Chicago Pneumatic CP 550 User manual

No. 3390 5053 01
AIB
2007−05−04
© Copyright 2007
www.chicagopneumatic.com
Operating instructions
for hydraulic breaker
TM
CP 550
CP 750
CP 1150
CP 1650
CP 2250
CP 3050
CP 4250

3
Operating instructions for hydraulic breaker
CP 550
CP 750
CP 1150
CP 1650
CP 2250
CP 3050
CP 4250
EChicago Pneumatic
Any unauthorized use or copying of contents or any part thereof is
prohibited.This applies in particular to to trademarks, model denominations,
part numbers and drawings.

4
Table of contents
1 Foreword 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Accident prevention regulations 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3CEmarkings EC machinery directive 98/37/EC 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1CEsticker product groups A10..................................................
3.2 CE sticker product groups B10..................................................
3.3 Sticker for guaranteed sound level power11.......................................
4 General informations 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1Applications 11................................................................
4.2 Scope of supply11............................................................
5 Main components 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1Maincomponents or assemblies CP550 and CP750 12............................
5.2 Maincomponents or assemblies CP1150 and CP1650 13..........................
5.3 Maincomponents or assemblies, CP2250, CP3050 and CP4250 14................
6 Installation 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1Media/consumables 15.........................................................
6.1.1Mineral hydraulicoil 15.........................................................
6.1.2 Non−mineral hydraulicoil 15.....................................................
6.1.3 Grease 15....................................................................
6.1.4 Gas 16.......................................................................
6.2 Attaching the adapter to the hydraulicbreaker16..................................
6.3 Mounting the hydraulicbreaker on the excavatormechanical aspects 17..............
6.4 Mounting the hydraulicbreaker on the excavator−hydraulicaspects 18................
6.5 Switching the hydraulicbreaker on/off from the carrier19...........................
6.6Dismounting the hydraulicbreaker from the excavator for shortor
lengthy periods of nonuse 19...................................................
6.6.1Dismounting from excavator19..................................................
7 Storage 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1Hydraulicbreaker20...........................................................
7.1.1Shortstorage 20...............................................................
7.1.2 Long storage 20...............................................................
7.1.3 How to proceed after morethan twelvemonths’ storage 20..........................
7.1.4 Working tool21................................................................
8 Fitting/removing the working tool 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1Selecting the right working tool22...............................................
8.1.1Working toolsfor hydraulicbreakersCP550 22....................................
8.1.2 Working toolsfor hydraulicbreakersCP750 22....................................
8.1.3 Working toolsfor hydraulicbreakersCP1150  CP4250 23.........................
8.2 Fitting the tool (After breaker deliveryto the site)24................................
8.2.1CP550 and CP750 24.........................................................
8.2.2 CP1150  CP4250 25.........................................................
8.3 Removing the tool25...........................................................
9 Operating the hydraulic breaker 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1Starting up the hydraulicbreaker26..............................................
9.2 Advance 26...................................................................
9.3 Angleof attack 27.............................................................
9.4 Breaker rocking 27.............................................................
9.5 Never drivethe working tool into the ground 27....................................
9.6Never lever with the breaker27..................................................

