TYROLIT Hydrostress HBE 400 User manual

Operating Instructions
Hand Saw HBE
400 
Index 000
Original Instructions
10998752 EN
/18.08.2017

2
Power Input North America: 20 A, Other Regions 110-120V / 3000W
220-240V / 3200W
Voltage North America: 115V~60Hz, Other Regions: See Machine Nameplate
Rated speed/ min-1 n=3900 min -1
Blade Diameter 405mm (16 in.)
Arbor 25.4 (1 in.)
Max. Cutting Depth 150mm (6 in.)
Weight 9.6kg (21.1 Lbs) (10.kg (22.2 Lbs) with guide rollers)
SPECIFICATIONS
Water Feed Nozzle
Blade Guard Locking LeverSide Handle Release Button
Main Handle Trigger Switch
Water Feed Valve
Water Coupling
Brush Cover
Buttery Bolt
Guide Roller Assembly
Arbor Lock Button
Load Warning
Lamp
Blade Guard
Blade Guard Brush
Diamond Blade
Vacuum Port
Arbor Bolt
Outer Flange
Splash Guard
Male Clip
Female Clip
Toggle Latches

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GENERAL POWER TOOL SAFETY WARNINGS
WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious injury.
Save all warnings and instructions for future reference. The term“power tool” in the warnings refers to your
mains operated (corded) power tool or battery-operated (cordless) power tool.
General Power Tool Safety Warnings - Work Area Safety
a. Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b. 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.
c. Keep children and bystanders away while operating a power tool. Distractions can cause you to
lose control.
General Power Tool Safety Warnings - Electrical Safety
a. Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any
adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will
reduce risk of electric shock.
b. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and
refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
c. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the
risk of electric shock.
d. Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool.
Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords
increase the risk of electric shock.
e. When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a
cord suitable for outdoor use reduces the risk of electric shock.
f. If operating a power tool in a damp location is unavoidable, use a ground fault circuit
interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.
General Power Tool Safety Warnings - Personal Safety
a. Stay alert, watch what you are doing and use common sense when operating a power tool. Do
not use a power tool while you are tired or under the influence of drugs, alcohol or medication.
A moment of inattention while operating power tools may result in serious personal injury.
b. Use personal protective equipment. Always wear eye protection. Protective equipment such as
dust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will
reduce personal injuries.
c. Prevent unintentional starting. Ensure the switch is in the off-position before connecting to
power source and/or battery pack, picking up or carrying the tool. Carrying power tools with
your finger on the switch or energising power tools that have the switch on invites accidents.

4
d. Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left
attached to a rotating part of the power tool may result in personal injury.
e. Do not overreach. Keep proper footing and balance at all times. This enables better control of
the power tool in unexpected situations.
f. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
g. If devices are provided for the connection of dust extraction and collection facilities, ensure
these are connected and properly used. Use of dust collection can reduce dust-related hazards.
General Power Tool Safety Warnings - Power Tool Use And Care
a. Do not force the power tool. Use the correct power tool for your application. The correct power
tool will do the job better and safer at the rate for which it was designed.
b. Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot
be controlled with the switch is dangerous and must be repaired.
c. Disconnect the plug from the power source and/or the battery pack from the power tool
before making any adjustments, changing accessories, or storing power tools. Sucve safety
measures reduce the risk of starting the power tool accidentally.
d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with
the power tool or these instructions to operate the power tool. Power tools are dangerous in the
hands of untrained users.
e. Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts
and any other condition that may affect the power tool’s operation. If damaged, have the
power tool repaired before use. Many accidents are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are
less likely to bind and are easier to control.
g. Use the power tool, accessories and tool bits etc., in accordance with these instructions, taking
into account the working conditions and the work to be performed. Use of the power tool for
operations different from those intended could result in a hazardous situation.
General Power Tool Safety Warnings - Service
a. Have your power tool serviced by a qualified repair person using only identical replacement parts.
This will ensure that the safety of the power tool is maintained.
Symbols used in this manual
V…….......volts
A…….......amperes
Hz……......hertz
W……......watt
~………....alternating current

