Husqvarna DXR300 User manual

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DXR300
Operator′s manual
Please read the operator’s manual carefully and make sure you understand the
instructions before using the machine.

2 – English
KEY TO SYMBOLS
Symbols on the machine
WARNING! The machine can be a
dangerous tool if used incorrectly or
carelessly, which can cause serious or fatal
injury to the operator or others.
Please read the operator’s manual carefully
and make sure you understand the
instructions before using the machine.
Noise emission to the environment
according to the European Community’s
Directive. The machine’s emission is
specified in the Technical data chapter and
on the label.
Always wear:
• Tight-fitting, heavy-duty and comfortable
clothing that permits full freedom of
movement.
• Sturdy, non-slip boots or shoes.
• Protective gloves.
• Protective helmet.
• Hearing protection.
• Protective goggles or a visor.
• A breathing mask, gas mask or fresh air helmet must be
used when working in environments where the air can be
harmful to health.
WARNING! Live parts.
WARNING! Ensure that no material can fall
down and cause damage when you are
using the machine.
WARNING! Watch out for demolition material
becoming loose when cutting. Use personal
safety equipment and keep your distance.
WARNING! Always position yourself above
the machine when driving on a slope. There
is a risk of the machine tipping.
WARNING! Exercise particular caution when
working close to edges. Ensure that the
machine is stable and does not move closer
to the edge while the work is in progress.
Ensure that the underlying surface has
satisfactory bearing capacity.
Inspections and/or maintenance must
be carried out with the motor switched
off and the power cord disconnected.
Always connect the machine through
an ground fault circuit interrupter with
personal protection, i.e. an ground
fault circuit interrupter that trips at an ground fault of 30 mA.
Ensure that the power cable cannot
be run over. Take particular care
when moving or when the outriggers
are being retracted or extended. Risk
of electric shock.
The lifting equipment must be attached at all
the machine’s lifting points.
Keep your distance! Nobody is permitted to
be within the machine’s risk area when work
is underway. The machine’s risk area can
vary during the course of the work.
The machine can overturn during work.
During operation the machine must be
positioned as level as possible and the
outriggers must be fully extended.
This product is in accordance with applicable
EC directives.
Environmental marking. Symbols on the
product or its packaging indicate that this
product cannot be handled as domestic
waste.
By ensuring that this product is taken care of
correctly, you can help to counteract the
potential negative impact on the environment
and people that can otherwise result through
the incorrect waste management of this product.
For more detailed information about recycling this product,
contact your municipality, your domestic waste service or the
shop from where you purchased the product.

English – 3
KEY TO SYMBOLS
Explanation of warning levels
The warnings are graded in three levels.
WARNING!
CAUTION!
NOTICE!
!
WARNING! Used if there is a risk of serious
injury or death for the operator or damage to
the surroundings if the instructions in the
manual are not followed.
!
CAUTION! Used if there is a risk of injury to
the operator or damage to the surroundings
if the instructions in the manual are not
followed.
NOTICE! Used if there is a risk of damage to materials or
the machine if the instructions in the manual are not
followed.

4 – English
CONTENTS
Contents
KEY TO SYMBOLS
Symbols on the machine ............................................. 2
Explanation of warning levels ...................................... 3
CONTENTS
Contents ...................................................................... 4
INTRODUCTION
Dear Customer, ............................................................ 5
Good service ................................................................ 5
Serial Number .............................................................. 5
Applications ................................................................. 5
User responsibility ........................................................ 5
The manufacturer’s reservation ................................... 5
PRESENTATION
The machine’s functions .............................................. 6
PRESENTATION
What is what on the machine? ..................................... 7
HYDRAULIC SYSTEM
General ........................................................................ 8
Main pressure .............................................................. 8
Cooler .......................................................................... 8
HYDRAULIC SYSTEM
The machine’s hydraulic system .................................. 9
ELECTRICAL SYSTEM
General ........................................................................ 10
High-voltage circuit ...................................................... 10
Low-voltage circuit ....................................................... 10
ELECTRICAL SYSTEM
The machine’s electric system ..................................... 11
CONTROL SYSTEM
General ........................................................................ 12
Remote control ............................................................ 12
Signal transmission ...................................................... 12
Battery ......................................................................... 12
The machine’s software ............................................... 12
CONTROL SYSTEM
What is what on the remote control? ........................... 13
CONTROL SYSTEM
Symbols on the remote control .................................... 14
MACHINE´S SAFETY EQUIPMENT
General ........................................................................ 15
SAFETY INSTRUCTIONS
Protective equipment ................................................... 17
General safety warnings .............................................. 17
General working instructions ....................................... 18
External environmental factors .................................... 23
STARTING AND STOPPING
Before starting ............................................................. 24
Starting ........................................................................ 24
Stopping ....................................................................... 24
Inspection after work .................................................... 24
OPERATION
Operating modes ......................................................... 25
TOOLS
General ........................................................................ 28
Work mode ................................................................... 28
Changing tools ............................................................. 29
Storage ......................................................................... 29
SETTINGS
Track widener .............................................................. 30
Menu overview ............................................................. 31
Operational settings ..................................................... 31
WORK .......................................................................... 31
Service ......................................................................... 32
MAINTENANCE AND SERVICE
General ........................................................................ 36
Measures to take in advance of maintenance, service
and trouble shooting ..................................................... 36
After Maintenance and Service .................................... 36
Cleaning ....................................................................... 37
Service schedule .......................................................... 38
MAINTENANCE AND SERVICE
Service review .............................................................. 41
MAINTENANCE AND SERVICE
Mountings ..................................................................... 42
TROUBLESHOOTING
Error messages ............................................................ 47
Troubleshooting schedule ............................................. 51
TECHNICAL DATA
Guide values for mains connection .............................. 53
The hydraulic system pressure .................................... 53
Hydraulic fluid and lubricant ......................................... 53
Preset limit values ........................................................ 53
Technical data .............................................................. 54
EC DECLARATION OF CONFORMITY
EC Declaration of Conformity ....................................... 57

