You should probably find a way to lock down the boom. Theres too much play in the rotator and attachment to use that to keep your boom stable. Lots of torque on your rotation/slewing gears. That boom needs to be locked into place. It's not meant to slide side to side from chassis movement. Its different than a loader boom. You have inner and outer rotation bolts, bearings, gears, motors, teeth. I would not drive my crane lie that personally. Takes me minutes to connect and disconnect without a hammer. Lube the pin!!