5
SAFETY INSTRUCTIONS FOR CUTTING-OFF OPERATIONS
Cut-off machine safety warnings
a. The guard provided with the tool must be securely attached to the power tool and
positioned for maximum safety, so the least amount of wheel is exposed towards the
operator. Position yourself and bystanders away from the plane of the rotating wheel. The
guard helps to protect operator from broken wheel fragments and accidental contact with wheel.
b. Use only diamond or abrasive cut off wheels for your power tool. Just because an accessory can be
attached to your power tool, it does not assure safe operation.
c. The rated speed of the accessory must be at least equal to the maximum speed marked on
the power tool. Accessories running faster than their rated speed can break and fly apart.
d. Wheels must be used only for recommended applications. For example: do not grind with the side
of a cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding, side forces applied to
these wheels may cause them to shatter.
e. Always use undamaged wheel flanges that are of correct diameter for your selected wheel. Proper
wheel flanges support the wheel thus reducing the possibility of wheel breakage.
f. The outside diameter and the thickness of your accessory must be within the capacity rating
of your power tool. Incorrectly sized accessories cannot be adequately guarded or controlled.
g. The arbor size of wheels and flanges must properly fit the spindle of the power tool. Wheels
and flanges with arbor holes that do not match the mounting hardware of the power tool will run
out of balance, vibrate excessively and may cause loss of control.
h. Do not use damaged wheels. Before each use, inspect the wheels for chips and cracks. If
n0………......Rated speed
min-1….........revolutions or reciprocation per minute
.........Protective earth
.........Warning of general danger
........Wear a helmet, goggles and hearing protection
.........Work Clothes
.........Read the instructions
.........Before working on the equipment unplug mains
........DANGER! Keep hands away from cutting area and the blade.
........do not dispose of electric tools, accessories and
packaging together with household waste material
........Wear safety shoes
........Wear gloves
........Wear a breathing mask
Type plate
Safety sticker

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power tool or wheel is dropped, inspect for damage or install an undamaged wheel. After
inspecting and installing the wheel, position yourself and bystanders away from the plane
of the rotating wheel and run the power tool at maximum no load speed for one minute.
Damaged wheels will normally break apart during this test time.
i. Wear personal protective equipment. Depending on application, use face shield, safety
goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and
shop apron capable of stopping small abrasive or workpiece fragments. The eye protection must
be capable of stopping flying debris generated by various operations. The dust mask or respirator
must be capable of filtrating particles generated by your operation. Prolonged exposure to high
intensity noise may cause hearing loss.
j. Keep bystanders a safe distance away from work area. Anyone entering the work area must
wear personal protective equipment. Fragments of workpiece or of a broken wheel may fly away and
cause injury beyond immediate area of operation.
k. Hold the power tool by insulated gripping surfaces only, when performing an operation
where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory
contacting a "live" wire may make exposed metal parts of the power tool "live" and could give the
operator an electric shock.
l. Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged
and your hand or arm may be pulled into the spinning wheel.
m. Never lay the power tool down until the accessory has come to a complete stop. The spinning wheel
may grab the surface and pull the power tool out of your control.
n. Do not run the power tool while carrying it at your side. Accidental contact with the spinning
accessory could snag your clothing, pulling the accessory into your body.
o. Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and
excessive accumulation of powdered metal may cause electrical hazards.
p. Do not operate the power tool near flammable materials. Sparks could ignite these materials.
Cut-Off Machine Safety Warnings - Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating wheel. Pinching or snagging causes rapid
stalling of the rotating wheel which in turn causes the uncontrolled power tool to be forced in the direction
opposite of the wheel’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that
is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick
out. The wheel may either jump toward or away from the operator,
depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also
break under these conditions.
Kickback is the result of power tool misuse and/or incorrect operating procedures or conditions and can
be avoided by taking proper precautions as given below.
a. Maintain a firm grip on the power tool and position your body and arm to allow you to resist
kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback
or torque reaction during start-up. The operator can control torque reactions or kickback forces, if
proper precautions are taken.