5
9.7 Never use as asledgehammer28...............................................
9.8Never use for transportpurposes 28.............................................
9.9Using the hydraulicbreaker inor under water28...................................
9.10Hydraulicbreaker used intunnelling 29...........................................
9.11 Working inhigh outside temperatures 29..........................................
9.12Working inlow outside temperatures 29..........................................
9.13Operating the breaker with the cylindersfullyextended or retracted 29................
10 Maintenance work to be performed by the excavator driver 30. . . . . . . . . . . . . . . . . . . .
10.1Manual lubricating of the working tool for CP550 30................................
10.2 Automaticlubrication using of the hydraulicbreaker 31.............................
10.2.1Automaticlubrication using CP−Lube 31..........................................
10.2.2 Changing the lubricant cartridge 31..............................................
10.2.3 Operating the CP−Lube 31......................................................
10.3 Manual lubrication without or upon failureof CP−Lube 32............................
10.3.1 Filling device for the chisel paste 32..............................................
10.4 Careand maintenance timetable33..............................................
10.5 Check 34.....................................................................
10.5.1Checking the working tool for wear34............................................
10.5.2 Checking the wear bushes 35...................................................
10.5.3 Checking the retaining pinfor wear (CP550 and CP750)36........................
10.5.4 Checking the retainer bars(CP1150  CP4250)36................................
10.5.5 Checking the impact face of the percussion piston 36...............................
10.5.6Checking the breaker box for wear and cracks and checking the
adapter for cracks 36...........................................................
10.5.7 Screw couplings CP550 and CP750 37..........................................
10.5.8Screw couplings CP1150 38....................................................
10.5.9Screw couplings CP1650 39....................................................
10.5.10Screw couplings CP2250, CP3050 and CP4250 40...............................
10.5.11 Checking pressureinpiston accumulator and refilling ifrequired 42...................
10.5.12Checking that the highpressureaccumulator isinperfect working order44............
10.5.13Checking the hydrauliclines beforestarting work44................................
10.5.14Checking the adapter bolts for wear44...........................................
10.5.15Checking and cleaning the hydraulicoil filter44....................................
11 Troubleshooting 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1Breaker does not start45.......................................................
11.2 Impact rate of hydraulicbreaker too low46........................................
11.3 Impact force too low47.........................................................
11.4 Impact rate too high and impact force too low47...................................
11.5 Oil leaks from ports »P« and »T« 47.............................................
11.6 Oil leaks between cylinder cover and cylinder48...................................
11.7 Oil leaks from parts of hydraulicsystem for breaker (Screw couplings, hoses etc.)48...
11.8 Oil leaks from working tool48...................................................
11.9 Oil leaks from high−pressureaccumulator48......................................
11.10Oil or grease leaks from CP−Lube 49.............................................
11.11 Operating temperaturetoo high 49...............................................
12 Disposal 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 Technical specifications 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6
1 Foreword
Please read thisoperating manual beforeusing
your Atlas Copco hydraulicbreaker for the first
timeso as to avoiderrorsand breakdowns through
incorrect usage.
These operating instructions contain:
Himportant safety regulations
Hoperating instructions for the hydraulicbreaker
Hmaintenance instructions for the hydraulic
breaker
Haids to troubleshooting
The operating instructions describe how to use the
hydraulicbreaker on site and shouldthereforebe
kept inthe document compartment of the exca
vator 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 havealso
been taken into consideration wherever applicable.
Hydraulicbreaker operation outside the European
Union issubject to the lawsand regulations validin
the countryof use. Morespecificnational regula
tions and lawsthat applyinyour countrymust be
observed.
Please note that reliableoperation of the hydraulic
breaker can onlybe guaranteed ifgenuine spare
parts areused.
Wewish you everysuccess with your hydraulic
breaker.

7
2 Accident prevention regulations
To avoid the risk of injury, pleaseobserve the fol
lowing instructions.
Familiariseyourself withthe operating manual and
the applicable regulations beforestarting work with
the hydraulic breaker.
When using hydraulic breaker in states of the Euro
pean Union, the regulations contained in the EC
machinery directive 98/37/EC must be observed
and followed, as must all applicable national acci
dent prevention regulations. In countries outside the
European Union, the valid local statutes and regula
tions shall apply. Pleaseobserve any other, more
stringent national/regional regulations and legisla
tion.
Explanation of the symbols used in this operating instructions
To emphasisetheir importance, certain points in the
operating instructions aremarked withsymbols,
whicharedescribed below.
DANGER!
Note
The marked text provides instructions
on the correct useof 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.

