Twin Saw CDC 2530 User manual

Manual TwinSaw CDC double cut saws
Content
Chapter Content Pa
g
e
EU-Declaration of Conformati
y
2
Safety hints of Manual 3
S1 Owne
r
-operator responsibilities 3
S2 General safety measures 3
S3 Approved operators 4
S4 Hazards 4
S5 Caution 4
S6 Contact for safety issues 4
1. Technical characteristics and insert 5
1.1 Technische Merkmale 5
1.2.1 Einsatz in Rettun
g
5
1.2.2 Einsatz in Industrie 5
2. Parts dia
g
ram of the CDC-sa
w
6
2.1 Gearbox unit 6
2.2 Handle and electronic 6
2.3 Motor housin
g
7
2.4 Pump
g
rip 7
2.5 Lubrication 7
3. Technical data and fi
g
ures 8
4. Saw blades 9
4.1 Blade types 9
4.2 Hints for re
g
rindin
g
the saw blades 10
5. Handlin
g
10
5.1 Handlin
g
of the saws 10
5.2 Preparin
g
the machne 10
5.3 General hints of handlin
g
11
5.4 The cuttin
g
11
6. Checklist servicin
g
12
7. Blade chan
g
e13
7.1 Bolted system Ø 235 mm 13
7.2 Quic
k
-release system Ø 310 mm 14
7.3 Chan
g
e from CDC 2530 to Trainin
g
set CST 225 14
8. Problems, causes and remedies 14
Our main offers 16
Congrationlations on your purchase of a double cut saw!
You have chosen the most reliable and most powerful mechanical-separation system
currently available. This operating manual will help you familiarize yourself with the new
cutting process. Please take time to read through the manual before using the machine for
the first time. Our experience with previous saw systems has taught us a lot. Extensive
customer feedback has helped us draw up the specifications for a new generation of power
saws and these have been incorporated into the CDC model range. Countless training
sessions have taught us the tricks and tips that the user needs to know and these have all
been included in the new manual. TWINSAW is the registered trade-name of TwinSaw
Werkzeuge und Geräte GmbH/ Herten. The pace of technological innovation means that we
reserve the right to make technical changes to equipment and accessories without notice.

Manual TwinSaw CDC double cut saws
-2-
EU Declaration of Conformity
The importer and manufacturer TwinSaw Werkzeuge und Geräte GmbH
Lippestrasse 10
D- 45701 Herten
herewith declares that the following
machines: TwinSaw CDC Type 2224 Serial numbers: 22240000 – 22249999
TwinSaw CDC Type 2530
Serial numbers: 25300000- 25399999
meet the safety standards and
general requirementsof the following
EU Directives:
(89/392 EWG) (73/23 EWG)
EN 50144-1 : 1995
EN 50144-2-5: 1996
As based on the harmonised
standards: VDE 0740 / 205.
The above machines comply with the technical test requirements laid down in manufacturers’
guidelines ISO 9001 and following. The individual tests carried out during and after
manufacture meet all relevant international criteria.
The Declaration of Conformity is rendered invalid by design modifications that affect the
technical data given in the operating instructions and alter the way in which the equipment is
to be used, i.e. fundamental modifications to the machine.
Herten, October 2004
Managing director
———————————————————
Klaus Rawert

Manual TwinSaw CDC double cut saws
- 3 -
Security advices to this manual
Foreword
TWINSAW is the registered trade-name of TwinSaw Werkzeuge und Geräte GmbH/ Herten.
The pace of technological innovation means that we reserve the right to make technical
changes to equipment and accessories without notice.
S1 Owner-operator responsibilities
TwinSaw tools are designed and built on the basis of risk analyses and in compliance with
applicable (harmonised) CE/EU/DIN standards and other relevant technical specifications. The
equipment is manufactured to the highest technical standards and is designed with maximum
safety in mind.
However, workplace safety can only be maintained when all necessary safety measures are in
place. It is the responsibility of the owner-operator of the sawing equipment and accessories
to organize these measures and to ensure that they are being properly implemented.
The owner-operator must ensure that:
othe saws and accessories are always in proper working order and safety equipment is
regularly checked
othere is a sufficient supply of protection equipment available for saw operators, servicing
and repair staff and that this safety equipment is properly used
oa full set of operating instructions is always available at the workplace and is maintained
in a legible condition
opersons operating, servicing and repairing the saws and accessories are properly trained
and authorised to do so
osaw operators and servicing staff are given regular instruction in all matters relating to
workplace safety and enironmental protection and are fully aware of the operating
instructions and safety requirements
osafety and warning notices are never removed from the equipment and remain legible at
all times.
S2 General safety measures
Keep the workplace clean
An untidy workbench or dirty workplace increases the risk of accident.
Pay attention to the workplace environment
Never expose electrical equipment to damp or wet conditions. Always ensure that the
workplace is properly lit. Do not operate power tools in the vicinity of flammable gases
or fluids.
Protection from electrical shock
When the equipment is switched on avoid skin contact with grounded objects
Always wear protective gloves and prescribed rubber-soled footwear.
Unauthorized persons
Do not allow unauthorized persons to approach the workplace (within range of the saw
cuttings) or stand close to the electrical connections.
Keep your tools safe
Keep the saws dry and do not place them on the floor. Always use the transport/storage
cases supplied with the equipment.
Avoid overload
Saws must only be used for the purpose for which they were intended and in
accordance with operating instructions.

