Hilti DST 20-CA User manual

DST 20CA
English
Printed: 07.06.2017 | Doc-Nr: PUB / 5355799 / 000 / 00

Printed: 07.06.2017 | Doc-Nr: PUB / 5355799 / 000 / 00

English 1
Contents
1 Information about the documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1 Aboutthisdocumentation ...................................... 2
1.2 Explanationofsignsused ...................................... 3
1.2.1 Warnings ............................................. 3
1.2.2 Symbols in the documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2.3 Symbols in the illustrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Product-dependentsymbols .................................... 3
1.3.1 Symbolsontheproduct................................... 3
1.4 Stickers .................................................. 4
1.5 Productinformation .......................................... 4
1.6 Declarationofconformity ...................................... 4
1.7 RadioEquipmentDirective ..................................... 5
2 Safety ................................................... 5
2.1 Safetyinstructions ........................................... 5
2.1.1 General safety rules (acc. to UL 7451) . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.2 Basicsafetyinstructions .................................. 6
2.1.3 Electricalsafety......................................... 7
2.1.4 Safety measures at the danger areas . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1.5 Safetyattheworkplace ................................... 9
2.1.6 Safetyduringoperation .................................. 10
2.1.7 Safetyduringtransport .................................. 11
3 Description .............................................. 12
3.1 Productoverview ........................................... 12
3.2 Intendeduse .............................................. 13
3.3 Possiblemisuse............................................ 13
3.4 Itemssupplied ............................................. 13
3.5 Accessories............................................... 13
4 Technicaldata ............................................ 15
4.1 Technical data for the saw head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Technical data for the transport trolley . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Planning ................................................ 17
5.1 Cuttingsequence........................................... 17
5.2 Overcutoruncutdistances .................................... 17
5.3 Distance between rail supports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.4 Position of holes drilled for fastening the rail supports . . . . . . . . . . . . . . . . . 20
5.5 Powersource ............................................. 20
5.6 Useofextensioncables ...................................... 21
5.7 Coolingwatersupply ........................................ 21
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6 Assemblingthesawsystem .................................. 22
6.1 Installing the anchors for the rail supports . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Fasteningtherailsupports .................................... 22
6.3 Mounting the rail on the rail supports for normal cutting . . . . . . . . . . . . . . . . 23
6.4 Mounting the rail on the rail supports for angular cutting and adjusting the
cuttingangle .............................................. 24
6.5 Mounting the rail on the rail supports for cutting on stairs . . . . . . . . . . . . . . . 26
6.6 Extendingrails ............................................. 27
7 Preparing the saw system for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1 Mountingthesawhead ...................................... 27
7.2 Connecting the saw to the electric supply and water supply . . . . . . . . . . . . . 29
7.3 Adjustingthebladeguard ..................................... 30
7.4 Mountingthesawblade ...................................... 31
7.4.1 General instructions for mounting the blade . . . . . . . . . . . . . . . . . . . . 31
7.4.2 Mounting the saw blade for normal cutting . . . . . . . . . . . . . . . . . . . . . 31
7.4.3 Mounting the saw blade for flush cutting . . . . . . . . . . . . . . . . . . . . . . 32
7.4.4 Removing a saw blade with fitted mounting flange . . . . . . . . . . . . . . . 33
7.5 Fittingthebladeguard ....................................... 34
8 Workingwiththesaw ....................................... 35
8.1 Checks before beginning sawing work . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.2 Guidelinesandguidevalues ................................... 35
9 Dismantlingthesawsystem .................................. 36
9.1 Dismantlingthesawsystem ................................... 36
9.2 Blowing out the cooling circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10 Careandmaintenance ...................................... 37
10.1Adjustingtheguiderollers ..................................... 38
10.2Inspection ................................................ 39
10.3Maintenance .............................................. 39
11 Transportandstorage ...................................... 40
12 Troubleshooting ........................................... 40
13 Disposal................................................. 42
14 Manufacturer’swarranty .................................... 42
15 FCC statement (applicable in US) / IC statement (applicable in
Canada) ................................................. 43
1 Information about the documentation
1.1 About this documentation
• Read this documentation before initial operation or use. This is a prerequisite for safe,
trouble-free handling and use of the product.
• Observe the safety instructions and warnings in this documentation and on the
product.
• Always keep the operating instructions with the product and make sure that the
operating instructions are with the product when it is given to other persons.
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1.2 Explanation of signs used
1.2.1 Warnings
Warnings alert persons to hazards that occur when handling or using the product. The
following signal words are used in combination with a symbol:
DANGER! Draws attention to imminent danger that will lead to serious personal
injury or fatality.
WARNING! Draws attention to a potential hazard that could lead to serious
personal injury or fatality.
CAUTION! Draws attention to a potentially dangerous situation that could lead
to minor personal injury or damage to the equipment or other property.
