Atlas Copco CC 250 User manual

Operating instructions Combi cutter
CC 250 and CC 550
2009−07−10T.Id.Nr. 3390 5012 01

3
Operating instructions Combi cutter
CC 250
CC 550
EAtlas Copco Construction Tools GmbH
Atlas Copco Construction Tools GmbH
P. O. Box: 102152, D  45021 Essen
Helenenstrasse 149, D  45143 Essen
Federal Republic of Germany
Telephone: [phone]  0

4
Table of contents
1. Foreword 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Accident prevention regulations 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Marking according with machinery directive 98/37/EC 8. . . . . . . . . . . . . . . . . . . . . . . . .
3.1. CE−nameplate of product group Combi cutter 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. General informations 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1. Applications 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2. Scope of supply 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Main components 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1. Components of the Combi cutter CC 250 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2. Components of the Combi cutter CC 550 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Installation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1. Media/consumables 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.1. Mineral hydraulic oil 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.2. Non−mineral hydraulic oil 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1.3. Grease 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2. Transportation and storage 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3. Attaching the adapter to the Combi cutter 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4. Mounting the Combi cutter on the excavator − mechanical aspects 15. . . . . . . . . . . . . . . . .
6.5. Mounting the Combi cutter on the excavator − hydraulic aspects 16. . . . . . . . . . . . . . . . . . .
6.6. Switching the Combi cutter on/off from the carrier 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.7. Dismounting the Combi cutter from the excavator for short or lengthy periods of
nonuse 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Operating the Combi cutter 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1. Start−up the Combi cutter 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2. Functional test 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3. Instructions on the correct use of the Combi cutter 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.4. Underwater applications 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.5. Using the Combi cutter on cranes 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.6. Working in high ambient temperature 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.7. Working in low ambient temperature 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.8. Operating the Combi cutter with the cylinders fully extended or retracted 27. . . . . . . . . . .
8. Maintenance and care of the Combi cutter 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1. General informations 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2. Maintenance to be carried out by the carrier driver 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.1. Lubrication of the Combi cutter 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.2. Checking for cracks 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.3. Checking the O−rings 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.4. Checking the blade clearance 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.5. Checking for wear 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.6. Checking the hydraulic lines before starting work 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.7. Checking the adapter bolts for wear 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.8. Checking and cleaning the hydraulic oil filter 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.9. Checking screw couplings 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3. Maintenance / Tightening torques 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9. Troubleshooting 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1. Combi cutter does not work 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.2. Combi cutter shows insufficient closing force 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.3. Combi cutter does not cut 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.4. Operating pressure too high 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.5. Oil leaks from hydraulic ports 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.6. Inadequate lubrication 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Disposal 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11. Lightweight, powerful, robust − Light−duty CCs. 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12. Technical specifications 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5
1. Foreword
Please read thisoperating manual beforeusing
your Atlas Copco Combi cutter for the first timeso
as to avoiderrorsand breakdowns through incor
rect usage.
These operating instructions contain:
Himportant safety regulations
Hoperating instructions for the Combi cutter
Hmaintenance instructions for the Combi cutter
Haids to troubleshooting
The operating instructions describe how to use the
Combi cutter on site and shouldthereforebe kept
inthe document compartment of the excavator
cab.
Please pay careful attention to the safety regula
tions which arelisted at the beginning of thisman
ual and repeated inthe relevant sections.
Responsibility for the observation of these safety
regulations lies at all times with the operator.
All safety regulations listed inthismanual comply
with the lawsand regulations of the European
Union. Additional national regulations have also
been taken into consideration wherever applicable.
Combi cutter operation outside the European Union
issubject to the lawsand regulations validinthe
countryof use. Morespecificnational regulations
and lawsthat applyinyour countrymust be obser
ved.
Please note that reliableoperation of the Combi
cutter can onlybe guaranteed ifgenuine spare
parts areused.
Wewish you everysuccess with your Combi cut
ter.
Atlas Copco Construction Tools GmbH

6
2. Accident prevention regulations
To avoid the risk of injury, please observe the fol
lowing instructions.
Familiarise yourself with the operating manual and
the applicable regulations before starting work with
the Combi cutter.
When using Combi cutter in states of the European
Union, the regulations contained in the EC machin
ery directive 98/37/EC must be observed and fol
lowed, as must all applicable national accident pre
vention regulations. In countries outside the
European Union, the valid local statutes and regula
tions shall apply. In countries outside of this zone
the corresponding general and specific laws and
regulations must be observed.
Explanation of the symbols used in this operating instructions
To emphasise their importance, certain points in the
operating instructions are marked with symbols,
which are described below.
DANGER!
Note!
The marked text provides instructions
on the correct use of the hydraulic tool
aimed at avoiding incorrect operation or
errors during work.
The marked text provides safety regula
tions and instructions aimed at avoiding
damage to equipment.
CAUTION!
The marked text provides safety regula
tions and instructions aimed at avoiding
accidents and possible injuries.