8
Before the first installation:
Before mounting/dismounting the hydraulic tool
and/or any maintenance work on the hydraulics of
the hydraulic tool/carrier the hydraulic system must
be depressurized!
When using or transporting the carrier with the hy
draulic breakers attached, the instructions included in
the operating manual supplied by the carrier manu
facturer must also be observed.
Do not run any hydraulic lines for attachment of the hy
draulic breaker through the driver’s cab! Hydraulic lines
may spring a leak or even burst! During operations, the
hydraulic oil becomes very hot.
Mounting the hydraulic breaker:
Mounting the hydraulic breaker requires the pres
ence of 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, use only the lugs provided
and hoisting equipment of sufficient capacity.
The hydraulic breaker should only be mounted on an
excavator with sufficient load capacity. The carriers
specified under Section 13, Technical specifications
are needed to install the hydraulic breaker.
Carriers below this weight class will not provide the
required degree of stability and could even fall over
during hydraulic breaker use, causing injury and
damage.
Carriers above this weight class may apply excess
ively high mechanical loads to the attachment.
When attaching the adapter use only the special
steel screws included in supply.
Check the nominal width of the hydraulic lines on
existing hydraulic systems. It is important that supply
and return lines for the hydraulic oil are adequately
dimensioned.
Keep your hands away from bores and fitting sur
faces when mounting the hydraulic breaker, es
pecially when the carrier boom is moving.
Collect any oil which runs out and dispose of it in ac
cordance with the applicable statutory provisions to
avoid environmental hazards.
When putting into use hydraulic breakers with
high−pressure accumulators the applicable
national requirements are to be observed, e.g. in
Germany an authorized person/inspection body is
to inspect and certify the system on site before put
ting it into use.
Fitting and removing the working tool:
Always wear protective glasses when fitting or re
moving the working tool, since metal splinters may fly
off when hammering out the locking bolts.
The working tool should only be fitted in the way de
scribed in this operating manual.
Never use your fingers to check whether the re
cesses on the working tool shaft are aligned to the
slots for the retainer bars.
Operating the hydraulic breaker:
Close the front screen/splinter guard on the driver’s
cab to protect the driver from flying rock splinters
during breaker operations.
Wear ear protectors
The national regulations of the country of use as re
gards excavator operations with percussive tools
shall apply.
Guaranteed sound power level
The LWA guaranteed sound power level is an upper
limit, indication of which is mandatory under EU di
rective 2000/14/EC. The guaranteed sound power
levels are listed in section 13, Technical Specifica
tions.
Do not start up the hydraulic breaker until both carrier
and hydraulic breaker are in the correct position.
Stop the hydraulic breaker immediately as soon as
persons are in the danger zone. The danger zone
during the breaker 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, depend
ing on the type of material to be worked on, be en
larged correspondingly, or the danger zone must be
secured in a suitable manner through corresponding
measures.
Do not touch any hot parts
The hydraulic breaker heats up during operation.
Monitor the oil temperature
The temperature of the hydraulic oil must never ex
ceed 80°C. If higher temperatures are measured in
the tank, the hydraulic system and/or the pressure−
relief valve have to be checked.
Observe the excavator manufacturer’s safety regula
tions.
CAUTION!
With regard to excavator operation when working
with an attached hydraulic breaker, please refer to
Section 6.5.
The hydraulic breaker is only to be used for the ap
plications described.

9
Maintenance and repairs:
The piston accumulator integrated in the hydraulic
breaker is pressurised. Before dismantling the hy
draulic breaker it is essential that all gas be bled off.
The same applies to removal of the filling valve »G«
(see Section 10.5.11).
When filling the piston accumulator, ensure noone is
in the vicinity of the working tool. If the tool has
jammed, the increase in pressure in the piston accu
mulator may cause it to spring out suddenly.
DANGER: risk of injury!
The piston accumulator should only be filled with ni
trogen from the green nitrogen cylinder. Ensure that
no other gas, e.g. air or oxygen, gets into the piston
accumulator.
DANGER: risk of explosion!
Pressure accumulator
Before replacing the pressure accumulator, the hy
draulic system must be fully depressurised.
If one of the expansion bolts on the highpressure
accumulator should break, it is imperative that all
bolts be replaced.
If any significant changes are made to the hy
draulic system, a new acceptance inspection is
to be carried out in accordance with the relevant
national safety provisions.
Note
Check the pressure accumulator in accordance with
the national safety provisions. We recommend five−
yearly maintenance intervals.
Dismounting the hydraulic breaker:
Dismounting the hydraulic breaker from the carrier
requires the presence of 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 oper
ation, the safety instructions of the excavator manu
facturer must be observed.
Keep your hands away from bores and fitting sur
faces when dismounting the hydraulic breaker, es
pecially when the carrier boom is moving.
Collect any oil which runs out and dispose of it in ac
cordance with the applicable statutory provisions to
avoid environmental hazards.
Secure the hydraulic breaker after dismounting so
that it cannot fall over.

