Safety and Accident Prevention
21
Operating Manual Crawler Excavator TC37
2
2.16 Operation in closed spaces
If earth-moving machines are to be used in closed
spaces, these areas must be sufficiently ventilated
and special regulations observed.
2.17 Work stoppages
Before rest periods and at the end of the working day,
the driver of the earth-moving machine must park the
machine on ground which has sufficient carrying
capacity and is as level as possible, and must secure
it against unintended movement.
Before rest periods and at the end of the working day,
the driver must lower the work equipment onto the
ground or secure it so that it cannot move.
The driver is not to leave the earth-moving machine if
the work equipment has not been lowered to the
ground or secured.
Earth-moving machines are only to be parked in
places where they do not present an obstacle to
others, e.g. on the construction site or to plant traffic.
Warning devices, e.g. triangles, warning cordons,
flashing or hazard lights are to be used if necessary.
Before leaving the operator stand, the driver must
bring all operating equipment and controls into home
position, switch off the working hydraulics and apply
the brakes.
If the driver is leaving the earth-moving machine
unattended, he must first turn off the engine and
ensure that it cannot be started up by unauthorized
persons (e.g. removing ignition keys).
2.18 Load hook applications
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 using earth-moving
machines.
Earth-moving machines are only to be used for load
hook applications if the prescribed safety devices are
present and in full working order. For earth-moving
machines, these are:
– Secure attachment of loading implements
– Table of carrying capacity
– Overload warning device
1
– Hose-rupture valve on boom cylinder
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Only if the permissible carrying capacity exceeds 1000 kg.
Loads must be attached in such a way that they
cannot slip or fall out.
Personnel guiding the machine and attaching loads
must always remain in the machine operator’s field of
vision.
The machine operator must carry loads as close to
the ground as possible and prevent them from
swinging.
Earth-moving machines may only move with an
attached load if the path of travel is fairly level.
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.
Do not use fixing devices (ropes, chains, shackles)
which are damaged or of inadequate dimensions.
Protective gloves must always be worn when working
with fixing devices.