Manual TwinSaw CDC double cut saws
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Wear suitable clothing
Do not wear loose-fitting clothing or jewellery, which can can restrict movement and
result in accidents. Long hair should be tied back or put in a hair-net.
Eye and ear protection
Always wear safety goggles or a safety visor and use ear-plugs or ear defenders in
accordance with relevant industrial safety provisions.
Power supply
Never hold the saw by its power cable. Never remove the plug from the mains socket by
pulling on the lead. Protect the power cable from oil, heat and sharp objects. Damaged
cables should be replaced immediately by a qualified person. It is strictly prohibited –
and extremely dangerous - to attempt to "repair" the power cable.
Caring for your saw
Keep the saw clean at all times. Check the power tool, connecting cables and
accessories for damage. Wipe away grease and oil. Ensure that accessory items such as
saw blades are renewed when necessary and have damaged or worn parts replaced by
authorized persons or at a workshop. Always follow the maintenance instructions laid
down in the operator’s manual.
Power extension leads
Only use approved extension leads and ensure that they are always of sufficient length.
Check that the wire section is of the correct size. Never use leads that are damaged or
have been "repaired".
Working Position
Always keep a proper footing and balance so that the saw can be held firmly at all
times.
S3 Approved operators
The saw must only be operated by properly trained and authorized persons. Maintenance and
repair work must be undertaken in a workshop or by approved technicians.
Personnel must receive regular instruction on the aspects of workplace safety and
environmental protection. The operating manual, and especially its safety instructions, should
be readily accessible to operators at all times.
S4 Hazards
Using the saw in its standard form for emergency rescue work, for example, requires special
care on the part of the operator. There is a risk of injury from the rotating blades and from
falling debris. Persons not wearing safety goggles or a protective visor are at serious risk of
eye injury due to flying swarf and saw chips. Care is also needed when replacing the saw
blades, which have very sharp carbide-tipped teeth.
S5 Caution
The TwinSaw CDC power saw is a new type of high-performance tool. Treat it with respect.
Only use original TwinSaw replacement parts and accessories. Fitting non-approved parts is
potential dangerous and can lead to serious injury. The use of non-approved or non-original
spares or accessories will invalidate all guarantees and waranty claims.
S6 Contact for safety issues
If you have any questions relating to safety and the correct operation of the power saw
please contact us or our agents on: [phone] or mail us at:
[e-mail]

