Change Of Work Attachments, Maintenance, Repair - Terex TL120 Operating Instructions Manual

2.17 Change of work attachments,
maintenance, repair
Earth-moving machines are only to be converted,
maintained or serviced under the guidance of a
suitable person designated by the plant operator and
following the manufacturer's Operating Instructions.
After every change of work attachments, the driver
must convince himself that the quick-mount hitch is
correctly fastened and locked.
Work on e.g.
– braking,
– steering,
– hydraulic and
– electric systems
of the machine is only to be carried out by expert
personnel specially trained in these areas.
Stability must be ensured during all type of work on
the machine at all times.
The machine must be suitably secured by chocks so
that it cannot roll away whenever work is performed,
particularly under the machine.
The work equipment must be secured against
movement by lowering it to the ground or equivalent
measures, e.g. cylinder supports, trestles. As long as
the engine is running, the unprotected working and
articulation range must not be entered.
When jacking up earth-moving machines, all jacking
devices must be positioned so that they cannot slip.
Jacks must be positioned and applied absolutely
straight, without tilting.
Raised earth-moving machines must be supported by
suitable structures such as crosswise stacks of
planks, square timbers or steel trusses.
Earth-moving machines which are raised using
operating equipment must be stabilized by a
supporting structure immediately after lifting. Work
under raised machines which are only supported by
their hydraulics is forbidden.
The engine/motor(s) must be turned off prior to all
maintenance and repair work. This requirement can
only be ignored in the case of maintenance or repair
work which cannot be performed without the
engine/motor(s) running.
When performing maintenance and repair work on
the hydraulic system, it must be relieved of pressure.
With the engine turned off, lower the work equipment
to the ground and actuate all hydraulic control levers
until there is no pressure left in the hydraulic system.
Operating Instructions Wheel Loader TL120
Safety and Accident Prevention
• Before working on the electric system or when
performing arc-welding on the machine, the
connection to the battery must be disconnected.
• When disconnecting the battery, first the negative
pole then the positive pole must be disconnected.
The battery must be re-connected in reverse
order.
• During repair work around the battery, it must be
covered with insulating material. Tools should
never be placed on or near the battery.
Protective devices of moving machine parts are only
to be opened or removed after the drive has been
switched off and cannot be switched on again by
unauthorized persons. Protective devices are e.g.
engine/motor covers, doors, protective grating, trim.
Upon completion of assembly, maintenance or repair
work, all protective devices must once more be
attached in the proper manner.
Load-bearing parts of earth-moving machines are
only to be welded following consultation with the
manufacturer and in accordance with recognized
welding principles.
Protective structures (ROPS, FOPS) are not to be
welded or drilled in any way.
Before commencing work on the hydraulic system,
the operating pressure, pilot pressure, back pressure
and pressure inside the tank must be let off.
Swallowing lubricants, or long and repeated skin
contact, can be hazardous to health. Used properly,
there is no particular danger to health. The safety
specification sheets from the oil companies must be
observed.
Only the hoses specified by the manufacturer may be
used.
Hydraulic hoses must be routed and assembled by
expert personnel.
Smoking and naked flames are prohibited in the
vicinity of fuel or batteries.
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