Cardi COCCODRILLO35 User manual

1
A
D
B
E
C
2
M
L
G
I
F
H

3
N
I
II
4

5

SERIAL #
7
6

O
R
Q
S
P
8
9

10
10/A
10/C
10/E
10/G
10/B
10/D
10/F
10/H
T
U

11
11/A
11/C
11/E
11/B
11/D
11/F

13
14
12

15

17
16

19
18

20


English 8
Your CARDI electric chainsaw is a power tool designed to perform straight cuts into
concrete, reinforced concrete, stone, using the proper diamond chain and bar. The
product needs sufficient clean water to operate and cool bar and chain through the water
inlet system. Powerful and lightweight, this product is designed to perform finishing jobs
by professional cutters and any kind of contractors. Follow general contractor, local and
national regulations how to dispose of slurry generated during operating the saw.
Operator needs to be properly trained.
Do not use this product to cut wood, plastic or other materials not listed above.
Do not use bars and chains different from the ones defined in this user manual.
In the following text, figures are identified by numbers,
details inside figures by letters. Figures are depicted on the
first pages of this user manual.
1) G
Ge en ne er ra al ls sa af fe et ty yr ru ul le es s
WARNING! Read all instructions. Failure to follow all
instructions listed below may result in electric shock, fire
and/or serious injury. The term "power tool" in all of the
warnings listed below refers to your mains operated (corded)
power tool or battery operated (cordless) power tool.
SAVE THESE INSTRUCTIONS
1) Work area
a) Keep working area clean and well lit. Cluttered
and 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.
2) Electrical safety
d) 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.
e) 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.
f) Do not expose power tools to rain or wet
conditions. Water entering a power tool will
increase the risk of electric shock.
g) 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.
h) 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.
3) Personal safety
i) 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.
j) Use safety gear: always wear eye protection.
Safety equipment such as dust mask, non-skid
safety shoes, gloves, hard hat, or hearing
protection used for appropriate conditions will
reduce personal injuries.
k) Avoid accidental starting. Ensure the switch is
in the off position before plugging in. Carrying
power tools with your finger on the switch or
plugging in power tools that have the switch on
invites accidents.
l) 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.
m) Do not overreach. Keep proper footing and
balance at all times. This enables better control of
the power tool in unexpected situations.
n) Dress properly. Do not wear loose clothing or
jewellery. Keep your hair, clothing and gloves
away from moving parts. Loose clothes, jewellery
and long hair can be caught in moving parts.
o) If devices are provided for the connection of
dust extraction and collection facilities, ensure
these are connected and properly used. Use of
these devices can reduce dust related hazards.
p) Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
4) Power tool use and care
q) 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.
r) 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.
s) Disconnect the plug from the power source
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
t) Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to

