gasoline portable cut-off saw - wacker...
TRANSCRIPT
www.wackergroup.com
Operator´s Manual
Gasoline portable cut-off saw
BTS ...
0109969en 00110.2004
Important information
This machine has been provided with an EPA-certified engine.
Additional information can be found in the enginemanufacturer‘s notes.
Engine exhaust, some of its constitvents, and certain vehiclecomponents contain or emit chemicals known to the State of
California to cause cancer and birth defects or other reproduc-tive harm.
WARNING
Caution
This engine is an EPA engine.
Adjusting the engine speed will interfere with EPA certification andthe emissions.
Only authorized personnel can make adjustments to this engine.
Please contact you nearest engine dealer or your Wacker Dealer for moreinformation.
T00940GB 1
T00940GB 2
Warranty
for machines equipped with an EPA-certified engine (USA)
EMISSIONS COMPONENT DEFECT WARRANTY COVERAGEThe engine manufacturer warrant(“s”) to the initial retail purchaser and eachsubsequent owner, that this non-road engine (herein “engine“) has been designed,built, and equipped to conform at the time of initial sale to all applicable regulations ofthe U.S. Environmental Protection Agency (EPA), and that the engine is free of defectsin materials and workmanship which would cause this engine to fail to conform withEPA regulations during its warranty period.
For the components listed under PARTS COVERED, the service dealer authorized byWACKER will, at no cost to you, make the necessary diagnosis, repair, or replacementnecessary to ensure that the engine complies with applicable U.S. EPA regulations.
EMISSISON COMPONENT DEFECT WARRANTY PERIODThe warranty period for this engine begins on the date of sale to the initial purchaserand continues for a period of 2 years.
PARTS COVEREDListed below are the parts covered by the Emission Components Defect Warranty.Some of the parts listed below may require scheduled maintenance and are warrantedup to the first scheduled replacement point for that part.
Fuel Metering SystemCarburetor and internal parts
Fuel filter, if applicable
Throttle stopper, if applicable
Choke System, if applicable
Air Induction SystemAir cleaner plate, Air filter
Air cleaner case, Intake manifold
Ignition SystemSpark plugs
Flywheel Magneto
Ignition Coil
Miscellaneous Items Used in Above SystemsFuel hoses, clamps and sealing gaskets
OBTAINING WARRANTY SERVICETo obtain warranty service, take your engine to the nearest authorized WACKERservice dealer. Bring your sales receipts indicating date of purchase for this engine.The service dealer authorized by WACKER will perform the necessary repairs oradjustments within a reasonable amount of time and furnish you with a copy of therepair order. All parts and accessories replaced under this warranty become theproperty of WACKER.
T00965GB 3
WHAT IS NOT COVERED?
∗ Conditions resulting from tampering, misuse, improper adjustment(unless they were made by the service dealer authorized by WACKERduring a warranty repair), alteration, accident, failure to use therecommended fuel and oil, or not performing required maintenanceservices.
∗ The replacement parts used for required maintenance services.
∗ Consequential damages such as loss of time, inconvenience, loss ofuse of the engine or equipment, etc.
∗ Diagnosis and inspection charges that do not result in warranty-eligibleservice being performed.
∗ Any non-authorized replacement part, or malfunction of authorizedparts due to use of non-authorized parts.
OWNER’S WARRANTY RESPONSIBILITIES
As the engine owner, you are responsible for the performance of the requiredmaintenance listed in your owner’s manual. WACKER recommends that you retain allreceipts covering maintenance on your engine, but WACKER cannot deny warrantysolely for the lack of receipts or for your failure to ensure the performance of allscheduled maintenance. As the engine owner, you should however be aware thatWACKER may deny warranty coverage if your engine or a part has failed due to abuse,neglect, improper maintenance or unapproved modifications.
You are responsible for presenting your engine to the nearest service dealerauthorized by WACKER when a problem exists.
If you have any questions regarding your warranty rights and responsibilities, youshould contact the WACKER CORPORATION Product Support Department (U.S.A. 1-800-770-0957, Canada 1-877-977-0775) for the information.
THINGS YOU SHOULD KNOW ABOUT THE EMISSION CONTROL SYSTEMWARRANTY:
T00965GB 4
MAINTENANCE AND REPAIRS
You are responsible for the proper maintenance of the engine. You should keep all
receipts and maintenance records covering the performance of regular maintenance in
the event questions arise. These receipts and maintenance records should be
transferred to each subsequent owner of the engine. WACKER reserves the right to
deny warranty coverage if the engine has not been properly maintained. Warranty
claims will not be denied, however, solely because of the lack of required maintenance
or failure to keep maintenance records.
MAINTENANCE, REPLACEMENT OR REPAIR OF EMISSION CONTROL DEVICES
AND SYSTEMS MAY BE PERFORMED BY ANY REPAIR ESTABLISHMENT OR
INDIVIDUAL; HOWEVER, WARRANTY REPAIRS MUST BE PERFORMED BY A
SERVICE DEALER AUTHORIZED BY WACKER. THE USE OF PARTS THAT ARE
NOT EQUIVALENT IN PERFORMANCE AND DURABILITY TO AUTHORIZED
PARTS MAY IMPAIR THE EFFECTIVENESS OF THE EMISSION CONTROL
SYSTEM AND MAY HAVE A BEARING ON THE OUTCOME OF A WARRANTY
CLAIM.
If other than the parts authorized by WACKER are used for maintenance replacements
or for the repair of components affecting emission control, you should assure yourself
that such parts are warranted by their manufacturer to be equivalent to the parts
authorized by WACKER in their performance and durability.
HOW TO MAKE A CLAIM
All repair qualifying under this limited warranty must be performed by a service dealer
authorized by WACKER. In the event that any emission-related part is found to be
defective during the warranty period, you shall notify WACKER CORPORATION
Product Support Department (U.S.A. 1-800-770-0957, Canada 1-877-977-0775) and
you will be advised of the appropriate warranty service dealer or service providers
where the warranty repair can be performed.
T00965GB 5
T00965GB 6
Operating instructions
7
1. Foreword
For your own safety and protection from bodily injuries, carefully read,
understand and follow the safety instructions in this manual.
Please operate and maintain your Wacker machine in accordance with
the instructions in this manual. Your Wacker 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, including photocopying, 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 Wacker represents 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 improving our machines or their safety standards.