10
3CEmarkings EC machinery directive 98/37/EC
AProduct group:Hydraulic breaker
(without guide system)
Location of CEsticker
BProduct group:Hydraulic breaker with
breaker box
Location of CEsticker
LWA sticker
rear side of
breaker box,
below upper
flange
3.1 CE sticker product groups A
1
2
4
5
6
7
3
1. Name and address of manufacturer
2. Model
3. Serial no.
4. Part ident. no.
5. max. operating pressure
6. Year of construction of product group
7. Weight of product group
3.2 CE sticker product groups B
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 CEnameplate contains information on the unit
"breaker and breaker box". All weights indicated refer
to the weight of this unit.
When selecting hoists and suspension aids for trans
porting the unit, the weights of the working tool and
adapter may also have to be considered.
In according with EC directives CEnameplates must
be affixed firmly and in a clearly visible position.
Should these nameplates be lost or defaced, repla
cements can be ordered from your dealer/from Chi
cago Pneumatic.
The following information must be provided:
Part ident. no. of the tool/ser. no. and date of delivery
(from the delivery note).

11
3.3 Sticker for guaranteed sound level power
In accordance with EU directive 2000/14/EC, hy
draulic breakers used within the EU must bear a
marking legible from the outside stating the sound
power level guaranteed by the manufacture.
4 General informations
4.1 Applications
The hydraulic breaker is an attachment suitable for
mounting on hydraulicpowered excavators.
The hydraulic breaker has been suited for the follow
ing operations:
Construction:
Demolition, tearing up, trenching, foundation work
Mining and quarrying:
Primary breaking, bench leveling, reducing mineral
raw materials and rocks, tunnel construction
Under normal circumstances the hydraulic breaker is
operated from the driver’s cab of the carrier.
Please refer to Sections 2and 6.5.
4.2 Scope of supply
The scope of supply of a hydraulic breaker generally
includes:
Hydraulic breaker, operating instructions, spare parts
list and EC declaration of conformity.
Accessories:Mounting tool, hoses and service box
according to the order.
Special accessories:e. g. adapter, hydraulic adapter
kit for the excavator according to the order.

12
5 Main components
5.1 Main components or assemblies CP 550 and CP 750
CP 550 CP 750
CEnameplate
CEname
plate
cylindercover
cylinder
hammerbox
lower hammer part
The graphic shows only a general view of the main components.
Details may vary on different breaker models
working tool

13
5.2 Main components or assemblies CP 1150 and CP 1650
CP 1650
CEname
plate
CP 1150
CEnameplate
working tool
hammer box
cylinder cover
The graphic shows only a general view of the main components.
Details may vary on different breaker models.
cylinder
High−pressure
accumulator
lower hammer part

14
5.3 Main components or assemblies, CP 2250, CP3050 and CP 4250
hammer box
cylinder
cylinder cover
lower hammer part
CP 2250,
CP 3050,
CP 4250
Sealing flange
CEname
plate
working tool
The graphic shows only a general view of the main components.
Details may vary on different breaker models.
High−pressure
accumulator

