ROKAMAT Hedgehog W User manual

1) Rokamat Hedgehog W (22IGC0093)
2) 2014/30/EU, 2006/42/EG, 2012/19/EU, 2011/65/EU,
2001/95/EG, EG No. 1907/2006
3) EN 62841-1:2015/AC:2015; EN 62841-2-4:2014/AC:2015;
EN ISO 12100:2010-11
4) Kammerer GmbH | An der B 10 | D-75196 Remchingen
Remchingen, 20.01.2022
Beate Kammerer
Head of Technical Documentation
EN
Original Instructions
3
Hedgehog W
Art.-Nr. 69600
© Kammerer GmbH. Printed in Germany. Abbildungen unverbindlich.
Technische Änderungen vorbehalten. BA_Hedgehog W_EN_001
ROKAMAT
Kammerer GmbH
An der B 10
75196 Remchingen
Deutschland
www.rokamat.com

Hedgehog W
2
[1]
2-2
1-4
1-1
1-5
I
0
[4]
[2]
[3]
1-2
[5]
[7]
[8]
2-1
6-1
5-1
5-2
5-3
5-4
9-1
[9]
[6]
7-1
8-1
8-3
4-1
3-1
1-6
1-8
8-2
1-9
1-3
7-2
1-7
7-3
7-4
7-5
6-2

Hedgehog W en English
3
1. Symbols ......................................................................... 3
2. Safety Instructions .................................................... 3
3. Intended Use ................................................................4
4. Technical Specifications ..........................................4
5. Device Components...................................................4
6. Commissioning............................................................4
7. Instructions for Use...................................................4
8. Working with the Power Tool ................................ 5
9. Maintenance and Care.............................................. 5
10. Spare Parts and Accessories.................................. 5
11. Environmental Protection....................................... 5
12. Declaration of Conformity....................................... 6
13. Troubleshooting ......................................................... 6
For your own protection and for the protec-
tion of your power tool, pay attention to all
parts of the text that are marked with this
symbol!
Risk of electric shock!
Read operating instructions and safety no-
tices! *)
Wear protective goggles! *)
Wear ear protection!
Disconnect from the power supply!
Two-hand operation. *)
Do not dispose of as domestic waste! *)
Important advice/information
Safety class II *)
~ Alternating current *)
Confirms the conformity of the power tool
with the directives of the European Com-
munity. *)
Confirms the conformity of the power tool
with UK legislation. *)
*)These symbols are (also) on the device.
For your safety
Read all safety warnings and instructions.
Failure to follow all safety warnings and in-
structions may result in electric shock, fire
and/or serious injury.
Do not use this power tool before you have
thoroughly read and completely understood
this Instruction Manual and the enclosed
“General Safety Instructions”.
Keep all safety instructions and information for
future reference. Pass on your power tool only to-
gether with these documents.
Please also observe the relevant national industrial
safety regulations.
Special Safety Instructions
Safety Warnings common for Grinding, Sanding
and Polishing Operations:
a] This power tool is designed to be used as a
sander (with sandpaper) and polisher. Read
all safety warnings, instructions, illustra-
tions and specifications provided with this
power tool. Failure to follow all instructions
listed below may result in electric shock, fire
and/or serious injury.
b] This power tool is not suitable for coarse
sanding, sanding with a wire brush, polishing
and abrasive cutting. Operations for which the
power tool was not designed may create a haz-
ard and cause personal injury.
c] Do not use accessories which are not specifi-
cally designed and recommended by the tool
manufacturer. Just because the accessory can
be attached to your power tool, it does not as-
sure safe operation.
d] 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.
e] 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.
f] Threaded mounting of accessories must
match the grinder spindle thread. For acces-
sories mounted by flanges, the arbor hole of
the accessory must fit the locating diameter
of the flange. Accessories that do not match
the mounting hardware of the power tool will
run out of balance, vibrate excessively and may
cause loss of control.
g] Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for
cracks, tear or excess wear, wire brush for
loose or cracked wires. If power tool or acces-
sory is dropped, inspect for damage or install
an undamaged accessory. After inspecting
and installing an accessory, position yourself
and bystanders away from the plane of the
rotating accessory and run the power tool at
maximum no-load speed for one minute.
