Maintenance And Service; General; Measures To Take In Advance Of Maintenance, Service And Trouble Shooting; After Maintenance And Service - Husqvarna DXR300 Operator's Manual

General

WARNING! Most accidents involving
!
machines occur during trouble shooting,
service and maintenance as staff have to
locate themselves within the machine's risk
area. Prevent accidents by being alert and
by planning and preparing the work.
If service operations or trouble shooting
does not require the machine to be switched
on, the power cable must be removed and
positioned so that it cannot be connected by
mistake.
If servicing operations require the motor to
be in operation, be aware of risks when
working with or in the vicinity of moving
parts.
Perform maintenance and servicing in accordance with this
Operator's Manual to avoid shutdowns and to maintain the
machine's value.
Maintain the machine's supplementary equipment and tools
as well.
The user must only carry out the maintenance and service
work described in this Operator's Manual. More extensive
work must be carried out by an authorized service workshop.
Use only original spare parts for repairs.
Measures to take in advance of
maintenance, service and trouble
shooting
General
• Ensure that the machine is situated in a safe area.
• Place the machine on a flat surface with the arm system
and outriggers down.
• Several components heat up during work with the
machine. Do not commence any servicing or
maintenance tasks until the machine has cooled.
• Set out clear signs to inform persons in the vicinity that
maintenance work is in progress.
• Ensure that the working area is sufficiently illuminated to
create a safe working environment.
• Ascertain the location of fire-extinguishers, medical
supplies and emergency telephone.
Protective equipment
• Wear personal protective equipment. See instructions
under the "Personal protective equipment" heading.
• Use an approved lifting device to secure and lift heavy
machine parts. Also ensure that there is equipment to
secure machine parts mechanically.
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English

MAINTENANCE AND SERVICE

Working environment
• The area around the machine must be free of dirt in order
to minimize the risk of slipping.
• Clean the machine. Dirt in the hydraulic system leads
rapidly to consequential damage and stoppages.
• Ensure that there is a sufficiently large working area.
Discharge stored energy
• Turn off the motor.
• Put the main switch in the OFF position (O).
• Disconnect the power cable and place it so that it cannot
be connected by mistake.
• When maintaining the track unit, discharge the pressure in
the accumulator. Refer to the directions under 'Functional
inspection" in the 'Maintenance and service" section.
Discharge pressure in the hydraulic system
• Discharge pressure in the hydraulic cylinders by taking
the load off the arm system by resting it on the ground.
• Undo the air filter so that the overpressure in the tank is
discharged.
• Wait until the pressure has decreased via internal
leakage.
• When maintaining the track unit, discharge the pressure in
the accumulator. Refer to the directions under 'Functional
inspection" in the 'Maintenance and service" section.
Dismantling
• When dismantling machine parts, heavy components can
start moving or fall down. Secure moving parts
mechanically before loosening screw joints or hydraulic
hoses.
• Pipe and hose couplings can remain pressurized despite
the motor being switched off. Always work on the
assumption that the hoses are under pressure when
dismantling. Take great care when undoing connections
and use appropriate personal protective equipment.
• Make sure to mark all cables and hoses that are undone
in conjunction with service and maintenance in order to
ensure correct reassembly.

After Maintenance and Service

Test running the machine
• The machine's movements can be defective if a terminal,
cable or hose is incorrectly mounted. Exercise caution
during test runs and be prepared to turn the machine off
immediately in the event of a fault.