2 Safety and accident prevention
12
TW85
2.16 Crane operations
Load hook applications are the hoisting,
transporting and lowering of loads with the aid of a
fixing device (rope, chain, etc.), whereby the
assistance of personnel is required to attach and
release the load. Such work covers e.g. the lifting
and lowering of pipes, tubbing rings or containers.
Earth moving equipment may only be operated in
the context of using lifting gear if it is equipped and
approved for such work.
Earth moving equipment may only be used for
lifting gear applications if it is equipped with the
following safety devices:
•
Secure attachment of loading implements
•
Table of carrying capacity
•
Overload warning device
•
Hose-rupture safety valve on boom cylinder
If earth-moving machines are used for load hook
applications, personnel attaching loads is only to
approach the boom from the side and with the
machine operator’s permission. The machine
operator is only to give his permission if the earth-
moving machine is standing still and the work
equipment is not in motion.
Personnel guiding the machine and attaching
loads must always remain in the machine
operator’s field of vision.
Only use certified fixing devices (ropes, chains,
shackles) which are of adequate dimensions.
Protective gloves must always be worn when
working with fixing devices.
Loads may only be fastened which do not exceed
the lifting capacities of the machine and the lifting
gear.
Loads may only be fastened at the load hook
provided for this purpose.
Loads must be attached in such a way that they
cannot slip or fall out.
Do not carry loads over persons.
Loads must be carried as close to the ground as
possible and be prevented from swinging.
Earth-moving machines may only move with an
attached load if the path of travel is fairly level and
if the machine operator’s view of the driving zone is
guaranteed.
2.17 Change of work attachments,
maintenance, repair
Earth-moving machines shall only 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-attach system
is correctly fastened and locked.
Work on e.g.
•
brake
systems,
•
steering
systems,
•
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 work equipment must be secured against
movement by lowering it to the ground or
equivalent measures, e.g. cylinder supports,
trestles. With the engine running, the unprotected
articulation range of articulated loaders shall not be
entered.
When jacking up earth-moving machines, 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.
Summary of Contents for TW85
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