Boom extension
4.2 Description of the rigging work
4 - 18 3 112 441 en Lattice extension operating instructions
GMK 4100/4100-L/5095
11.01.2008
4.2.5 Fold in / out the deflection sheave on section 3
To fold the deflection sheaves on section 1 in and out; à p. 3 - 64.
Folding out the deflection sheave
• (A) – Undo the retaining pin for the pin (3).
• Hold the deflection sheave tight by the han-
dle (1) and pull out the pin (3).
• (B) – Fold the deflection sheave (2) upwards
and fasten it in this position with the pin (3).
• Secure the pin (3) with the retaining pin.
Folding in the deflection sheave
• (A) – Undo the retaining pin for the pin (3).
• Hold the deflection sheave tight by the han-
dle (1) and pull out the pin (3).
• (B) – Fold the deflection sheave (2) down-
wards and fasten it in this position with the
pin (3).
• Secure the pin (3) with the retaining pin.