How mobile crane service works, start to finish

Stage One: The Phone Call

The call is where the job is actually decided. By the end of it we should know what is being lifted, roughly what it weighs, where it is now, where it has to go, and what stands between those two points.

Expect questions that seem excessive. How wide is the street. Is the driveway concrete or pavers. Is there a power line to the house. How far back is the pad. Every one of those has changed a plan on somebody's job.

You do not need all the answers. Half a picture from someone standing on the property is more useful than a complete picture assembled from assumptions. Where we have gaps, we fill them with satellite imagery, published equipment weights, and a site visit if the job warrants one.

By the end of the call we can usually tell you which machine, roughly how long we will be there, and what we need you to do before the day.

Stage Two: The Site Check

Not every job needs one. A wide street, an open yard, a known load, and the call is enough.

Anything tight, hilly, unusual, or with overhead lines is worth fifteen minutes in person. What happens in that visit is specific: stand where the crane would sit, look up for anything overhead through the whole swing, look down for soft ground and buried lids, and measure the distance from that spot to the landing point.

Then the decision gets made about the setup position, and that decision is most of the plan. Everything else follows from it: which machine, how much boom, what the swing path is, where the exclusion zone will be.

A site visit before the day is cheap. Working out the answer on the morning of the lift with a crew standing around is not.

Stage Three: Arrival and Setup

The truck arrives and the first thing that happens is not lifting. It is a walk of the site to confirm nothing has changed since the plan was made, because things change. A car appeared. A trench got dug. A delivery got left in the way.

Then positioning. The truck gets placed on the spot that was chosen, and the outriggers come down onto mats. Every pad has to be bearing and the machine has to be level, and that gets confirmed rather than assumed.

Setup takes longer than most people expect, and on a simple residential lift it takes longer than the picking does. That is normal and it is not a sign anything is wrong. A crane that is set up properly makes the rest of the day uneventful.

The work area gets defined at the same time. Where nobody stands, and where people can watch from.

Stage Four: The Briefing and the Rigging

Everybody on site gets the same short conversation before anything moves. Who gives signals, where nobody stands, what order things happen in, and the fact that anybody can call a stop for any reason.

Then the load gets rigged. Slings, shackles, and spreaders chosen for the weight, the shape, and where the load can safely be picked from. Soft slings where a finish could be marred. A spreader where converging slings would squeeze the load. Tag lines on before anything leaves the ground.

The rigging choice is made after looking at the actual load, not from a list decided in advance. That is a large part of why the crane comes with an operator rather than by itself.

Stage Five: The Picks

The load comes up a few inches and stops. Everyone looks. Is it hanging level, is it actually free, does the weight feel like what was expected, has anything shifted. That pause is short and it catches most rigging problems while they are still cheap to fix.

Then the load goes up, out, and over at a controlled speed. Not slow for its own sake, but at a pace where the load stays under control the whole way rather than being started and stopped.

Coming down is the careful part. The load approaches the landing point, slows, and is set with tension still in the slings while whoever is receiving it confirms position and orientation. On anything landing on anchors, isolators, or a curb, that final approach takes longer than the whole rest of the pick.

The load stays in the rigging until somebody confirms it is where it belongs and it is seated, bolted, or braced.

Stage Six: Teardown and Walkthrough

The crane comes off the load, the rigging comes off, the outriggers come up, and the mats get picked up.

Then somebody walks the site with you. Not a formality. It is a look at the setup area for anything that got marked, a look at the landing to confirm it is right, and a chance for you to say anything before the truck leaves. Everything is easier to fix while the crane is still there.

On a straightforward residential lift the whole visit is a couple of hours, most of it setup and teardown. On a truss or steel day it is a much longer commitment and the rhythm is completely different.

• Phone call: load, weights, access, obstacles, timing
• Site check on anything tight, hilly, or unfamiliar
• Arrival, site walk, and confirmation nothing has changed
• Setup on outriggers with mats, machine leveled
• Briefing: signals, exclusion zone, sequence, stop rule
• Rigging chosen for the actual load
• Trial lift, then the pick at controlled speed
• Controlled set with tension held until it is confirmed
• Teardown and a walkthrough with you

What You Are Responsible For

The division is straightforward. We bring the crane, the operator, the rigging, and the mats. We plan the lift and we make the call on whether it is safe to make.

You provide access, an accurate description of the load, a clear site, and somebody to receive the load where it lands. On a trade job, your crew sets the pace of everything except the picks.

Almost every delay on a lift traces back to one of those items, which is good news, because they are all things that can be sorted the day before.

When Things Do Not Go to Plan

Sometimes the weight was wrong. Sometimes the ground is softer than it looked. Sometimes the wind comes up. Sometimes what somebody described on the phone is not what is standing in the yard.

The response is always the same shape. The load goes down or stays down, we look at the actual situation, and we decide what is possible now rather than what was possible in the plan.

Occasionally that means the job does not happen today. That is a bad outcome and it is far better than the alternative, and it is why the questions on the phone are worth answering carefully.