Manual TwinSaw CDC double cut saws
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1. Technical characteristics and insert
1.1 Technical characteristics
The TwinSaw CDC-double cut saws are operating with an electronic motor, the CDF-saws are
operating with fuel. They have two counterrotating blades that have the same size. Because
of the particular form of the gearhead unit the saw blades are rotating in opposite direction
with the same speed. They serve the EN norms for electrinic tools. Because of its form and
handling they are more similar to a chain saw than to a circular saw. Because of the
counterrotating saw blades the technique has got much famous properties:
-cold cuts: =sharp cuts needed by cutting materials with high sensivity to
temperatures like aluminum, lead, asphalt, tar and others
-recoil free cuts: without jamming the saw blades and the resulting kicks of the
machine. Much more security both for operator and for material especially when he
makes free cuts in close situations
-high performance cuts: are necessary by entering smooth and tough surfaces
The saws are cutting with 3-4 times higher cutting speed than normal circular saws
and 2 times faster than angle grinders
-variable materials, like combination of materials like wood, steel, GFK, unite-
mateial etc. Very unique and versatile cutting in almost any situation
-effective drive performance: here are working two one-blade-saws in
outperforming synergy.
-cuts with no burrs: By pinching sharp edges can arise. But the double cut saws
make edges with nearly no burrs.
Further characteristics you can see at our Info-CD-Rom and our homepage.
1.2.1 Insert in rescue
In rescue the double cut saws have now far reaching insert possibilities, because also in
difficult situations they make possible high performance cuts. On by they offer high safety
both for rescuer and also the victim. Espacially when you have to enter in surfaces and
smooth edges, the saws have to be used. They are also suited for the completement of
hydraulic systems. Further insert recommendations you can see at our training-CD-Rom.
1.2.2 Insert in industry
The aqpplication variety of the double cut saws in industry and professional manufacturing is
growing up every day. Cold cuts with no burrs and no kick back that are flexible by hand-
cutting have tremendous advantages many industry-areas. Now some examples:
A) Roof construction: cutting of roof layers with bitumina and asphalt, cutting
copper sheets and a lot of other materials
B) Construction of metal buildings: Cutting of metall sheets, isolated and non
isolated, cutting window and door openings into metal buildings very cold
without rust
C) Destruction branches: cutting of all materials except concrete in almost any
situation with only very poor sparks
D) Nuclear technology: cutting lead and other special isolation materials
E) Vehicle maintenance and repair: cutting off damages with perfect edges
for rebuilding
Using the machines in industry, see the special regulations by your safety regulation authority
concerning safety clothes, masks and ear protection.

Manual TwinSaw CDC double cut saws
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2. Parts diagram of the CDC-saw
CDC 2530 with special-blades CSM 235
2.1 Gearbox unit
The drive-shaft (A) from the electric motor drives the
two pinions B and C.
Pinion B runs on the inner shaft,
while pinion C runs on a hollow outer shaft that
encloses the inner shaft. The gearbox is greased for
life and requires no further lubrication.
Do not attempt to dismantle the gearbox and do not
expose the gear shafts to sudden shock loads, as
this can cause imbalance that will eventually destroy
the gearbox. If the inner shaft has to be struck for
any reason, ensure that a block of wood is placed
beneath it (refer to "Blade changing – 235 mm
blades", Section 7.1).
gear box
For technical assistance call us directly on ([phone]).
2.2 Handle and electronic
The black control unit contains the electronics pack, the main switch and the mechanical lock-
switch. The latter must be depressed before the main switch can be operated. The
electronics pack is contained in the front section of the control unit.
The motor has an electronic control system. The electronics not only protect the motor from
overload but also provide smooth start-up and braking of the machine. When the main switch
is released the electronic system quickly brings the motor to a standstill. Abrupt braking is
technically impossible, as this causes sudden loading that would eventually result in damage
to the gearbox. The single-speed electronic control is set at 1900 min-1/ rpm for both saws.
The waveform run-up to full speed is quite normal. In this way the electronic system
eliminates the current peaks that usually occur when starting-up an electric motor. Electronic
control reduces the start-up current to about 12 A (without electronic control the start-up
current level would be around 18 A).
Handle and electronic Pump grip
Motor housing
Saw blades
Gearbox unit

Manual TwinSaw CDC double cut saws
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2.3 Motor housing
The twin-saw system has clear advantages when it comes to cutting efficiency and requires
about 40% less energy than two single-blade saws of similar size. As the twin-saw machine
has to accommodate a much more powerful motor than the single-blade system, but in the
same size of motor housing, there may be an increasd heat build-up when cutting tough
materials and when making deep incisions.
In heavy cutting work avoid overloading the machine through motor overheating. Using the
power saw in short bursts will give the motor time to cool down.
2.4 Pump grip
The pump grip shown in the Figure acts both as a front
hand-hold and as a reservoir for the lubricant. The grip is
attached to the gear unit by an M14 bolt. The bolt must
not be over tightened, as this can damage the thread. A
certain amount of force is required to remove the
aluminium plug beneath the unit in order to top up/refill
with oil.
The elbow fitting should be hand-tight on the inner thread
of the internal shaft at the rear of the machine. Do not
overtighten. The hose consists of a special oil-resistant
material. A damaged pump unit must always be replaced.
The TwinSaw company and its agents always have
replacement pumps in stock.
To initiate pumping depress the plastic nipple on the top of the
unit. Lubricants are now bio-degradable. This means that
biological breakdown begins inside the pump and overlong
lubricant retention leads to bacteria build-up and sludge
formation. The pump unit should therefore be completely emptied
and refilled now and again.
Depress the pump button to supply lubricant when cutting metals.
Continuous lubrication is especially important when cutting soapy
materials in order to prevent cold welding. Always use the correct
oil.
2.5 Lubrication
Cool + is a suitable cutting fluid and lubricant for almost 95%
of materials, the technology is able to cut. It is delivered with the
sets and should used with every cuts.
For normal metals pump at the rate of one or two times a minute and for
aluminium, lead and bitumen pump every 5 seconds.
The lubricant is forced from the hand-grip down the hose and along the inner shaft before
penetrating between the saw-blades. Centrifugal force then slings it towards the outer blade
zones. This pump system produces an 80% saving on lubricant compared the external
lubrication method.