Table Of Contents
1. Foreword 7
2. Thank you for purchasing a WACKER product! 10
2.1 Packing ............................................................................................... 11
3. Delivery Inventory/Symbols 12
3.1 Delivery Inventory ............................................................................... 123.2 Symbols .............................................................................................. 12
4. Safety precautions 14
4.1 Use as designed ................................................................................. 144.2 General precautions ........................................................................... 144.3 Personal protective equipment ........................................................... 154.4 Fuels/Refuelling .................................................................................. 174.5 Putting into operation ......................................................................... 184.6 Cutting blades .................................................................................... 194.7 Kickback and lock-in ........................................................................... 224.8 Working behavior/Method of working ................................................. 234.9 Cutting metals .................................................................................... 244.10 Cutting masonry concrete, asbestos or asphalt ................................. 274.11 Transport and storage ........................................................................ 294.12 Maintenance ....................................................................................... 304.13 First aid ............................................................................................... 31
5. Technical data 32
6. Denomination of components 34
7. Putting into operation 36
7.1 Fitting cutting blades .......................................................................... 377.2 Tightening the V-belt/Checking V-belt tension ................................... 387.3 Fuels ................................................................................................... 397.4 Fuel storage ....................................................................................... 407.5 Refuelling ........................................................................................... 417.6 Starting the engine ............................................................................. 42
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Table Of Contents
7.7 Cold-starting ....................................................................................... 437.8 Warm-starting ..................................................................................... 447.9 Stopping the engine ........................................................................... 447.10 Adjusting the carburetor ..................................................................... 448. Maintenance 46
8.1 Changing the V-belt ............................................................................ 478.2 Cleaning the protective hood .............................................................. 488.3 Cleaning/changing the air filter ........................................................... 488.4 Prefilter and air cleaner insert ............................................................ 508.5 Replacing the spark plug .................................................................... 518.6 Checking the ignition spark ................................................................ 528.7 Replacing the suction head ................................................................ 538.8 Starter rope replacement .................................................................... 538.9 Replace the return spring ................................................................... 558.10 Cutting arm in inboard/outboard ......................................................... 568.11 Repositioning the cutting arm ............................................................. 578.12 Instructions for periodic maintenance ................................................. 598.13 Troubleshooting .................................................................................. 61
9. FBTS 62
9.1 Guide cart ........................................................................................... 629.2 Safety precautions .............................................................................. 63
10. Labels 64
EC - Confornity Certificate 65
DIN EN ISO 9001 CERTIFICATE 67
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Thank you for purchasing a WACKER product!
2. Thank you for purchasing a WACKER product!
Congratulations on choosing a WACKER Power Cut cutoff saw!WACKER Portable Cut-off Saws feature specially designed high-performance engines with outstanding power-to-weight ratios, forheavy-duty yet lightweight tools.
Other advantages of the WACKER Portable Cut-off Saws:
∗ Sturdy construction and high reliability.
∗ Maintenance-free electronic ignition, hermetically sealed to protectagainst dust and moisture.
∗ Vibration damping with 2-mass system for Less fatigue-oróne workingeven when guiding the Cut-off Saw by hand.
∗ Five-stage air-filter system for reliable working even under very dustyconditions.
∗ Two options for mounting the cutting arm: Either inboard, for goodbalance when guiding the unit manually, outboard, for flush cuts alongwalls or curbsides or horizontally directly above the ground.
∗ Extensive range of accessories available, such as resinoid-bonded ordiamond-tipped cutting blades as well as a guide trolley, watersprinkling system or angled fuel tank filler neck.
We want you to be satisfied with your WACKER product.
In order to guarantee the optimal function and performance of yourCut-off Saw and to ensure your personal safety we would request youto perform the following:
Read this instruction manual carefully before putting the Cut-offSaw into operation for the first time, and strictly observe thesafety regulations! Failure to observe these precautions can leadto severe injury or death
T00961GB 10
Thank you for purchasing a WACKER product!
2.1 Packing
Your WACKER Power Cut is packed in a cardboard box to preventshipping damage.
Cardboard is a basic raw material and is consequently reuseable orsuitable for recycling (waste paper recycling).
T00961GB 11
Delivery Inventory/Symbols
3. Delivery Inventory/Symbols
3.1 Delivery Inventory
In case one of the parts listed should not be included in the deliveryinventory, please consult your sales agent!
3.2 Symbols
You will notice the following symbols on the saw and in the operator´smanual:
Read operator´s manual andfollow the warning andsafety precautions!
Combination switch Start/Stop(I/O), choke
1. Cut-off saw3. Universal wrench 13/194. Allen key5. Screwdriver for carburetor adjusment6. Operator‘s manual (not shown)
T00961GB 12
Delivery Inventory/Symbols
Particular care and caution! Locked / Unlocked
Forbidden! Use eye protection!
Wear protective helmet, eyeand ear protection!
Engine - manual start
Wear protective gloves! Stop engine!
Wear respiratory protection! Warning! Kickback!
No smoking! Fuel/oil mixture
No open fire! First aid
Turning direction of cuttingblade
Recycling
Max. peripheral blade speed CE - marking
Cutting blade dimensions
T00961GB 13
Safety precautions
4. Safety precautions
4.1 Use as designed
Cut-off saw
The cut-off saw may only be used for the cutting/shortening ofappropriate materials outdoors with a cutting blade approved for themachine
Unauthorized working procedure
The cutting blades of the cut-off saw may not be used for grindingpurposes (removal of material with the side face of the cutting blade).This could cause the blade to fracture! Fitting the cut-off saw withcircular saw discs, knives, brushes etc. is absolutely forbidden.
Non-authorized operators:
Persons who are not familiar with the operator´s manual, children,teenagers, as well as persons under the influence of alcohol, drugs ormedication are not allowed to operate the machine.
4.2 General precautions
4.2.1 The operator MUST read this manual to ensure safe operation(even if you already have experience in using cut-off saws), It isimportant to be familiar with the operation of this particular cut-off saw.Users insufficiently informed will endanger themselves as well asothers due to improper handling.
4.2.2 Let only persons who have experience in using cut-off saws work withthis unit. When letting another person use the cut-off saw, this manualmust be provided along with it.
4.2.3 First-time operators should ask a specialist to instruct them in workingwith gasoline-powered cut-off saws.
4.2.4 Children and persons under 18 years of age must not be allowed touse this cut-off saw. Persons over the age of 16 years may, however,use the cut-off saw for the purpose of being trained as long as they areunder the supervision of a qualified trainer.
4.2.5 Working with the cut-off sawrequires high concentration.
4.2.6 Operate the Power Cut only if you are in good physical condition. If youare tired, your attention will be reduced. Be especially careful at theend of a working day. Perform all work calmly and carefully. The userhas to accept liability for others.
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SV00068GB 14
Safety precautions
4.2.7 Never work while under the influence of alcohol, drugs, medication orother substances which may impair vision, dexterity or judgement.
4.2.8 Ar fire extinguisher must be available in the immediate vicinity whenworking in easily inflammable vegetation or when it has not rained fora long time (danger of fire).
4.2.9 Asbestos and other materials that can release toxins may be cut onlywith the necessary safety precautions and after notification of theproper authorities and under their supervision or that of a personappointed by them.
4.3 Personal protective equipment
4.3.1 In order to avoid head, eye, hand or foot injuries as well as toprotect your hearing the following protective equipment must beused during operation of the cut-off saw:
4.3.2 The kind of clothing should be appropriate, i. e. it should be tight-fittingbut not be a hindrance. Clothing in which grains of material canaccumulate (trousers with cuffs, jackets and trousers with wide-openpockets, etc.) must not be worn, particularly when cutting metal.
4.3.3 Do not wear any jewellery or clothing that can get caught or distractfrom the operation of the cut-off saw.
4.3.4 It is necessary to wear a protective helmet whenever working with thecut-off saw. The protective helmet (A) is to be checked in regularintervals for damage and is to be replaced after 5 years at the latest.Use only approved protective helmets.
4.3.5 The helmet visor (B) protects the face from dust and material grains.In order to prevent injuries to eyes and face, always wear protectivegoggles (C) or visor when using the cut-off saw.
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3
SV00068GB 15
Safety precautions
4.3.6 To prevent hearing damage, always wear suitable personal hearingprotection . (ear muffs (D), ear plugs, etc.). Octave brand analysis
upon request.
4.3.7 When dry-cutting dust-producing materials such as stone or concrete,
always wear approved respiratory protection (E).
4.3.8 Work gloves (F) of tough leather are part of the required work kit of
the cut-off saw and must always be worn when working with the cut-off
saw.
