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    www.wackergroup.com

    Operators Manual

    POWER CUT

    BTS 930

    BTS 935BTS 1030BTS 1035

    FBTS

    0200367en - 10.2002

    0008340 1030008341 1030008339 1020007975 102

    0125766

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    FOREWORD

    Foreword

    For your own safety and protection from bodily injuries, carefully read, understand and follow the safety instruc-tions in this manual.

    Please operate and maintain your Wacker machine in accordance with the instructions in this manual. YourWacker machine will reward your attention by giving trouble-free operation and a high degree of availability.

    Defective machine parts are to be replaced as soon as possible.

    All rights, especially the right for copying and distribution are reserved

    Copyright by Wacker Construction Equipment AG

    No part of this publication may be reproduced in any form or by any means, electronic or mechanical, includingphotocopying, without express permission in writing from Wacker Construction Equipment AG.

    Any type of reproduction, distribution or saving on data carriers of any type or method not authorized by Wackerrepresents an infringement of valid copyrights and will be prosecuted.We expressly reserve the right to technical modifications- even without express due notice - which aim at im-proving our machines or their safety standards.

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    TABLE OF CONTENTS

    FOREWORD 1

    Packing 4

    DELIVERY INVENTORY 5

    Symbols 5

    SAFETY PRECAUTIONS 7

    General precautions 7Personal protective 7Fuels / Refuelling 8Putting into operation 10Cutoff discs 10Kickback and lock-in 12Working behavior / Method of working 13Cutting metals 13Transport and storage 16Maintenance 16First aid 17

    TECHNICAL DATA BTS 930 / 935 19

    TECHNICAL DATA BTS 1030 / 1035 20

    DENOMINATION OF COMPONENTS 21

    PUTTING INTO OPERATION 22

    Mounting the cutting disc 22Tightening the V-belt / Checking V-belt tension 23Fuels 24Refuelling 26Starting the engine 26Cold-starting 28Warm-starting 28Stopping the engine 29Working in winter 29Adjusting the carburetor 31

    MAINTENANCE 33

    Changing the V-belt 33Cleaning the protection hood 35Cleaning / changing the air filter 35Foam prefilter and inner filter 37Replacing the spark plug 37Checking the ignition spark 39Replacing the suction head 39Replacing the starter cable 39Replacing the return spring 41Cutting attachment in central / side position 43Repositioning the cutting attachment 43

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    TABLE OF CONTENTS

    SPECIAL ACCESSORIES 45

    Instructions for periodic maintenance 46Service, spare parts and guarantee 47Troubleshooting 48

    LABELS 49

    FBTS 51

    Guide trolley: 51Safety precautions 51

    CUTTING DISCS 52

    CUTTING DISCS 54

    EC - CONFORMITY-CERTIFICATE 55

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    Thank you for purchasing a WACKER product!

    Congratulations on choosing a WACKER Power Cut cutoff saw! The WACKER Power Cuts feature speciallydesigned high-performance engines with outstanding power-to-weight ratios, for heavy-duty yet lightweighttools.

    Other advantages of the WACKER Power Cuts:

    *Sturdy construction and high reliability.

    *Maintenance-free electronic ignition, hermetically sealed to protect against dust and moisture.

    *Vibration damping with 2-mass system for tireless working even when guiding the Power Cut by hand.

    *Five-stage air-filter 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 man-ually, or on the side, for flush cuts along walls or curbsides or horizontally directly above the ground.

    *Extensive range of accessories available, such as resinoid-bonded or diamond-tipped cutting discs as well asa guide trolley, water sprinkling system or angled tank filler neck.

    We want you to be satisfied with your WACKER product.In order to guarantee the optimal function and performance of your Power Cut and to ensure your personalsafety we would request you to perform the following:

    Read this instruction manual carefully before putting the Power Cut into operation for the first time,and strictly observe the safety regulations! Failure to observe these precautions can lead to severe in-jury or death!

    Packing

    Your WACKER 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 paperrecycling).

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    DELIVERY INVENTORY

    1. Power Cut3. Universal wrench 13/194. Offset screwdriver5. Screwdriver for carburetor adjusment In case one of the parts listed should not be included in6. Instruction manual (not shown) the delivery inventory, please consult your sales agent.

    SymbolsYou will notice the following symbols on the saw and in the Instruction Manual:

    Read instruction manual and followthe warning- and safety precautions!

    Combination Start/Stop (I/O) switch,choke

    Particular care and caution! Locked / Unlocked

    Forbidden! Press starting valve

    Wear protective helmet, eye and earprotection!

    Engine - manual start

    Wear protective gloves! Working in winter

    Wear respiratory protection! Stop engine!

    No smoking! Warning! Kickback!

    No open fire! Fuel and oil mixture

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    Direction of cutting wheel rotation First aid

    Warning: the max. peripheral speedof the cutting disc is 80 m/s!

    Recycling

    Cutting disc dimensions CE - Marking

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    SAFETY PRECAUTIONSGeneral precautions

    - The operator MUST read this instruction manual toensure safe operation (even if you already haveexperience in using cutoff saws). It is important tobe familiar with the operation of this particular cutoffsaw. Users insufficiently informed will endangerthemselves as well as others due to improperhandling.

    - Let only persons who have experience in using cutoffsaws work with this unit. When letting another personuse the Power Cut, this instruction manual must beprovided along with it.

    - First-time operators should ask a specialist to instructthem in working with gasoline-powered cutoff saws.

    - Children and persons under 18 years of age must notbe allowed to use this Power Cut. Persons over theage of 16 years may, however, use the Power Cut forthe purpose of being trained as long as they are underthe supervision of a qualified 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 bereduced. Be especially careful at the end of a workingday. Perform all work calmly and carefully. The userhas to accept liability for others.

    - Never work while under the influence of alcohol,drugs, medication or other substances which mayimpair vision, dexterity or judgement.

    - Ar fire extinguisher must be available in the immediatevicinity when working in easily inflammable vegetation

    or when it has not rained for a long time (danger offire).- Asbestos and other materials that can release toxins

    may be cut only with the necessary safety precautionsand after notification of the proper authorities andunder their supervision or that of a person appointedby them.

    Personal protective

    - In order to avoid head, eye, hand or foot injuries aswell as to protect your hearing the followingprotective equipment must be used during

    operation of the Power Cut:- The kind of clothing should be appropriate, i. e. it

    should be tight-fitting but not be a hindrance. Clothingin which grains of material can accumulate (trouserswith cuffs, jackets and trousers with wide-openpockets, etc.) must not be worn, particularly whencutting metal.

    - Do not wear any jewellery or clothing that can getcaught or distract from the operation of the Power Cut.

