HYCON HRD28X User manual

Operating Manual
Hydraulic Rock Drill
HRD28X
From serial
number 17236
Revised
01.06.2020
Prior to Operation
We thank you for choosing a
HYCON rock drill.
To ensure smooth operation
and long-lasting performance
of your new tool, we re-
commend you to study this
operating manual carefully and
pay special attention to the
chapters about
Safety and Service
Precautions
and
Service/Maintenance
We hope you will be satisfied
with your new HYCON rock
drill.
Best regards
HYCON A/S
HYCON A/S
Juelstrupparken 11
DK-9530 Støvring
Denmark
Tel: [phone]
Fax: [phone]
Mail [e-mail]
www.hycon.dk

Side 1af 11
Contents
Page
Safety Precautions ..............................................................................................2
Oil Flow and Pressure..........................................................................................4
Starting Instructions............................................................................................4
Technical Data ....................................................................................................5
Performance Chart ..............................................................................................6
Integrated Air Supply ..........................................................................................6
Connection to Hydraulic Power Sources ................................................................7
Service and Maintenance .....................................................................................8
Oil Types ............................................................................................................9
EC-Declaration of Conformity .............................................................................10
Warranty Terms............................................................................................... 11
Spare Parts List................................................................................................ 13

Side 2af 11
Safety Precautions
•Read the rock drill and power source operating manuals prior to use.
•Only use the rock drill in accordance with the local working regulations on allowed
working time
•Check the oil flow to the rock drill. The oil flow may not exceed 30 l.p.m.
•A fine jet of oil at pressure can penetrate the skin. It is therefore important never
to use your fingers 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 get 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 working in difficult
working areas, such as slopes and other dangerous nature of the ground. Do not
reach too far with the rock drill, but always maintain a good footing and keep your
balance.
•The operator must be properly trained in using the rock drill or under supervision
of a qualified instructor.
•The operator must always use protective goggles, earplugs, hardhat and shoes
when operating the rock drill.
•Never wear loose clothing as it may get entangled in the moving parts of the rock
drill.
•Inspection or cleaning of the rock drill, change of tool or disconnection of hoses
may never be done while the rock drill is connected to the powerpack, as uninten-
tional activation can cause severe damage.
•Always connect hoses to the rock drill before starting the powerpack. Be sure that
all couplings are tight.

Side 3af 11
•The rock drill may not be operated if the oil temperature is above 70 C°. Operation
at higher temperatures may result in the rock drill getting warmer than normal and
the operator risks getting burnt on it.
•To avoid all personal injury and damage 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 being held against
the working surface, as this may result in overload of the rock drill.
•Always make sure that the rock drill labels and warning signs are legible.
•Always use hoses, couplings and spares as such recommend by HYCON A/S.
•Repairs may only be carried out by experienced personnel.
•Make sure that all couplings are cleaned before connection.
•Always disconnect the hydraulic circuit before connecting or disconnecting the rock
drill. If this is not done, there is a risk of damage to the quick release couplings or
the hydraulic system getting superheated.
•Using the rockdrill releases large amounts of dust into the air, this dust exposure
can cause health issues, and damage to the rock drill. We recommend using
vacuum systems to keep this dust exposure to a minimum. The operator should
always use proper safety equipment when using the rock drill.
IMPORTANT
GTIGT

Side 4af 11
Oil Flow and Pressure
Your new HYCON rock drill is designed for a certain oil flow, working pressure and
maximum pressure. A too high oil flow and/or a too high pressure results in overload
of the rock drill, meaning that the lifetime of your new HYCON tool will not be as
expected, and that your service and repair costs will be too high.
It is important to check that the rock drill is not supplied with an oil flow beyond its
design capacity, that the working pressure is correct and that the maximum allowed
pressure is not exceeded.
On page 5 you will find a complete survey of the technical data, and on page 7 there
is a guide to connection to hydraulic power sources and how to ensure that the rock
drill is not overloaded.
Starting Instructions
START
•Insert tool.
•Connect hoses –clean couplings before connection.
•Set the power source on ”ON”.
•Turn on air supply
•Get a good footing before you start drilling to avoid stumbling during operation.
•Press the drill end against the material to be drilled, then press the control
lever down towards the handle and the rock drill will start drilling.
STOP
•Let go of the trigger lever, and the rock drill will stop working.