4.3.9 Always wear safety shoes or boots (G) with steel toes, non-skid
soles, and leg protectors when working with the cut-off saw. Safety
shoes equipped with a protective layer provide protection against cuts
and ensure a secure footing.
4.3.10 Always wear a work suit (H) of sturdy material.
4
5
SV00068GB 16
Safety precautions
4.4 Fuels/Refuelling
4.4.1 Go to a safe, level place before refuelling. Never refuel while onscaffolding, on heaps of material, or in similar places!
4.4.2 Switch off the engine before refuelling the Power Cut.
4.4.3 Do not smoke or work near open fires (6).
4.4.4 Let the engine cool down before refuelling.
4.4.5 Fuels can contain substances similar to solvents. Eyes and skin shouldnot come in contact with mineral oil products. Always wear protectivegloves when refuelling (not the regular work gloves!). Frequently cleanand change protective clothes. Do not breathe in fuel vapors.Inhalation of fuel vapours can be hazardous to your health.
4.4.6 Do not spill fuel. If a spill occurs, clean off the cutt-off saw immediately.Fuel should not come in contact with clothes. If your clothes havecome in contact with fuel, change them at once.
4.4.7 Ensure that no fuel runs into the soil (environmental protection). Usean appropriate base.
4.4.8 Refuelling is not allowed in closed spaces. Fuel vapors will accumulatenear the floor (explosion hazard).
4.4.9 Make sure to firmly tighten the screw plug of the fuel tank.
4.4.10 Before starting the engine, move to a location at least 3 meters (10feet) from where you fuelled the cut-off saw (7), but not within theextended swing range of the cutting blades (direction of sparks).
4.4.11 Fuel cannot be stored for an unlimited period of time. Buy only as muchas will be consumed in the near future.
4.4.12 When making up the gasoline/oil mixture, always put the oil in themixing container first, and then the gasoline.
6
3 meters(10 feet)
7
SV00068GB 17
Safety precautions
4.4.13 Use only approved and marked containers for the transport andstorage of fuel.
Keep fuel away from children!
4.5 Putting into operation
4.5.1 Do not work on your own. There must be someone around in caseof an emergency (within shouting distance).
4.5.2 Observe all anti-noise regulations when working in residential areas.
4.5.3 Never use the Power Cut near inflammable materials or explosivegases! The Power Cut can create sparks leading to fire orexplosion!
4.5.4 Make sure that all persons within 30 meters (100 feet), such as otherworkers, are wearing protective gear (see „Protective Equipment“) (8).Children and other unauthorized persons must remain more than 30meters (100 feet) away from the working area. Keep an eye out foranimals as well (9).
4.5.5 Before starting work the cut-off saw must be checked for perfectfunction and operating safety in aaccordance with regulations.
8= Wear protective equipment
30 m(100 feet)
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SV00068GB 18
Safety precautions
In particular, make sure that the cutting blade is in good conditions(replace immediately if torn, damaged or bent), the cutting blade isproperly mounted, the protective hood is locked in place, the V-belt hasthe proper tension, the throttle moves easily and the half-throttle lockbutton functions properly, the handles are clean and dry, and thecombination switch functions properly.4.5.6 Start the cut-off saw only after complete assembly and inspection.Never use the cutt-off saw when it is not completely assembled.
4.6 Cutting blades
4.6.1 The protective hood must always be on! Change cutting bladesonly with the engine off!
Always make sure to observe the „direction of rotation“ markings.When using diamond cutting blades.
4.6.2 Cutting blades have been designed exclusively for radial loads. Neveruse the side face of the cutting blade for grinding purposes, as there isdanger of blade fracture.
ATTENTION!
Never change direction (turning radius less than 5 meters (16feet), exert lateral (sideways) pressure, or cant the cut-off sawduring cutting applications (11)!
4.6.3 Use a cutting blade only for cutting the materials it is intended for. Theproper type of blade must be selected for either metals or concrete.
10
min. 5 m(16 feet)
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SV00068GB 19
Safety precautions
4.6.4 The arbour hole (bore) of the cutting blade must fit the shaft exactly. Ifthe arbour hole is larger than the shaft diameter, a spacer ring must beused.
4.6.5 Free-hand cutting blades with a blade diameter of 355 mm (14“) mustbe approved for speeds of up to 4370 1/min (rpm) or80 m/s (260 ft./sec); blades with a blade diameter of 300 mm (12“) must be approvedfor speeds of up 5100 1/min (rpm) or 80 m/s (260 ft./sec).
4.6.6 The cutting blade must be free of defects (12). Make sure by soundtesting with a piece of wood. Do not use defective cutting discs.
Always tighten the cutting blade‘s mounting bolt to a torque of 30Nm (22.2ft.lbs.). Otherwise, the cutting blade could warp.
4.6.7 Make sure you have a steady footing before starting the cutting blade.
4.6.8 Put the cut-off saw into operation only as described in this manual (13).Always place your left foot in the rear handle and grasp the otherhandle firmly (with thumb and fingers). Other starting methods are notallowed.
4.6.9 When starting the cut-off saw it must be well supported and securelyheld. The cutting blade must not be touching anything.
4.6.10 If the cutting blade is new, test it by running it at least 60 seconds attop speed. When doing this, make sure that no persons or body partsare in the extended swing range of the cutting blade, in case it isdefective and flies apart.
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13
SV00068GB 20
Safety precautions
4.6.11 When working with the cut-off saw always hold it with bothhands. Take the back handle with the right hand and the tubularhandle with the left hand. Hold the handles tightly with your thumbsfacing your fingers.
4.6.12 ATTENTION: When you release the throttle lever the cutting bladewill keep spinning for a short period of time (free-wheeling effect.).
4.6.13 Always make sure that you have a safe footing.
4.6.14 Hold the cut-off saw such that you will not breathe in the exhaust gas.Do not work in closed rooms or in deep holes or ditches (danger ofpoisoning by fumes).
4.6.15 Immediately switch off the cut-off saw if you observe anychanges in its operating behavior.
4.6.16 Stop the engine (14) before checking the V-belt‘s tension orretightening the V-belt, before replacing a cutting blade, beforechanging the cutting arm (inboard to outboard or vice versa) andbefore eliminating malfunctions.
4.6.17 Turn off the engine immediately and check the cutting blade if you hearor feel any change in cutting behaviour.
4.6.18 Turn off the cut-off saw when taking a break or stopping work (14).Place the unit in such a way that the cutting blade is not touchinganything and cannot endanger anyone.
4.6.19 Do not put the overheated cut-off saw in dry grass or on anyinflammable objects. The muffler is very hot (danger of fire).
4.6.20 ATTENTION: After wet cutting, first turn off the water feed and then letthe blade run at least another 30 seconds, to fling off the remainingwater and prevent corrosion.
*Maintenance*Refuelling*Replacing the cutting blade*Repositioning the cutting arm*Work pause*Transport*Out of operation14
SV00068GB 21
Safety precautions
4.7 Kickback and lock-in
4.7.1 There is a danger of kickback and lock-in. When working with the cut-off saw.
4.7.2 Kickback occurs when the top of the cutting blade is used for cutting(15).
4.7.3 This causes the cut-off saw to be thrown back toward the user withgreat force and out of control. Risk of injury!
To prevent kickback, observe the following:
4.7.4 Never cut with the section of the cutting blade shown in figure 15.
Be especially careful when reinserting the disc into cuts that havealready been started!