    - It is necessary to wear a protective helmet wheneverworking 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. Useonly approved protective helmets.

    1

    2

    3

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    - The helmet visor (B) protects the face from dust andmaterial grains. In order to prevent injuries to eyes andface, always wear protective goggles (C) or visorwhen using the Power Cut.

    - To prevent hearing damage, always wear suitablepersonal hearing protection. (ear muffs (D), earplugs, etc.). Octave brand analysis upon request.

    - When dry-cutting dust-producing materials such as

    stone or concrete, always wear approved respiratoryprotection (E).

    - Work gloves (F) of tough leather are part of therequired work kit of the Power Cut and must always beworn when working with the Power Cut.

    - Always wear safety shoes or boots (G) with steeltoes, non-skid soles, and leg protectors when workingwith the Power Cut. Safety shoes equipped with aprotective layer provide protection against cuts and

    ensure a secure footing.- Always wear a work suit (H) of sturdy material.

    Fuels / Refuelling

    - Go to a safe, level place before refuelling. Neverrefuel 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 fires (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 oilproducts. Always wear protective gloves whenrefuelling (not the regular work gloves!). Frequentlyclean and change protective clothes. Do not breathe infuel vapors. Inhalation of fuel vapours can behazardous to your health.

    - Do not spill fuel. If a spill occurs, clean off the PowerCut immediately. Fuel should not come in contact withclothes. If your clothes have come in contact with fuel,change them at once.

    - Ensure that no fuel oozes into the soil (environmentalprotection). Use an appropriate base.- Refuelling is not allowed in closed rooms. Fuel vapors

    will accumulate near the floor (explosion hazard).- Ensure to firmly tighten the screw plug of the fuel tank.

    4

    5

    6

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    - Before starting the engine, move to a location at least3 meters (approx. 3 1/4 yards) from where you fuelledthe Power Cut (7), but not within the extended swingrange 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 nearfuture.

    - When making up the gasoline/oil mixture, always putthe oil in the mixing container first, and then the

    gasoline.- Use only approved and marked containers for the

    transport and storage of fuel.- Keep fuel away from children!

    7

    3 meters

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    Putting into operation

    - Do not work on your own. There must be someonearound in case of an emergency (within shoutingdistance).

    - Observe all anti-noise regulations when working inresidential areas.

    - Never use the Power Cut near inflammablematerials or explosive gases! The Power Cut cancreate sparks leading to fire or explosion!

    - Make sure that all persons within 30 meters (33yards), such as other workers, are wearing protectivegear (see Protective Equipment) (8). Children andother unauthorized persons must remain more than 30meters away from the working area. Keep an eye outfor animals as well (9).

    - Before starting work the Power Cut must bechecked for perfect function and operating safetyaccording to the prescriptions.In particular, make sure that the cutting wheel is ingood condition (replace immediately if torn, damagedor bent), the cutting wheel is properly mounted, theprotective hood is locked in place, the hand guard isproperly mounted, the V-belt has the proper tension,the throttle moves easily and the half-throttle lockbutton functions properly, the grips are clean and dry,and the combination switch functions properly.

    - Start the Power Cut only after complete assembly and

    inspection. Never use the Power Cut when it is notcompletely assembled.

    Cutoff discs

    - The protection hood must always be on! Changediscs 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, alwaysmake sure to observe the direction of rotation

    markings. Diamond discs should not be used forcutting metal.- 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)!

    8= waring Protective

    Equipment

    9

    10

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    Caution!Never change direction (turning radius less than 5meters / 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 isintended for. The proper type of disc must be used, foreither metals or concrete.

    - The arbour hole (bore) of the cutting disc must fit theshaft exactly. If the arbour hole is larger than the shaft

    diameter, a spacer ring must be used (accessories).

    - Use only cutting wheels approved by the DSA(German Abrasive Disc Committee) or equivalentorganisation for freehand cutting at up to 4370 RPM (=80 m/sec. at circumference) for 14/355 mm discs, orup to 5100 RPM (= 80 m/sec. at circumference) for12/300 mm discs.

    - The disc must be free of defects (12). Make sure bysound testing with a piece of wood. Do not usedefective cutting discs.

    Always tighten the cutting disc mounting bolt to atorque of 30 Nm. Otherwise, the cutting disc cantwist.

    - Before starting the cutting disc, make sure you have asteady footing.

    - Put the Power Cut into operation only as described inthis instruction manual (13). Always place your left footin the rear handle and grasp the other handle firmly(with thumb and fingers). Other starting methods arenot allowed.

    - When starting the Power Cut it must be well supported

    and securely held. The cutting disc must not betouching anything.

    - If the cutting disc is new, test it by running it at least 60seconds at top speed. When doing this, make surethat no persons or body parts are in the extendedswing range of the disc, in case it is defective and fliesapart.

    - When working with the Power Cut always hold itwith both hands. Take the back handle with the righthand and the tubular handle with the left hand. Holdthe handles tightly with your thumbs facing yourfingers.

    - CAUTION: When you release the throttle lever thedisc 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 indeep holes or ditches (danger of poisoning by fumes).

    - Switch off the Power Cut immediately if youobserve any changes in its operating behavior.

    11

    min. 5 m

    12

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    - Switch off the engine before inspecting the V-belttension or tightening it, replacing the cuttingwheel, repositioning the cutter attachment (side ormiddle position) or eliminating faults (14).

    - Turn off the engine immediately and check the disc ifyou hear or feel any change in cutting behaviour.

    - Turn off the Power Cut when taking a break orstopping work (14). Place the unit in such a way thatthe disc is not touching anything and cannot endanger

    anyone.- Do not put the overheated Power Cut in dry grass or

    on any inflammable objects. The muffler is very hot(danger of fire).

    - IMPORTANT: After wet cutting, first turn off the waterfeed and then let the disc run at least 30 seconds, tofling off the remaining water and prevent corrosion.

    Kickback and lock-in

    - When working with the Power Cut there is a danger ofkickback and lock-in.

    - Kickback occurs when the top of the cutting disc isused for cutting (15).

    - This causes the Power Cut to be thrown back towardthe user with great force and out of control. Risk ofinjury!To prevent kickback, observe the following:

    - Never cut with the section of the cutting disc shown infigure 15.

    Be especially careful when reinserting the discinto cuts that have already been started!

    - Lock-in occurs when the cut narrows (crack, orworkpiece 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 thePower Cut running at top speed. Always cut at topspeed.

    - Always support the workpiece so that the cut is undertension (16), so that the cut does not press togetherand jam the cutting disc as it proceeds through thematerial.

    - 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 intocontact.