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b. Never place your hand near the rotating accessory. Accessory may kickback over your hand.
c. Do not position your body in line with the rotating wheel. Kickback will propel the tool in direction
opposite to the wheel’s movement at the point of snagging.
d. Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the
accessory. Corners, sharp edges or bouncing have a tendency to snag the rotating accessory and cause
loss of control or kickback.
e. Do not attach a saw chain, woodcarving blade, segmented diamond wheel with a peripheral
gap greater than 10 mm or toothed saw blade. Such blades create frequent kickback and loss of
control.
f. Do not “jam” the wheel or apply excessive pressure. Do not attempt to make an excessive
depth of cut. Overstressing the wheel increases the loading and susceptibility to twisting or binding
of the wheel in the cut and the possibility of kickback or wheel breakage.
g. When wheel is binding or when interrupting a cut for any reason, switch off the power tool
and hold the power tool motionless until the wheel comes to a complete stop. Never attempt to
remove the wheel from the cut while the wheel is in motion otherwise kickback may occur.
Investigate and take corrective action to eliminate the cause of wheel binding.
h. Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully
re-enter the cut. The wheel may bind, walk up or kickback if the power tool is restarted in the workpiece.
i. Support panels or any oversized workpiece to minimize the risk of wheel pinching and
kickback. Large workpieces tend to sag under their own weight. Supports must be placed under
the workpiece near the line of cut and near the edge of the workpiece on both sides of the wheel.
j. Use extra caution when making a “pocket cut” into existing walls or other blind areas. The
protruding wheel may cut gas or water pipes, electrical wiring or objects that can cause kickback.
Cut-Off Machine Safety Warnings - Additional Safety Rules
WARNING: Avoid cutting in the upper quadrant of the
blade, especially when beginning the cut. This area is
highly likely to lead to kickback.
WARNING: When cutting plastics, do not allow the plastic
to melt. If the plastic melts, it can stick to the blade,
leading to kickback.
Table A Required Gauges for Extension Cords
Volts Total length of cord in feet
Ampere Rating 110-120 25(8m) 50(15m) 100(30m) 150(50m)
220-240 50(15m) 100(30m) 150(50m) 300(100m)
More Than Not More Than Minimum gauge for cord (AWG)
12 16 14(2.5mm2) 12(4.0mm2) Not Recommended

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GROUNDING INSTRUCTIONS
1. All grounded, cord-connected tools:
In the event of a malfunction or breakdown, grounding provides a path of least resistance for electric
current to reduce the risk of electric shock. This tool is equipped with an electric cord having an
equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching
outlet that is properly installed and grounded in accordance with all local codes and ordinances.
Do not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified
electrician.
Improper connection of the equipment-grounding conductor can result in a risk of electric shock. The
conductor with insulation having an outer surface that is green with or without yellow stripes is the
equipment-grounding conductor. If repair or replacement of the electric cord or plug is necessary, do not
connect the equipment-grounding conductor to a live terminal.
Check with a qualified electrician or service personnel if the grounding instructions are not completely
understood, or if in doubt as to whether the tool is properly grounded.
Use only 3-wire extension cords that have 3-prong grounding plugs and 3 pole receptacles that accept
the tool's plug.
Repair or replace damaged or worn cord immediately.
2. Grounded, cord-connected tools intended for use on a supply circuit having a nominal rating less than
150 V:
This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch
A. The tool has a grounding plug that looks like the plug illustrated in Sketch A. A temporary adapter,
which looks like the adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-pole
receptacle as shown in Sketch B if a properly grounded outlet is not available. The temporary adapter
should be used only until a properly grounded outlet can be installed by a qualified electrician. The
green-colored rigid ear, lug, and the like, extending from the adapter must be connected to a permanent
ground such as a properly grounded outlet box.
Note: In Canada, the use of a temporary adapter is not permitted by the Canadian Electrical Code.
Note: In Canada, the use of a temporary adapter is not permitted by the Canadian Electrical Code.
GROUNDING PIN (A)
ADAPTER
GROUNDING
MEANS
(C)
AA210
(B)
METAL SCREW
COVER OF GROUNDED
OUTLET BOX

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ELECTRICAL CONNECTION
The network voltage must conform to the voltage indicated on the tool name plate. Under no
circumstances should the tool be used when the power supply cable is damaged. A damaged cable
must be replaced immediately by an authorized Customer Service Center. Do not try to repair the
damaged cable yourself. The use of damaged power cables can lead to an electric shock.
WARNING: Never operate a damaged machine. Always tag a
damaged machine and take it out of service until repairs can
be made.
WARNING: These machines are equipped with a Portable
Residual Current Device (PRCD) also known as a Ground Fault
Circuit Interrupter (GFCI). Always use this device whenever using
the machine to reduce the risk of shock hazards. Always
position the PRCD as close as possible to the power source.
Test and reset the PRCD device before each use. Press the“Test”
button to test. Press the “Reset” button to energize the circuit
to the machine.
WARNING: Always connect the plug into the wall socket with a drip loop. If the cable leads downward
directly into the wall socket, any water on the cable could run into the socket, causing a hazard.
INTRODUCTION
This machine is equipped with two handles and a blade guard. The motor has overload and overheat
protection. It has an integrated water feed system as required for diamond cutting and has a portable residual
current device (PRCD) for electrical safety. It is used primarily with diamond blades, but abrasive wheels may
also be used with this machine. It is intended for cutting masonry, stone, concrete, reinforced concrete and
similar materials. All other uses are prohibited.
LIST OF CONTENTS
• Concrete Saw
• Guide Roller Assembly
• M17 Combination Wrench
• Splash Guard
ASSEMBLY
• Mount the blade. ( See below“Mounting the Blade”)
• Mount the Guide Roller Assembly if desired ( See below“Guide Roller Assembly”)
• Mount the blade guard brush (See below "Blade Guard Brush" for assembly instructions)
• Mount the splash guard (See below "Splash Guard" for assembly instructions)
Note: PRCD (GFCI) appearances vary
according to the requirements of
various regions. Photos for reference
only
Test Button
Reset Button
On Lamp