4.7.5 Lock-in occurs when the cut narrows (crack, or workpiece understress).
4.7.6 This causes the cut-off saw to suddenly jump forward, out of controland with great force. Risk of injury!
To prevent lock-in, observe the following:
4.7.7 When reinserting the disc into previous cuts, have the cut-off sawrunning at top speed. Always cut at top speed.
4.7.8 Always support the workpiece so that the cut is under pulling tension(16), so that the cut does not press together and jam the cutting bladeas it proceeds through the material.
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16
SV00068GB 22
Safety precautions
4.7.9 When starting a cut, apply the cutting blade to the workpiece with care.Do not just shove it into the material.
4.7.10 Never cut more than one piece at a time! When cutting, make sure thatno other workpiece is touched.
4.8 Working behavior/Method of working
4.8.1 Before starting work, check the work area for any hazards (electricalwires, inflammable substances). Clearly mark the work area (forexample with warning signs or by cordoning off the area).
4.8.2 When working with the cut-off saw hold it firmly by the front and rearhandles. Never leave the cut-off saw unattended!
4.8.3 Whenever possible run the cut-off saw at the rated arbour speed (see„Technical Data“).
4.8.4 Only use the cut-off saw during good light and visibility periods. Beaware of slippery or wet areas, and of ice and snow (risk of slipping).
4.8.5 Never work on unstable surfaces. Make sure that there are noobstacles in the working area, risk of stumbling. Always ensure thatyou have a safe footing.
4.8.6 Never cut above your shoulder height (17).
4.8.7 Never stand on a ladder to cut (17).
4.8.8 Never use the cut-off saw while standing on scaffolding.
4.8.9 Do not lean over too far when working. When putting down and pickingup the cut-off saw, do not bend over from the waist, but instead bendin the knees. Save your back!
17
SV00068GB 23
Safety precautions
4.8.10 Guide the cut-off saw in such a way that no part of your body is withinthe extended swing range of the blade (18).
4.8.11 Use cutting blades only for the materials for which they are designed!
4.8.12 Do not use the cut-off saw to lift up and shovel away pieces of materialand other objects.
Important injury hazard! Before cutting, remove all foreign objects,such as rocks, gravel, nails etc. from the cutting area. Otherwise, suchobjects can be flung away by the blade with great speed.
4.8.13 When cutting workpieces down to length use a firm support. Ifnecessary, secure the workpiece from slipping, but do not steady itwith your foot or allow another person to hold it.
4.8.14 When cutting round items, always secure them against rotation.
4.8.15 When guiding the cut-off saw by hand, use the outboard position of thecutter arm only when actually necessary. Otherwise, always use theinboard position. This gives the unit a better balance, for reducedoperator fatigue.
4.9 Cutting metals
ATTENTION!
Always wear approved respiratory protection!
Materials that can release toxic substances may be cut only afternotifying the proper authorities and under their supervision orthat of a person appointed by them.
18
SV00068GB 24
Safety precautions
CAUTION!
The rapid rotation of the cutting blade heats metal and melts it atthe point of contact. Swing the guard as far down as possiblebehind the cut (19) in order to direct the stream of sparks forward,away from the operator (fire hazard).
4.9.1 Determine the direction of cutting, mark the cut and apply the blade tothe material at moderate speed, to cut a guide groove before going totop speed and applying more pressure to the cut-off saw.
4.9.2 Keep the blade straight and vertical. Do not tip it, as this can break it.
4.9.3 The best way to get a good, clean cut is to pull or move the cut-off sawback and forth. Do not simply press the blade into the material.
4.9.4 Thick round stock is best cut in stages (20).
4.9.5 Thin tubing and pipes can be cut with a simple downward cut.
4.9.6 Treat large-diameter pipes as round stock. To prevent tipping and forbetter control, do not let the blade sink too deeply into the material.Instead, always cut shallow around the whole piece.
4.9.7 Worn blades have a smaller diameter than new blades, so that at thesame engine speed they have a lower effective circumferential speedand therefore do not cut as well.
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20
SV00068GB 25
Safety precautions
4.9.8 Cut I-beams and L-bars in steps; see Figure 21.
4.9.9 Cut bands and plates like pipes: along the wide side with a long cut.
4.9.10 When cutting material under stress (supported material or material instructures), always make a notch in the thrust (pressure) side, andthen cut from the tension side, so that the blade does not lock in (22).Secure cutoff material from falling!
ATTENTION!
If there is a chance that the material is under stress, be preparedfor it to kick back. Make sure you can get out of the way if youhave to!
Be particularly careful in scrap-metal yards, junkyards, ataccident sites, and with haphazard piles of material. Precariouslybalanced pieces or pieces under stress can act in unpredictableways, and may slide, jump out, or burst. Secure cutoff materialfrom falling (22)! Always exercise extreme caution and use onlyequipment that is in perfect working order.
Observe the accident-prevention rules and regulations of youremployer and/or insurance organization.
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22
SV00068GB 26
Safety precautions
4.10 Cutting masonry concrete, asbestos or asphalt
ATTENTION!
Always wear approved respiratory protection!
Asbestos and other materials that can release toxic substancesmay be cut only after notifying the proper authorities and undertheir supervision or that of a person appointed by them. Whencutting prestressed and reinforced concrete piles, follow theinstructions and standards of the responsible authorities or thebuilder of the structural member. Reinforcement rods must be cutin the prescribed sequence and in accordance with applicablesafety regulations.
NOTE!
Mortar, stone, and concrete develop large quantities of dust duringcutting. To increase the lifetime of the cutting blade (by cooling), toimprove visibility, and to avoid excessive dust creation, we stronglyrecommend wet cutting instead of dry cutting.
In wet cutting, the blade is watered at an equal rate on both sides by atrickle of water. WACKER offers the right accessories for all wet cuttingapplications (see also “SPECIAL ACCESSORIES“).
4.10.1 Remove foreign objects such as sand, stones and nails found withinthe working area.
Caution: Watch out for electric wires and cables!
The rapid rotation of the cutting blade at the point of contactthrows fragments out of the cut groove at high speed. For yoursafety, swing the protective hood down as far as possible behindthe cut (23), so that material fragments are thrown forward, awayfrom the operator.
4.10.2 Mark the cut, and then make a groove about 5 mm deep (just under0,2“) along the entire length of the planned cut. This groove will thenguide the cut-off saw accurately guring the actual cutoff.
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SV00068GB 27
Safety precautions
NOTE:
For long, straight cuts we recommend using a guide cart (24, see also
“SPECIAL ACCESSORIES“). This makes it much easier to guide the
unit in a straight line with less effort.
4.10.3 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 flat surface
(25).
ATTENTION!
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 blade does not get jammed by the cut-off piece,
and that no persons can be injured by falling pieces.
24
25
SV00068GB 28
Safety precautions
4.11 Transport and storage
4.11.1 Always turn off the cut-off saw when transporting it or moving itfrom place to place on a site (26).
4.11.2 Never carry or move the unit with the engine running or the bladeturning!
4.11.3 Carry the unit only by the tubular (middle) handle with the cutting bladepointing behind you (26). Avoid touching the exhaust muffler (burnhazard!).
4.11.4 When moving the cut-off saw over longer distances, use awheelbarrow or wagon.
4.11.5 When transporting the cut-off saw in a vehicle, make sure it is securelypositioned in such a way that no fuel can leak out. Always remove thecutting blade before transporting the unit in a vehicle.