    * Maintenance* Refuelling* Changing cutoff

    discs* Repositioning the

    cutting attachment* Stopping work* Transport* Putting out of

    function14

    15

    16

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    Working behavior / Method of working

    - Before starting work, check the work area for anyhazards (electrical wires, inflammable substances).Clearly mark the work area (for example with warningsigns or by cordoning off the area).

    - When working with the Power Cut hold it firmly by thefront and rear handles. Never leave the Power Cutunattended!

    - Whenever possible run the Power Cut at the ratedarbour speed (see Technical Data).

    - Only use the Power Cut during good light and visibilityperiods. Be aware of slippery or wet areas, and of iceand snow (risk of slipping).

    - Never work on unstable surfaces. Make sure thatthere are no obstacles in the working area, risk ofstumbling. 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 puttingdown and picking up the Power Cut, do not bend overfrom the waist, but instead bend in the knees. Saveyour back!

    - Guide the Power Cut in such a way that no part of yourbody is within the extended swing range of the disc(18).

    - Use cutting discs only for the materials for which theyare designed!

    - Use cutting discs only for the materials for which theyare designed. Do not use the Power Cut to lift up andshovel 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 flung away by the discwith great speed. Injury hazard!

    - When cutting workpieces down to length use a firmsupport. If necessary, secure the workpiece fromslipping, but do not steady it with your foot or allowanother person to hold it.

    - When cutting round items, always secure themagainst rotation.

    - When guiding the Power Cut by hand, use the sidemounting position of the cutter attachment only when

    actually necessary. Otherwise, always use the centralposition. This gives the unit a better balance, forreduced operator fatigue.

    Cutting metals

    IMPORTANT!Always wear approved respiratory protection!Materials that can release toxic substances maybe cut only after notifying the proper authoritiesand under their supervision or that of a personappointed by them.

    17

    18

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    CAUTION!The rapid rotation of the cutting disc heats metaland melts it at the point of contact. Swing theguard as far down as possible behind the cut (19)in order to direct the stream of sparks forward,away from the operator (fire hazard).

    - Determine the direction of cutting, mark the cut andapply the disc to the material at moderate speed, to cuta 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 thedisc 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 cutshallow around the whole piece.

    - Worn discs have a smaller diameter than new discs, sothat at the same engine speed they have a lowereffective circumferential speed and therefore do notcut 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 anotch in the thrust (pressure) side, and then cut fromthe tension side, so that the disc does not lock in (22).

    Secure cutoff material from falling!

    CAUTION!If there is a chance that the material is understress, be prepared for it to kick back. Make sureyou can get out of the way if you have to!

    Be particularly careful in scrap-metal yards,junkyards, at accident sites, and with haphazardpiles of material. Precariously balanced pieces orpieces under stress can act in unpredictable ways,

    and may slide, jump out, or burst. Secure cutoffmaterial from falling (22)! Alwaysexercise extremecaution and use only equipment that is in perfectworking order.Observe the accident-prevention rules andregulations of your employer and/or insuranceorganization.Cutting masonry concrete, asbestos or asphalt.

    19

    20

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    IMPORTANT!Always wear approved respiratory protection!Asbestos and other materials that can releasetoxic substances may be cut only after notifyingthe proper authorities and under their supervisionor that of a person appointed by them. Whencutting prestressed and reinforced concrete piles,follow the instructions and standards of theresponsible authorities or the builder of thestructural member. Reinforcement rods must be

    cut in the prescribed sequence and in accordancewith applicable safety regulations.

    NOTE!Mortar, stone, and concrete develop large quantities ofdust during cutting. To increase the lifetime of thecutting disc (by cooling), to improve visibility, and toavoid excessive dust creation, we stronglyrecommend wet cutting instead of dry cutting.In wet cutting, the disc is wetted at an equal rate onboth sides by a trickle of water. WACKER offers theright 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: Watchout for electric wires and cables!

    The rapid rotation of the cutting disc at the point ofcontact throws fragments out of the cut groove athigh speed. For your safety, swing the protectionhood down as far as possible behind the cut (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 plannedcut. This groove will then guide the Power Cutaccurately guring the actual cutoff.

    NOTE:For long, straight cuts we recommend using a trolley(24, see also SPECIAL ACCESSORIES). Thismakes it much easier to guide the unit straight.

    23

    24

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    - When cutting slabs to size, you need not cut throughthe entire material thickness (creating unnecessarydust). Instead, simply make a shallow groove, andthen knock off the excess material cleanly on a flatsurface (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 thedisc does not get jammed by the cut-off piece, and thatno persons can be injured by falling pieces.

    Transport and storage

    - Always turn off the Power Cut when transporting itor moving it from place to place on a site (26).

    - Never carry or move the unit with the engine on orthe disc moving!

    - Carry the unit only by the tubular (middle) handle withthe cutting disc pointing behind you (26). Avoid

    touching the exhaust muffler (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 fuelcan leak out. Always remove the cutting disc beforetransporting the unit in a vehicle.

    - The Power Cut should be stored safely in a dry place.It must not be left outdoors! Always dismount thecutting disc before storage. Keep the Power Cut awayfrom children.

    - Before long-term storage and before shipping thePower Cut, follow the instructions in the chapteron Periodic care and maintenance. ALWAYSempty the fuel tank and run the carburetor dry.

    - When putting cutting discs in storage, be careful to:- Clean and dry them well.- Store them lying down flat.- Avoid dampness, freezing temperatures, direct

    sunshine, high temperatures and temperaturefluctuations, as these can cause breakage andsplintering.

    - Always check new cutting discs or cutting discsthat have been in storage to make sure that theyare free of defects.

    Maintenance

    - Before performing maintenance work switch offthe Power Cut (27) and pull out the plug cap.

    - Always check the Power Cut before using it to makesure that it is in good working order. In particular, makesure that the cutting disc is properly mounted. Makesure 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

    25

    26

    27

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    adjusted correctly.- Clean the Power Cut regularly.- Check the fuel tank cap regularly for good sealing.

    Ovserve the accident prevention instructionsissued by trade associations and insurancecompanies. NEVER make any modifications to thePower Cut! You will only be putting your ownsafety at risk!

    Perform only the maintenance and repair works

    described in the instruction manual. All other workmust be carried out by WACKER Service.Use only original WACKER spares and accessories.The use of non-WACKER spares, accessories, orcutting discs increases the risk of accident. We cannotaccept any responsibility for accidents or damageoccurring in association with the use of cutting discs oraccessories other than original WACKER.

    First aid

    For the event of a possible accident, please make surethat a first aid kit is always immediately available closeby. Immediately replace any items used from the firstaid box.