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DIAMOND BLADES
Allowed Types Of Blades
This machine may use diamond blades or abrasive wheels.
• Only use either segmented or continuous rim diamond blades.
• If the diamond blades are segmented, the maximum allowable peripheral gap between segments is
10mm and must be with a negative rake angle.
• Only diamond blades of 405mm (16") or less may be used.
• Blade thickness must be at least 2.0mm and no greater than 6.35mm
Blade Storage And Transport
Do not store or transport the machine with the blade mounted. Remove the blade and store in such a way that
it is protected from being bent or damaged when the machine is not in use-this will help prevent damage to
the blade.
A damaged blade can cause irregular conditions, this can cause imbalance and result in a hazard.
Always inspect new blades for storage or transport damage.
About Diamond Blades
Diamond blades consist of a steel core with diamond segments added to its periphery.
Diamond blades are available for different hardnesses of masonry materials, stone, concrete, reinforced
concrete, etc.
Some diamond blades are designed to be used wet only, while others are designed to be allowed to be used
dry. Refer to the blade manufacturer’s instructions.
Generally speaking, even if the blade is specified as a dry type blade, diamond tools always work better when
wet, and dry cutting should be limited to situations in which water cannot or should not be used. Water will
prevent the blade from overheating, greatly reduce the amount of harmful dust created by cutting, remove
the slurry from the cut, and extend the life of the blade. Diamond is the hardest substance known, but even
diamond is unable to withstand extreme overheating combined with the cutting forces involved. Dry cutting
of very hard materials such as porcelain or reinforced concrete will lead to rapid tool wear and possible failure.
The diamond impregnated segments in a sintered diamond blade operate on a principle of controlled
erosion. The blade does not cut the material, rather it grinds it away. The bond matrix holding the diamonds is
continually worn away by abrasion with the workpiece, exposing the harder diamonds to stand proud from the
bond matrix. A blade with good diamond exposure is a sharp blade. Blades made for cutting harder materials
will have a softer bond, allowing the diamonds project more aggressively (but will not last as long). Blades
made for cutting softer, abrasive materials will have a harder bond, allowing them to resist the abrasiveness of
the material and to last longer. The other factor is the grit size of the diamonds themselves: very hard materials
tend to require a finer grit size, while coarser grits will cut faster.
This erosion process causes heat and particles, which require water to cool and rinse free. Without adequate
water, the blade would overheat and be destroyed.
With too much water and not enough feed pressure, there would not be adequate erosion of the bond matrix
(the diamonds not exposed) and the blade becomes dull (diamond segments polish smooth). This is called

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glazing and luckily the blade can be de-glazed (sharpened). If the blade seems to refuse to cut anymore, you
know that it is glazed.
See below: ”Sharpening a Glazed Blade”
Never use a sharp motion or the blade will be damaged. Conversely, don’t feed too gently or the diamond
segments will become glazed. Keep the blade steadily working, but don’t be abusive or give the blade shock
impacts into the work surface.
Take great care to keep the blade perpendicularly aligned to the kerf. If the blade is crooked, it will easily bind.
When cutting reinforced concrete, if embedded steel such as rebar is encountered, take special care. When the
steel is encountered, the water will generally go clear and vibration will begin. Reduce the feed pressure by
about 1/3 and let the blade go at its own pace, if there is too much vibration the blade may be destroyed. Once
the steel is passed, continue normally. A properly sharp blade with good diamond exposure should be able to
cut through rebar if handled well.
NOTE: Never use a wet-type diamond blade without water. It will overheat and be destroyed.
NOTE: When using dry blades, do not allow them to overheat. It is best to cut no longer than about 60
seconds at a time, with 10 second running in air cool down times in between.
Always mount the blade with the arrow matching the direction of rotation of the machine (A direction arrow is
marked on the blade guard).
WARNING: Never use blades for cutting a material other than the material they were intended for.
SHARPENING A GLAZED BLADE
Diamond blades may become glazed (dull) for various reasons, such as cutting reinforced concrete with an
excess of embedded steel, or from cutting with too little downforce which can lead to the segments becoming
polished or “glazed”. Once the diamond segments are glazed, the blade’s cutting performance will degrade and
the segments will overheat. To resharpen the blade, turn down the water feed and make a few cuts in a very
soft, abrasive material such as brick.
MOUNTING THE BLADE
First make sure that the machine is unplugged.
Then, using the 17mm combination wrench, engage the arbor bolt and turn the arbor while pressing on the
arbor lock (See page 2). When the arbor reaches the right position, the arbor lock will be allowed to engage.
Then the arbor bolt may be loosened and the plain outer flange may be removed. (It is a standard, right hand
thread, so turn anticlockwise to loosen.)
The inner flanges are specific to the blade arbor bore diameter. There are three possible blade arbor bore sizes
depending on the market where the machine is sold: 20mm, 22.2mm (7/8”), and 25.4mm (1”) Check the inner
flange to ensure that the size matches the bore of the blade which you intend to use.
The 7/8”and 1” sizes each have a specific inner flange which must be used. For the 20mm size, the bore directly
engages the arbor and thus uses a plain flange on both the inside and outside.

