Still EK-X10, Оригинальное руководство пользователя, Страница: 79 / 124

Operation
4
Emergency operation
Emergency lowering valve
NOTE
For this truck type, a hand-operated valve is
installed in trucks with a possible cab lift height
of 3 m and above. This valve can be used
to lower the lifted cab. To do so, rotate the
knurled-head screw (1) anticlockwise. When
the lowering procedure is complete, rotate the
valve clockwise to close it again. Do not adjust
any others screws apart from the knurled-head
screw on the emergency lowering valve.
Emergency lowering of the driver's cab
Leaving the driver's cab in an emergency
situation
If a technical defect causes the truck to shut
down when the driver's cab is raised, or if an
operator in the raised cab becomes incapable,
e.g. falls unconscious, of operating the truck,
the driver's cab can be lowered by a second
person on the ground using the hand-operated
emergency lowering valve.
WARNING
Risk of injury
The attachment and load must have enough space
from the racking on all sides. Otherwise, safe
lowering of the cab cannot be guaranteed.
If the operator falls unconscious, make sure that all
parts of the body are completely inside the driver's
cab and that there is no risk of injury for the operator
during the lowering procedure.
The operator of the emergency lowering valve must
be certain that the moving components of the lift
mast are immediately set in motion on opening the
valve. Special attention must be given to the cab,
the chains and the inner masts of the lift mast.
All of the load chains in the lift mast must remain taut
throughout the whole of the lowering procedure. If
the components of the lift mast are not immediately
set in motion after opening the emergency lowering
valve, close the valve immediately.
If the view that the operator of the emergency
lowering valve has of the lift mast is obstructed,
a third person with full view of the lift mast must
be involved. This third person must be able to
communicate clearly with both the operator of the
lowering valve and the truck operator.
If a movement like the one described cannot be
detected immediately or if one of the chains has
slackened, a mechanical jam at the lift mast is
suspected. The emergency lowering procedure
must then be stopped immediately by closing the
emergency lowering valve.
The operator must then be retrieved some other
way A second turret truck could be used if suitable
5212 804 3001 EN - 02/2017 73