rooster sheave definition
Rooster Sheave Assembly. The rooster sheave is a pin-on rigging accessory with a composite sheave identical to the boom tip sheaves. It is required if rigging is more than six parts of line, or when an auxiliary winch is used. A second ATB transmitter can easily be bolted to it when used with an auxiliary winch. It is a complete install kit with easily removable pins. Auxiliary Winch Option with Rooster Sheave. This option gives the operator a second winch to operate as a tag line. The second winch is a 12000 lb single speed unity, mounted directly behind the main winch. A down haul bail is included.