Two-stage swing-away lattice extension 3.2 Identification

Serial numbers on 12.5 m (41 ft) section

The 12.5 m (41 ft) section consists of a fixed section and a luffing section.

On the luffing section you will find the serial number (1) at the top, on the sheet in front of the deflection sheave.

The serial number (2) is at the bottom of the sheet on the foot of the fixed section.

Serial number on 9m (30 ft) section

On the 9 m (30 ft) section the serial number (1) is on the retaining sheet for the pins.

3.3 Assembly

13 m (43 ft) swing-away lattice extension

0.5 m (1.6 ft) foot section

12.5 m (41 ft) part

22 m (72 ft) two-stage swing-away lattice extension

0.5 m (1.6 ft) foot section

12.5 m (41 ft) part9 m (30 ft) part

HThe 12.5 m (41 ft) section consists of a fixed 2 m (6.6 ft) section and a 10.5m (34 ft) luffing section.

The 0.5 m (1.6 ft) foot section serves as a connection between the main boom head and the lattice extension. It is an integral part of the lattice extension.