Anti-2-Block Installation - Cranesmart Systems LMI System User Manual

Anti-2-Block Installation

(Blue = Main, Yellow = Aux. 1 Winch, Orange = Aux. 2 Winch)
The switch is designed to swivel and pivot so that it is always in an upright vertical position in line with the wire rope,
regardless of the boom angle.
1. Weld the Weld bar to the crane. Ensure the switch is mounted directly above the dead-end or the slowest speed line. The Weld bar can be
welded directly to the crane or to an existing Cranesmart™ weld plate. (Both sides of the weld bar are identical).
2. Ensure that the mounted A2B switch will have an unobstructed line-of-sight to the receiver panel antenna. Install the large shoulder bolt into
the A2B swing arm.
3. Attach the A2B switch to the bar. (Install the nylon bushing between the bar and the swing arm).
4. Attach the two-piece counterweight to the dead-end line or the slowest speed line.
5. Use the C-shackle (bottom of A2B switch) to install the chain to the A2B switch.
6. Counterweight Safety Cable: This Safety Cable is used to secure the counterweight so that it will not fall down the wire rope in the case of
severe damage to the A2B. See drawing for proper installation.
24 Cranesmart LMI Version R9