Manual TwinSaw CDC double cut saws
-8-
3. Technical data and figures
Machines
Adamant 2747 (old machines) CDC 2224 CDC 2530
Output
2700 Watts 2200 Watts 3000 Watts
Rated current/ start-up
current
12 A/16 A 9 A/ 12 A 14 A/ 18 A
Mains voltage/-
frequency 230 V 50/60Hz 230 V 50/60Hz 230 V 50/60Hz
Electronic soft-start
No Yes Yes
Electronic rapid-start
No No No
110 Volt, 120 Volt, 150
Volt
NOT Avaliable Available Avaliable
Weight in kg (incl.
Blades)
10,5 10,5 11,8
Lenght/ height/ width
712x255x160 712x 255x160 750x330x170
Cable lenghts
2,5m 2,5m 2,5m
Certification
CE CE, CCC, TÜV/GS, UL CE, CCC, TÜV/GS, UL
Pump system
Hand-grip Hand-grip Hand-grip
Blade attachment
Bolted Bolted Quick-release system
Blade diameter
Ø 235 mm Ø 235 mm Ø 310mm
Cuttingdepth = cutting
reach
65 mm 65 mm 101 mm
Vibrations
3,4 kg/cm² 2,6 kg/cm² 2,8 kg/cm²
Noise level
86 dBA (5m) 71 dBA (5m) 78 dBA (5m)

Manual TwinSaw CDC double cut saws
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4. Saw blades
Apart from the gearbox, the most unusual feature of the counter-rotating twin-saw system is
the arrangement of the saw-blades. The special blades used on twin-blade saws have two
different sides. The outer face, i.e. the side that faces away from the companion blade, is
smooth and the teeth jut out from the blade disc. The inner face, by comparison, is patterned
with radial webs and grooves and the flanks of the saw teeth are flush with the blade disc.
These special blades are very expensive and are the product of a highly-skilled production
process.
Never fit non-approved blades. Only the original items can provide the precision, running
characteristics and stability required for counter-rotating twin-blade saws. Never use abrasive
blades or grinding blades, whose speed is too low for friction sawing.
The twin-saw system is not intended for use as a single-blade saw. The geometry of the
special blades makes them unsuitable for single-blade cutting. Fitting non-approved single
blades can seriously damage the adapter system and this will in turn impair the function of
the entire machine.
The saw blades do not cut concrete or concrete-similar materials.
4.1 Blade types
CSM: normal range type for almost all tasks
CSM 235 for CDC 2224/CDC 2530
CSH- Blades: For special tasks light
very hard steel and for those materials,
which are sensible for cutting like lead,
aluminum, bitumina (roof tar layers) and
high performed steel. The Titanium coating
hardens the surface and closes it for glueing
materials. Picture left: CSH 310.
CSM 310 with quick change for CDC 2530

