User's Manual

34 Revision 2 GM550 v1043 FCC-IC.doc
If the head sheave diameter is between 8 and 16 inches (20-41 centimetres) then two mounting
brackets will be required to permit both live and dead end mounting.
Mount bracket below and
behind sheave centre.
Up to 8 in. (20 cm) diameter
Boom base →
Figure: Telescopic boom, anti-two-block switch placement
for both live and dead end mounting
Mount bracket 4 in. (10 cm)
below sheave centre.
8-16 in. (20-41 cm) diameter
Boom base →
Figure: Lattice boom, anti-two-block switch
placement for live end mounting
Mount bracket 4 in. (10 cm)
in front of the dead end pin.
8-16 in. (20-41 cm) diameter
Boom base →
Figure: Lattice boom, anti-two-block switch
placement for dead end mounting
Dead end pin