Figure 2. 34 Crane Load Moments
The clear triangles show decreasing load moments. The filled triangles show the
increasing load moments.
Emergency Boom Lowering Switch
The crane is equipped with an emergency boom lowering switch for the boom. If the
lift cylinder is extended as far as it will go, the overload protection device switches off
operations that will increase the load moment. The boom can be lowered should this
occur by means of the boom emergency lowering switch.
To enable emergency lowering of the boom pull the boom emergency lowering switch