Manual TwinSaw CDC double cut saws
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CST 225 blades: these blades are used for training and light industrial tasks. They are much
cheaper than the rescue blades and so reduce the cost of the needed training courses.
With the special Training Set you can use
these pricy saw blades on the large saws,
too.
4.2 Hints for regrinding the saw blades
The special blades of the double cut saw will be
regrinded in another way, not like normal saw
blades that are used at circular saws. So please
give the saw blades only in pairs to the grinding shop.
Make sure that the grinding shop has got the exactly grind instructions and so it is
zertificated. (also look at the following picture)
http://www.twinsaw.de/schaerfanweisung.htm
5. Handling
5.1 Handling of the saws
Store the machine in a dry, clean place. Build-up of dust and moisture on the motor windings
can eventually lead to current leakage and this will cause damage to the motor. Never store
the machine in such a way that it rests on the blades.
Store the machine so that the user can pick it up by the front hand-grip when removing it
from the storage case or mounting point.
Ensure that all accessories are kept tidy and within easy reach.
Allow plenty of time when re-ordering consummables such as blade mounting bolts and
lubricant!
5.2 Preparing the machine
The machine is low-sparking – but it is not spark-free. It must not be used if there are
flammable gases or liquids (e.g. petrol spillages at accident scenes) present nearby.
The air vent allows access to the electric motor. In heavy rain a cover should be used to
protect the saw and operator.
Make sure that the mains plug is not connected to the power supply.
Grasp the machine by the front hand-grip and remove from the case or mounting point,
keeping the blade end away from the body.
Check that the power cable is neatly contained alongside the machine.
Check the following:
The blades are tight and in good working order, Spare blades are available
There are no obstructions between the blades
There are no signs of external damage, dirt or moisture
The air filter inlets are clear
The mains supply/ generatoris of the correct rating
The 230 Volt machine is protected by a current breaker with a slow 16A fuse
Place the machine on its side or with the blades uppermost and insert the plug into the
power supply socket
Allow the machine to start-up for about 10 seconds and listen for any unusual noises.

Manual TwinSaw CDC double cut saws
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5.3 General hints of handling
Adopt a safe and stable stance before attempting the use the machine.
Remember: do not use the machine to help maintain your balance, as is done when using a
hand-held circular saw. This will twist the blades and cause them to separate and possibly
jam the machine.
Think for a few moments about where you want to make the cut and how long the first cut
should be. Discuss this with other members of the team.
Avoid cutting through bolts, pins, safety-belt mounting points, arrestor units, etc. as far as
possible. This places much greater stress on the cutting edges and can result in chipped and
broken teeth.
Sparking tends to increase as the blades become worn. If there is a high level of sparking
when cutting light metal plate the saw-blades should be examined. Worn blades will usually
reduce the cutting performance of the machine.
Remember that saw chips are ejected form both sides of the machine. Warn other members
of the team to stay out of range of flying chips.
The machine can cut backwards as well as forwards!Use this advantage to good effect.
You will have more energy at the beginning of the cutting operation than at the end. When
cutting into a car bonnet, for example, start off as far out as possible and bring the saw back
towards you. Do not use these saws for medium-duty cutting/rescue/salvage work. It is more
efficient to use other power tools to cut into flat surfaces and make longer cuts. Use the saw
to cut away panels and covers to provide access for heavy-duty equipment such as cylinder
cutters and shears. Cut slowly when the material contains bolts or rivets.
If increased resistance is encountered when performing dismantling or rescue/salvage work
the cut should be re-started. Cut slowly and steadily, as when using domestic DIY tools. This
will help save on blades and give you many years of enjoyment from your machine.
5.4 The cutting
Ask your distributor for our special schematic course tabulars. They offer in a very clear form
the main advices for the cutting. Here in short words:
1. Always cut in a modus of PUSH AND RELEASE:
a. at cutting into surfaces
b. at cutting in massive materials
c. at cutting in thin metal sheets
With this handling you make sure the best performance in cutting. Additionally this will
give you a long life eather for the saw and for for the saw blades.
2. When cutting in an angle to the surface, keep the saw tight. Be aware that the saw
is working with only one blade in the first moment. So there will be a reaction.
When the second blade has entered the material, the reaction will vanish and you
will cut reaction free. Do not forget the short release after etering the material.
3. Lubrication is needed at any material and any kind of cutting. It reduces the
grinding between the saw blades and offers you an even colder cut. It is sufficient
to press the button at the top of the handle for only 2-3 times before normal
material cutting operations. Soapy material like tar or aluminum needs permanent
lubricant between the blades. Ohterwise the blades will be damaged!
For more than 95% of rescue operation your normal set will offer you a very handsome and
uncomplicated handling. Enjoy the high speed of ultrasharp and cold cutting without too
much concnetration on the machine itself. With a little practice and experience the saw will
be like your prolongered arm.