    When calling for help, give the followinginformation:- Place of the accident- What happened- Number of injured people- Kind of injuries- Your name!

    NOTEIndividuals with poor circulation who are exposed toexcessive vibration may experience injury to bloodvessels or the nervous system.Vibration may cause the following symptoms to occurin the fingers, hands or wrists: Falling asleep(numbness), tingling, pain, stabbing sensation,alteration of skin colour or of the skin.

    If any of these symptoms occur, see a physician!

    28 SERVICE

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    TECHNICAL DATA BTS 930 / 935

    1) Figures derived in equal part from idle and max.-speed operation.2) Circumference speed at max. engine speed.3) Outside diameter / arbor hole / thickness.4) At the workplace (at users ear).5) With 2-cycle engine oil according to API TC, JASO FC or ISO EGD specifications.

    BTS 930 BTS 935

    Item no. 0008340 ... 0008341 ...

    Displacement cm3 64

    Bore mm 46

    Stroke mm 37Max. power kW 3,3

    Max. torque Nm 4,0

    Idling speed 1/min 2.500

    Clutch engagement speed 1/min 3.800

    Engine speed limitation 1/min 9.350

    Max. spindle speed 1/min 4.300

    Sound pressure level LpA eq per EN 14541) 4) dB (A) 97

    Vibration acceleration ah,w per EN 1454- Tubular handle (idle/rated spindle speed)- Rear handle (idle/rated spindle speed) m/s2

    7 / 58 / 6

    Carburetor (diaphragm carburetor) Type TILLOTSON HS-273 A

    Ignition system (with speed limitation) Type electronic

    Spark plug Type NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y

    Electrode gap mm 0,5

    Fuel consumption at max. load per ISO 8893 kg/h 1,65

    Specific consumption at max. load per ISO 8893 g/kWh 500

    Fuel tank capacity l 1,1

    Mixture ratio fuel/two-stroke oil 5) 50:1

    Cutting disc for 80 m/sec: 2): dimensions mm 300 / 20,0 / 53)

    Arbor diameter mm 20,0 25,4

    Overall weight (tanks empty, without cutting disc) kg 9,7 9,9

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    TECHNICAL DATA BTS 1030 / 1035

    1) Figures derived in equal part from idle and max.-speed operation.2) Circumference speed at max. engine speed.3) Outside diameter / arbor hole / thickness.4) At the workplace (at users ear).5) With 2-cycle engine oil according to API TC, JASO FC or ISO EGD specifications.

    BTS 1030 BTS 1035

    Item no. 0008339 ... 0007975 ...

    Displacement cm3 73

    Bore mm 50

    Stroke mm 37Max. power kW 4,2

    Max. torque Nm 5,0

    Idling speed 1/min 2.500

    Clutch engagement speed 1/min 3.800

    Engine speed limitation 1/min 9.350

    Max. spindle speed 1/min 4.300

    Sound pressure level LpA eq per EN 14541) 4) dB (A) 99

    Vibration acceleration ah,w per EN 1454- Tubular handle (idle/rated spindle speed)- Rear handle (idle/rated spindle speed) m/s2

    7 / 58 / 7

    Carburetor (diaphragm carburetor) Type TILLOTSON HS-273 A

    Ignition system (with speed limitation) Type electronic

    Spark plug Type NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y

    Electrode gap mm 0,5

    Fuel consumption at max. load per ISO 8893 kg/h 2,1

    Specific consumption at max. load per ISO 8893 g/kWh 500

    Fuel tank capacity l 1,1

    Mixture ratio fuel/two-stroke oi 5) 50:1

    Cutting disc for 80 m/sec: 2): dimensions mm 350 / 25,4 / 53)

    Arbor diameter mm 20,0 25,4

    Overall weight (tanks empty, without cutting disc) kg 9,8 10

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    DENOMINATION OF COMPONENTS

    Identification plate (12)Indicate when ordering spare parts

    1 Handle2 Filter cover for air filter and spark plug cap3 Cover lock4 Tubular handle5 Muffler6 Protection hood7 Hood lock8 V-belt tension adjusting screw9 Retaining nuts10 Base11 Carburetor adjustment opening

    12 Identification plate13 Fuel tank with handle14 Starting valve15 Starter grip16 Air intake17 Combination Start/Stop (I/O) switch, choke18 Stop knob for halfway throttle19 Safety locking button20 Throttle lever21 Fuel tank plug22 Fan housing with starting assembly23 Cutting disc

    24 Disc bolt25 Spring washer

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    PUTTING INTO OPERATION

    CAUTION:Always turn off the engine and pull off the sparkplug cap before doing any work on the Power Cut!Always wear protective gloves!

    CAUTION:Start the Power Cut only after complete assemblyand inspection.

    For the the following work, use the assembly toolsincluded with delivery:

    1. 13/19 AF combination wrench2. Allen key3. Carburetor adjustment screwdriver

    Place the Power Cut on a stable surface and carry outthe following assembly steps:

    Mounting the cutting disc

    Inspect the disc for damage.See SAFETY INSTRUCTIONS, Page 6.Unscrew screw (9) and remove the springwasher (8).

    Place the cutting disc (5) on the arbour (7).

    CAUTION:When using a diamond cutting disc besure to mount it so that it rotates in theproper direction!

    Place the spring washer (8) on the arbour and insertthe screw (32/9) and tighten by hand.Slowly turn the cutting disc until the stop hole of the V-belt wheel is visible in the drive-arm hole (10).Insert the Allen key (2) as far as it will go. The shaft isnow blocket.Tighten the screw with the combination wrench (1).

    NOTE: Tighten the screw firmly (30 + 2 Nm), asotherwise the cutting wheel may slip during cutting.

    30

    1 2 331

    32

    33

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    Tightening the V-belt / Checking V-belt tension

    IMPORTANT:Exact V-belt tension is essential for maximumcutting performance with minimum fuelconsumption. Improper V-belt tension will resultin premature wear to the V-belt and V-belt wheel ordamage to the clutch bearing. Retighten new V-belt after first running hour!

    NOTE: The two fastening nuts (11) must be loosenedbefore tightening the V-belt or checking the tension.To increase the belt tension, turn the tightening screw(12) to the right (clockwise) with the combinationwrench 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).

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    35

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    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 nearflames, sparks or fire (explosion hazard).

    Fuel mixture

    The Power Cut is powered by a high-performancetwo-stroke engine. It runs on a mixture of gasoline andtwo-stroke engine oil.The engine is designed for unleaded regular gasolinewith a min. octane value of 91 ROZ. In case no suchfuel is available, you can use fuel with a higher octanevalue. This will not affect the engine.