9 English

operate the power tool. Power tools are
dangerous in the hands of untrained users.
u) Maintain power tools. Check for misalignment
or binding of moving parts, breakage of parts
and any other condition that may affect the
power tools operation. lf damaged, have the
power tool repaired before use. Many accidents are
caused by poorly maintained power tools.
v) Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting edges
are less likely to >>>> and are easier to control.
w) Use the power tool, accessories and tools etc.,
in accordance with these instructions and in
the manner intended for the particular type of
power tool, taking into account the working
conditions and the work to be performed. Use of
the power tool for operations different from
intended could result in a hazardous situation.
5) Service
x) 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.
2
2) )S Sa af fe et ty yr ru ul le es sf fo or ry yo ou ur rc ch ha ai in ns sa aw w
Earth (Ground)
the metallic parts of your chainsaw earthed. Make
sure that the power supply is properly earthed.
make sure that the socket, extension cords and
multiple sockets you use, have the earth
connection.
Warning: for your safety, it is important
that the whole system (electrical system,
extension cords, sockets etc.) is connected
to the earth. If you are not sure, ask a
qualified electrician for a check.
2.2) PRCD, portable residual current device or GFI:
safety rules
your chainsaw is equipped with a safety portable
residual current device (PRCD or GFI) assembled
on the cord. This device, shown in figure 9, is
meant to protect the operator in case of electrical
dissipation. Never use the chainsaw without
PRCD or with damaged PRCD.
before operating make sure the PRCD works
properly: see Paragraph 3.3 Power Supply.
if, during operation, the PRCD triggers: stop
working, set the switch on the OFF position and
bring your product to an authorized service centre.
2.3) Water supply: Safety rules
In order to run properly, the chain needs to be
cooled by water. Prevent water from entering the
electric motor or any other electrical
components. If this happens, the PRCD triggers
and the product needs to be check by an
authorized service center.
2.4) Checks and precautions to avoid structural damage
and damage to a building
Before operating, talk to the construction manager or the
planner in order to make sure that cutting doesn’t:
damage the structure of the building and change
the structural characteristics of the construction;
damage any water or gas pipeline or any electric
mains.
2.5) Checks and precautions to avoid damage caused
by the fall of the cut out work piece
before operating, make sure that the possible falling
of the cut out work piece doesn't make any
damage. In any case, secure the area where the
work piece can fall and signal the danger;
if the possible fall of the cut out work piece can
damage anybody or anything, make sure to have a
proper system in place to secure it safely.
2.6) Fastening the work piece and size of the work piece
if you are operating on a block not part of a
structure, fasten it in order to prevent its movement.
Prevent the work piece from shifting, moving or
falling when you are cutting.
2.7) Suitable Bars and Chians
Use bars and chains for wet cutting. Bars and chain
for concrete, reinforced concrete, stone, are
suitable for your product. Your product is not
suitable to cut wood, plastics, metals (except
reinforcing bars in concrete).
Use only bars and chains provided by CARDI or
authorized dealer.
2.8) Bars and Chains not to be used
Do not use bars and chains other than the ones
prescribed by CARDI. Do not use chains for
wood, tungsten carbide chains or chains for
masonry. Chains for wood or masonry generate a
kickback effect when plunging: for this reason this
kind of chainsaws are equipped with specific safety
systems not present in your concrete chainsaws.
2.9) Protective devices
Before operating make sure to wear all safety devices listed
below:
Always
wear safety
goggles
Always
wear safety
gloves
Always
wear ear
protection
Always
wear safety
shoes
2.10) Other safety directions
Keep handles (pointed with H and F in figures)
dry and clean. Make sure there is no oil or
grease on them. Greasy or wet handles can lead
to lose control of the chainsaw.
Make sure to firmly grip the product using both
hands on handles (fig. 5). Firmly hold the product
with both hands till the chain has come to a
complete stop.
When storing or transporting the product make
sure the protecting cover is on the bar (B) and
chain (A).
When operating, keep proper footing and
balance for a full control of the product.
Improper footing and balance, operating on ladders
or on unstable structure can lead to serious injury
or death.


