systems
may be involved
simultaneously
Engine is idling
Air Þlter dirty, wrong carburetor adjustment,
mufßer clogged, exhaust channel in cylinder
clogged.
29
PC-6412 S, 6414 S
PC-7312 S, 7314 S
PC-8114, PC-8116
Extract from the spare parts list
Use only original DOLMAR parts. For repairs and
replacement of other parts, see your DOLMAR service centre.
*
29 30
28
31
32
30
22
Extract from the spare parts list
Use only original DOLMAR parts. For repairs and
replacement of other parts, see your DOLMAR service centre.
Pos. DOLMAR-No. Qty.
PC-6412 S, 6414 S
PC-7312 S, 7314 S
PC-8114, PC-8116
Denomination
1
966 121 150
966 141 150
966 144 150
966 161 150
1
1
1
1
Synthetic resin cutting disc
Cutting disc for steel, dia. 300/20 mm
Cutting disc for steel, dia. 350/20 mm
Cutting disc for steel, dia. 350/25,4 mm
Cutting disc for steel, dia. 400/20 mm
1
966 121 120
966 141 120
966 144 120
966 161 120
1
1
1
1
Cutting disc for masonry, dia. 300/20 mm
Cutting disc for masonry, dia. 350/20 mm
Cutting disc for masonry, dia. 350/25,4 mm
Cutting disc for masonry, dia. 400/20 mm
3
994 280 250
1
Hex screw M8x25
4a
965 300 470
1
V-belt (for PC-6412 - 7314)
4b
965 300 490
1
V-belt (for PC-8114)
4b
965 300 480
1
V-belt (for PC-8116)
5
6
8
9
10
10
11
12
13
14
15
16
17
18
963 601 120
010 114 091
394 173 020
394 173 010
326 173 080
326 173 090
965 603 021
122 164 010
001 161 020
394 163 020
923 208 004
941 719 140
940 827 000
944 340 001
1
1
1
1
1
1
1
1
1
1
2
1
1
1
Suction head
Tank cap, compl. (fuel)
Inner Þlter
Air Þlter insert (paper cartridge)
Pre-Þlter (foam, for PC-6412 - 7314)
Pre-Þlter (foam, for PC-8114, 8116)
Spark plug
Starter cable ø4,0x1000 mm
Starter grip
Return spring in housing
Hexagonal nut M8
Universal wrench SW 13/19
Offset screwdriver T27
Screwdriver (carburetor)
Accessories (not delivered with the Power Cut)
Diamond cutting disc
22
22
22
22
966 221 020
966 321 020
966 221 010
966 321 010
1
1
1
1
Concrete Standard, dia. 300/20 mm
Concrete DiaDuran, dia. 300/20 mm
Asphalt Standard, dia. 300/20 mm
Asphalt DiaDuran, dia. 300/20 mm
22
22
22
22
966 241 020
966 341 020
966 241 010
966 341 010
1
1
1
1
Concrete Standard, dia. 350/20 mm
Concrete DiaDuran, dia. 350/20 mm
Asphalt Standard, dia. 350/20 mm
Asphalt DiaDuran, dia. 350/20 mm
22
22
22
22
966 244 020
966 344 020
966 244 010
966 344 010
1
1
1
1
Concrete Standard, dia. 350/25,4 mm
Concrete DiaDuran, dia. 350/25,4 mm
Asphalt Standard, dia. 350/25,4 mm
Asphalt DiaDuran, dia. 350/25,4 mm
-
394 228 121
1
Adapter ring, dia. 20/25,4 mm
24
25
26
27
28
010 114 081
700 394 322
957 802 200
394 365 101
394 114 271
1
1
1
1
1
29
30
31
32
-
394 114 240
394 114 230
908 006 355
913 350 164
949 000 035
980 008 127
980 008 128
2
2
2
4
1
1
1
Angle fuel-tank Þller neck, cpl.
Guide trolley PT-2000 cpl.
Pressure water tank, cpl.
Mains water connection, cpl.
Stand with rollers, complete
(included only with PC-8116, but without items 29, 30, 31)
Bushing
Roller
Star-head screw
Star-head screw
Combined can (for 5l fuel, 2.5l oil)
Filter cleaner (0.5l)
Air-Þlter oil (1.0l)
31
To Þnd your local distributor, please visit
www.dolmar.com
DOLMAR GmbH
Postfach 70 04 20
D-22004 Hamburg
Germany
http://www.dolmar.com
SpeciÞcations subject to change without notice
Form: 995 703 832 (1.07 GB)