8
DHOLLANDIA
6.2
SAFETY DEVICES
DHOLLANDIA tail lifts are equipped with multiple safety devices in order to ensure that goods can be loaded and unloaded with
maximum safety for the operator, any incidental bystanders, and the load itself. The following safety devices are incorporated or
recommended on most tail lifts:
Electrical safety valves mounted on all cylinders
[standard]. The safety
valves lock the oil inside the hydraulic cylinders as long as they are not
energized via the electrical controls. The purpose is to secure the platform
in its travel position while driving, or in any other fixed position, in case of
accidental failure of a hydraulic pipe (as soon as the electrical controls are
released).
DHOLLANDIA safety valves are equipped with a manual emergency
control, allowing the operator or repair agent to open the valve manually in
case of electrical failure (see MAINTENANCE AND REPAIR MANUAL).
Mechanical platform lock(s)
[optional]. DHOLLANDIA offers (a)
mechanical platform lock(s) as an option, to further secure the platform in
its travel position in case of accidental loss of hydraulic pressure.
The use of a platform lock is good and safe practice in general. Also,
depending on the vehicle payload and the type of tail lift, extra locks might
be compulsory to comply with the CE load containment regulations
EN12195 and EN 12642 Code XL. Ask DHOLLANDIA for further advice.
Pressure relief valve
[standard]. Safety device integrated into the pump unit, enabling the manufacturer and the installer of the
tail lift to limit the real lift capacity to the maximum rated capacity of the tail lift sold, and to protect it against overload while
LIFTING.
Pressure compensated flow valves
[standard]. Flow valves are integrated in the hydraulic circuits to ensure the platform
lowers at a safe speed, both when empty as when fully loaded.
Marking of the center point of maximum load
[standard]. Tail lifts are
not designed to LIFT and LOWER weights corresponding to their
maximum rated capacity over the entire surface of the platform. The
maximum rated capacity is only valid at a specified distance or “center
point of maximum load” behind the vehicle body. Behind that point marked
on the platform, the maximum safe working load diminishes according to
the load diagrams supplied with the tail lift. See also section 8 on load
charts and correct loading procedures.
2-hand exterior control box
[standard]. On the exterior control box
mounted in fixed position at the side of the vehicle body, all functions are
actuated by means of a control switch and a safety switch. The
compulsory use of 2 hands to actuate the various lift functions, protects
the operator from crushing their head, limbs or upper body between the
LIFTING or CLOSING platform and the rear frame of the vehicle body.