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Inspect the blade before use. It must not be cracked, warped or damaged in any way that would cause a hazard
in operation. Loose diamond segments can be ejected at high speed, causing possible injury. Always check
that the diamond segments are not under cut. If the diamond segments are thinner or nearly thinner than the
blade core, the kerf will be too tight fitting and could easily lead to kickback.
Ensure that the flanges and blade bore are clean and undamaged and that everything fits properly. The flanges
may not be used if they are warped, the surface is uneven, burred or if they are dirty. The arbor bolt and
arbor threads must be undamaged. Inspect the blades for segment damage, arbor hole damage or any other
damage which could cause hazardous operation.
The protruding edge of the inner flange should be facing the blade. Then mount the blade to the inner flange
and add the outer flange. Add the arbor bolt and tighten to 15-25 Nm.
WARNING: Do not attempt to mount a blade which does not match the mounting hardware. It will lead
to eccentric running and vibration which will be uncontrollable.
ADJUSTING THE BLADE GUARD
The blade rotates clockwise when viewed from the arbor end. Therefore, most of the cutting debris, sparks
and slurry is thrown to the rear. So the blade guard should be adjusted so that the rear edge is flush with the
workpiece.
TO ADJUST
First pull out the locking lever against the spring tension, then rotate the
blade guard to the desired position. Allow the locking lever to engage the
nearest slot in the guard to lock it into position.
BLADE GUARD BRUSH
There is a removable brush at the rear of the guard to help contain sparks,
dust, debris and slurry. To install, simply push the brush into the slot in the bottom of the dust port bracket
until it clicks in place. This brush may be pulled straight out to replace when worn.
SPLASH GUARD
The spring-loaded splash guard is useful to help to contain slurry which splashes toward the back.
To install, simply clip into place on the back of the dust port bracket. To remove, tilt upward to pop free.
If the splash guard is not needed, such as when cutting dry, it may be clipped up out of the way. Simply engage
the male clip on the flap with the female clip on the mount. Unclip to release.
WATER CONNECTION
Water is a basic requirement for diamond sawing with wet-type diamond blades. The water serves as a coolant
to avoid the working surface of the diamond segments from overheating.
When the diamond bit becomes overheated, both the bond matrix and even the diamonds break down, thus
destroying the blade. Besides cooling, water also keeps down dust and flushes away abrasive particles.
Blade Guard Locking Lever