Manual TwinSaw CDC double cut saws
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6. Checklist Maintenance
Check that the main components are in proper
working order
Pull out the power plug after removing the saw-
bades.
O
K
Not OK Order
Checkin
g
the
blades Dirt on and between the blades
Checkin
g
the
teeth Broken teeth: if more than 2 teeth are missing => send for repair
If more than 6 teeth are missing =>
order new blades
If teeth have become rounded: poor
cutting – have teeth sharpened
Checkin
g
the
blade mounting
bolts
Worn bolt heads - do up more ti
g
htly
next time
Replace bolts on both sides
Checkin
g
the
adapter Dirty/soiled Damaged
Spline fit good or loose
Bent spline
Machine Place one drop of oil on the threaded
journal to prevent corrosion
Start motor – does it sound OK?
Motor jerky at start-up – send for repair
Safety fuse blown – send for repair
External damage; soiled; damp
Date/approval test
Air filte
r
Blocked?
Dirty filter: pull out power plug, remove
filter and blow clear
Do not use sharp implements to force
open the motor housing or hand-grip
Main switch Check that safety switch is fitted and is
in good condition
Power cable Check for dama
g
e to power cable and
plug
Pump Fillin
g
level: contents?
Dirt in pump?
Is plug oil-tight?
Is elbow joint (machine) oil-tight?
Is hose (machine) in good condition?
Is pump nipple in good condition?
Safety cove
r
Bent? Re-strai
g
hten
Torn or ripped? Order replacement

Manual TwinSaw CDC double cut saws
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7. Blade change
7.1 Bolted system Ø 235 mm
Machines: Adamant 2747 – CDC 2224 - CDC 2235
Remember that carbide teeth are extremely sharp.
Always wear gloves when undoing and tightening
Before your hands are near the teeth or even the
blades:
REMOVE THE POWER PLUG!
Legen Lay the machine on ist side.
Remove the main nut using the special tool or a 19 mm wrench.
The blades have to be locked into position by using the lock-button
or inserting the blade of a screwdriver through two aligned holes to
prevent movement.
Once the main nut is removed it is possible to see the inner shaft,
the outer- blade drive spline and the outer blade adapter, to which
the outer blade is bolted. The latter can now be detached along
with the blade.
As the spline and adapter are machined to very fine tolerances it
may not be possible to free the adapter by finger force alone. The
adapter can be released either by using the special extshould be
positioned centrally above the shaft and then inserted into the slot
in the adapter, or by striking the whole machine with its inner shaft
against a block of wood. This must be done very carefully and on
no account use anything other than wood, otherwise there is a risk
of damage to the shaft, thread or gearbox.
After the outer blade system had been detached the three mouting
bolts holding the inner blade can be removed using the 3 mm Allen
key provided.
Examine the bolts and replace any whose heads have become
rounded.
Once the bolts have been removed the inner blade can be
withdrawn.
The outer blade can now be detached from its adapter by removing
the three bolts with the Allen key.
Note the position of the blade with respect to the adapter. Both
adapter discs are fixed to the outer face of the blade. The heads of
the mouting bolts must lie flush in their recesses, otherwise they will
collide when the saw is rotating.
Never use bolts other than the original replacement items. The two adapters are matched to
an accuracy of 1/1000 mm. If the thread on one is damaged, both adapters must be
replaced. Otherwise the entire gearbox unit may have to be renewed. It is better – and much
cheaper – to order a new set of bolts from us.
Inspect the adapters for damage and dirt ingress.
Check the spline on the outer (loose) adapter for wear and fit. The spline is a potential failure
point and can easily replaced if there is any doubt as to its condition.

