HYCON HRD20 User manual

Hydraulic
Rock Drill
HRD20
From serial
number 3195
Revised
18.10.2010
Prior to Operation
We thank you for choosin a
HYCON rock drill.
To ensure smooth operation
and lon -lastin performance
of your new tool, we re-
commend you to study this
operatin manual carefully and
pay special attention to the
chapters about
Safety and Service
Precautions
and
Oil Flow and Pressure
We hope you will be satisfied
with your new HYCON rock
drill.
Best re ards
HYCON A/S
HYCON A/S
Juelstrupparken 11
DK-9530 Støvring
Denmark
Tel: [phone]
Fax: [phone]
Mail [email protected]k
www.hycon.dk

1
Contents
Page
Safety Precautions .............................................................................................. 2
Oil Flow and Pressure ......................................................................................... 4
Startin Instructions ........................................................................................... 4
Technical Data ................................................................................................... 5
Performance Chart ............................................................................................. 6
Connection to Hydraulic Power Sources ............................................................... 7
Service and Maintenance .................................................................................... 8
Oil Types ........................................................................................................... 9
EC-Declaration of Conformity ............................................................................. 10
Warranty Conditions ......................................................................................... 11
Spare Parts List ................................................................................................ 12

2
Safety Precautions
•Read the rock drill and power source operatin manuals prior to use.
•Only use the rock drill in accordance with the local workin re ulations on allowed
workin time
•Check the oil flow to the rock drill. The oil flow may not exceed 30 l.p.m./max.
150 bar.
•A fine jet of oil at pressure can penetrate the skin. It is therefore important never
to use your fin ers to check for oil leaks and never to hold your face close to su-
spected leaks – use a piece of cardboard instead. If oil has penetrated the skin,
you should et medical treatment immediately.
•Never leave the rock drill when connected to the powerpack.
•Always use correct tool
•Make sure that the tool is firmly fastened
•Always use approved hoses. Contact your dealer, if necessary.
•The operator must pay extra attention and show caution when workin in difficult
workin areas, such as slopes and other dan erous nature of the round. Do not
reach too far with the rock drill, but always maintain a ood footin and keep
your balance.
•The operator must be properly trained in usin the rock drill or under supervision
of a qualified instructor.
•The operator must always use protective o les, earplu s, hard hat and shoes
when operatin the rock drill.
•Never wear loose clothin as it may et entan led in the movin parts of the rock
drill.
•Inspection or cleanin of the rock drill, chan e of tool or disconnection of hoses
may never be done while the rock drill is connected to the powerpack, as
unintentional activation can cause severe dama e.
•Always connect hoses to the rock drill before startin the powerpack. Be sure that
all couplin s are ti ht.

3
•The rock drill may not be operated if the oil temperature is above 80 C°.
Operation at hi her temperatures may result in the rock drill ettin warmer than
normal and the operator risks ettin burnt on it.
•To avoid all personal injury and dama e to material, all repair, maintenance and
service work must be carried out by authorized or properly trained persons only.
•A rock drill not in use should always be kept in a safe and dry place.
•The rock drill may never be operated without tool, or without bein held a ainst
the workin surface, as this may result in overload of the rock drill.
•Always make sure that the rock drill labels and warnin si ns are le ible.
•Always use hoses, couplin s and spares as such recommend by HYCON A/S.
•Repairs may only be carried out by experienced personnel.
•Make sure that all couplin s are cleaned before connection.
•Always disconnect the hydraulic circuit before connectin or disconnectin the
rock drill. If this is not done, there is a risk of dama e to the quick release coup-
lin s or the hydraulic system ettin superheated.
IMPORTANT
GTIGT

4
Oil Flow and Pressure
Your new HYCON rock drill is desi ned for a certain oil flow, workin pressure and
maximum pressure. A too hi h oil flow and/or a too hi h pressure results in overload
of the rock drill, meanin that the lifetime of your new HYCON tool will not be as
expected, and that your service and repair costs will be too hi h.
It is important to check that the breaker is not supplied with an oil flow beyond its
desi n capacity, that the workin pressure is correct and that the maximum allowed
pressure is not exceeded.
On pa e 5 you will find a complete survey of the technical data, and on pa e 7 there
is a uide to connection to hydraulic power sources and how to ensure that the rock
drill is not overloaded.
Starting Instructions
S AR
•Insert tool.
•Connect hoses – clean couplin s before connection.
•Set the power source on ”ON”.
•Get a ood footin before you start drillin to avoid stumblin durin
operation.
•Press the drill end a ainst the material to be drilled, then press the control
lever down towards the handle and the rock drill will start drillin .
S OP
•Let o of the tri er lever, and the rock drill will stop workin .