4.11.6 The cut-off saw should be stored safely in a dry place. It must not beleft outdoors! Always dismount the cutting blade before storage. Keepthe cut-off saw away from children.
4.11.7 Before long-term storage and before shipping the cut-off saw ,follow the instructions in the chapter on “Periodic care andmaintenance“. ALWAYS empty the fuel tank and run thecarburetor dry.
4.11.8 When putting cutting bladess in storage, be careful to:
4.11.9 Clean and dry them well.
4.11.10 Store them lying down flat.
4.11.11 Avoid dampness, freezing temperatures, direct sunshine, hightemperatures and temperature fluctuations, as these can causebreakage and splintering.
4.11.12 Always check new cutting blades or blades that have been instorage to make sure that they are free of defects.
26
SV00068GB 29
Safety precautions
4.12 Maintenance
4.12.1 Switch off the cut-off saw (27) and pull out the plug cap Beforeperforming maintenance work.
4.12.2 Always check the cut-off saw before using it to make sure that it is ingood working order. In particular, make sure that the cutting blade isproperly mounted. Make sure that the cutting blade is undamaged andsuitable for the job it will be used for.
4.12.3 Operate the cut-off saw only at a low noise and emission level. For thisensure the carburetor is adjusted correctly.
4.12.4 Clean the cut-off saw regularly.
4.12.5 Check the fuel tank cap regularly for good sealing.
Ovserve the accident prevention instructions issued by tradeassociations and insurance companies. NEVER make anymodifications to the cut-off saw! You will only be putting yourown safety at risk!
Perform only the maintenance and repair works described in theoperator‘s manual. All other work must be carried out by WACKERService.
Use only original WACKER spares and accessories.
The use of non-WACKER spares, accessories, or cutting bladesincreases the risk of accident. We cannot accept any responsibility foraccidents or damage occurring in association with the use ofaccesories other than original WACKER.
27
28 SERVICE
SV00068GB 30
Safety precautions
4.13 First aid
For the event of a possible accident, please make sure that a first aid
kit is always immediately available close by. Immediately replace any
items used from the first 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 circulatory problems 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 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!
29
SV00068GB 31
Technical data
5. Technical data
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 user‘s ear).5) With 2-cycle engine oil according to API TC, JASO FC. or ISO L-EGD
BTS 930L3 BTS 935L3
Item no. 0008987 ... 0008988 ...
Displacement cm3 (cu in) 64 (3,9)
Bore mm (in) 47 (1,85)
Stroke mm (in) 37 (1,46)
Max. power kW (hp) 3,3 (4,5)
Max. torque Nm (ft.lbs.) 4,0 (3,0)
Idling speed 1/min [rpm] 2.500
Clutch engagement speed 1/min [rpm] 3.800
Engine speed limitation 1/min [rpm] 9.350
shaft speed 1/min [rpm] 4.300
Sound pressure level LpA eq per EN 1454 1) 4) dB (A) 97
Sound power level LWA 109 db(A)
Vibration acceleration ah,w per EN 1454- Tubular handle (idle/rated spindle speed)- Rear handle (idle/rated spindle speed) m/s2
6 / 58 / 6
Carburetor (diaphragm carburetor) Typ (Type) TILLOTSON HS-273 A
Ignition system (with speed limitation) Typ (Type) electronic
Spark plug Typ (Type) NGK BPMR 7A / BOSCH WSR 6F /CHAMPION RCJ 6Y
Electrode gap mm (in) 0,5 (.020)
Fuel consumption at max. load per ISO 8893 l/h(US qt/h)
2,1(2,2)
Specific consumption at max. load perISO 8893
g/kWh(oz./hph)
500(13)
Fuel tank capacity l (US qt) 1,1 (1,2)
Mixture ratio fuel/two-stroke oil 5) 50:1
Cutting blade fer max. 80 m/s (260 ft/sec.) 2) mm (in) 300 / 20,0 / 53)
(12/0,787/0,2)350 / 25,4 / 53)
(14/1/0,2)
Arbor diameter mm (in) 20,0 (0,787“) 25,4 (1“)
Weight cut-off saw (empty tank, no blade) kg(lb)
10,0(22)
10,2(22,5)
TD00676GB 32
Technical data
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 user‘s ear).
5) With 2-cycle engine oil according to API TC, JASO FC. or ISO L-EGD
BTS 1030L3 BTS 1035L3
Item no. 0008989 ... 0008990 ...
Displacement cm3 (cu in) 73 (4,5)
Bore mm (in) 50 (1,97)
Stroke mm (in) 37 (1,46)
Max. power kW (hp) 4,2 (5,7)
Max. torque Nm (ft.lbs.) 5,0 (3,7)
Idling speed 1/min [rpm] 2.500
Clutch engagement speed 1/min [rpm] 3.800
Engine speed limitation 1/min [rpm] 9.350
spindle speed 1/min [rpm] 4.300
Sound pressure level LpA eq per EN 1454 1)
4)
dB (A) 99
Sound power level LWA 110 db(A)
Vibration acceleration ah,w per EN 1454- Tubular handle (idle/rated spindle
speed)- Rear handle (idle/rated spindle speed)
m/s27 / 58 / 7
Carburetor (diaphragm carburetor) Typ (Type) TILLOTSON HS-273 A
Ignition system (with speed limitation) Typ (Type) electronic
Spark plug Typ (Type) NGK BPMR 7A / BOSCH WSR 6F /CHAMPION RCJ 6Y
Electrode gap mm (in) 0,5 (.020)
Fuel consumption at max. load perISO 8893
l/h (US qt/h) 2,7 (2,9)
Specific consumption at max. load perISO 8893
g/kWh(oz./hph)
500(13)
Fuel tank capacity l (US qt) 1,1 (1,21)
Mixture ratio fuel/two-stroke oil 5) 50:1
Cutting blade fer max. 80 m/s (260 ft/sec.)2)
mm (in) 300/20,0/53)
(12/0,787/0,2)350/25,4/53)
(14/1/0,2)
Arbor diameter mm (in) 20,0 (0,787“) 25,4 (1“)
Weight cut-off saw (empty tank, no blade) kg ( lb) 10,0 (22) 10,2 (22,5)
TD00676GB 33
Denomination of components
6. Denomination of components
Identification plateIndicate when ordering spare parts!
T00962GB 34
Denomination of components
1 Handle2 Filter cover for air filter and spark plug cap
3 Cover lock
4 Tubular handle
5 Muffler
6 Protective hood
7 Protective hood handle
8 V-belt tension adjusting screw
9 Retaining nuts
10 Base
11 Carburetor adjustment opening
12 Identification plate
13 Fuel tank with handle
14 Starter grip
15 Combination switch Start/Stop (I/O), choke
16 Stop knob for halfway throttle
17 Safety locking button
18 Throttle lever
19 Fuel tank plug
20 Fan housing with starting assembly
21 Cutting blade
22 Cutting blade fastening bolt
23 Spring washer
24 Lock bore for V-belt pulley
T00962GB 35
Putting into operation
7. Putting into operation
ATTENTION:
Always turn off the engine and pull off the spark plugcap before doing any work on the cut-off saw! Alwayswear protective gloves!
ATTENTIONE:
Start the cut-off saw only after complete assembly andinspection.