Damaged accessories will normally break
apart during this test time.
h] Wear personal protective equipment. De-
pending on application, use face shield,
safety goggles or safety glasses. Where ap-
propriate, wear dust mask, hearing protec-
tors, gloves and workshop apron capable of
stopping small abrasive or workpiece frag-
ments. The eye protection must be capable of
stopping flying debris generated by various op-
erations. The dust mask or respirator must be
capable of filtrating particles generated by
your operation. Prolonged exposure to high in-
tensity noise may cause hearing loss.
i] 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 acces-
sory may fly away and cause injury beyond im-
mediate area of operation.
j] Hold the power tool by insulated gripping
surfaces only, when performing an operation
where the cutting accessory may contact hid-
den 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.
k] Position the cord clear of the spinning acces-
sory. If you lose control of the power tool, the
cord may be cut or snagged and your hand or
arm may be pulled into the spinning accessory.
l] Never lay the power tool down until the ac-
cessory has come to a complete stop. The
spinning accessory may grab the surface and
pull the power tool out of your control.
m] 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.
n] Regularly clean the power tool’s air vents.
The motor’s fan will draw the dust inside the
housing and excessive accumulation of pow-
dered metal may cause electrical hazards.
o] Do not operate the power tool near flamma-
ble materials. Sparks could ignite these mate-
rials.
p] Do not use accessories that require liquid
coolants. Using water or other liquid coolants
may result in electrocution or shock.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush or any
other accessory. Pinching or snagging causes rapid
stalling of the rotating accessory which in turn
causes the uncontrolled power tool to be forced in
the direction opposite of the accessory’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 con-
ditions.
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 po-
sition your body and arm to allow you to re-
sist 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.
b] Never place your hand near the rotating ac-
cessory. Accessory may kickback over your
hand.
1. Symbols
2. Safety Instructions
WARNING!
Contents

Hedgehog W en English
4
.c] Do not position your body in the area where
power tool will move if kickback occurs. Kick-
back 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
or toothed saw blade. Such blades create fre-
quent kickback and loss of control over the
power tool.
Additional safety instructions
Never immerse the machine in water or spray it
with water for cleaning, not even the tool holder!
Keep liquids away from the power tool and persons
in the work area.
Don’t bend the flexible drive shaft!
Bei Ansprechen der Sicherheitskupplung die Ma-
schine sofort ausschalten!
When the safety clutch responds, switch off the
machine immediately!
Do not overload the motor for a long period. Engine
noise should be regular (not wave-like). Unsteady
engine performance can be perceived acoustically.
Take a break when the machine is heated up
strongly and let it cool down again. To that let the
motor idle at top speed for some time.
Ensure sufficient cable clearance. Use only exten-
sion cables permitted for outdoor use.
Emission levels
NOTE! Values for the A-weighted sound pressure
level and for the total vibration values can be found
in the “Technical specifications” table at page 9.
The vibration emission level given in this infor-
mation sheet has been measured in accordance
with a standardized test and may be used to com-
pare one tool with another. It may be used for a
preliminary assessment of exposure.
CAUTION! The indicated measurements refer to
new power tools. Daily use causes the noise and vi-
bration values to change.
The declared vibration emission level represents
the main applications of the tool. However, if the
tool is used for different applications, with differ-
ent accessories or poorly maintained, the vibration
emission may differ. This may significantly
increase the exposure level over the total working
period. However, if the tool is used for different ap-
plications, with different accessories or poorly
maintained, the vibration emission may differ. This
may significantly decrease the exposure level over
the total working period.
CAUTION! The noise produced during work
may damage your hearing.
Wear ear protection!