Side 5af 11
Technical Data
Weight w/o hoses and lubricants 27,5 kg
Service weight 30 kg
Dimension Total length: 708 mm
Total width: 460 mm
Oil flow Max. 30 l.p.m.
Rotation speed 320 rpm
Rotation direction
(seen from the top) ClockWise
Rotation torque 45 Nm
Striking energy 55 Joule
Blow frequency 40 Hz
Working pressure 150 bar
Max return pressure 15 bar
Pressure relief valve
on power source Max. 172 bar
Max. oil temperature 70° C
Tool chuck size 22x108 mm
Required air supply 200 liter/min
Vibration level 3 axis (ISO 20643) 13.0 m/s²
Uncertainty (K) 2.5 m/s²
Sound power level LWA guaranteed 105 dB

Side 6af 11
Performance Chart
External Air Supply
The drill needs an external air supply for flushing.
Inadequate air flushing will significantly reduce the drilling performance and reduce
lifespan of drill rods. An air compressor with a flow of 200 liters per minute / 7 cfm
will be enough for smaller drilling jobs.
8
20
25
0
5
10
15
20
25
30
HRD20
3/8"hose diameter
1/2"hose diameter
5/8"hose diameter
HRD28X Rock Drill
Maximum length of different sizes of hoses
Pressure from power pack: 150 bar., Flow: 30 l.p.m., zero elevation, 2 set couplings per 10 m hose.
HRD30

Side 7af 11
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 design of
which ensures your new HYCON rock drill the absolute best working conditions.
It is important that the rock drill is not subjected to an oil flow and a working pressure
beyond its design capability.
Check the oil flow and the working pressure by means of test equipment. The test
equipment should comprise a pressure gauge, a flow meter and a valve for adjust-
ment of pressure.
Make sure that:
•the oil supply is not too high
•the working pressure is not too high
•the return pressure is not too high
•the pressure relief valve is not set higher than 172 bar
•the internal diameter of the hoses is sufficient (min. ½”)
•all couplings are clean
•the power source is equipped with an oil filter of min. 25 Micron
Hoses with too small internal diameter and/or defect couplings cause the rock drill to
work with incorrect working pressure.
Your dealer can help you check this.
If the output of the power source is too high:
•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
against overload
•or you can choose one of our HYCON powerpacks. Your dealer can guide you
in choosing the right powerpack.
In case of doubt, please contact your dealer or HYCON A/S.

Side 8af 11
Service and Maintenance
Service/Maintenance
Daily
Monthly
Check couplings and clean
carefully
X
Check hoses
X
Grease gearbox
X
MAINTENANCE
1) Check hydraulic oil on a regular basis to ensure it is always clean. If the oil sticks
or changes the colour, replace it.
2) Before starting, check if oil volume is sufficient on the power source:
3) Grease gear box

Side 9af 11
Service
Your HYCON dealer must carry out the following service jobs:
Inspection time
Inspection point
200 hours
or 1 year
400 hours
or 2 years
Over 3
years
Accumulator gas pressure check
O
Replacement of accumulator diaphragm
O
Replacement of every seals and o-rings
O
Oil Types
The HYCON power packs use standard hydraulic oil, i.e. all types of mineral oil and
biodegradable oil, which comply with the following values:
Ambient temperature range
Below 10°C
50°F
10 … 30°C
50 … 68°F
Above 30°C
68°F
Recommended oil viscosity grade
VG 32
VG 46
VG 68
Recommended oil cleanliness
ISO 4406 /19/16 / NAS 1638 10
Permitted viscosity
cSt
10 –600
Viscosity index
Minimum
100
Oil temperature area
°C /°F
-20 to 70 / -4 to 158
If using biodegradable oil, we recommend the use of oil based on rape. Other types of
oil can be aggressive towards the seals. If you are in doubt, please ask your dealer.

Side 10 af 11
EC-Declaration of Conformity
From serial No.
We hereby declare that HRD28X hydraulic rock drill 17236
(service weight 30 kg)
is manufactured in conformity with the EC Directive 2006/42/EC.
HYCON A/S
Juelstrupparken 11
DK-9530 Støvring
Denmark
Martin Møller
Managing Director
01.06.2020
HYCON A/S
Juelstrupparken 11
DK-9530 Støvring
Denmark
Tel: [phone]
Fax: [phone]
Mail [email protected]
www.hycon.dk

Side 11 af 11
Warranty Terms
We grant 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 handling, lack of maintenance or the
like, will not be accepted as warranty.
The warranty covers the parts necessary for repair and the suggested average time
needed for repair.
For further warranty details, please contact your local dealer.