13
WARNING: Always use the PRCD (GFCI) when operating with water
WARNING: Never allow water to enter the motor. It could lead to
an electric shock.
WARNING: Check all connections of the water feed system to
ensure there are no leaks. Inspect hoses and other critical parts
which could deteriorate.
WARNING: The maximum water pressure should not exceed 70
psi (4 bar).
Use a water collector with a wet vacuum to collect cooling water if nearby objects could be damaged by water.
The water feed system is built into the machine. To connect with the water supply, first pull the quick-release
collar to remove the female side of the water coupling. Then unscrew the nut and engage the coupling to the
water hose. Now reconnect the water coupling to the male water feed valve. Press it until it clicks.
The water flow is controlled by the water feed valve. The water to the blade may be finely adjusted to the
required amount and no more.
NOTE: Contaminants in the water supply can easily plug up the fine water nozzles in the blade guard.
Ensure that the supply water is clean. If you find that there is no water flow to the blade, then clean out
the water feed system on the machine.
GUIDE ROLLER ASSEMBLY
The guide rollers make it easier to keep the blade plane perpendicular to
the workpiece. To install, slacken the butterfly bolt slightly and engage the
four claws with the four eyelets on the bottom of the motor housing, then
tighten the butterfly bolt. Note that roller assembly is offset to one side to
avoid contacting the blade, so it may only be installed in one orientation.
If it is not needed, the guide roller assembly may be removed and set
aside.
OVERLOAD PROTECTION, OVERHEAT PROTECTION
Overload & Load Warning Lamp
When full load is reached, the load warning lamp will flash red. If full load
is exceeded and sustained for too long, the motor will shut down and the
load warning lamp will glow solid red. In this case, the motor must be first
shut off and then restarted. When this happens, the motor will very likely
be near overheating, so it is also a good idea to run the motor at no load
for a few minutes to cool it before continuing.
Overheat Thermal Protection
If the temperature of the motor gets too high, the thermal protection will shut the motor down. The switch
must be first shut off and then restarted. When this happens, do not immediately start cutting after restarting
Buttery Bolt
Load Warning Lamp
Open
Closed
Water Feed Valve

14
the motor. Always run the machine at no load for a few minutes to return to a normal operating temperature
before continuing.
CAUTION: The motor will be damaged if it is repeatedly overloaded or overheated. Always cool the
motor by running at no load for a few minutes whenever it stops from either overheat or overload.
OPERATION
How to hold the machine
• Always hold the machine with both hands, with the right hand on the main handle and with the left hand
on the side handle. (This applies even if the operator is left-handed)
• Do not stand directly in line with the blade.
Rather, stand in such a way that, if it kicks back,
you will not be in the path of the blade.
• Never lean over the blade path. That would put
your body in line with the blade if it kicks back.
• Do not cut above shoulder height.
• Never cut while standing on a ladder or other
unstable platform.
• While cutting on a vertical surface like a wall, hold
the machine in a “tail down”position in such a way that the upper quadrant of the blade does not contact
the workpiece.
Before cutting
• Check the area where the cut is to be made to ensure that it is clear of objects which could cause the
operator to stumble.
• Before cutting, it is sometimes useful to mark
the line of cut with chalk or the like. For straight
cutting, a wood plank is also useful in guiding
the machine to make a straight cut.
• Ensure that all bystanders are at a safe distance.
• Ensure that the equipment is grounded.
• Ensure that all safety equipment is in place.
Proper Support for the Workpiece
• Support the workpiece on in such a way that the kerf will not pinch down on the blade.
• Secure the workpiece so that it will not roll, slip away or move due to vibration while cutting
• The cutting sequence is important when making cutouts. Always make the last cut in a way that avoids
the blade being pinched. Thus, make the bottom horizontal cut first, then the sides and finally make the
top horizontal cut last.
• Make note of the weight of the workpiece and the direction which it will fall when it is cut through.
• Whenever there is a situation where severing the workpiece will cause a hazardous situation, leave a tab
of material intact and finish off the operation with a chisel or the like.

15
Cutting Technique
• Holding the machine with both hands to resist the start up torque, press the release button and then
squeeze the trigger switch.
• Allow the machine to reach full speed before contacting the workpiece.
• Adjust the water flow as needed by turning the water feed valve.
• Then gently begin the cut with the rear portion of the blade until the kerf is established. Make the first
cut in the forward direction (so that you can see
the line of cut). Then make following cuts in the
backward direction.
• Do not try to cut too much depth in one pass.
Never exceed about 50mm (2”) per pass. It is
better to cut in multiple passes to minimize the
cutting contact area of the blade and keep the
blade spinning fast.
• It’s a good idea to first cut a shallow guiding
groove in the forward direction before
proceeding to make the main cut in the
backward direction. If any correction is needed.
Lift the blade and cut slightly ahead and then
back into the existing kerf. Take care to avoid the
blade being pinched.
• In round workpieces, the best technique is to
use a slow, uniform back and forth motion while
cutting with the bottom quadrant of the blade.
• Do not allow the machine to bog down. Limit your feed pressure to keep the blade spinning at high
speed.
• Never side load the blade in the kerf.
• If the workpiece is very heavy and may cause a hazard when it is cut through, do not cut all the way
through the material. Leave some tabs of material intact and then finish the cut with a chisel or similar
tool.
• Concrete cutting is very stressful for the motor: After the cut is finished, it is a good practice to run the
machine at no load for a short time to lower the motor temperature before stopping.
Stopping
Release the trigger to stop the machine. After the trigger is released, the blade will continue spinning for a
time.
WARNING: Do not set the machine down until the blade has stopped turning.
MAINTENANCE AND CLEANING
This machine operates in a very harsh environment. The slurry created by wet cutting and the dust created by
dry cutting gets sucked into the motor’s cooling slots and enters the motor. The slurry of brick and concrete
contains salts and other corrosive substances which will severely shorten the life of the motor or cause
electrical shorts if allowed to accumulate.
Therefore, it’s essential for the long life of the tool that it be thoroughly cleaned after each use.
Release Button Trigger Switch
1.
2.

