1
Introduction ...................................................................................6
2
2.1
3
3.1
3.2
3.3
3.4
3.5
Extension bars ...................................................................13
4
Head operation ............................................................................14
4.1
5
Dimensions .................................................................................16
6
6.1
6.2
Technical data ....................................................................17
7
Maintenance ................................................................................18
8
Fault fi nding .................................................................................19
Contents
Contents
5