For the the following work, use the assembly tools included withdelivery:
Place the cut-off saw on a stable surface and carry out the followingassembly steps:
30
1.13/19 AF universal wrench2. Allen key3. Carburetor adjustment
screwdriver
1 2 331
T00962GB 36
Putting into operation
7.1 Fitting cutting blades
Inspect the disc for damage, see SAFETYINSTRUCTIONS. Unscrew screw (9) and remove the springwasher (8). Place the cutting disc (5) on the arbour (7).
NOTE: The arbor hole of the cutting disk must fit the shaft precisely.Use an adapter ring to compensate for a larger arbor hole.
ATTENTION:
When using a diamond cutting disc be sure to mount it sothat it rotates in the proper direction!
Place the spring washer (8) on the arbour and insert the screw (32/9)and tighten by hand.
Slowly turn the cutting disc until the stop hole of the V-belt wheel isvisible in the cutting arm hole (10). Insert the Allen key (2) as far as itwill go. The shaft is now blocked.
Tighten the screw with the combination wrench (1).
NOTE: Tighten the screw firmly 30 + 2 Nm (22 + 1,5 ft.lbs.), asotherwise the cutting wheel could slip during cutting applications.
32
Model
33
T00962GB 37
Putting into operation
7.2 Tightening the V-belt/Checking V-belt tension
ATTENTION:
Exact V-belt tension is essential for maximum cuttingperformance with minimum fuel consumption. Improper V-belttension will result in premature wear to the V-belt and V-beltpulley or damage to the clutch bearing. Retighten new V-belt afterfirst running hour!
NOTE: The two fastening nuts (11) must be loosened beforetightening 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 cut-off sawThe belt tension is correctly adjusted when the nut (13) is centred onthe mark (14).
ATTENTION: After tightening/inspection, make certain totighten the fastening nuts (11) 30 + 2 Nm (22 + 1,5 ft.lbs.).
34
35
T00962GB 38
Putting into operation
7.3 Fuels
ATTENTION:
The cut-off saw uses mineral-oil products (gasoline and oil).
Be especially careful when handling gasoline.
Do not smoke. Do not allow gasoline to come near flames, sparksor fire (explosion hazard).
Fuel mixture
The cut-off saw is powered by a high-performance two-cycle engine. Itruns on a mixture of gasoline and two-cycle 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 usefuel with a higher octane value. This will not affect the engine.
In order to obtain an optimum engine output and to protect yourhealth and the environment use unleaded fuel only.
36
Gasoline 50:1
+
1000 cm3 (1 liter) 20 cm3
5000 cm3 (5 liter) 100 cm3
10000 cm3 (10 liter) 200 cm3
Us-gal.1,0 2,5 fl.oz.Us-gal. 2,5 6,4 fl.oz.Us-gal. 5,0 12,8 fl.oz.
The correct mixture ratio:50:1 50 parts gasoline to 1 part oil.
T00962GB 39
Putting into operation
The 2-cycle engine oil must comply with API TC, JASO FC or ISO L-EGD specifications.NOTE: For preparing the fuel-oil mixture first mix the entire oil quantitywith half of the fuel required, then add the remaining fuel. Shake thefinished mixture thoroughly before pouring it into the saw‘s tank.
ATTENTION: Open the tank cap carefully, as pressure might havebuilt up inside!
It is not wise to add more engine oil than specified to ensure safeoperation. This will only result in a higher production ofcombustion residues which will pollute the environment and clogthe exhaust channel in the cylinder as well as the muffler. Inaddition, fuel consumption will rise and performance willdecrease.
7.4 Fuel storage
Fuels have only a limited shelf-life. Buy only as much as you will usein 4 weeks.
Only store fuel in approved and marked containers.
AVOID SKIN AND EYE CONTACT
Mineral oil products degrease your skin. If your skin comes in contactwith these substances repeatedly and for an extended period of time,it will dry out. Various skin diseases may result. In addition, allergicreactions 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!
37
T00962GB 40
Putting into operation
7.5 Refuelling
ATTENCION: FOLLOW THE SAFETY PRECAUTIONS 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 neck to keep dirt
from getting in the tank.
Place the unit on its side on an even surface.
Unscrew the tank cap and fill tank with fuel mixture. Take care to avoid
spilling.
Tightly screw on the plug.
Clean tank cap and surrounding area after refuelling. Never start
or operate the cut-off saw in the same place as it was fuelled!
Fuel mixture38
T00962GB 41
Putting into operation
7.6 Starting the engine
ATTENCION:
Observe the SAFETY INSTRUCTIONS under all circumstances!
Start the cut-off saw only after complete assembly andinspection!
Move at least 3 m (10feet) away from the place where you fuelledthe cut-off saw.
Make sure you have a good footing, and place the cut-off saw onthe ground in such a way that the cutting disc is not touchinganything.
Turn protective hood (3) to optimum position according to cuttingapplication (see drawing).
Grab handle (2) and move protective hood (3) to any position desiredbetween stops in either direction..
39
if
necessary
40
3 meters(10 feet)
41
T00962GB 42
Putting into operation
ATTENCION:By all means make sure that outer edge of stop plate (4) is parallel tothe edge of the protective hood (see arrows).
Visit a specialized work shop if this should not be the case.
7.7 Cold-starting
Move the combination switch (5) upwards (choke position).
Grasp handle (hand pressure actuates the grip throttle lever 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 lockwill hold the throttle at half-throttle position).
Grasp the tubular handle firmly with one hand and press the cut-offsaw firmly against the ground:
Place the tip of your left foot in the rear handle.
Slowly pull out the starter rope until you notice resistance (the piston ispositioned before the top dead centre).
Now pull the starter rope with a fast and forceful movement until youhear the first ignition.
42
43
T00962GB 43
Putting into operation
ATTENCION: Do not pull out the starter rope more than approx. 50 cm(20 feet), and lead it back by hand.Move the combination switch (42/5) to the position “I“.
Keep pulling the starter rope until the engine starts running.
As soon as the engine is running, press the throttle (42/8) to releasethe half-throttle lock (42/6), allowing the engine to idle.
7.8 Warm-starting
As described under „Cold starting“, except without moving thecombination switch (42/5) to the choke position.
7.9 Stopping the engine
Push the combination switch (9) down to position
7.10 Adjusting the carburetor
NOTE: The cut-off saw has been equipped with anelectronic ignition to limit the speed. The carburetoralso has a fixed jet which cannot be adjusted.
At the factory the idling speed has been set to approx.2.500 1/min, but the running-in process of a new engine mayrequire slight readjustment of the idling speed.
44
45
Set the idling speed with a screwdriver (widthof blade: 4 mm) (0,16“).
The screwdriver shown has a molded-on lug toassist in adjustment.
T00962GB 44
Putting into operation
The following steps must be carried out: For the correctadjustment of the idling speed
Start the engine and run it until it is warm (about 3 - 5 minutes).
Carry out carburetor adjustment with the scope of delivery.
Readjusting the idle speed
Proceed as follows if the cutting blade is turning while the engine isidling: turn the throttle valve‘s stop screws (2) outwards until the cuttingblade stops moving. Turn the screw back in if the engine stops runningwhile idling.
Stop engine
46
47
T00962GB 45
Maintenance
8. Maintenance
ATTENCION
Before doing any work on the cut-off saw turn off the engine,remove the cutting blade, pull the plug cap off the spark plug andwear protective gloves!
ATTENCION
Start the cut-off saw only after complete assembly andinspection.
NOTE
Because many of the parts and assemblies not mentioned in thisInstruction Manual are vital to the safety of the unit, and becauseall parts are subject to a certain amount of wear and tear, it isimportant for your own safety that you have the unit checked andmaintained regularly by a WACKER service station.
