The signal lamps are installed at eye level on the two A-frames. They light up during crane travel and thus warn persons of the movement of the crane.

The connection cables for the signal lamp and light barriers of the obstacle detection sensor are pulled down through the A-frames from above by means of two draw wires. The connection cables for the light barriers and the signal lamp should be pulled simultaneously through the A-frame.

    Lay connection cables for light barriers (2x) and signal lamp (1x) from the main girder along the outer cross head beam to the A-frame.

    Secure the connection cables to the cable fasteners under the outer cross head beam using cable ties.

    One of the two draw wires leads to the bottom hole on the A-frame (hole directly on the lower end carriage). Fasten the two connection cables for the two light barriers here.

    The other of the two draw wires leads to the centre hole on the A-frame (the hole which is at eye level in the A-frame). Fasten the connection cable for the signal lamp here.

    Pull the connection cable for the signal lamp carefully through the A-frame using the draw wire.

    Insert the cable bushing on the connection cable.

    Fix the cable bushing with cable clips.

    Insert the cable bushing in the hole in the A-frame.

    Disassemble the signal lamp.

    Pull the connection cable through the rear hole on the A-frame.

    Pull the connection cable through the base of the signal lamp.

    Screw the base of the signal lamp to the mount on the A-frame.

    Crimp the wire end ferrules to the connecting cable.

    Screw the coupler plug to the connection cable.

    Connect the coupler plug to the inner part of the signal lamp.

    Insert the cover of the signal lamp into the base and screw it tight.

The arrow on the cover and the marking on the base must align when attaching the signal lamp. The cover must snap into place when it is screwed on.

Note

To disassemble the signal lamp, hold down the push-button on the base and unscrew the cover.