16
Compressed air should be blown through the machine’s cooling slots at the back of the machine while the
motor is running.
Daily Maintenance
• Keep the machine clean
• Check to ensure that the power supply cable is in good condition.
• Ensure all screws are tight.
• Check the condition of all safety equipment such as the blade guard
• Check the blade for damage.
Carbon Brushes
The carbon brushes are a normal wearing part and must be replaced when they reach their wear limit. This
machine is equipped with auto-stop carbon brushes. If the machine comes to a stop unexpectedly, the brushes
should be checked. The auto-stop brush design protects the motor by stopping the machine before the carbon
brushes are completely worn out.
Caution: Always replace the brushes as a pair.
To replace
1. Remove the screw and remove the brush cover.
2. Using pliers rotate the brush spring out of the way and slide
the old carbon brush out of the brush holder.
3. Unscrew the screw to remove the brush lead. The old
carbon brush may now be lifted away.
4. Install a new brush. Installation is the reverse of removal.
5. Replace the brush cover.
If the replacement of the power supply cord is necessary, this has
to be done by the manufacturer or their agent in order to avoid a
safety hazard.
WARNING: All repairs must be entrusted to an authorized service center. Incorrectly performed repairs
could lead to injury or death.
Do not throw electric power tools into the household waste!
In accordance with the European Directive 2002/96/EG on Waste Electrical and Electronic Equipment and
transposition into national law, used electric power tools must be collected separately and recycled in an
environmentally friendly manner.
Brush Cover

17
WIRING
CARBON
BRUSH
CARBON
BRUSH
MOTOR
AC SWITCH
1
2
1
2
ELECTRONICS UNIT
Temperature Sensor

18
EXPLODED VIEW
23 05
10
11
12
14
15
09
08
23
96
24
21 22
21
22 05
04
16
18
17
30
29
28
31
32 27
26
03 02 01
13
58
59
60
61
63
64
65
67
68
69
69
71
72
81
82
83
84
69
71
75 76
77
78
79
80
74 73
90
88
88
89
62
94
33
34
36
42
38
40
41
46 45
44
43
48
37
47 46
35B
49
53
54
55
50
41
51
52 37
56
35A
39
71
70
70
25
66
19
91
57
93
92
93
92
93
92
NO.01~99 Version 2.6
37
95
97
98
FLUSH CUT FLANGE SET (LYBHP & CARDI) FLUSH CUT FLANGE SET (60MM / 1")
99A 99B
99A-1
99A-2
99A-3
99A-4
99A-5
99A-6
99B-1
99B-2
99B-3
99B-4
99B-5
99B-6
06
79A