ATTENCION:
If the cutting blade should have broken during a cuttingapplication, take the cut-off saw to a WACKER servicestation for its repair before using the machine again!
48
SERVICE49
T00963GB 46
Maintenance
8.1 Changing the V-belt
Loosen nuts (3).
Loosen the tightening screw (1) (counter-clockwise) until the end of thescrew (2) is visible in the gap.
Unscrew the nuts (3) and remove the cover (4).
Remove the screws (5) and (7) and remove the side cover (6).
NOTE:
Screw (5) is longer than screws (7). Make sure to putthem back in the right places during reassembly!
Loosen the screws (8) and remove the crankcase cover (9).
Remove the old belt (10) or belt pieces. Clean out the inside of thecutting arm with a brush.
Put in a new V-belt.
NOTE:
Reassemble the crankcase housing cover (9), side cover (50/6) andcover (50/4) in the reverse order.
To tighten the V-belt see “Tightening the V-belt / Checking V-belttension“.
50
51
T00963GB 47
Maintenance
8.2 Cleaning the protective hood
Over time, the inside of the protective hood can become caked withmaterial residue (especially from wet cutting), which if allowed toaccumulate can hinder the free rotation of the cutting blade. For thisreason the hood must be cleaned out from tim to time.
Take off the cutting blade with spring washer and remove theaccumulated material from inside the hood with a strip of wood orsimilar implement.
Clean the shaft and all disassembled parts with a cloth.
8.3 Cleaning/changing the air filter
Turn the cover lock (11) to the „Unlocked “ position and carefullyremover the filter cover (12).
Two sealing rings (54/15) are located between the filter cover (12) andthe covering cap (54/14).
52
NOTE: See “Fitting cutting blades“ forassembly of blades.
53
T00963GB 48
Maintenance
Loosen the screws (13) and remove the covering cap (14).
Clean the sealing rings (15) with a small brush and check them fordamage.
Remove prefilter (17) from the filter cover.
Pull air filter insert (18) from the hood.
Remove the inner filter (16) from the intake opening.
Note:
Do not allow dirt to get into the carburetor!
Set the combination switch to “Choke“ or cover the carburetor with aclean cloth.
54
55
T00963GB 49
Maintenance
8.4 Prefilter and air cleaner insert
Service-notes:
Clean prefilter (1/7) daily ore more often if in the pesence of a lot ofdust. Replace latest after 20 hours running time!
Clean air cleaner insert (2/8) once every week, replace every 100hours running time! This means that with proper maintenance the aircleaner insert needs be replaced after the prefilter has been replacedfive times.
Cleaning prefilter and air cleaner insert
Knock the contaminated prefilter (1/7) against a clean surface or washin a luke warm soap sud of commercially available dish washerdetergent. Do not clean with fuel. Let prefilter dry thoroughly . Theair cleaner insert (2/8) filters the intake air throughtan extremely finepaper filter lamellar system and should not be washed under anycircumstances. Open up the lamellas of the air cleaner insert slightlyand carefully knock against a clean surface.
Additional note:
The prefilter may be humidified with oil to increase its filteringperformance. Follow manufacturer‘s instructions!
ATTENCION:
If the air filter becomes damaged, replace immediately!
Pieces of cloth or large dirt particles can destroy the engine!
56
T00963GB 50
Maintenance
8.5 Replacing the spark plug
ATTENCION:
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 must be replaced in case of damage to the insulator,electrode erosion (burn) or if the electrodes are very dirty or oily.
ATTENCION: Use only BOSCH WSR 6F spark plug, CHAMPIONRCJ-6Y or NGK BPMR 7A.
The use of a non-approved spark plug may result in damage to theignition system.
Turn the cover lock (6) to the “Unlocked “ position and carefullyremove the filter cover (7).
Flip up spark plug cover (8). Pull plug cap (9) off spark plug. Removespark plug only by using universal wrench delivered with machine.
Electrode gap
The electrode gap must be 0.5 mm (0,020“).
57
T00963GB 51
Maintenance
8.6 Checking the ignition spark
Insert the combination wrench (9) between the hood and cylinder only
as shown.
ATTENCION!
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 rope hard.
If the function is correct, an ignition spark must be visible near the
electrodes.
58
T00963GB 52
Maintenance
8.7 Replacing the suction head
The felt filter (13) of the suction head can become clogged. It isrecommended to replace the suction head once every three months inorder to ensure unimpeded fuel flow to the carburetor.
Unscrew the fuel tank cap (12) and pull the loss-prevention stopperout.
Empty fuel tank.
To remove the suction head for replacement, pull it out through thetank filler neck using a piece of wire bent at one end to form a hook.
ATTENCION: Do not allow fuel to come into contact with skin!
8.8 Starter rope replacement
Loosen four screws (14). Remove the fan housing (15).
Unscrew 2 screws (16) and carefully remove air duct (17) from fanhousing.
Note and follow sequence (A-B-C-D ).
Remove remainders of old rope (18).
59
60
T00963GB 53
Maintenance
Thread a new 1000 mm (40“) long and 4,0 mm (0,16“) diameter starterrope as shown in the drawing (do not forget washer (19) and then tieknots at both ends.
Pull knot (20) into rope drum (21).
ATTENCION: The knot or, as the case may be, the end of the ropeshould not jut out over the surface of the rope drum.
Insert knot (22) into the starter handle (23).
Guide the rope into the recess (24) on the rope drum and use the ropeto turn the drum two turns in the direction shown by the arrow.
Holding the rope drum in your left hand, straighten out the twist in therope with your right hand, pull the rope tight, and hold.
Release the rope drum. The drum‘s spring force will now wind the ropearound the drum.
Repeat procedure three times . The starter handle must stand out fromthe fan housing.
61
62
T00963GB 54
Maintenance
NOTE: With the rope pulled all the way out, it must still be possible toturn the pulley another 1/4 turn against the return spring.ATTENCION! Injury hazard! When you pull out the starter ropehold the starter handle firmly. It will whip back if the rope drum isreleased by accident.
Assemble air duct in reverse order (see picture 63). Make sure that theguide (25) is located inside the seat (26) at the fan housing.
When replaceing fan housing, it may be necessary to pull the starterrope lightly so that the rope pulley catches.
8.9 Replace the return spring
Take off fan housing (see chapter “Starter rope replacement“).
Remove air duct from fan housing (see chapter “Starter ropereplacement“).
Remove retaining ring (1) (see accessories for extemal retaining ringpliers).
Pull off rope drum (2).
Unscrew screws (3).
Carefully and evenly remove retum spring (4) from spring holder withscrew driver or similar tool. Be extremely careful, as return spring ispretensed and could jump out of spring holder!
ATTENCION: Danger of bodily harm! Wear safety glasses andsafety gloves under all circumstances !
63
T00963GB 55
Maintenance
Replacement retum springs are delivered inside a housing andpretensed. CAUTION, the spring can jump out.
A spring that has jumped out can be placed back in the housing by
following the drawing (pay attention to the direction of rotation!) .
The new return spring (4) must be lightly greased with multipurpose
grease before proceeding with mounting inside the fan housing. After
greasing insert retum spring (4), press in slightly so that the brackets
(5) snap into the seats. Screw in screw (3) and only tighten lightly. Tum
rope drum slightly when placing until it snaps in audibly. Mount
retaining ring. Coil starter rope (see chapter “starter rope
replacement“).