Manual TwinSaw CDC double cut saws
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The fitting sequence used for new blades is the reverse of the dismantling procedure. All
bolts should be done-up handtight. Do not overtighten.
7.2 Quick-release system Ø 310 mm
Machine: CDC 2530
Remember that carbide teeth are extremely sharp.
Always wear gloves when undoing and tightening
Before your hands are near the teeth or even the blades:
REMOVE THE POWER PLUG!
Lay the machine on its side! Remove the main nut using the
special tool or a 19 mm wrench.
The blades have to be locked into position by using the lock-
button or inserting the blade of a screwdriver through two aligned
holes to prevent movement.
Remove the outer blade system (saw blade and adapter) from its
shaft and withdraw the blade from beneath the safety cover.
Remove the blade from the adapter by opening the screws a bit
and turning around the blade. When the heads of the screws
have reached the end, you can depart the blade from the adapter
easily.
Examine both adapters (outer adapter shown in Figure) and
ensure that the springs are properly seated on the lock-button.
Wipe the adapters with a clean cloth, if necessary. The fitting
sequence for the new blades is the reverse of the dismantling
procedure.
7.3 Change from CDC 2530 to Training set CST 225
When you have lift off both blades, open the four screws beside the inner adapter, which
hold the hood.
Get the small hood 235 out of the Training set and fix it with the screws to the machine.
After that the outer flange has to be changed, because the training blades do have the
screwed system without bayonet plates.
Fix the small blades onto the adapters and make sure that the screws are fixed tightly.
Then begin operations as usual.
8. Problems, causes, remedies
Problem Cause Remed
y
Machine speed fluctuates durin
g
start-up
The soft-start system produces
waveform acceleration until full
machine speed is reached. This
prevents current peaks during
start-up
No action needed
Machine runs erratically durin
g
normal operation Electronics dama
g
ed Send to servicin
g
department
for repair
Machine falters under low load Gearbox dama
g
e Send machine for repai
r

Manual TwinSaw CDC double cut saws
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Saw-blades separatin
g
Excessive stress on blades Withdraw blades from cut,
check blades for obstructing
material and remove if
necessary. After 10 seconds
re-introduce the machine into
the cut and continue sawing
Crooked cuttin
g
Proceed as above
Tired blades due to frequent
separations Replace blades and send for repair
3 to 4 chipped teeth Not cuttin
g
strai
g
ht Check blades for
chipped/fractured teeth;
continue to cut slowly, steadily
and in a straight line
Several teeth broken Material bein
g
cut chan
g
in
g
from
hard to soft; cutting too quickly Replace blades that have more than 4 broken teeth and send
damaged blades for repair
Low-quality blades Check that ori
g
inal blades are
fitted
Increased stream of sparks Cuttin
g
is not strai
g
ht Keep cut strai
g
ht
Worn blades Send blades for re-sharpenin
g
Tou
g
h material
Check sawn material and discontinue sawing if
necessary; examine blades and
send for re-sharpening, if
required
Cuttin
g
performance severely
impaired Worn blades Replace blades and send for re-sharpening
Blades
j
ammin
g
when rippin
g
in
wet wood Discontinue sawin
g
; check
blades for obstruction
Machine
j
erks and kicks bac
k
Cut not strai
g
ht Pull out of cut and slowly start
a new cut
Blades separatin
g
Check blades and take
appropriate steps as described
above
Gearbox dama
g
e Send machine for repai
r
Outer adapter and blade cannot
be separated Drive spline
j
ammed Remove main nut and
g
ently
tap machine against a wooden
block until adaper and blade
are free Use blade extractor, if
available
Forei
g
n body
j
ammed between
blades Remove obstruction. Use blade extractor, if available
Smoke issues from between the
blades when the machine is
operating
Blade mountin
g
bolts have
become loose Remove blades and replace bolts
Rattlin
g
sounds comin
g
from the
machine Blade mountin
g
bolts have
become loose Remove blades and replace bolts

Manual TwinSaw CDC double cut saws
- 16 -
Our main offers:
Art.-Nr. Product description
1 2224 010 TwinSaw CDC 2224 Basic Set
Saw, 1 Pair Special bladesn CSM 235, Assecories
1 2224 020 TwinSaw CDC 2224 Rettungsset
Saw, 2 Pair Special bladesn CSM 235, Assecories
1 2224 080 TwinSaw CDC 2224 Combo Training
Saw, 2 Pair Special bladesn CSM 235, Assecories
2 Pair Training blades CST 225, Course schedule and information
1 2530 010 TwinSaw CDC 2530 Basic Set
Saw, 1 Pair Special bladesn CSM 310, Assecories
1 2530 020 TwinSaw CDC 2530 Rettungsset
Saw, 1 Pair Special bladesn CSM 310, Assecories
1 2530 080 TwinSaw CDC 2530 Comboset
Saw, 1 Pair Special bladesn CSM 310, Assecories
Training set CST 225 with small blade hood, flat flange and 2 pairs
training blades CST 225, Course schedule and information
Please see our Distributor list on the CD, which you can get at your distributor for free.
Do not miss our offers for the gasoline driven saws:
They will expand your skills and performance by netfree working.