Technical Safety - Zepro ZHD 1500 User Manual

Technical safety

WARNING
The biggest risk for snips and catch injuries is in the danger zone between the
platform and body floor when the platform rises to body floor level and when
the platform closes against the body. A person who rides with the goods at the
platform must keep back feet and other parts of the body from this danger zone.
Your ZEPRO tail lift is equipped with safety
devices to prevent accidents.
Electric safety
Electric safety valves are one-way valves
which allow oil to flow into the cylinders
but not out from them, provided that all the
control buttons are released and no current
activates the magnets on the valves. In
the event of a leakage, the platform is
supported by the oil which is trapped
securely in the cylinder by the safety valve.
ZEPRO supplies one such valve on the
tilt cylinder circuit and one on lift cylinder
circuit so that both circuits are protected.
NOTE! Some safety valves require that the
current activates the magnet at both the
inflow and outflow from the cylinder.
Safety instructions
Mechanical safety valves
Unlike electrical safety valves as protect at
leakage, these protect the tail lift against
plummeting at hose breakage.
Control unit
3-button control + turn switch is used at all
opening/down tilting/lowering and closing/
up tilting/lifting movements to avoid catch
injuries. This means that the turn switch
must be activated together with normal
buttons in order to the above movement is
to be carried out.
Warning flags & warning light
To mark "platform out" there is warning
flags and warning lights at platforms,
mounted as alerts the surroundings during
the tail lifts movement. The flags have
reflectors to enable good visibility at all
times, thus ensuring safe work in the
evenings and nights.
Main fuse
In order to prevent electrical overload of
circuits and the consequent risk of fire
a 150A (24V) or 250A (12V) has been
integrated into the electrical circuit.
18
WARNING
The electrical safety valve locks
the hydraulic oil inside the
cylinder as long as its magnet
is not activated by a control
button.