    In order to obtain an optimum engine output andto protect your health and the environment useunleaded fuel only.

    The 2-cycle engine oil must comply with API TC,JASO FC or ISO EGD specifications.

    NOTE: For preparing the fuel-oil mixture first mix theentire oil quantity with half of the fuel required, thenadd the remaining fuel. Shake the finished mixturethorouglhly before pouring it into the Power Cut tank.

    CAUTION: Open the tank cap carefully, as pressuremight have built up inside!

    It is not wise to add more engine oil than specifiedto ensure safe operation. This will only result in ahigher production of combustion residues whichwill pollute the environment and clog the exhaustchannel in the cylinder as well as the muffler. Inaddition, fuel consumption will rise andperformance will decrease.

    The correct mixture ratio:50:1 50 parts gasoline to 1 part oil.

    Gasoline 50:1

    +

    1000 cm3 (1 litre) 20 cm3

    5000 cm3 (5 litre) 100 cm3

    10000 cm3 (10 litre) 200 cm3

    36

    Fuel storageFuels have only a limited shelf-life. Buy only asmuch as you will use in 4 weeks.

    Store fuel only in approved and markedcontainers.

    AVOID SKIN AND EYE CONTACTMineral oil products degrease your skin. If yourskin comes in contact with these substancesrepeatedly and for an extended period of time, itwill dry out. Various skin desaeses may result. In

    addition, allergic reactions are known to occur.Eyes can be irritated by contact with oil. If oilcomes into your eyes, immediately wash themwith clear water.If your eyes are still irritated, see a doctorimmediately!

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    Refuelling

    IMPORTANT: FOLLOW THE SAFETYPRECAUTIONS BY ALL MEANS!

    Be careful and cautious when handling fuels.The engine must be turned off and cooled down!Carefully clean the area around the fuel-tank filler neckto keep dirt from getting in the tank.Place the unit on its side on an aven surface.

    Unscrew the tank cap and fill tank with fuel mixture.Take care to avoid spilling.Tightly screw on the plug.

    Clean screw plug and tank after refuelling. Neverstart or operate the Power Cut in the same place asit was fuelled!

    Starting the engine

    This model features a semiautomatic starting valve (1)(Happy-Start) to make starting easier. Pushing thisvalve in reduces the amount of compression effortneeded, so that it is easier to bring the engine up to

    starting speed when pulling the starter cable.The high pressure increase in the combustionchamber that results from the first ignitions willautomatically close the starting valve (button popsback out).

    CAUTION:Observe the SAFETY INSTRUCTIONS!Start the Power Cut only after complete assemblyand inspection!Move at least 3 m away from the place where you

    fuelled the Power Cut.Make sure you have a good footing, and place thePower Cut on the ground in such a way that thecutting disc is not touching anything.

    Fuel mixture38

    39

    necessary

    if

    3 meters

    40

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    Turn the hood lock (2) to position and hold it there.Pivot the hood (3) back as far as it will go.Release the hood lock and pivot the hood lightly backand forth until the lock engages.

    Cold-starting

    Move the combination switch (5) up (choke position).Grasp handle (hand pressure actuates the grip throttlelever lock (7)).Push the throttle (8) in all the way and hold it.Press the throttle lock (6) and release the throttle (8)(the throttle lock will hold the throttle at half-throttleposition). Push the starting valve (4).

    Grasp the tubular handle firmly with one hand andpress the Power Cut against the ground:Place the tip of your left foot in the rear handle.Slowly pull out the starter cable until you noticeresistance (the piston is positioned before the topdead centre).Now pull the starter cable with a fast and forceful

    movement until you hear the first ignition.

    Caution: Do not pull out the starter cable more thanapprox. 50 cm, and lead it back by hand.Press in the starting valve (42/4) in again.Put the combination switch (42/5) in position I.Keep pulling the starter cable until the engine catches.As soon as the engine is running, press the throttle(42/8) to release the half-throttle lock (42/6), allowingthe engine to idle.

    Warm-starting

    As described under Cold starting, except withoutputting the combination switch (42/5) in chokeposition.

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    42

    43

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    Stopping the engine

    Push the combination switch (1) down to position

    Working in winter

    In conditions of low temperatures and high humiditythe carburetor can ice up. To prevent this, at

    temperatures below 0o C / 32o F hot air from thecylinder chamber can be inducted. This also brings theengine to operating temperature faster.

    At temperatures above freezing the carburetormust NOT be fed heated air.Failure to follow these instructions can lead todamage to the cylinder and piston!

    Turn the cover lock (2) to the unlocked positionand carefully remove the filter cover (3).

    Take the filter element (4) out of the filter cover.

    Take the summer-winter insert out of the summer

    position (7) and press it in as illustrated in the winterposition (8).

    NOTE: At temperatures over 0o C / 3 2o F the summer-winter insert should always be placed in the summerposition (7).

    NOTE: When placing the filter element (4) in the filtercover, position it with the angled corner (5) against theangled corner in the inside of the cover.

    44

    45

    46

    3

    47 5

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    Adjusting the carburetor

    NOTE: The Power cut has been equippedwith an electronic ignition to limit thespeed. The carburetor also has a fixed jetwhich cannot be adjusted.

    At the factory the idling speed has been set toapprox. 2.300 1/min., but the running-in process ofa new engine may require slight readjustment ofthe idling speed.

    For correct adjustment of the idling speed thefollowing steps must be carried out:

    Start the engine and run it until it is warm(about 3 - 5 minutes).

    Readjust the idling speed.If the cut-off disc is still turning when the engine isrunning, unscrew the adjusting screw of the throttlevalve (9) until the cut-off disc is no longer turning. If theengine stops when running at idle speed, turn thescrew back in slightly.Now the acceleration from idling speed to maximumspeed must be tested by abruptly operating the throttle

    lever. If the acceleration is too slow, the idling speedjet screw (10) must be loosened slightly (max. 1/8 of arevolution) and the throttle valve adjusting screw (9)tightened slightly.

    If it is not possible to adjust the engine asdescribed above, it will be necessary to undertakea basic adjustment with the engine switched off.

    Switch off the engine.

    Basic adjustmentCarefully screw the idling speed jet screw (10) to theright (in a clockwise direction) until it comes to a

    noticeable stop.Now unscrew the adjusting screw approx. 1 1/8 of arevolution to the left (in an anti-clockwise direction).

    Start the engineThe idling speed and the acceleration can becorrected by turning the idling speed jet screw (10).Turn in the screw to speed up, and turn out the screwto speed down the engine.

    48

    Set the idling speed with a screwdriver (widthof blade: 4 mm).The screwdriver shown has a molded-on lug toassist in adjustment.

