Husqvarna DXR300 Operator's Manual page 20

Manoeuvring
General
• If several machines are used at the same workplace there
is a risk of mixing up the remote controls.
Switch on the current to the remote control and the
machine. Press the horn to see which machine is
connected to the remote control. The machine will beep
and flash three times. Do not activate the remote control
before you have ensured that the correct machine is being
operated.
• Wait until the remote control has been turned off and the
motor has stopped before you enter into the machine's
risk area.
• Never leave the machine unsupervised with the motor
running.
• The machine can overturn during work. During operation
the machine must be positioned as level as possible and
the outriggers must be fully extended.
• In some cases it can be difficult to determine which end of
the machine is the front and which is the rear. Look at the
direction markings on the sides of the machine's tracks to
avoid incorrect operation.
• When work is finished, operate the arm to rest against the
ground before turning off the machine.
Outriggers
• When the outriggers are folded, the arm must be retracted
to minimize the risk of the machine overturning.
• The machine's outriggers can leave the ground,
especially when working with a hydraulic hammer or
bucket. The higher the machine rises the greater the load
the rest of the support mechanism is subject to.
• When working with a hydraulic hammer there is an
increased risk of the machine tipping or landing with a
large force on the outrigger on impact. Take this risk into
account and institute appropriate safety measures to
avoid any personal injury or mechanical damage.
Rotation function
• If there is a breakdown in the machine's rotation
mechanism the machine's upper part may rotate freely,
potentially causing personal injury or mechanical
damage. Keep your distance.
• The machine is most stable when working directly
forwards or backwards. When the machine's upper part
rotates to the side, the outriggers should be down and the
arm system manoeuvred so that it is as close to the
ground as possible.
• In some cases it can be difficult to predict the direction of
rotation. Operate the turning motion carefully until you
have apprehended the direction of rotation.
Arm system
• Do not use the arm system and the rotation function for
striking, demolishing or scraping.
• Do not work with the arm if the machine's outriggers are
folded. The outriggers provide stability and reduce the risk
of the machine tipping.
20 –
English
SAFETY INSTRUCTIONS
• When the arm system's reach is being used, the load
increases as does the risk of tipping. Position the machine
as close to the working object as possible.
• Do not secure the machine to fixed objects, e.g. walls, to
increase the force on the working object. Both the
machine and the tool can be subject to overloading.
• Do not work with the machine's cylinders in the inner or
outer end positions to avoid overloading. Leave a few
centimetres to the maximum position. The hydraulic oil
then has a greater capacity to alleviate impacts and
vibrations.
• There are two working positions that put a lot of strain on
individual cylinders.
Cylinders 1 and 2 are in their outer positions and the
hammer is working in the upward direction. Never operate
the cylinders to their end positions.
Cylinder 3 is in its outer position and the hammer is
working in the downward direction. Never operate the
cylinders to their end positions.
Proximity to edges
• Inadequate surfaces, incorrect operation, etc. can cause
the machine to slide. Exercise particular caution when
working close to shafts, beside trenches or when working
at height.
• Always anchor the machine and loose tools when working
close to edges.
• Ensure that the machine is stable and does not move
closer to the edge while work is in progress.
• Ensure that the underlying surface has satisfactory
bearing capacity. Vibrations affect bearing capacity.