1.2.2 Symbols in the documentation
The following symbols are used in this document:
Read the operating instructions before use
Instructions for use and other useful information
1.2.3 Symbols in the illustrations
The following symbols are used in illustrations:
These numbers refer to the corresponding illustrations found at the beginning of
these operating instructions.
The numbering reflects the sequence of operations shown in the illustrations
and may deviate from the steps described in the text.
Item reference numbers are used in the overview illustrations and refer to the
numbers used in the product overview section.
These characters are intended to specifically draw your attention to certain
points when handling the product.
1.3 Product-dependent symbols
1.3.1 Symbols on the product
Depending on the applicable country, the following symbols may be used on the product:
Rated speed under no load
Revolutions per minute
Diameter
Saw blade direction of rotation (arrow on the blade guard holder)
Do not dispose of electric tools, machines or appliances together with house-
hold waste.
Splash-proof
Warning: risk of cutting injury
Wear eye protection
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Wear ear protection
Wear protective gloves
Wear safety shoes
Suspension point provided for lifting by crane
1.4 Stickers
Stickers on the product
On the transport trolley
Using the transport trolley
On the saw head
Maximum water pressure and action to be taken in the event of
risk of frost
On the saw head
The machine is equipped with the Cut Assist function.
1.5 Product information
Hilti products are designed for professional use and may be operated, serviced and
maintained only by trained, authorized personnel. This personnel must be informed of
any particular hazards that may be encountered. The product and its ancillary equipment
may present hazards when used incorrectly by untrained personnel or when used not as
directed.
The type designation and serial number are printed on the type identification plate.
▶Write down the serial number in the table below. You will be required to state the
product details when contacting Hilti Service or your local Hilti organization to inquire
about the product.
Product information
Electric wall saw DST 20-CA
Generation 01
Serial no.
1.6 Declaration of conformity
We declare, on our sole responsibility, that the product described here complies with the
applicable directives and standards. A copy of the declaration issued by the certification
department can be found at the end of this documentation.
The technical documentation is filed and stored here:
Hilti Entwicklungsgesellschaft mbH | Tool Certification | Hiltistrasse 6 | 86916 Kaufering,
Germany
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1.7 Radio Equipment Directive
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc
is greater than or equal to 5 MVA at the interface point between the user's supply and
the public system
It is the responsibility of the installer or user of the equipment to ensure, by consultation
with the distribution network operator if necessary, that the equipment is connected only
to a supply with a short-circuit power Ssc greater than or equal to 5 MVA.
2 Safety
2.1 Safety instructions
This documentation contains important instructions on how to use the wall saw safely
and correctly. You can avoid residual hazards through observance and practical
implementation of the safety instructions found in this documentation and on the product.
2.1.1 General safety rules (acc. to UL 7451)
WARNING! Read and understand all instructions. Failure to follow all instructions
listed below, may result in electric shock, fire and/or serious personal injury.
SAVE THESE INSTRUCTIONS.
Work area
▶Keep your work area clean and well lit. Cluttered benches and dark areas invite
accidents.
▶Do not operate power tools in explosive atmospheres, such as in the presence
of flammable liquids, gases, or dust. Power tools create sparks which may ignite
the dust or fumes.
▶Keep bystanders, children, and visitors away while operating a power tool.
Distractions can cause you to lose control.
Electrical safety
▶Grounded tools must be plugged into an outlet properly installed and grounded in
accordance with all codes and ordinances. Never remove the grounding prong or
modify the plug in any way. Do not use any adaptor plugs. Check with a qualified
electrician if you are in doubt as to whether the outlet is properly grounded. If
the tools should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user.
▶Avoid body contact with grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is grounded.
▶Do not abuse the cord. Never use the cord to carry the tools or pull the plug from
an outlet. Keep cord away from heat, oil, sharp edges or moving parts. Replace
damaged cords immediately. Damaged cords increase the risk of electric shock.
▶When operating a power tool outside, use an outdoor extension cord marked
“W-A” or “W”. These cords are rated for outdoor use and reduce the risk of electric
shock.
Personal safety
▶Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use tool while tired or under the influence of drugs, alcohol,
or medication. A moment of inattention while operating power tools may result in
serious personal injury.
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▶Dress properly. Do not wear loose clothing or jewelry. Contain long hair. Keep
your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or
long hair can be caught in moving parts.
▶Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools
with your finger on the switch or plugging in tools that have the switch on invites
accidents.
▶Remove adjusting keys or switches before turning the tool on. A wrench or a key
that is left attached to a rotating part of the tool may result in personal injury.
▶Do not overreach. Keep proper footing and balance at all times. Proper footing
and balance enables better control of the tool in unexpected situations.
▶Use safety equipment. Always wear eye protection. Dust mask, non-skid safety
shoes, hard hat, or hearing protection must be used for appropriate conditions.
