Every equipment manager’s budget is impacted by unexpected losses and repairs. If you manage equipment, you know this. You may expect to get 160,000 miles out of that crew truck or 2,000 hours out of a digger derrick before major component replacement, but that’s not going to happen if a line crew drops it off a mountain. I once witnessed the remains of a digger derrick that was lost while being winched up a mountainside for a wilderness construction project. It was unoccupied when the slings attaching it to the D8 crawler dozer failed. At the bottom of the mountain, the winch hook was the only recognizable part. A few years later, I had flashbacks when I heard our construction manager negotiating with our right-of-way clearing manager for the loan of one of their D9s to haul equipment up a mountain. My interest was safety. But in the process of planning for safety, we gained a valuable lesson in equipment preservation. I got involved with pre-planning for mobilization and learned how construction managers planned to perform the project. It was a new line. Right-of-way clearing was being done by another contractor. There were no roads, so access was the challenge. The terrain was very steep at a couple locations.
Prior to the start of the work, I conferred with fleet management. Tow rigging connections are an issue on most equipment. Digger derricks and bucket trucks sometimes come with bumper-mounted factory tow hooks. These bumper hooks are sufficient for getting equipment out of sand if it gets stuck, but they are not necessarily appropriate for a half-mile haul up newly cleared, soft terrain. Fleet asked the truck manufacturer about getting design parameters for the bumper and frame to come up with a modification for towing.