7
Before the first installation:
Beforemounting/dismounting the hydraulic tool
and/or any maintenancework on the hydraulics of
the hydraulic tool/carrier the hydraulic system must
be depressurized!
When using or transporting the carrier withthe
Combi cutter attached, the instructions included in
the operating manual supplied by the carrier
manufacturer must alsobe observed.
Do not run any hydraulic lines through the driver’s
cab sincethey may spring leaks or even burst.
During operations, the hydraulic oil becomes very
hot.
Mounting the Combi cutter:
Mounting the Combi cutter requires the presenceof
an assistant, who must be instructed by the carrier
driver. The carrier driver and assistant should agree
beforehand on clear hand signals.
For transport purposes, useonly the lugs provided
and hoisting equipment of sufficient capacity.
The Combi cutter should only be mounted on an
excavator withsufficient load capacity. The carriers
specified under Section 12., Te chnical specifications
areneeded toinstall the Combi cutter.
Carriers below this weight class will not provide the
required degree of stability and could even fall over
during Combi cutter use, causing injury and damage.
Carriers abovethis weight class may apply
excessively high mechanical loads tothe attachment.
When attaching the adapter useonly the special
steel screws included in supply.
Check the nominal widthof the hydraulic lines on
existing hydraulic systems. It is important that supply
and returnlines for the hydraulic oil areadequately
dimensioned.
Keep your hands away from bores and fitting
surfaces when mounting the Combi cutter, especially
when the carrier boom is moving.
Collect any oil whichruns out and disposeof it in
accordancewiththe applicable statutory provisions
toavoid environmental hazards.
Operating the Combi cutter:
Closethe front screen/splinter guardon the driver’s
cab toprotect the driver from flying rock splinters
during Combi cutter operations.
The Combi cutter should only be operated from the
driver’s cab. Exception: remotecarrier control. See
Section 6.6..
Do not start up the Combi Cutter until bothcarrier
and Combi cutter arein the correct position.
Stop the Combi cutter immediately as soon as
persons arein the danger zone. The danger zone
during the Combi cutter operation is considerably
greater than during the excavation operation − on
account of fractions of stones and pieces of steel
flying around − and for this reason, the danger zone
must, depending on the type of material tobe worked
on, be enlarged correspondingly, or the danger zone
must be secured in asuitable manner through
corresponding measures.
Do not touch any hot parts
The Combi cutter heats up during operation.
Monitor the oil temperature
The temperatureof the hydraulic oil must never
exceed 80 oC. If higher temperatures aremeasured
in the tank, the hydraulic system and/or the
pressure−relief valvehavetobe checked.
Observethe excavator manufacturer’s safety
regulations.
CAUTION:
Withregardtoexcavator operation when working
withan attached Combi cutter, pleaserefer to
Section 6.6..
The Combi cutter is only tobe used for the
applications described.
Dismounting the Combi cutter:
Dismounting the Combi cutter from the carrier
requires the presenceof an additional assistant who
must be instructed by the carrier driver. The carrier
driver and assistant should agree beforehand on
clear hand signals.
When using the excavator or putting it out of
operation, the safety instructions of the excavator
manufacturer must be observed.
Keep your hands away from bores and fitting
surfaces when dismounting the Combi cutter,
especially when the carrier boom is moving.
Collect any oil whichruns out and disposeof it in
accordancewiththe applicable statutory provisions
toavoid environmental hazards.
Securethe Combi cutter after dismounting sothat it
cannot fall over.

8
3. Marking according with machinery directive 98/37/EC
CE−nameplate
Fig. 1
3.1. CE−nameplate of product group Combi cutter
Name and address of manufacturer
Model
Serial no.
Weight of product group
.Max. operating pressure
.Year of construction of product group
Atlas Copco Construction Tools
Essen Germany
Made in Germany
Type
Ser. No.
Deliv. wt
P max
Year
The CE nameplatecontains information on the
Combi cutter. The weight indicated refer tothe
weight of the Combi cutter.
When selecting hoists and suspension aids for
transporting the unit, the weight of the and adapter
may alsohavetobe considered.
Inaccording withEC directives CE nameplates must
be affixed firmly and in aclearly visible position.
Should thesenameplates be lost or defaced,
replacements can be ordered from your dealer/from
Atlas CopcoConstruction Tools GmbH.

9
4. General informations
4.1. Applications
The Combi cutter is an attachment suitable for
mounting on hydraulicpowered excavators.
The Combi cutter has been suited for the following
operations:
light demolition work, e. g. narrow, lightly reinforced
concreteelements, masonry
particularly effectivefor stripping out and
reconstructing interiors
CAUTION!
Incorrect operation may result in damage tothe
Combi cutter and tothe equipment of the excavator.
Under normal circumstances the Combi cutter is
operated from the driver’s cab of the carrier.
Pleaserefer toSections 2.and 6.6..
4.2. Scope of supply
The scope of supply of aCombi cutter generally
includes:
Combi cutter, operating instructions, spareparts list
and EC declaration of conformity.
Accessories: hoses according tothe order.
Special accessories: e. g. adapter, hydraulic adapter
kit for the excavator according tothe order.

10
5. Main components
5.1. Components of the Combi cutter CC 250
Fig. 2
CC 250
A
B360
1100
Ports
A+C
Table of dimensions
Port A = opening
Port C = closing
R1/2"
B
A
Mounting platefor
adapter
Cylinder
Cutter casing
Cutter jaw