Handling and storage
Operation
Temperature range: +5° C to +50° C
Humidity: ≤ 85 %, non-condensing
Climate: dry
Transport and storage
Temperature range: -5° C to +55° C
Humidity: 0 % to 70 %
Climate: dry, roofed, dew protected
Transport and store the power tool only in the car-
rying case. Before transport or storage, remove
water completely from the machine. Keep the carry
case out of reach of children. Children may suffo-
cate or be strangled when playing with the carry
case.
The hand-held electric tool Rokamat Hedgehog W
is intended for removing of concrete residues on
formwork elements and for cleaning ceilings, walls
and floors in exterior and interior areas
With the Hedghehog W, machining can be per-
formed with water supply via the integrated water
injection. The Hedghehog W may only be operated
in conjunction with a portable residual current
device (PRCD).
The PFM W is intended for use with original ROKA-
MAT tools and accessories only.
Only sufficiently qualified and trained personnel is
allowed to work with the tool. The intended use in-
cludes the observance of the operating instruc-
tions, in particular the safety instructions and the
observance of generally recognized accident pre-
vention regulations.
In case of misuse, the manufacturer is not liable
and warranty claims may be void.
The specified illustrations can be found in fig. [1]
on page 2 of the operating instructions.
1-1 Splash guard
1-2 Gripping surface
1-3 Handle
1-4 Belt
1-5 Mains cable with PRCD
1-6 Motor (with gripping surface)
1-7 Flexible drive shaft
1-8 Flow control valve
1-9 Water nozzle with hose
Unauthorized voltage or frequency!
Risk of accident!
The mains voltage and the frequency of the
power source must correspond with the specifi-
cations on the machine's name plate.
Before each start of work, check the proper op-
eration of the PRCD by pressing the TEST button.
Motor mounting
The motor [1-6] is not allowed to be placed on the
floor during operation, but must be hooked in the
carabiner of the provided belt [1-4] (resp. shoulder
belt).
witching the electric power tool on and off
[2+4]
Switching on: Switch on the PRCD (TEST) [2-1] and
push the sliding switch [4-1] forward. For continu-
ous activation, now tilt downwards until it engages.
Switching off: Switch off the PRCD (TEST) [2-2].
Press the rear end of the slide switch [4-1] and re-
lease it.
Risk of injury, electric shock!
Always pull the mains plug out of the socket be-
fore performing any type of work on the ma-
chine!
Attaching, changing or removing the clean-
ing brushes [5]
- Centre the cleaning brush [5-3] directly on the
driver disc [5-4]. Ensure that both pins on the
driver disc mate with the drill holes in the clean-
ing brush.
- Then turn the clamping screw [5-1] clockwise to-
gether with the rubber washer [5-2] to tighten
them.
Formwork cleaning machine Hedgehog W
Item No. 69600
Rated voltage
230 V AC
Frequency
50 Hz
Power
1000 W
No-load speed
480-1670 min-1
Maximum tool diameter
200 mm
Driver disc
Befestigungs-
schraube M6
Tool holder weight
3,7 kg
Total weight
7,0 kg
Dimension compact
(LxHxW)
1135x200x420 mm
Cable length
5,0 m
Residual current detec-
tion
PRCD (10 mA)
Safety class
II /
A-weighted sound pressure level (see cap. 2
“Emission levels“):
Sound pressure level
LpA
87 dB(A)
Sound power level LWA
95 dB(A)
Uncertainty KpA, KWA
3,0 dB
Total vibration value (see cap. 2 “Emission lev-
els“):
Emmission value ah
< 2,5 m/s2
Uncertainty K
1,5 m/s2
Before switching on the power tool: Unpack
power tool and accessories and check that no
parts are missing or damaged.
6. Commissioning
7. Instructions for Use
5. Device Components
3. Intended Use
WARNING!
WARNING!
CAUTION!
4. Technical Specifications

Hedgehog W en English
5
- Conduct a test run to check that the cleaning
brush is attached in the center.
