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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 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 use of 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 heading "Personal protective equipment".
•
Use an approved lifting device to secure and lift heavy
machine parts. Also ensure that there is equipment to
secure machine parts mechanically.
48 – 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
•
Undo the air filter so that the overpressure in the tank
is discharged.
•
Discharge pressure in the hydraulic cylinders by
taking the load off the arm system by resting it on the
ground.
•
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.
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Troubleshooting