19
PARTS LIST
NO. TYROLIT No. Name Parts Name Q'TY
1 10997102 Kabel 230V / PRCD/Stecker Powersup.cord/plug 1
2 10993795 PRCD-Schutzs.230V Inline PRCD 230V 1
3 10998724 Kabeltülle Cord armour 1
4 10993713 Kabelklemme Cord clip 1
5 10997069 PT-Schr K40x14 Lins. A2 PT-screw K40x14 lens A2 3
6 10998725 Schalter Switch 1
8 10997153 Schraube 4x16 Screw 4x16 2
9 10998726 Elektronikein.230V Electroni.unit 230V 1
10 10997152 Schraube 4x8 Screw 4x8 4
11 10997110 Bürstenfeder Brush spring 2
12 10997149 Bürstenhalter Carbon brush holder 2
13 10997130 Isolationsplatte Insulationplate 2
14 10997107 Kohlebürste Carbon brush 7 x 17 x 17 2
15 10997155 PT-Schruben Linsenkopf KA40x6 Panhead machine screw M4 x 6 2
16 10998727 Motorgehäuse Motor housing 1
17 10997124 Grihälfte rechts Handle half-right 1
18 10997125 Grihälfte links Handle half-left 1
19 10997089 LED Kontrolllampe Led indicator light 1
21 10997133 Sauganschl. Halter lks Carbon cap 2
22 10978838 PT-Schr K40x12 Lins. A2 PT-screw K40x12 lens A2 2
23 10980203 PT-Schr K40x25 Lins. PT-screw K40x25 lens 6
24 10997072 Schraube 4x50 Screw 4x50 6
25 10997090 Führungsrollen kpl. Guide rollerassy. 1
26 10998728 Magnetgehäuse 230 V Stator 230V 1
27 10998729 Schraube 5x90 Screw 5x90 2
28 977201 Rillen-Kugellag. 6200-2RS Gr. ball bear. 6200-2RS 1
29 10998730 Lüfterkragen Fan shroud 1
30 10998731 Anker 230V Armature 230V 1
31 979495 Ril-Kugellag. 6202-2RSRC Gr. ball bear. 6202-2RSC3 1
32 10997121 Spiralkegelritzel z6 Spiral bevelpin. 6T 1
33 10997160 Klemmscheibe Star washer 1
34 10998732 Erdungskabel Groundwire 1
35 10998733 Crimpverschluss Crimpcapconnector 1
36 10997092 Getriebegehäuse Gearhousing 1
37 971627 Federring M5 DIN 127A Spring washer M5 DIN 127A 10
38 10998734 Schraube 5x45 Screw 5x45 2
39 10998735 Schraube 5x50 Screw 5x50 2
40 10997097 Spindelarretierknopf Spindle lock button 1
41 10997111 Feder Ø0.9xØ7.4xØ9.2 Sping Ø0.9xØ7.4xØ9.2 2

20
NO. TYROLIT No. Name Parts Name Q'TY
42 10997112 Spindelarretierung Arbor lock 1
43 979472 Nadellager NK 12/12 Needlebearing NK 12/12 1
44 10997120 Kegelrad z37 Bevelgear 37T 1
45 10997109 Spindel Spindle 1
46 10997076 Wellenkeil 5x5x10 Shaftkey 5x5x10 2
47 972016 Seegering Bohr. Dm 62 Circlipboredia 62 1
48 10997078 Rillenkugellager 6206 ZZ Gr. ball bearing 6202 ZZ 1
49 10997093 Gehäusedeckel Gearplate 1
50 10997113 Feststellhebel L-clevispin 1
51 10997075 Sicherungsscheibe Ø5 BS E-clip dia 5 1
52 979275 Inbus-Schraube M5x25 Socket screw M5x25 4
53 10997138 Dichtung Ø25xØ35x5 Oilseal Ø25xØ35x5 1
54 10997150 Filzscheibe Ø25xØ35x2.5 Felt oil.Ø25xØ35x2.5 1
55 10997141 Gummiabdeckung Ø75xØ91x4 Rubber fen.Ø75xØ91x4 1
56 10997101 Kunststoring Plastic ring 1
57 10998736 Blattschutz Blade guard 1
58 10997133 Sauganschl. Halter lks Dustport bracket-left 1
59 10997140 Sauganschlussdeckel Dustportplug 1
60 10997158 Scheibe Ø4xØ10x1 Flat washerØ4xØ10x1 1
61 10997067 PT-Schr K40x10 Lins. A2 PT-screw K40x10 lens A2 1
62 10997118 Klammer Clip-female 1
63 10997126 Blattschutzbürste Blade guardbrush 1
64 10997127 Sauganschluss Dustattachment 1
65 10997134 Sauganschl. Halter rts Dustport bracket-right 1
66 10997091 Spritzschutz Splashguard 1
67 10997085 U-Rohr U tube 1
68 10997117 Drahtschlauchklemme Wirehoseclamp 1
69 10997156 Schraube 4x16 Screw 4x16 6
70 10997084 Wasserdüse kplrts Waternoz.assyrgt 2
71 972209 O-Ring 4.00x1.50 N 70 O-ring 4.00x1.50 N 70 3
72 10997061 Wasserdüse kpllks Waternoz.assylft 1
73 10998737 Blattschutz Seite Blade guardside 1
74 971679 Inbus-Schraube M4x12 Socket screw M4x12 7
75 10998738 Schlauchschutz Hose sheath 1
76 10998739 Wasserventil Set Waterfeedval.set 1
77 10997145 Wasserkupplung Watercoupling 1
78 10997146 Wasseranschl.nippel Fitting 1
79 10997129 Schlauchverbinder Hose joiner 3
80 10997157 Kabelbinder perlf. Beadedcabletie 1
PARTS LIST