    49

    50

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    MAINTENANCE

    CAUTION:Before doing any work on the Power Cut turn offthe engine, remove the cutting disc, pull the plugcap off the spark plug and wear protective gloves!

    CAUTION:Start the Power Cut only after complete assemblyand inspection.

    IMPORTANT:Because many of the parts and assemblies notmentioned in this Instruction Manual are vital tothe safety of the unit, and because all parts aresubject to a certain amount of wear and tear, it isimportant for your own safety that you have theunit checked and maintained regularly by aWACKER service station.

    IMPORTANT:If the cutting wheel breaks during cutting,the Power Cut must be repaired by aWACKER service station 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.Unscrew the nuts (3) and remove the cover (4).Remove the screws (5) and (7) and remove the sidepiece (6).

    NOTE:Screw (5) is longer than screws (7). Makesure to put them back in the right placesduring reassembly!

    Unscrew screws (8) and remove the crankcasehousing cover (9).Remove the old belt (10) or belt pieces. Clean out theinside of the drive arm with a brush.Put in a new V-belt.

    NOTE:Reassemble the crankcase housing cover (9), sidepiece (53/6) and cover (53/4) in the reverse order.To tighten the V-belt see Tightening the V-belt /Checking V-belt tension.

    51

    52SERVICE

    53

    54

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    Cleaning the protection hood

    Over time, the inside of the protective hood canbecome caked with material residue (especially fromwet cutting), which if allowed to accumulate canhinder the free rotation of the cutting disc. For thisreason the hood must be cleaned out from tim to time.Take off the cutting wheel with spring washer andremove the accumulated material from inside thehood with a strip of wood or similar implement.

    Clean the shaft and all disassembled parts with acloth.

    Cleaning / changing the air filter

    Turn the cover lock (11) to the Unlocked positionand carefully remove the filter cover (12).There is an O-ring (57/15) between the filter cover (12)and the air filter hood (57/14).

    Unscrew the screws (13) and remove the air filter hood(14).Clean the O-ring (15) with a brush and inspect fordamage.

    Remove the foam prefilter (17) from the filter cover.Pull the paper cartridge (18) from the hood.

    Remove the inner filter (16) from the intake opening.

    Note:Do not allow dirt to get into the carburetor!Switch the combination switch to Choke or cover thecarburetor with a clean cloth.

    55NOTE: To install the cutting wheel seeMounting the cutting wheel.

    56

    57

    58

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    Foam prefilter and inner filter

    IMPORTANT:Do not use fuel to clean the foam prefilter and innerfilter!If the foam prefilter (1) and inner filter (2) are dirty,wash them with dishwashing liquid in lukewarm water.

    Dry thoroughly!NOTE:Under very dusty conditions it will be necessary to

    clean the foam prefilter daily. If this is not possible on-site, have a sufficient supply of reserve foam prefilterson hand.When placing the foam prefilter in the filter coverposition it with the angled corner (3) against the angledcorner in the inside of the cover (4) and press into thefilter cover.

    Paper cartridgeThe paper cartridge (5) filters the intake air through avery fine paper filter laminate system. For this reasonit must never be washed.Clean paper cartridge every week.

    Spread the paper filter a little and tap it out on a cleansurface.Replace the cartridge periodically, and especially incase of poor performance, reduced engine speed, orsmoky exhaust.Before reassembling the filter system, check theintake opening for dirt particles, and remove anyfound.

    CAUTION:If the air filter becomes damaged, replaceimmediately!Pieces of cloth or large dirt particles can destroythe engine!

    Replacing the spark plug

    CAUTION:Do not touch the spark plug or plug cap if theengine is running (high voltage).Switch off the engine before starting anymaintenance work.

    A hot engine can cause burns. Wear protectivegloves!The spark plug must be replaced in case of damage tothe insulator, electrode erosion (burn) or if theelectrodes are very dirty or oily.

    Turn the cover lock (6) to the Unlocked positionand carefully remove the filter cover (7).Pull the plug cap (8) off the spark plug. Use only thecombination wrench supplied with the saw to removethe spark plug.

    Electrode gapThe electrode gap must be 0.5 mm.

    59

    60

    0,5 mm

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    Checking the ignition spark

    Insert the combination wrench (9) between the hoodand cylinder only as shown.

    CAUTION!Do not insert the combination tool into the spark plughole, 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 thecombination 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 bevisible near the electrodes.

    CAUTION: Use only BOSCH WSR 6F spark plug,CHAMPION RCJ-6Y or NGK BPMR 7A.

    Replacing the suction head

    The felt filter (13) of the suction head can becomeclogged. It is recommended to replace the suctionhead once every three months in order to ensureunimpeded fuel flow to the carburetor.Unscrew the fuel tank cap (12) and pull the loss-prevention stopper out.Empty fuel tank.To remove the suction head for replacement, pull it outthrough the tank filler neck using a piece of wire bentat one end to form a hook.

    Caution: Do not allow fuel to come into contact withskin!

    Replacing the starter cable

    Unscrew four screws (14). Remove the fan housing(15). Remove all pieces of cable (16).

    Thread in a new cable (3,5 mm/ 3/16 dia. x 980 mm /40 long) as shown in the Figure (dont forget disc (17),and knot the ends as shown.Pull knot (18) into the cable pulley (19).Pull knot (20) into the cable grip (21).

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    64

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    Guide the cable into the recess (22) on the cable drumand use the cable to turn the drum two turns in thedirection shown by the arrow.Holding the cable drum in your left hand, straighten outthe twist in the cable with your right hand, pull thecable tight, and hold.Release the cable drum. The drums spring force willnow wind the cable around the drum.Repeat this procedure twice. The starter handle must

    stand out from the fan housing.

    NOTE: With the cable pulled all the way out, it muststill be possible to turn the pulley another 1/4 turnagainst the return spring.

    CAUTION! Injury hazard! When you pull out thestarter cable hold the starter handle firmly. It willwhip back if the cable pulley is released byaccident.When replaceing fan housing, it may be necessary topull the starter cable lightly so that the cable pulley

    catches.

    Replacing the return spring

    Remove the fan housing (see above underReplacing the starter cable).Takeoffcirclip(1)(circlippliers,seeAccessories).Remove the cable pulley (2).

    Unscrew screw (3) and carefully remove springhousing (4).Remove screws (3) and carefully remove the returnspring with housing (4).

    CAUTION: Danger of injury! If the spring is brokenit may pop out!

    NOTE: The old spring should be recycled.