English – 5
INTRODUCTION
Dear Customer,
Thank you for choosing a Husqvarna product!
This operator’s manual is a valuable document. Make sure it
is always at hand at the work place. By following its
instructions (on operation, service, maintenance, etc.) you
will significantly extend the life of the machine and even its
second-hand value.
Good service
Husqvarna products are sold all over the world and ensures
that you, the customer, get the best support and service.
When you need spare parts or advice on service or warranty
issues, go to www.husqvarnacp.com and find your local
service agent.
Serial Number
The machine’s serial number is given on the hydraulic tank
under the left top cover. Stated on the plate are:
• The machine’s type designation
• Weight
• The manufacturer’s type number
• The machine’s serial number
• Manufacturer
The hydraulic pump and hydraulic motors are fitted with rating
plates that indicate article number and the machine
manufacturer’s manufacture number.
Please state the type designation and serial number when
ordering spare parts and for service matters.
Applications
The machine is intended for:
•Demolishing, fragmenting, cutting, detaching, separating,
picking up and distributing parts of buildings and
constructions.
• Use in risky environments where the operator can control
the machine without being present within the risk area.
• Use both indoors and outdoors.
• Use in dangerous environments where the machine is
exposed to risk of collapse, hazardous substances, great
heat, etc.
The machine is NOT intended for:
• Use in areas classified as 'explosive”.
• Use in water where the level risks damaging the
machine’s equipment.
• Operation on a public highway.
• Use as a towing vehicle, means of transport or lifting
device.
• Use in environments where there is danger for the
operator or the life and health of people in the vicinity.
• Use in applications or environments that are not
compatible with the recommendations in this Operator’s
Manual.
User responsibility
It is the owner’s/employer’s responsibility that the operator
has sufficient knowledge about how to use the machine
safely. Supervisors and operators must have read and
understood the Operator’s Manual. They must be aware of:
• The machine’s safety instructions.
• The machine’s range of applications and limitations.
• How the machine is to be used and maintained.
National legislation could regulate the use of this machine.
Find out what legislation is applicable in the place where you
work before you start using the machine.
The manufacturer’s reservation
Husqvarna Construction Products reserves the right to alter
specifications and instructions for the machine without prior
notification. The machine may not be modified without the
manufacturer’s written permission. If the machine is modified
after delivery from Husqvarna Construction Products and
without the manufacturer’s written permission, it is the
owner’s responsibility.
Modification can entail new risks for operators, the machine
and the surroundings.These can include impaired strength or
inadequate protection. It is the responsibility of the owner to
specify which alterations are going to be made and to contact
the supplier of the machine for approval before commencing
the modifications.
All information and all data in the Operator’s Manual were
applicable at the time the Operator’s Manual was sent to print.
Contact
Husqvarna Construction Products, Jons väg 19, SE-433 81
Göteborg, Sweden.

6 – English
PRESENTATION
The machine’s functions
The machine’s functions are operated by means of interaction
between the hydraulic system, the electric system and the
control system.
A brief description of the machine’s functions follows below.
Arm system
The arm system is divided into three parts in order to provide
extensive movement, a long reach and compactness.
Expanding shafts minimize the risk of play in the joints.
By running cylinder 1 and cylinder 2 in parallel, the machine’s
reach can be modified without moving the machine.
Tower
The tower has unlimited rotation, which means that is
possible to work in several directions without having to move
the machine. The machine is equipped with a slew brake.
When the rotating function is not activated, the function is
braked by means of passive brakes.
Caterpillar tracks
The caterpillar tracks are driven individually by hydraulic
motors. The machine can be turned by operating the
caterpillar tracks at different speeds. Operating the tracks in
different directions enables the machine to make tight
manoeuvres. When the drive function is not activated the
passive brakes lock the drive motors.
In transport mode, the caterpillar tracks and tower can be
manoeuvred simultaneously. The function can be used, for
example, when the machine is being operated in confined
spaces.
Outriggers
The main function of the outriggers is to give the machine
stability. They must always be used when working with the
machine.
Tools
The machine should be fitted with tools that are appropriate
for the tasks that are to be carried out. The weight and
performance requirement of the tool is decisive in
ascertaining whether it is suitable for use with the machine.
Further information is available in the 'Tools” and 'Technical
data” chapters and the tool supplier’s instructions.
External tool
The machine has been prepared with connections for
external hand tools for the machine’s hydraulic system.
NOTICE! The machine’s rotating function must not be
subject to overload, e.g. caused by tools that exceed the
weight limit.

