Staff preparation is what decides how a cleaning trial on a running assembly line ends. It fails in two ways. Either the machine cannot be stopped long enough for the work, or the machine is stopped and the line starts up again with water, loosened residue, or a disconnected part still sitting on it. Staff preparation decides which of those two happens. Before any PowerDe cleaning equipment is connected to the line, the people who run it need to know what is being cleaned, how far the cleaning will go, and what has to be true before the guards go back on.
Start with a written scope of the machine you are cleaning
"The line" is not a cleaning target. Before staff touch anything, one person writes down what is inside the trial: one station, one machine frame, the conveyor guarding, the outside of the drive housing, or a group of machines on one side of the aisle. Anything outside that list stays untouched during the trial, and that exclusion is written down in the same place.
Write the scope the way a shift handover reads it. Name the machine by the tag on the equipment, not by what the maintenance team calls it in the workshop. State which surfaces are in scope and which are not. If the trial includes a machine that also feeds a downstream station, name that downstream station too, because its output is what tells you whether the trial did harm.
Agree the stop window with production before the line is drained down
The stop window is a production decision, not a cleaning decision. Get the plan from the person who owns the schedule: when the line will be free, how long it will stay free, and what has to be handed back at the end of it. Fix that window in writing, and build the cleaning plan to fit inside it rather than hoping the window stretches.
Run one section at a time inside the window. A trial that covers one machine and finishes cleanly is worth more than a trial that covers six machines and gets cut short with an open panel. If the window is short, shrink the scope, not the checks.
Isolate energy before anyone approaches the machine
Mark the machine as not to be started, and put the start control out of use for the length of the trial. Whoever holds the release for that control should not be the person holding the cleaning wand. Air supply, heated zones, and any robot or indexing section on the same machine need the same treatment as the electrical supply; a machine that cannot start electrically can still move on air.
Walk the machine after isolation and look for stored energy and stored heat. Residual heat in a housing, a hot process section, or a surface that runs warm in normal operation all change how a staff member should hold a lance and how close they should stand. Note those surfaces on the scope sheet before the trial begins, not after someone reacts to a hot frame.
Protect what must stay dry before steam or water is used
Every opening on the machine gets attention: drive and gearbox vents, motor cooling paths, bearing housings, encoder and sensor faces, cable entry glands, junction boxes, and any vent that faces upward. Cover what needs covering, and record what was covered so the same list is used when the covers come off.
Trace where the loosened soil and rinse water will go. On an assembly line the water path is rarely straight down. It runs along a frame channel, into a levelling foot, behind a guard panel, or into a cable tray that sits below the conveyor. Decide the drainage route before the first pass, and put a tray or a barrier where the route ends.
Neighbouring stations need their own protection. Loose debris and standing water do not respect the boundary of a trial. Cover the open material, tools, and product at adjacent stations, and keep the floor between stations walkable and visibly dry.
Give staff a small test patch and a way to judge it
Choose a hidden area of the same surface and finish as the visible work, and clean only that patch first. Look at it while wet, and again once dry. Colour change, a dull patch, lifted paint at an edge, and swelling at a label or decal are the things to look for.
Keep the trial method steady so the result is readable. One operator, one technique, one distance from the surface, and a fixed pass count across the test patch make the difference visible. If the patch looks wrong, stop there and photograph it before changing anything.
Where the machine carries a model name, treat the figures on its own page as the reference and confirm them with the supplier before the trial. On the PowerDe HW02 product page the machine is described as a fixed unit that switches between dry and wet steam and takes a tap-water inlet; published numbers on that page should be checked with PowerDe rather than read into a procedure. The same caution applies to any other machine in the cleaning equipment range.
Prepare services and walk the movement routes before the shift starts
A fixed machine needs a water inlet, a route for the hose that does not cross a walkway, and somewhere the run-off can be collected. A mobile unit needs its route to the position and back, including any threshold or drain channel it has to cross. Check both routes on foot before the trial, while the floor is dry and unobstructed.
Agree the supply arrangement for the whole trial: what the machine connects to, who turns it on, and who turns it off at the end. If the trial sits near a process that is still running, confirm that the cleaning crew and the process crew can see each other, and agree how a stop is called.
Tell the cleaning crew what the soil actually is
On assembly lines the soil is usually one of: cutting or forming oil, way-oil and grease from guides, dust and swarf, coolant residue, or a mix left by handling and packing. Tell the crew which one they are looking at and how thick it is, because that determines whether the first pass is a dry removal, a softening step, or a direct clean.
Point out the residue that will not come off with the first method. Built-up oil at a joint line, grease packed into a track, and residue under a flange or behind a bracket normally need a second pass with a different approach. Saying so in advance stops the crew from forcing a single method on a surface that needs a different one.
Plan the hand-back as part of the trial, not after it
The guards, covers, and panels that came off have to go back on, and the people who put them back are responsible for confirming that. Walk the machine once against the scope sheet: every cover fastened, every cover removed for the trial accounted for, every cable gland seated, and no tools or cloths left inside an enclosure.
Let the machine sit until it is dry where water could collect. Frame channels, the underside of a conveyor, the area under a levelling foot, and the space under any panel that was removed are the places to check before the release. If a surface still holds water, the hand-back waits.
Run the machine empty for one cycle before product or material goes back on it, and watch for anything that was not expected. A squeal, an uneven index, or a sensor that trips on the first empty pass is a trial result, not an inconvenience.
Write down what the trial proved
Record the machine, the surfaces cleaned, the stop window that was actually used, the method, the result on the test patch, and what had to be protected. One page, signed by whoever led the trial, gives the next shift something to repeat instead of something to argue about.
Record what did not work as plainly as what did. If a method left residue, if a surface changed appearance, or if the time taken did not fit the window, put that in the record. If the line layout, the soil type, or the service position makes a standard arrangement impractical, that is a question for the supplier: describe the machine and the site through the customized steam cleaning equipment request page rather than adapting the process on the shop floor.