- Removing in reverse order.
Attaching, changing or removing the clean-
ing pad [6]
- Centre the supporting plate [6-2] directly on the
driver disc [5-4]. Ensure that both pins on the
driver disc mate with the drill holes in the sup-
porting plate.
- Then turn the clamping screw [5-1] clockwise
without the rubber washer [5-2] to tighten them.
- Place the cleaning pad [6-1] in the center of the
supporting plate [6-2] and press on.
- Conduct a test run to check that the cleaning pad
is [6-1] attached in the center.
- Removing in reverse order.
Adjusting the speed [3]
Set the recommended speed at the thumbwheel
[3-1]. (small number = low speed; large number =
high speed).
Water injection [8]
- Connect the water hose [8-1] (not included in the
scope of delivery) to the hose connection [8-2].
Activate water supply.
- Press the handle [8-3 of the lever valve [1-8] to
activate the water outlet.
- Release the lever valve again to stop the water
outlet.
Depending on the position of the lever [8-3],the
water outlet can be regulated. Adjust the water
nozzle [1-9] by bending the hose.
Angle adjustment [9]
- Pull lever [9-1].
- Set the desired angle.
- Release lever [9-1] and allow bolt to engage.
The angle adjustment allows for ergonomic work.
It should also be ensured that the abrasive always
lies parallel on the surface to be worked on.
Handle [7]
- Push in the bolt [7-1] on the bow handle [2-2].
- Move bow handle to desired position.
- Loosen bolt and allow to engage.
Telescopic tube [2]
- Open the clamping screw [2-3].
- Move the telescopic tube [2-4] to the desired po-
sition.
- Lock the clamping screw.
1. Attach cleaning tool.
2. Connect and activate water hose.
3. Attach motor to (shoulder) belt.
4. Insert mains plug.
5. Set required speed.
6. Hold the plaster finishing machine with both
hands at the gripping surfaces.
7. Switch on the device.
8. If necessary, turn the lever of the flow control
valve to activate the water supply.
9. Press the tool disc gently against the work sur-
face.
10. Swing the plaster finishing machine with linear
or circular movements.
After finishing work
Once you have finished the grinding work, set the
power tool down.
Repairs may be carried out by an authorized cus-
tomer service center only.
Check the plug and the cable regularly and should
either become damaged, in order to avoid a hazard,
have them replaced by an authorized customer
service center.
During the warranty period do not loosen the
screws on the housing. Non-compliance will deem
the guarantee obligations of the manufacturer null
and void.
Checking the fluid system for leaks
Check regularly whether fluid leaks from the hoses
when using the tool.
Do not use the tool if the fluid system is leaking.
Remove dust from the motor regularly
It is possible that particles deposit inside the power
tool during operation. This impairs the cooling of
the power tool. Conductive build-up can impair the
protective insulation of the power tool and cause
electrical hazards.
The power tool should be cleaned regularly, often
and thoroughly through all front and rear air vents
using a vacuum cleaner or by blowing in dry air.
Prior to this operation, separate the power tool
from the power source and wear protective glass-
es and dust mask.
Replacement of the flexible drive shaft [7]
Disassembling: On the motor side, press in the
press button [7-3] in the borehole [7-4] with a tool
(e.g. screwdriver) and pull out the protective hose
[1-7]. Now the shaft core can be replaced.
To replace the protective hose [1-7],it must also be
loosened on the side of the tool holder. To do this,
press in the press button [7-3] in the borehole [7-4]
with a tool (e.g. screwdriver) and pull out the pro-
tective hose [1-7].
Mounting: In reverse order. Make sure that the
shaft core is threaded into the square in each case.
Changing the splash guard
The splash guard [1-1] can be removed by stretch-
ing it slightly apart at the overlapping point and
then pulling it off downwards.
Installation in reverse order. Make sure that the
sheet metal angles touch the tool holder. Position
the water nozzle to the opening.