Assemble air duct (see picture 62). If the need arises, pull starter
handle lightly until the starting device grips wehn replacing the fan
housing.
8.10 Cutting arm in inboard/outboard
NOTE: The cut-off saw is delivered with the cutting arm mounted in the
inboard position (1). For cutting up against obstacles, such as curbs or
walls, the cutting arm can be mounted to one side (outboard) (2). Use
this position only when actually necessary, and afterwards return the
cutting attachment to the inboard position. In this position the cut-off
saw has better balance, is easier to guide, and is not as fatiguing for
the operator.
64
T00963GB 56
Maintenance
8.11 Repositioning the cutting arm
Loosen nuts (5).
Loosen the tightening screw (3) (counter-clockwise) until the end of thescrew (4) is visible in the gap. Unscrew the nuts (5) and remove thecover (6).
Lift out stop bolt (7) with universal wrench (8) as shown in drawing untilprotective hood (10) can be turned.
NOTE: The turning stop (65/7) is not active when the stop bolt (7) hasbeen pulled. The protective hood (10) can thus be turned further thannormally allowed by the turning stop (65/7).
Disengage V-belt and then remove cutting arm.
65
66
T00963GB 57
Maintenance
Press the cutting arm (12) in the side position onto the drive armattachment.
Guide the V-belt (13) over the V-belt wheel (14).
Put the guard plate (15) on.
Screw on nuts (16) and tighten by hand.
To tighten the V-belt see “Tightening the V-belt / Checking V-belttension“.
Tighten the nuts (16) firmly with the combination wrench.
ATTENCION:
When you reposition the cutting attachment, the direction ofrotation of the cutting wheel changes.
Diamond blacks must be filted according to the turning direction!
67
68
T00963GB 58
Maintenance
8.12 Instructions for periodic maintenance
To ensure long life, prevent damage and ensure the full functioning ofthe safety features the following maintenance must be performedregularly. Warranty claims can be recognized only if this work isperformed regularly and properly. Failure to perform the prescribedmaintenance work can lead to accidents!
Users of the cut-off saw must not perform any maintenance work notdescribed in this Instruction Manual. All such work must be carried outby a WACKER service station.
General Entire Power Cut Clean exterior, check for damage. In case ofdamage, have repaired by a qualified servicecentre immediately
Cutting bladeClutch
Inspect regularly for damage and wear.
Protection hood Clean, check position
Beforeeach start
Cutting blade Check for damages and make sure the correctcutting blade for the planned aplication hasbeen filted.
V-belt Check V-belt tension.
Combinationswitch, Safetylocking button,Throttle lever
Functional check.
Fuel tank plug Check for tightness.
Every day Prefilter Clean. (Replace after 20 running hours)
Idle speed Check (cutting blade must not turn on idle).
Everyweek
Fan housing Clean to ensure proper air cooling.
Starter Check for damage.
V-belt Check V-belt tension, inspect for damage andwear.
Air filter cartridge Clean. (Replace after 100 running hours)
Spark plug Check and replace if necessary.
Muffler Check tightness of mounting.
Every 3months
Suction head Replace.
Fuel tank Clean.
BearingClutch drum
Clean and regrease.
T00963GB 59
Maintenance
Storage Entire cut-off saw Clean exterior, check for damage. In case ofdamage, have repaired by a qualified servicecentre immediately
Cutting blade Remove and clean.
Fuel tank Empty and clean.
Carburetor Run empty.
T00963GB 60
Maintenance
8.13 Troubleshooting
Malfunction System Observation Cause
Cutting bladedoes not startturning
Clutch Engine runs Damage to clutch
Cutting bladeturns whileengine idles
Carburetor,Clutch
Cutting bladeturns
Incorrect idle speed, clutchstuck
Engine doesnot start or onlywith difficulty
Ignitionsystem
Ignition spark Malfunction in fuel supplysystem, compressionsystem, mechanicalmalfunction.
No ignitionspark
Switch on STOP, fault orshort-circuit in the wiring,plug cap or spark plugdefective.
Fuel supply Fuel tank isfilled
Choke in wrong position,carburetor defective,suctionhead dirty, fuel line bent orinterrupted.
Compres-sion system
Inside Cylinder base packing ringdefective, radial shaftpackings defective, cylinderor piston rings defective
Outside Spark plug does not seal.
Mechanicalmalfunction
Starter does notengage
Spring in starter broken,broken parts inside theengine.
Insufficientpower
Carburetor Fuel tank isfilled Igntionspark
Wrong carburetoradjustment.
Engine doesnot start or onlywith difficulty
Fuel supply Fuel tank isfilled
Wrong idling adjustment,suction head or carburetordirty. Tank venting defective,fuel line interrupted, cabledefective, Stop switchdefective. Starting valvedirty.
Lowperformance
Serveralsystemsmay beinvolvedsimultane-ously
Engine is idling Air filter dirty, wrongcarburetor adjustment,muffler clogged, exhaustchannel in cylinder clogged.
T00963GB 61
FBTS
9. FBTS
9.1 Guide cart
The WACKER guide cart makes it much easier to carry out straightcuts, while simultaneously enabling almost untiring working. It can beadjusted for the operator‘s height, and can be operated with the cuttingarm mounted in the inboard or outboard position. For easier refuellingwhen using the trolley, we recommend adding an angled tank fillerneck.
The guide cart has been equipped with a water tank and a water spraysystem; the water will bind the dust during the cutting process and willalso help to cool the cutting disc.
Notches have been added to the area of the clamp lever, thus makingit easier to adjust the cutting depth of the blade. One notch isequivalent to 10 mm (0,4“) cutting depth.
T00964GB 62
FBTS
9.2 Safety precautions
9.2.1 The mounting brackets for the cut-off saw must be cleaned beforeplacing the BTS into the guide cart.
9.2.2 The stop bolt must be correctly engaged to avoid a possible detachingof the cut-off sawduring applications.
9.2.3 Be careful to verify that both the clamp lever for the cutting depthsetting and the star-shaped knob for the handle height setting aretightly screwed down during cutting applications.
9.2.4 The guide cart should be cleaned with water after each use to avoidpossible malfunctions.
9.2.5 Park the equipment on an even, horizontal surface during work breaks,storage or transport. Also make sure that the equipment has beensecured against tipping over or rolling away.
9.2.6 Push the throttle lever to the idle position (forwards) immediately afterending the cutting process.
T00964GB 63
Labels
SK00658GB 64
10. Labels
1 Fuel to oil ratio
2 Wacker Logo
3 Type
4 Cover safety
5 Protective hoad safety
C0003106GBFile
cer
tific
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care
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EC - Confornity Certificate
Wacker Construction Equipment AG , Preußenstraße 41, 80809 München
hereby certify that the construction equipment specified hereunder:1. Category:
Portable gasoline cut-off saw
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/EG* 89/336/EG* 98/37/EG
BTS 930L3 / BTS 935L3 BTS 1030L3 / BTS 1035L3
0008340 ... / 0008341 ...0008987 ... / 0008988 ...
0008339 ... / 0007975 ... / 0008912 ...0008989 ... / 0008990 ...
3,2 kW 4,2 kW
Conformity assessmentprocedure
Measured sound power level Guaranteed soundpower level
BTS 930/935L3 BTS 1030/1035L3
Annex V 109 dB(A) 110 dB(A) 111 dB(A)
Dr. SickBoard of Directors
DIN EN ISO 9001 CERTIFICATE