15
6 Installation
6.1 Media/consumables
The following media/consumables are required to operate the hydraulic breaker:
6.1.1 Mineral hydraulic oil
All hydraulic oil brands prescribed by the carrier
manufacturer are suitable for hydraulic breakers.
The oil should however correspond to viscosity class
HLP 32 or higher.
In summer and in hotter climates, oils of viscosity
class HLP 68or higher should be used.
In all other respects the regulations of the carrier
manufacturer are to be considered.
Optimum viscosity range = 30  60 cSt
Max. initial viscosity = 2.000 cSt
Max. oil temperature = 80°C
Please refer to Section 9.12for lowtemperature hy
draulic breaker applications.
Check the oil filter in the return line to the hydraulic
system.
The return line to the hydraulic system must be fittet
with an oil filter with a mesh no greater than 50
micrometers and equipped with a magnetic sparator.
CAUTION!
Monitor the oil temperature.
The temperature of the hydraulic oil must never ex
ceed 80°C. If higher temperatures are measured in
the tank, the hydraulic system and/or the pressure−
relief valve have to be checked.
6.1.2 Non−mineral hydraulic oil
In order to protect the environment or on technical
grounds, hydraulic oils are currently being used
which are not classified as HLP mineral oils.
Before using hydraulic oils of this kind it is imperative
to ask the carrier manufacturer whether operations
with such hydraulic oils are possible.
Our tools are basically designed for use with mineral
oils. Before using other hydraulic oil types which
have been approved by the carrier manufacturer,
Chicago Pneumatic Customer Center /dealer in your
region must always be consulted. Following initial
assembly and after any workshop repairs, our tools
are subjected to a test run on a test bed powered by
mineral oil.
Note
When returning tools for repair, it is imperative that
the name of the oil in use be indicated if you are
using non−mineral oil.
CAUTION!
Never mixmineral and non−mineral hydraulic oils! Even
small traces of mineral oil mixed in with non−mineral hy
draulic oil can result in damage to both hydraulic attach
ment and carrier.
CAUTION!
Non−mineral oil is no longer biodegradable if it is con
taminated with mineral oil. Contaminated non−mineral
oil must be disposed of as special waste in accordance
with the applicable statutory regulations for environ
mental protection.
6.1.3 Grease
ÂÂÂÂÂÂÂÂ
Â
ÂÂÂÂÂÂ
Â
ÂÂÂÂÂÂÂÂ
Grease type
ÂÂÂÂÂÂÂÂÂ
Â
ÂÂÂÂÂÂÂ
Â
ÂÂÂÂÂÂÂÂÂ
Pt.−Id.−No.
Chisel paste 3363 094910
Always observe the relevant safety regulations when
handling oils and greases.

16
6.1.4 Gas
Normal nitrogen, 99.8% pure.
Use only nitrogen to fill the piston accumulator and
ensure that no other gas, e.g. air, oxygen, is used. DANGER!
Risk of explosion!
The nitrogen for the piston accumulator is in the
green gas cylinder. Use of other gases could result in
an explosion.
6.2 Attaching the adapter to the hydraulic breaker
Lay the hydraulic breaker on squared beams or a
pallet within reach of the excavator boom with the
service window of the breaker boxfacing upwards.
Insert the elastic pad in the breaker box, ensuring it
is the right way round, and fixthe adapter to the
breaker boxwith two screws (referring to Sec
tion6.3)
Then fit all screws. The required sizes for the Allen
keys are shown below.
Apply anti−seize to the threads of the cylindrical bolts
before screwing them in.
The contact face of the bolt head and the locking
rings must be free of lubricant.
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
Model
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ
Type of spanner − size
CP 550
CP 750
Allen key size 17 /390 Nm
CP 1150
CP 1650
CP 2250
Allen key size 22 /1500 Nm
CP 3050
CP 4250 Allen key size 27 /2300 Nm
DANGER!
Only the specialsteel Allen screws included in sup
ply should be used to attach the adapter.
For transport purposes use only the lug(s) provided.
Note the weight (name plate, section 3.2).
Screw
Elastic pad
Adapter
Stiel
Stick = Stiel
Marking:
Pair of locking rings