English 10
When operating do not excessive stretch out
your arms and do not perform cut higher than
your shoulders. Arms stretched too far out or cuts
above shoulder height can lead to loss of control of
the chainsaw.
Keep the chain sharp (see “Operating tips”
paragraph).
A not dull chain leads to an excessive feed by the
operator and this can lead to lose control of the
product.
Do not use the product if the cover (D), the front
panel (G), the slurry protector (I) or any other
protection devices is damaged or not properly
working. Those devices prevent to get in contact
with moving parts and to protect the operator from
slurry and debris.
Do not use the product if chain and/or bar are
damaged.
When performing vertical cuts, do not operate
using the product upside down (fig. 18). Water
and debris can hit the operator and can wrongly
flow over the product leading to a possible danger.
For this reason do not perform overhead cuts!!!
Do not place the bar and chain in a previously
made cut performed with a narrower chain (less
than 6 mm). This can lead to a kickback.
3
3) )C Ch he ec ck ks sb be ef fo or re eo op pe er ra at ti in ng g
3.1) Earth (Ground) check
Make sure the power supply is properly earthed;
Warning: proper earthling is important for your
safety. If not sure, ask a qualified electrician for
a check.
3.2) Choosing the correct extension cord
when you have to operate far from a power supply,
you can use an extension cord. If you use it make
sure that the section of the cord is suitable and that
the cord is provided with ground conductor;
the extension cord (made up of cable, plug and
socket) must be suitable for outdoor use. It is better
if the cord is made of rubber and it is H07RN-F;
follow the chart shown in figure 20 on this manual
for the choice of the right section of the conductors;
if you use more than one extension cord make sure
that every cable in every extension cord has a
section not lower than the value shown on the chart
in figure 20, considering the total length of the
extension cords;
remember that the more an extension cord is long
the more the voltage drop is high and the worse is
the operation of your product. Don’t use extension
cords if you have to operate too far from the power
supply.
3.3) PRCD-GFI check
Before operating check that the PRCD-GFI (C) works
properly (fig.9):
connect the saw to a power supply;
Press the green button Reset (Q): a red led will light
up (S) showing that electricity is available to the
saw, then press the blue button Test (R) that tests if
the device works properly. When you press it the
circuit breaker inside the PRCD should cut the
power off leading the switch automatically to go to
the off position and the red led to go off. If this
doesn’t happened, see an authorized service center
for a check;
3.4) Connection to a water supply
The chainsaw is equipped with a water inlet system (figure
8, L). Connect the chainsaw to a water supply using this
system following those steps:
Connect the water hose to the quick hose
connector (P);
Make sure there is no water leakage;
the maximum pressure of incoming water is 4 bar
(58 PSI);
use just clean water;
4
4) )B Ba ar r, ,c ch ha ai in na an nd dS Sp pr ro oc ck ke et t
4.1) How to use the bar
the bar (B) needs to be periodically flipped over in
order to wear out eavenly on both sides;
the bar wears out. Usually you need to replace it
every 2 to 3 times you replace a chain;
a correct chain (A) tension allows a longer bar life.
See paragraph 4.2 .
4.2) How to use the chain
Chains usage lead to chain stretching;
An optimal chain tension reduces chain and bar
wear and increases productivity and safety.
Check chain tension before use and stop
periodically during operation to make sure the chain
tension is correct;
An excessive tension leads to higher friction,
reducing cutting performance and increasing bar
and chain wearing;
A loose chain reduces cutting performance and can
lead to the chain to disengage from the bar;
Follow steps in paragraph 4.3) Mounting and
replacing bar and chain to set the correct chain
tension;
Check the chain more frequently when the chain is
new since new chains have higher chain stretching.
4.3) Mounting and replacing bar and chain
Before mounting or replacing the bar (B) or the
chain (A) make sure the chainsaw is unplugged
(M). Do this operation in a safe place, use
protective gloves and place the product on a stable
surface.
See figure 10, follow these steps:
Unscrew and remove (10/A) screws and bolts
holding the cover;
Remove the cover (10/B);
Remove the metal sheet component shown in
figure (10/C);
Place the chain on the bar: keep it loose in the back
of the bar;
Place the chain (back of the bar) on the sprocket
and position the bar on the chainsaw making sure it

