Guides / Shop Practice

Planning Safety and Site Access Before the Crew Travels

October 6, 2026

Machining in the shop and machining on someone else’s site are different jobs wearing the same job title. The cutting is often the easy part. The planning that has to happen before the crew leaves the building is where on-site work actually gets safe or does not.

A mining plant, a ship or a power station has its own safety rules, its own hazards and its own idea of who is responsible for what. A shop that treats a site job like a shop job with a longer drive gets a rough surprise on arrival.

Permits and the site’s own process

Almost every industrial site requires a permit to work before anyone touches equipment, and the permit process is usually slower than shops expect. It typically covers what task is being done, what hazards it introduces, what isolations are in place and who has signed off on each of those.

Ask early, not the week before travel, what the site’s permit process actually requires. Some sites issue a permit same day for routine work. Others require a planning meeting days in advance, particularly where the work touches equipment that cannot simply be shut down on short notice.

Build that lead time into the schedule the same way a blank lead time gets built in. A crew that is ready to travel but stuck waiting on a permit is a cost nobody quoted for.

Lockout, tagout and whose energy it is

The site owns the equipment and the energy sources around it. The crew owns the portable machine they bring and attach to it. That split sounds clean until something is isolated incorrectly and both sides assumed the other had checked.

Confirm the isolation procedure in writing before the crew arrives, not verbally on the day. Which valves, breakers and stored energy sources are isolated, who verified it and how the crew independently confirms zero energy before starting.

Bring the crew’s own locks and tags, and use them on top of the site’s isolation, not instead of it. A site that will not allow a visiting crew to apply their own lock during work on isolated equipment is a site that has not thought this through, and it is worth raising before work starts rather than after.

Treat a shared isolation as the highest-risk part of the job, because it is the one point where two organisations’ procedures have to line up exactly, and procedures written separately rarely line up on the first try without a conversation.

Working at height and in confined space

Repair work on installed equipment often means reaching a bore or a face that a shop machine would never put you near: a bearing housing eight metres up a mill stand, or the inside of a tank.

Working at height around the equipment being repaired needs its own plan, separate from the machining plan. Fall protection, a rated platform or scaffold and a clear line of sight for anyone operating a portable boring bar or facing head from an awkward position.

Confined space entry brings its own permit, its own atmosphere testing and its own rules on who can be inside alone. A part being repaired inside a vessel or a tank is not just a machining challenge, it is a confined space job that happens to involve machining, and it should be planned as one from the start.

Neither of these is optional because the crew is experienced. They are the two categories of site work where a routine job becomes a serious incident fastest, and they deserve a written plan every time, not judgment on the day.

Power, lighting and what the site can actually provide

Site power is usually fine for lighting a work area and running hand tools. It is not always fine for a portable boring machine, a line boring bar or precision measurement equipment that needs stable voltage and a level, vibration-free setup.

Confirm before travel, not on arrival:

What voltage and phase is actually available at the work location, not just at the nearest panel.
Whether the crew needs to bring their own generator or voltage stabiliser for sensitive equipment.
What lighting exists at the actual work point, which is often far dimmer than the walkway lighting suggests.
Whether extension runs will cross a walkway or a vehicle route, which changes what cable rating and protection is needed.

A crew that discovers on day one that the only power point is fifty metres away has lost a day it did not quote for, and the fix, more cable and better planning, was available for free before they left the shop.

What to do next

Build a one page site readiness checklist covering permit process, lockout coordination, height and confined space needs and power confirmation, and require it filled in before any crew is dispatched. The jobs that go wrong on site are rarely the machining, they are the item on this list nobody checked.

Frequently asked questions

Who is responsible for lockout and tagout on site, the shop or the customer?

Both, and that is the risk. The customer's site owns the energy isolation, the shop's crew owns the machine they attach. Agree in writing before the crew arrives on who verifies what, do not assume it is covered.

How much advance notice does site access usually need?

More than most shops budget for. A permit to work, an induction slot and a lockout coordination meeting can each take days to arrange, so confirm the site's own process as soon as the job is likely, not once the crew is packing.

What should the crew bring that the site probably will not have?

Task lighting, extension cable rated for the load and their own lockout locks and tags. Site power and lighting are often adequate for walking around and inadequate for running a portable machine tool accurately.

Need a quote for a part like this?

Send the drawing with the envelope and finished weight. We match you with up to 3 shops that take parts this size and reply within 24 business hours.

Get matched with a large part shop