Tool use and care
▶Use clamps or other practical way to secure and support the workpiece to a
stable platform. Holding the work by hand or against your body is unstable and may
lead to loss of control.
▶Do not force tool. Use the correct tool for your application. The correct tool will
do the job better and safer at the rate for which it is designed.
▶Do not use tool if switch does not turn it on or off. Any tool that cannot be controlled
with the switch is dangerous and must be repaired.
▶Disconnect the plug from the power source before making any adjustments,
changing accessories, or storing the tool. Such preventive safety measures reduce
the risk of starting the tool accidentally.
▶Store idle tools out of reach of children and other untrained persons. Tools are
dangerous in the hands of untrained users.
▶Maintain tools with care. Keep cutting tools sharp and clean. Properly maintained
tools, with sharp cutting edges are less likely to bind and are easier to control.
▶Check for misalignment or binding of moving parts, breakage of parts, and any
other condition that may affect the tools operation. If damaged, have the tool
serviced before using. Many accidents are caused by poorly maintained tools.
▶Use only accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool, may become hazardous when used on
another tool.
Service
▶Tool service must be performed only by qualified repair personnel. Service or
maintenance performed by unqualified personnel could result in a risk of injury.
▶When servicing a tool, use only identical replacement parts. Follow instructions
in the Maintenance section of this manual. Use of unauthorized parts or failure to
follow Maintenance Instructions may create a risk of electric shock or injury.
2.1.2 Basic safety instructions
▶Use the machine only when it is in perfect working order. Check the machine,
cables and plugs for damage each time before use. Have damaged parts repaired or
replaced. If the cable is damaged or cut through during use, unplug the cable from
the electric supply immediately. Contact Hilti Service.
▶Follow all safety instructions and other instructions printed in the documentation or on
the machine. Failure to observe this point may lead to potentially fatal injury or serious
damage to the equipment or other property.
▶Use the machine for the first time only after you have been trained by a Hilti specialist
on how to use it safely.
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▶Each time before using the machine, check that all parts are fitted correctly, that they
function correctly and are undamaged. Do not render safety devices or protective
devices inoperable.
▶Remove any adjusting keys and wrenches before switching the machine on. A wrench
or key left attached to a rotating part of the machine may result in personal injury.
▶Do not overload the machine. Press the emergency stop button on the remote
control unit immediately and then unplug the supply cable from the power outlet if you
become aware of a dangerous situation.
▶Keep the grips dry, clean and free from oil and grease.
▶Before releasing the saw head locking levers, make sure you are holding the saw head
securely.
▶Follow the instructions concerning care and maintenance.
▶Never leave the machine unattended. Store machines, when not in use, in a secure
place where they cannot be accessed by third parties.
2.1.3 Electrical safety
DANGER
Electricity presents a risk of fatal accident! There is an increased risk of electric
shock if your body is grounded.
▶Avoid body contact with earthed / grounded surfaces.
▶Before operating the saw, make sure that the AC supply voltage corresponds to the
specification given on the type identification plate.
▶Do not make any changes to the plug on the electric supply cable. The plug on the
electric supply cable may not be modified in any way whatsoever.
▶Do not use adapter plugs with earthed (grounded) power tools or machines.
▶Check the machine’s electric supply cable at regular intervals and have it replaced by
a qualified electrical specialist if found to be damaged.
▶Check extension cables at regular intervals and replace them if found to be damaged.
▶If the electric supply cable to the saw is damaged while working, do not touch the
supply cable or the saw. Press the emergency stop button and unplug the supply
cable from the power outlet.
▶Do not operate the machine if it cannot be switched on and off correctly at the control
switch. Damaged or faulty switches must be replaced at a Hilti service center.
▶Do not abuse the electric supply cable. Never use the supply cable to carry, suspend,
pull or unplug the machine.
▶Use only extension cables of a type approved for the application and with conductors
of adequate gauge. → page 21
▶Do not work with rolled-up extension cables. A rolled-up cable may cause a drop in
power and may result in the cable overheating.
▶Disconnect the power cable before beginning cleaning and maintenance work or in
the event of an interruption between periods of operation.
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2.1.4 Safety measures at the danger areas
WARNING
A risk is presented by moving parts, by falling objects or debris that may fly
off. Falling objects could cause serious injury.
▶Make sure that the area is cordoned off, that supports are in place and warnings
to third parties are displayed. When setting up the saw system and when
removing blocks that have been cut away, always ensure that no persons are
below the area in which you are working.
▶Secure the working area. Ensure that no persons can be injured or property /
equipment damaged by moving parts, falling objects or by debris that may fly off
during the sawing operation.
▶Keep a safe distance of at least 1.5 m (60 in) away from all moving parts while the
equipment is in operation.
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