English – 7
PRESENTATION
What is what on the machine?
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1 Emergency stop
2 Hydraulic tank
3 Lubrication pump for lubricating the hammer
4Arm1
5Arm2
6Arm3
7 Cylinders
8 Valve block
9 Slew motor
10 Tool attachment
11 Gear ring
12 Tensioning wheel
13 Screws for widening track
14 Support wheel
15 Drive motor
16 Outrigger foot
17 Outriggers
18 Counter weight
19 Electrical cabinet
20 Control module
21 Cable arm
22 Warning light
23 Communication cable socket
24 Horn
25 Base plate
26 Lifting eye bolts
27 Electric motor
28 Radio module
29 Track unit
30 Hydraulic pump
31 Chassis beam
32 Cylinder guard
33 Inspection covers
34 Working lights
35 Track widener
36 Operator′s manual
37 Battery charger
38 Remote control
39 Communication cable
40 Harness

8 – English
HYDRAULIC SYSTEM
General
The task of the hydraulic system is to operate the machine’s
functions by means of hydraulic pressure and flow. The
system consists of hydraulic pump, tank, cooler, hydraulic
motor, hydraulic cylinders, filters and valves of various kinds.
Hoses or pipes connect the components with each other.
Valves are used to control the hydraulic system’s pressure,
volume rate of flow and direction.Pressure control valves limit
or reduce the pressure to the value required.Volume control
valves affect the hydraulic oil’s flow and thereby the speed of
the functions. Direction control valves direct the hydraulic oil
to the machine’s different functions.
The hydraulic pump is of the variable displacement type and
delivers a flow of 0-65 l/min (0-17 gal/min).
Main pressure
The hydraulic system has different pressure levels.
• Track tension and outriggers up 200 bar.
• Hydraulic hammer 165 Bar (22 kW)
• Standard pressure is 200 Bar
• Increased main pressure is 250 Bar
Increased main pressure is used when the outriggers are
extended and when running arm system inward in parallel
motion.
If several functions are used at the same time the pressure
will be set to lowest value.
Cooler
The cooler has an integrated bypass valve that protects
against overpressure in conjunction with, forÊexample, cold
start.

English – 9
HYDRAULIC SYSTEM
The machine’s hydraulic system
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1 Air filter
2 Lever indicator
3 Oil filter
4 Hydraulic tank
5 Cylinder 1
6 Cylinder 4
7 Cylinder 3
8 Cylinder 2
9 Valve block 1
10 Slew motor
11 Valve block 2
12 Cylinders for outriggers
13 Sight gauge
14 Valve - release track tension
15 Accumulator - track tension
16 Drive motor
17 Support wheel
18 Cylinders for track tensioning
19 Tensioning wheel
20 Hydraulic pump
21 Swivel
22 Hose for oil filling
23 Filling pump
24 Intermediate piece
25 Cooler

10 – English
ELECTRICAL SYSTEM
General
The electric system consists of a high-voltage circuit and a
low-voltage circuit.
High-voltage circuit
High-voltage is used as a power source for both the electric
motor and the low-voltage circuit. An automatic phase
rotation change-over switch ensures that the electric motor
has the correct rotation direction.
Power supply
The power supply from the main must be sufficiently powerful
and constant to ensure that the electric motor runs without
problems.
Too high or too low voltage causes the electric motor’s power
consumption, and consequently also its temperature, to
increase until the motor’s safety circuit trips.
Fuses
The fuses in the distribution box protect the electrical system
in conjunction with overloading or breakdown.The power
outlet must be correctly fused with respect to the electric
motor, the length of the power cable and the area of the power
cable’s conductor. The table 'Guide values for mains
connection” in the 'Technical data” section shows which fuse
is required for the electric motor.
The machine is equipped with Softstart and can be started
with most types of fuses.
If a fuse keeps blowing, there is a fault in the electrical system
or in the machine that is connected to it. Before restarting the
machine the source of the fault must be removed.
Power cable
The machine is connected to the mains with a 3 phase power
cable. It is very important that the cable that is used is
correctly dimensioned, i.e. that it has the correct cross-
sectional area in relation to the length of the conductor in
order to counteract drops in voltage.The guide values for the
cable’s size are set out in the table 'Guide values for mains
connection” in the 'Technical data” section.
Low-voltage circuit
The high-voltage current is reduced to low-voltage in an AC/
DC module. It is used to supply power to the control system
and functions such as work lighting and refilling pump.