11 English

engages with the threatened pins. Make sure also
that the pin (T) of the adjusting system is fully
engaged (10/D);
Place the metal sheet component on as shown in
figure (10/E);
Make sure that the O-ring is correctly place on the
cover as shown in figure 6;
Holding the bar, position the cover on, and then
slightly tighten the bolds (10/F);
screw (clockwise) the adjusting system screw (U)
(10/G) till the chain is correctly tightened. A proper
tightened chain is represented in figure 13: figure
12 represents a chain too tight, figure 14 a chain
too loose;
keep the bar raised from the surface, fully tighten
the cover screws (10/H).
4.4) Mounting and replacing the back sprocket
The back sprocket wears out and needs to be periodically
replaced; replacement takes place usually every 2 to 3 chain
replacements. See figure 11:
Before starting, make sure the chainsaw is
unplugged (M).
make sure to be in a safe place when performing
this operation. Place the chainsaw on a stable
surface;
unscrew the cover bolts (11/A);
remove the cover (11/B);
remove the metal sheet component (11/C);
remove bar and chain;
hold the sprocket using a pliers as shown in figure
11/D;
loosen the sprocket bolt and remove it. Remove
than the washer and the sprocket (11/E);
clean the area where the sprocket was and oil it
preferably using WD40 spray oil.
follow the steps above backwards to mount the
sprocket, making sure the bolt is tightened (11/F);
mount bar and chain.
5
5) )O Op pe er ra at ti in ng gi in ns st tr ru uc ct ti io on ns s
5.1) Follow those steps:
To perform a cut, after having carefully read the paragraphs
above and having checked grounding:
with unplugged chainsaw, make sure the chain is
correctly tightened;
plug the chaisaw in;
make sure the PRCD-GFI works properly according
to directions give in paragraph 3.3) PRCD-GFI
check;
press the green Reset button (Q) on the PRCD-
GFI: the red light (S) will light up, showing that
power is available;
connect the chainsaw to a power supply as shown
in paragraph 3.4) Connecti to a water supply;
Turn on the valve (O) letting water in;
Firmly hold the saw with both hands as shown in
figure 5;
Make sure the chain is not in contact with anything
and then switch on the saw (N). In order to avoid an
unintentional start, the switch is equipped with a
lock off system. This means that you need to follow
two steps (I and II) to switch on the chainsaw as
shown in figure 4;
Your chainsaw is equipped with a soft start system
that allows a smooth start of the chain.
5.2) Cutting methods
Lay out the cut with a marker: the cut must be
straight;
To start, plunge the nose of the cutting bar straight
into material till you reach the desired cutting depth.
Keep the bar perpendicular to the wall;
Rock the saw when cutting (figure 15). This leads to
leverage effect that makes cutting easier.
Do not apply too much feed force. A good feed
force leads to best cutting performance, excessive
feed force leads to lower RPM and lower
performance;
Do not perform non-straight cuts and do not tilt side
by side the chainsaw: these would lead to motor
overload and damage bar and chains;
To stop, release the switch (N);
Warning: the chain keeps running for some
seconds after the switch has been released;
Close the water valve (O);
5.3) Horizontal cuts
You can perform either horizontal or vertical cuts.
When cutting horizontally make sure the work piece
does not press on the bar: use the product as
shown in figure 17. Do not use the product with
handle downward as shown in figure 16. When
cutting an opening such as a window perform first
horizontal cuts and then vertical ones.
5.4) Cutting reinforced concrete
When cutting reinforced concrete rock the saw as
shown in figure 15 in order to keep cutting concrete.
This avoids that the segments gets polished
reducing cutting effectiveness;
5.5) Re-Sharpening the segments
If you experience reduced cutting effectiveness for
polished segments, re-sharpen the segments using
a sharpening stone (not included). Make sure the
stone is properly fastened: see stone manufacturer
directions. Perform re-sharpening with water,
cutting a 1" cut in the sharpening stone.
Warning: do not perform re-sharpening holding the
stone by hand or your feet.


