2.4. LHV Load Holding Valves (option)
Cylinders can be optionally equipped with Load Holding Valves (LHV) as a safety device. After a
loader movement they hold the loader in position, also in the unlikely event of a burst hose.
If there is a leak or a component fractures, such as a pipe, hose or a coupling, the LHV will stop the
booms from collapsing down, even when the hydraulic system is switched off and you operate a
particular loader function.
To operate a hydraulic cylinder equipped with a LHV, an opening pressure is required.
DANGER
Overloading could result of damage to the loader or in the worst case, personal
injury or death.
Never increase a hanging load, since that may cause a Load Holding Valve to
open and/or the vehicle to turn over.
NOTE
The extra weight of the lifting accessories has to be added to the load. Thus, with
lifting accessories the load you can lift is less heavy.
Load Holding Valves are not mandatory. The installation is based on the
application and regulatory requirements.
Structure and parts of the loader
HIAB J14S J24S
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