5
echnical Data
Weight w/o hoses and tool 20 k
Dimension Total len th: 626 mm
Total width: 412 mm
Oil flow 25-30 l.p.m.
Rotation speed 0-400 1/min
Rotation direction
(seen from the top) Counterclockwise
Rotation torque 15 Nm
Striking energy 50 Joule
Working pressure 115 bar
Max return pressure 10 bar
Pressure relief valve
on power source Max. 150 bar
Max. oil temperature 80° C
ool chuck size 22x108 mm
Built in compressor air supply Max. 0.08 m³/min. / 2 bar
Drilling performance ø45 - 3 m deep
For drillin holes deeper than 800 mm,
the HRD20 must be rebuilt for
external air supply
Under water use The HRD20 must be rebuilt for
external air supply
Blow frequency/rotations 4 settings 0 1 2 3
Blows 1/min 1500 1350 1100 900
Rotations rpm 0 200 300 400
Noise level 1 m L
PA
95 dB
Noise level L
WA
107 dB
Vibration level 23.6 m/s²

6
Performance Chart
8
20
25
0
5
10
15
20
25
30
HRD20
3/8" hose diameter
1/2" hose diameter
5/8" hose diameter
HRD20 Rock Drill
Maximum length of different sizes of hoses
Pressure from power pack: 150 bar , Flow: 28 l p m , zero elevation, 2 set couplings per 10 m hose

7
Connection to Hydraulic Power Sources
The rock drill can be connected to various hydraulic power sources, such as excava-
tors, trucks, loaders, tractors etc., and of course HYCON powerpacks, the desi n of
which ensures your new HYCON rock drill the absolute best workin conditions.
It is important that the rock drill is not subjected to an oil flow and a workin pres-
sure beyond its desi n capability.
Check the oil flow and the workin pressure by means of test equipment. The test
equipment should comprise a pressure au e, a flow meter and a valve for adjust-
ment of pressure.
Make sure that:
•the oil supply is not too hi h
•the workin pressure is not too hi h
•the return pressure is not too hi h
•the pressure relief valve is not set hi her than 150 bar
•the internal diameter of the hoses is sufficient (min. ½”)
•all couplin s are clean
•the power source is equipped with an oil filter of min. 25 Micron
Hoses with too small internal diameter and/or defect couplin s cause the rock drill to
work with incorrect workin pressure.
Your dealer can help you check this.
If the output of the power source is too hi h:
•the power source must be adjusted to correct output
•or you can choose to mount a HYCON oil flow divider to protect the rock drill
a ainst overload
•or you can choose one of our HYCON powerpacks. Your dealer can uide you
in choosin the ri ht powerpack.
In case of doubt, please contact your dealer or HYCON A/S.

8
Service and Maintenance
Service/Maintenance Daily Weekly Yearly
Check couplin s and clean
carefully X
Check hoses X
Check accumulator
X
Clean air filter X
NB. At service/repair it is important to mount the hoses correctly. The feed line from
the power source must be mounted at the upper inlet and the return line at the
lower outlet.
MAIN ENANCE
1) Check hydraulic oil on a re ular basis to ensure it is always clean. If the oil sticks
or chan es the colour, replace it.
2) Before startin , check if oil volume is sufficient as it decreases by connectin and
disconnectin the hoses.
3) The air filter protects the built-in compressor from suckin in dust. Take out the
element and the filter from the filter housin and clean them daily. The ne li-
ence of doin this causes fast wear of the compressor cylinder, piston rin and
valve.
Element
Filter
Filter cover

9
Inspection time
Inspection point
200
hours
or 1 year
400 hours
or 2 years
Over 3
years
Accumulator as pressure check
O
Replacement of accumulator diaphra m
O
Replacement of U
-
cup packin
O
Replacement of valve rod o
-
rin
O
Replacement of compressor piston rin
O
Replacement of ear case rease
O
Replacement of motor shaft o
-
rin
O
Replacement of every o
-
rin
O
Oil ypes
The HYCON rock drill uses standard hydraulic oil, i.e. all types of mineral oil and
biode radable oil, which comply with the followin values:
Recommended viscosity
20
-
40 cSt
Permitted viscosity
15
-
1000 cSt
Viscosity index
Min. 100
Temperature area
-
20° to +70° C
If usin biode radable oil, we recommend the use of oil based on rape. Other types
of oil can be a ressive towards the seals. If you are in doubt, please ask your
dealer.

10
EC-Declaration of Conformity
From serial No.
We hereby declare that HRD 20 hydraulic rock drill 3195
(service wei ht 25 k )
is manufactured in conformity with the EC Directive 98/37/EC.
HYCON A/S
Juelstrupparken 11
DK-9530 Støvrin
Denmark
Henrik Steen
General Mana er
15.04.2004
HYCON A/S
Juelstrupparken 11
DK-9530 Støvrin
Denmark
Tel: [phone]
Fax: [phone]
Mail [email protected]
www.hycon.dk

11
Warranty Conditions
We rant 12 months warranty from the first date of operation – however, not more
than 18 months from the date of delivery.
The warranty applies to faults that can be related to construction and production
errors.
Faults caused by incorrect operation, incorrect handlin , lack of maintenance or the
like, will not be accepted as warranty.
The warranty covers the parts necessary for repair and the su ested avera e time
needed for repair.
For further warranty details, please contact your local dealer.