    Replacement return springs are deliveredalready tensioned in the housing. Before

    installing, lightly grease the new spring with multi-purpose grease.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 as described above underReplacing the starter cable.When replaceing fan housing, it may be necessary topull the starter cable lightly so that the cable pulley

    catches.

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    66

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    Cutting attachment in central / side position

    NOTE: The Power Cut is delivered with the cuttingattachment mounted in the middle position (1). Forcutting 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, andafterwards return the cutting attachment to the middleposition. In this position the Power Cut has betterbalance, 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.Unscrew the nuts (5) and remove the cover (6).

    Turn the hood lock (8) clockwise as shown in theillustration (to the highest point of the slanted level).

    NOTE: The slip lock (Fig. 68/ 7) can only be overcomewhen the hood lock (8) is in the position shown.

    Turn the hood (9) as shown in the illustration.Turn the hood lock (8) to the starting postion and lockthe hood by turning it slightly (the hood lock will catchaudibly).Disengage the V-belt (10) and remove the cuttingattachment.

    Press the cutting attachment (11) in the side positiononto the drive arm attachment.Guide the V-belt (10) over the V-belt wheel (12).

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    68

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    70

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    Put the guard plate (13) on.Screw on nuts (14) and tighten by hand.To tighten the V-belt see Tightening the V-belt / Checking V-belt tension.Tighten the nuts (14) firmly with the combinationwrench.

    IMPORTANT:When you reposition the cutting attachment, the

    direction of rotation of the cutting wheel changes.Diamond cutting wheels must be installed in theproper direction of rotation!

    71

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    SPECIAL ACCESSORIES

    Cutting discsWACKER different cutting discs meet the highestdemands in working safety, ease of operation, andeconomical cutting performance. Can be used forcutting all materials except metal.The high durability of the diamond grains ensures lowwear and thereby a very long service life with almostno change in disc diameter over the lifetime of thedisc. This gives consistent cutting performance andthus high economy. The outstanding cutting qualitiesof the discs make cutting easier.The metal disc plates give highly concentric runningfor minimal vibration during use.The use of diamond cutting discs reduces cutting timesignificantly. This in turn leads to lower operatingcosts (fuel consumption, wear on parts, repairs, andlast but not least environmental damage).

    Water spraying systemThe water spraying system is also available on aseparate basis. This makes it possible to sprinklethe cutting disc during free-hand cutting by using ahose connected to a water main supply.

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    Instructions for periodic maintenance

    To ensure long life, prevent damage and ensure the full functioning of the safety features the following main-tenance must be performed regularly. Guarantee claims can be recognized only if this work is performed reg-ularly 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. Allsuch work must be carried out by a WACKER service station.

    General Entire Power Cut Clean exterior, check for damage. In case of damage, haverepaired by a qualified service centre immediately

    Cutting disc Inspect regularly for damage and wear.

    Protection hood Clean.

    Before eachstart

    Cutting disc Inspect for damage and make sure the cutting wheel is right forthe job.

    V-belt Check V-belt tension.

    Combination switch,Safety locking button,

    Throttle lever

    Functional check.

    Fuel tank plug Check for tightness.

    Every day Air filter Clean.

    Idle speed Check (cutting disc must not turn on idle).

    Every week Fan housing Clean to ensure proper air cooling.

    Starter cable Check for damage.

    V-belt Check V-belt tension, inspect for damage and wear.

    Paper cartridge Clean.Spark plug Check and replace if necessary.

    Muffler Check tightness of mounting.

    Every 3months

    Suction head Replace.

    Fuel tank Clean.

    Storage Entire Power Cut Clean exterior, check for damage. In case of damage, haverepaired by a qualified service centre immediately

    Cutting disc Remove and clean.

    Fuel tank Empty and clean.

    Carburetor Run empty.

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    Service, spare parts and guarantee

    Maintenance and repairThe maintenance and repair of modern cutoff saws and their safety-related components requires qualifiedtechnical training and a workshop equipped with special tools and testing devices.We therefore recommend that you consult a WACKER service centre for all work not described in this instruc-tion manual.The WACKER service station have all the necessary equipment and skilled and experienced personnel ,who can work out costeffective solutions and advise you in all matters.Please contact your nearest service station (list enclosed) or the general trading company or importer (see

    last page), who will gladly provide you with the address of your nearest WACKER service station.

    Spare partsReliable long-term operation, as well as the safety of your Power Cut, depend among other things on the qualityof the spare parts used. Use only original WACKER parts, marked

    Only original parts are from the same production line as the original unit and therefore ensure the highestpossible quality of materials, dimensions, functioning and safety.Original spare parts and accessories can be obtained from your local dealer. He will also have the spare partlists to determine the required spare part numbers, and will be constantly informed about the latest improve-ments and spare part innovations.Please bear in mind that if parts other than original WACKER spare parts are used, this will automatically in-validate the WACKER product guarantee.

    GuaranteeWACKER guarantees the highest quality and will therefore reimburse all costs for repair by replacement ofdamaged parts resulting from material or production faults occurring within the guarantee period after pur-chase. Please note that in somecountries particular guarantee conditions may exist. If you have any ques-tions, 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 WACKER 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 WACKER 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 guaranteemust be performed by a WACKER service station.

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    Troubleshooting

    Malfunction System Observation Cause

    Cutting discdoes not startturning

    Clutch Engine runs Damage to clutch

    Engine doesnot start or

    only withdifficulty

    Ignition system Ignition spark

    No ignition spark

    Malfunction in fuel supply system,compression system, mechanical

    malfunction.Switch on STOP, fault or short-circuit in thewiring, plug cap or spark plug defective.

    Fuel supply Fuel tank is filled Choke in wrong position, carburetordefective,suction head dirty, fuel line bentor interrupted.

    Compression system Inside Cylinder base packing ring defective, radialshaft packings defective, cylinder or pistonrings defective

    Outside Spark plug does not seal.

    Mechanicalmalfunction

    Starter does notengage

    Spring in starter broken, broken parts insidethe engine.

    Warm startdifficulties

    Carburetor Fuel tank is filledIgntion spark

    Wrong carburetor adjustment.

    Engine starts,but diesimmediately

    Fuel supply Fuel tank is filled Wrong idling adjustment, suction head orcarburetor dirty. Tank venting defective, fuelline interrupted, cable defective, Stop switchdefective. Starting valve dirty.

    Insufficientpower

    Serveral systemsmay be involved

    simultaneously

    Engine is idling Air filter dirty, wrong carburetor adjustment,muffler clogged, exhaust channel in

    cylinder clogged.

