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Rayco - Wylie Systems

Lattice Crane Lock Outs

Prevents overload & ATB

Fits American Cranes with automatic hoist brake.

Works with most major brand LMI and ATB systems.

Complies with OSHA regulations. (see regulations)

System Description:
Lock out kits are designed to work with an existing rated capacity indicator, load moment indicator or anti-two-block (ATB) warning system.  When the overload or anti-two block alarm is activated the lock out valves will stop the air flow to some of the controls.  This will prevent movements that would put the crane further into overload or two-block.  The operator will be prevented from booming down or hoisting up.  Movements that will get out of the overload or two-block condition will still function, such as boom up and hoist down.  Most displays have an override switch that will allow the operator to disable the lock out system if needed.

The standard air lock out kit for an American crane with automatic hoist brace comes with the valve bank shown above and the connection diagram.

*** Additional hoses and fittings will be required and are not included in the kit.***

*** You will need to have knowledge of your cranes air controls as well as experience working with load moment indicators or anti-two-block warning systems to install this kit yourself.***

We have systems for other Lattice cranes including ones without mechanical hoist brakes but these are only sold with installation by our technician.  

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