1.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1Important information

1.1 About these operating instructions

Abbreviations used

Validity of theseoperating instructions

Prerequisites forassembly and operation

Safety instructions

References toother operating instructions

These operating instructions describe a load increasing system, which is available as additional equipment. The system is called Mega Wing Lift and is abbreviated in these operating instructions to MWL (Mega Wing Lift).

These operating instructions only apply to original parts supplied by Deutsche GROVE GmbH and describe the operation of the MWL. In addition, operation of the truck crane is also subject to all the specifications in the Operating instructions accompanying the GMK7450 for which the MWL was manufactured. For the operation of the truck crane with the lattice extensions described inthese operating instructions, but without the MWL, the GMK7450 Lattice extension operating instructions apply.

The MWL described in these operating instructions may only be operated together with a GROVE GMK7450 truck crane whose serial number is identical with the serial number that is marked on the MWL.

The operation of GMK7450 with the MWL described in these operating instructions is subject to: –the basic safety instructions to be found in the subsequent section Basic safety instructions and –the safety instructions contained in the operating instructions supplied for the GMK7450.

Cross references to other operating or maintenance instructions are shown in the following forms: à GMK7450 operating instructions, Part 1 Superstructure – Rigging work The number for the chapter on Rigging work is found at the front, on the second page of the operating instructions specified.

or

àGMK7450 operating instructions – Safe load indicator The corresponding page number can be found in the index, under the entry for Safe load indicator.

1.2 Supplementary instructions to the operating instructions for the GMK7450

1.2.1 Addition to the driving mode table

For truck cranes that are supplied with MWL, you must not only observe the specifications in the accompanying GMK7450 operating instructions, but also the following points in addition, so that the axle load of 12 t (26400lbs) is not exceeded during on-road driving.

Rigging mode Driving mode 1 2 3 4 5 6 7

The MWL has been completely removed ● ● ● ● ● ● ● Both side head sheaves have been removed ● ● ● ● ● ● ● The removable rests for the rear pendant links have been removed from the basic section of the main boom

The rope grab is fastened on the main boom, either in the front holder or in the rear holder

1.2.2 Addition to the Telescoping emergency program submenu

When the MWL is rigged and the Telescoping emergency program is switched on, the winches of the MWL do not follow automatically when telescoping. For this reason, before using the Telescoping emergency program, please note the information given in the Malfunctions during operation with the MWL chapter; à Telescoping in the emergency program with a rigged MWL, p.10-22.