English 12
6
6) )C CA AR RD DI IM Mu ul lt ti if fu un nc ct ti io on nE El le ec ct tr ro on ni ic c
(
(" "s sm ma ar rt te el le ec ct tr ro on ni ic c" ") )
Your saw is equipped with a CARDI multifunction electronic
device that includes a soft-start and an electronic clutch;
the soft-start allows the motor to start gradually,
reduces current (amp) peak that occurs when you
switch the motor on, helps you when you begin
cutting, allowing gradual chain rotation and avoiding
jerks at your arm. Depending in what country you
are operating the saw it is sometimes possible to
plug the saw into house power instead of a
generator. Check with your local contractor and
electrician. Always follow local and national
regulations.
the electronic clutch makes sure that the current
absorbed by your product, proportional to the motor
load, is below the max. safety limit and, in case the
current absorbed exceeds the limit it cuts off power
to the motor, preventing damage. When the
overload is over, the device gives back power to the
motor that starts working again immediately;
if the electronic clutch operates frequently it means
that the product is not used properly. Possible
causes can be a excessive feed, uneven cuts or
polished segments.
The CARDI multifunction electronics avoids chain jerks
reducing the need to adjust chain tension.
7
7) )M Ma ai in nt te en na an nc ce e– –S Se er rv vi ic ce e- -
W
Wa ar rr ra an nt ty y
7.1) Cleaning, maintenance and lubricating
At the end of the working day, perform the following
operations:
Warning: do not clean you chainsaw with water
jets or high pressure cleaner;
Warning: remove bar and chain before proceeding
with the following operations.
Blow compressed air on the motor, with the motor
running in order to remove slurry. Use protective
goggles when doing it.
Warning: unplug the chainsaw before proceeding
with the following operations.
Check the power cable and extension cords for
damages. If damaged, contact a CARDI authorized
service center for replacement.
With bar and chain off and after having
disassembled the cover, remove the slurry from the
chainsaw (in particular from the chain tensioning
system) using a suitable brush;
Oil the chain tensioning system;
Clean bar and chain using water, in particular the
bar grove and the water outlet system (using a
proper wire as shown in figure 19);
Dry bar and chain;
Oil bar and chain;
keep your product clean and dry, in particular its
handles;
never use solvents or other harsh chemicals to
clean your product;
gears are lubricated by lubricating oil and grease
which are suited for any external temperature. You
don’t have to check the oil level or to fill it up.
after use put your saw in a dry, safe and
inaccessible place to children place.
7.2) Service
Some components of your chain saw wear. It
depends on how long you used the product and
how heavy was the work. Bring your product to an
authorized CARDI service center for a check after 6
months if heavily used or every year if regularly
used. Wearing parts are: bar, chain, back sprocket,
brushes, rotor, power cables, switch, sealing rings,
bearings, and lubricants.
any repairs must be carried out by CARDI
authorized service personnel only. Ask your dealer
for the list of the CARDI authorized service centers.
Use original CARDI parts only.
your core product serial number is stamped on the
machine or printed on the data plate as shown in
figure 9
No components of your CARDI product (except bar,
chain and back sprocket) can be replaced by the
user. Replacement must be carried out by CARDI
authorized personnel only.
CARDI Service Centers: Ask your dealer for a
CARDI service centers address list.
7.3) CARDI Warranty – 24 months
According to current European Directives, the manufacturer
must provide a 12 month warranty on the product. CARDI,
considering the high quality standard of its design and
manufacturing, provides its customers with a full 24 month
warranty in Europe at the conditions defined below.
Some countries may vary. Check with your local Distributor.
If your chainsaw is not functioning properly or has faulty
workmanship or flaws in material within 24 months from the
date of purchase CARDI will replace, free of charge for the
owner, defective components or, at CARDI discretion, the
whole product, if:
The product has been purchased within 24 months:
invoice or delivery certificates are needed to prove
this;
The product has not been misused. The product
must have been used properly according to the
directions provided in this user manual;
no unauthorized people have operated on the
product;

13 English

This warranty does not apply if malfunctioning is caused by
worn out parts.
8
8) )O Op pe er ra at to or rs sT Tr ra ai in ni in ng g
The product is easy to use, however a brief training allows
better safety and performance.
CARDI and some authorized distributors provide, free of
charge, training sessions at their locations.
9
9) )P Pa ac ck ka ag ge eC Co on nt te en nt ts s
The chainsaw package includes bar, chain, bar cover,
wrench and:
xUser Manual.
xCE declaration of conformity.
xDocuments: Data sheet, Exploded view drawing and
spare parts list.
Save these instructions for future consultation
Products to the end of their life.
The symbol on the left, that you can find on the product or on its packaging indicates that this product may not be treated as
household waste. At the end of its life the products must be handed over to the applicable collection point for the recycling of
electrical and electronic equipment.
Be sure that this product is disposed correctly. You will help prevent potential negative consequences for the environment and
human health. For more detailed information about what to do when your product doesn't work and is not fixable, contact the dealer
where you did purchase the product.
Your product has been introduced new on the market after August 13
th
2005.
This manual is subject to modifications without notice.
WA RNIN G:
THE MANUFACTURER DECLINES ALL RESPONSABILITY
IN CASE OF NO RESPECT OF THE ABOVE WRITTEN
"SA FET Y AN D OPERATING IN STR UC TI ONS" .