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    SK00607GB 49

    LABELS

    1

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    Ref. Part No. Qty. Part

    1 0125647 1 Decal - Sound power level

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    FBTS

    Guide trolley:

    The WACKER guide trolley makes it much easier to do straight cuts, while simultaneously enabling almost

    untiring working. It can be adjusted for the operators height, and can be operated with the cutting attachmentmounted in the middle or on the side.For easier refuelling when using the trolley, we recommend adding an angled tank filler neck.The guide trolley has been equipped with a water tank and a water spraying system; the water will bind thedust during the cutting process and will also help to cool the cutting disc.The guide trolley has been equipped with a water tank and a water spraying system; the water will bind thedust during the cutting process and will also help to cool the cutting disc. Notches have been added to the areaof the clamp lever, thus making it easier to adjust the cutting depth of the blade. One notch is equivalent to 10mm cutting depth.

    Safety precautions

    - The mounting brackets for the Power Saw must be cleaned before placing the BTS into the guide trolley.

    - The stop bolt must be correctly engaged to avoid a possible detaching of the Power Saw duringapplications.

    - Be careful to verify that both the clamp lever for the cutting depth setting and the star-shaped knob for thehandle height setting are tightly screwed down during cutting applications.

    - The guide trolley should be cleaned with water after each use to avoid possible malfunctions.

    - Park the equipment on an even, horizontal surface during work breaks, storage or transport. Also makesure that the equipment has been secured against tipping over or rolling away.

    - Push the throttle lever to the idle position (forwards) immediately after ending the cutting process.

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    SK00502GB 52

    CUTTING DISCSField of application

    STANDARD - PROFI Asphalt Concrete

    Material

    STANDARD

    PROFESSIONAL

    STANDARD

    PROFESSIONAL

    PROFESSIONAL

    Universal-Free-hand

    Old reinforced concrete D = > 8 mm w. all types ofaggregates

    - - o o o

    Concrete not or lightly reinforcedD = < 6 mm w. all types of aggregates

    - - + + o

    Asphalt + + - - -

    Asphalt on Concrete o + o o -Concrete roof tiles - - o o +

    Concrete tubes not or lightly reinforcedD = < 6 mm

    - - o + +

    Concrete blocks / curbstones - - + + +

    Concrete cast stones - - o o o

    Pumice stones - - + + +

    Floor topping finish or industrial floors o + - - -

    Fresh reinforced concrete D = < 6 mm w. all typesof aggregates

    o + - - -

    Fresh reinforced concrete D = < 8 mm w. all typesof aggregates

    - o - - -

    Fresh concrete w/o reinforcement w. all types ofaggregates

    + + - - -

    Porous concrete / Poroton o + o + +

    GFK-materials - - - - +

    Sand-lime bricks o + o + +

    Red clay bricks / honeycomb bricks o o + + +

    Sandstone + + o o -

    Fireclay bricks + + o o -

    Slate - - o + +

    Slag concrete - - o + o

    Glazed clay pipes - - - - +

    Exposed aggregate concrete - - o + o

    + optimally suited / o relatively suited / - not suited

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    SK00502GB 53

    HIGH SPEED Asphalt Concrete Granit e

    Material

    HIGH

    SPEED

    HIGH

    SPEED

    HIGH

    SPEED

    Abrasive concrete o o -

    Asphalt + - -

    Reinforced concrete or concrete with medium hardaggregates

    - + o

    Strongly reinforced concrete or concrete with veryhard aggregates such as granite, quarz or flint

    - o +

    Concrete / Concrete blocks - + -

    Pumice stones - o -

    Roof tiles - o o

    Floor topping finish / Wall plaster o o -

    Floor tiles, wall tiles, ceramics - - o

    Granite - - +

    Sand-lime bricks + - -

    Clinker - o -

    Double glazed clinker - - o

    Marble - - o

    Sandstone + - -

    Fireclay bricks - + -

    Clay bricks - o +

    Interlocking paving stones - o o

    Exposed aggregate concrete - + -

    Bricks / Poroton - + -

    + optimally suited / o relatively suited / - not suited

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    T00712GB 54

    CUTTING DISCS

    Available diamond cutting discs - 300 for BTS 930 / BTS 1030

    Available bakelite cutting discs - 300 forBTS 930 / BTS 1030

    Available diamond cutting discs - 350 for BTS 935 / BTS 1035

    Available bakelite-cutting discs - 350 for BTS 935 / BTS 1035

    Version Application boring Item no.

    Standard Concrete 20,0 0108223

    Standard Concrete 22,2 0108224

    Standard Asphalt 20,0 0108227

    Standard Asphalt 22,2 0108228

    Profi Concrete 20,0 0108231

    Profi Concrete 22,2 0108232

    Profi Asphalt 20,0 0108235

    Profi Asphalt 22,2 0108236

    Profi Universal-Free-hand 20,0 0108239

    Profi Universal-Free-hand 22,2 0108240

    High-Speed Concrete 20,0 0126081

    High-Speed Asphalt 20,0 0126078

    High-Speed Granite 20,0 0126084

    Version Application boring Item no.

    Bakelite Metal 20,0 0109427

    Bakelite General 20,0 0063889

    Version Application boring Item no.

    Standard Concrete 25,4 0108225

    Standard Asphalt 25,4 0108229

    Profi Concrete 25,4 0108233

    Profi Asphalt 25,4 0108237

    Profi Universal-Free-hand 25,4 0108241

    High-Speed Concrete 20,0 0126082

    High-Speed Concrete 25,4 0126083

    High-Speed Asphalt 20,0 0126079

    High-Speed Asphalt 25,4 0126080

    High-Speed Granite 25,4 0126085

    Version Application boring Item no.

    Bakelite Metal 25,4 0099743

    Bakelite General 25,4 0049457

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    C0001006GB

    EC - CONFORMITY-CERTIFICATE

    Wacker Construction Equipment AG , Preuenstrae 41, 80809 Mnchen

    hereby certify that the construction equipment specified hereunder:

    1. Category:Power cut

    2. Type:

    3. Equipment item number:

    4. absolute installed power:

    has been evaluated in conformity with Directive 2000/14/EC:

    and has been manufactured in accordance with the following directives:

    2000/14/EGEMV - Richtlinie 89/336/EG98/37/EG

    .......................................................

    Dr. SickBoard of Directors

    File certificate carefully

    BTS 930 / BTS 935 BTS 1030 / BTS 1035

    0008340 ...

    0008341 ...

    0008339 ...

    0007975 ...

    3,2 kW 4,2 kW

    Conformity assessmentprocedure

    Measuredsound power level

    Guaranteedsound power level

    Annex V 110 dB(A) 111 dB(A)

    http://../QUELLEN/Wacker-Werke.pdfhttp://../QUELLEN/Wacker-Werke.pdf
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