17
6.3 Mounting the hydraulic breaker on the excavatormechanical aspects
DANGER!
Only mount the hydraulic breaker on an excavator
with sufficient load capacity. If the excavator is too
light it may become unstable and fall over.
During breaker mounting, the carrier should only be
operated from the driver’s cab.
Agree with the assistant on clear hand signals.
The assistant must be instructed by the excavator
driver.
Keep your hands away from bores and fitting surfa
ces when mounting the hydraulic breaker.
Do not touch any parts when the boom is moving.
Never use your fingers to check whether the bores
are flush.
To mount the hydraulic breaker, carefully lower the
stick of the boom into the adapter. An assistant di
rects the movement of the stick until the bores in the
stick are flush with those in the adapter. Then insert
the stick pin and lock.
Stick
AdapterStick pin
Hydraulic breaker
Lift up the hydraulic breaker. Extend the shovel cylinder until the bore in the toggle is flush with those in the
adapter. Insert toggle pin and lock.
Stick Shovel cylinder
Adapter
Toggle
Toggle pin
CAUTION!
After mounting the breaker, carefully extend and re
tract the shovel cylinder to its full extent in each
case. It is important that the cylinder can be fully ex
tended and retracted without any difficult. If problems
are encountered, please consult our Aftermarket de
partment.

18
6.4 Mounting the hydraulic breaker on the excavator−hydraulic aspects
DANGER!
Before mounting/dismounting the hydraulic tool
and/or any maintenance work on the hydraulics
of the hydraulic tool/carrier the hydraulic system
must be depressurized.
The excavator must have a hydraulic system suitable
for breaker operations.
Check the nominal width of the hydraulic lines on
existing hydraulic systems. All feed and return lines
for the hydraulic oil must have a sufficient inside dia
meter. Refer to Section 13, Technical specifications.
Use only hoses/pipes which satisfy the following qua
lity criteria:
Hydraulic hoses with 4 wire spiral layers to
DINEN856.
Hydraulic pipes:seamless, cold drawn steel pipes to
DINEN10305.
The safety facilities on the hydraulic system must be
checked by a professional/authorised persons for
their quality (CEmark etc.), suitability and proper
functioning prior to their first use. By checking the
setting of and, where possible, attaching a lead seal
to the pressure limiting valve, it can be guaranteed
that the system’s working pressure, laid down in ac
cordance with chapter 13, Technical Specifications,
can never be exceeded.
The return line from the breaker must run direct to
the oil tank in order to guarantee a reliable return oil
flow.
The pressure−relief overflow line must run direct from
the pressure−relief valve to the tank to ensure the
reliable functioning of the valve.
Do not run any hydraulic lines for attachment of the
hydraulic breaker through the driver’s cab!
Hydraulic lines may spring a leak or even burst, re
leasing hot hydraulic oil.
CP 2250:
Unscrew the blank flanges from ports »P« and »T«
and put them in the toolboxfor safekeeping.
Fasten the hose flanges to the hydraulic breaker
using the fastening bolts. (Tightening torques see
section 10.5.10).
CP550, CP750, CP1150, CP1650, CP3050 and
CP 4250:
Unscrew the caps from ports »P« and »T« and keep
them. The pressure port »P« is marked in red.
Check the connecting threads on the hydraulic brea
ker ports and the corresponding hose connectors to
ensure they are undamaged. Sand or other foreign
bodies in the threads must be cleaned away.
Screw the hoses to the ports. (Tightening torques
see section 10.5.7 10.5.10).
all types:
If you come to the conclusion that the system does
not comply with the requirements listed above, the
hydraulic breaker must not be operated. For reasons
of safety, you should absolutely contact the Chicago
Pneumatic Customer Center /dealer in your region.
When connecting or reconnecting the hydraulic lines,
the carrier must be secured in such a way that auto
matic startup of the hydraulic breaker is reliably
avoided.
Screw caps
Hoses
Port P
Port T"
The graphic may vary for different breaker models.