Other accessories, in particular insertion tools, can
be found in the manufacturer’s catalogues. Ex-
ploded drawings and spare-part lists can be found
on our homepage: www.rokamat.com.
Use only original ROKAMAT spare parts and work
tools!
Observe national regulations on environmentally
compatible disposal and on the recycling of dis-
used machines, packaging and accessories.
For Great Britain and EU countries: Never
dispose of power tools in your household
waste! In accordance with WEEE relating
for electrical and electronic waste and im-
plementation of national law, used electri-
cal tools must be collected separately and
disposed of in an environmentally friendly
manner at recycling centers.
Separate the motor from the rest of the
machine before disposal. Make used tools
unusable by removing the mains cable.
Risk of damage to the device!
Risk of injury!
Use only clean water, otherwise the nozzle [9-1]
could be blocked.
Water injection may be used only for moistening
suitable surface!
A maximum of 5 bar is permissible for the fluid
system.
The hose connection [8-2] is suitable for con-
ventional hose connectors.
Risk of damage to the device!
Do not set the power tool down with the tool
disc facing downwards!
Risk of injury, electric shock!
Always disconnect the mains plug from the
socket before performing maintenance work on
the machine!
Risk of damage to the device!
Never immerse the disc-holding in water or
spray it with water to clean it!
Risk of damage to the device!
The two boreholes [7-4] for the push button
[7-3] at the drive shaft serve as length adjust-
ment between shaft core and protective hose.
The shaft core should be freely movable in
length and must not get compresse!
Check all wearing parts once a month.
Please ask your dealer about disposal options!
9. Maintenance and Care
8. Working with the Power Tool
10. Spare Parts and Accessories
CAUTION!
11. Environmental Protection
CAUTION!
CAUTION!
CAUTION!
WARNING!
ADVICE!
CAUTION!
ADVICE!

Hedgehog W en English
6
It is expressly declared that the grinder and pol-
isher listed on the first page under 1) from the serial
number indicated onwards complies with all rele-
vant provisions of the directives or regulations
listed in 2) and that the harmonized standards
listed in 3) have been applied. The technical docu-
mentation is available from the authorized docu-
mentation agent named in 4).
Problem
Possible causes
Remedy
Motor runs, but the sup-
porting plate does not ro-
tate.
Shaft core broken.
Exchange shaft core.
Mitre-gear of the tool holder is
defective.
Replace the mitre-gear with case top.
The electronic signal dis-
play [3-1] lights up and
the load speed decreases.
There is too much load on the
machine.
Run the machine in idling until the
electronics signal indicator switches
off.
The machine does not
start. The electronic sig-
nal display [3-1] flashes.
The restart protection is active. If
the mains plug is inserted with
the machine switched on, or if the
power supply is restored follow-
ing an interruption, the machine
does not start up.
Switch the machine off and on again.
Motor power fluctuates.
Carbon brushes worn.
Replace carbon brushes.
Electronic unit defective.
Replace electronic unit.
Hedgehog W not working.
PRCD not switched on
Switch on PRCD.
Interruption to power supply.
Switch the power tool off and on
again.
Cable break.
Replace mains plug.
Hedgehog W does not run
smoothly over the sur-
face.
Incorrect speed set.
Adjust speed.
Tool discs are not mounted cor-
rectly.
Check the correct fit of the tool discs.
Not optimal cleaning
effect.
Incorrect or worn tool discs.
Select correct tool discs and check
for good condition.
Material to be processed is too
dry.
Moisten material with water.
Water injection does not
work (correctly).
Water supply not connected or
activated.
Connect and activate the water sup-
ply.
Nozzle blocked.
Unblock the blocked area.
Lever valve blocked.
Unblock the blocked point.
Lever valve defective.
Replace lever valve.
12. Declaration of Conformity
13. Troubleshooting
If problems other than those listed occur, please contact your ROKAMAT service workshop or your local
specialist.