19
6.5 Switching the hydraulic breaker on/off from the carrier
After the proper attachment of the hydraulic breaker
to the carrier, the hydraulic breaker can be operated
using the carrier’s hydraulic system. All functions for
normal excavator operations remain intact. The hy
draulic breaker is switched on and off using electrical
and hydraulic signals. For further details please con
tact the carrier manufacturer or the Chicago Pneu
matic Customer Center /dealer in your region.
When leaving the driver’s cab, the safety switch for
the electrical/hydraulic breaker operation system
must be set to the "OFF" position.
So as to reliably prevent any unintended start−up of
the hydraulic breaker.
6.6 Dismounting the hydraulic breaker from the excavator for short or
lengthy periods of nonuse
6.6.1 Dismounting from excavator
Unless otherwise stipulated, the hydraulic breaker is
dismounted in reverse order to mounting.
Before mounting/dismounting the hydraulic tool
and/or any maintenance work on the hydraulics
of the hydraulic tool/carrier the hydraulic system
must be depressurized.
For safety reasons, the carrier must be switched
off before performing the following work.
Lay the hydraulic breaker flat on the ground.
Unscrew the hoses from the boom and seal them
with appropriate caps.
Unlock the toggle and stick pins and knock out the
pins using a steel rod and a breaker.
DANGER!
Collect any oil which runs out and dispose of it in ac
cordance with the applicable statutory provisions to
avoid environmental hazards.
Agree on hand signals with the assistant.
Keep your hands away from bores and fitting sur
faces when dismounting the hydraulic breaker.
Do not touch any parts when the boom is moving.
Wear protective glasses when fitting and removing
the working tool.

20
7 Storage
DANGER!
Hydraulic breaker / working tool fall
The hydraulic breaker and the working tool are
heavy. If they topple over or roll down from where
they are stored, injury may be the result.
Store the hydraulic breaker and the tool so that they
cannot topple over or roll down.
7.1 Hydraulic breaker
The hydraulic breaker must be stored in an upright
position to avoid its seals being damaged.
7.1.1 Short storage
HProceed as follows in the case of storage for less
than eight weeks:
HRemove the hydraulic breaker from the carrier
(see chapter 6.6).
HStore the hydraulic breaker in a dry, properly
ventilated room.
HIf you can only store the hydraulic breaker in the
open air, cover it with plastic sheeting or tarpau
lins to protect it against the weather.
HStore the hydraulic breaker in an upright position
and such that it cannot topple over.
7.1.2 Long storage
Proceed as follows if storage is expected to be for
more than eight weeks:
HRemove the hydraulic breaker from the carrier
(see chapter 6.6).
HRemove the working tool (see chapter 8.3).
HGrease the working tool with chisel paste to pre
vent it corroding.
HGrease the wear bushes.
HDepressurise the piston accumulator
(see chapter 10.5.11).
HLeave the filling hose in the filling valve to let the
gas escape.
CAUTION!
Environmental damage due to hydraulic oil
Hydraulic oil is environmentally harmful and must not
penetrate the ground or the water.
Collect any hydraulic oil which runs out and dispose
of it in accordance with the applicable regulations to
avoid environmental hazards.
Oil may run out when pushing the percussion piston
up.
HRemove the covers from the connection hoses.
HSlide the percussion piston into its upper stroke
position.
HSlide the percussion piston retainer into the aper
ture for the working tool.
HInstall the retainer bars /retaining pin.
The percussion piston has now been locked in its
upper stroke position.
HSeal the connection hoses with the covers.
HSeal the aperture for the working tool with the
cover.
HPull the filling hose out of the filling valve.
HStore the hydraulic breaker in a dry, properly
ventilated room.
HStore the hydraulic breaker in an upright position
and such that it cannot topple over.
7.1.3 How to proceed after more than twelve months’ storage
The following measures are required to prevent pre
mature hydraulic breaker failure, after it has been
stored for over twelve months:
HDisassemble the hydraulic breaker as described
in the Repair Manual.
HCheck any parts liable to corrosion (percussion
piston, cylinder, control) for corrosion damage.
HRework or replace corroded parts.
HReplace all sealing elements.