A table that creeps down does not fail loudly. It starts as a small movement in a long case, and the team notices when the field is no longer where it was set. That is why this complaint cannot be answered with a maintenance schedule or a note that the hospital should check the hydraulics during commissioning. A table that moves under a patient changes the operation, and every table in the container is a candidate until one of them is tested in front of a camera and the result matches the table you were shown.<\/p>\n
Keep that framing in the message you send. A factory that reads this as a warranty question will answer with a warranty clause. A factory that reads it as a stop will answer with a table and a test.<\/p>\n You do not need a laboratory to see whether a table holds. Take one table from this container. Set it to a working height. Tape a small mark on the column, on the outer sleeve, in line with the top of the base. Take the photograph with the mark and the column in the same frame, close enough that the position of the mark can be compared later. Then load the table the way it will be loaded in use, centred and, if you have the chance, off centre as well, because the hospital will not always keep the load in the middle.<\/p>\n Then switch the power off. This is the part that gets skipped, and it is the part that makes the test mean something. With the power on, the pump can quietly correct the height and the test passes while the fault is still there. With the power off, whatever holds the column is holding on its own, and the tape mark shows whether it holds.<\/p>\n Photograph the mark again at the end of the test, from the same angle, with the same tape still on the table. Two photos, one table, one mark, is a record. A number typed into a message about how much the table moved in how many hours is a claim, and it is a claim about a table you did not see. Ask for the pair of photos and compare them yourself. If the mark has moved, the column lost height and there is nothing left to argue about.<\/p>\n A table can hold its height perfectly and still move across the floor when the patient is shifted or the table is bumped. That is the base brake, and it is a different mechanism from whatever holds the column. It also travels badly. A brake that was adjusted at the workshop can arrive out of adjustment, and the person who discovers it is usually the one holding the patient while somebody else reaches for the pedal or the lever.<\/p>\n So ask for the brake test in the same session, on a floor you know. With the brake engaged, push the table the way a person leans on it and photograph the result, along with a close photograph of the brake engaged and the pads or shoes meeting the floor. If the brake only holds on one kind of floor, say which floor the test was done on, because a hospital theatre floor and a factory loading bay are not the same surface. A brake test on the wrong floor passes and tells you nothing.<\/p>\n Fluid has to be held in one place for a table to hold its height, and the way that is done is a valve that lets fluid pass in one direction only, which is what the description of a check valve<\/a> covers. Any weep past that holding point shows up first as a slow loss of height and then as oil where it should not be. That makes the floor under the table part of the test, not a later housekeeping problem.<\/p>\n After the hold test, photograph the floor under the column and the base of the table itself. A dark film, a ring of oil around a fitting, or a wet line running down the column is the same finding as a moved tape mark, seen earlier. Photograph the sight glass or the oil level check on the same table while you are there, together with the fitting it belongs to. It is a cheap picture to take and it is the one that tells a technician where to start when the table reaches the hospital.<\/p>\n Ask, in the same message, what the manual says about oil level checks before the first use. If the answer involves a step the hospital is supposed to perform on arrival, that step belongs in the commissioning plan and not in a note that explains away the creep.<\/p>\n How a table travels can stress the very seals that hold it. A column shipped extended, a table strapped with its sections raised, or a valve left in a position that keeps pressure on the circuit for weeks will arrive differently from one shipped settled and released. You may not control any of that, but you can see it, and the picture is taken in the last minutes before the crate closes.<\/p>\n Ask for a photograph of the table in the crate, at the shipping height, with the oil sight glass and the control unit visible, plus a short written note of the height it was shipped at and the state of the valves. Then compare that with the manual\u2019s instructions for the first power up. If the manual tells the technician to check the oil before the first case, and the crate photo shows the level below the mark, the question of whether the tables were sent out sound has already been answered. That is a photograph taken at the factory, not an inspection after arrival, and it costs nothing to add to the packing routine.<\/p>\n Do not put them into service and hope. Tag each table and run the same tape test on each one, on the same floor, with the same load, so the units can be compared with each other rather than with a memory. A group of tables tested on one floor produces a spread, and the spread is what tells you whether you are dealing with one table, a shift of tables, or a whole batch. Keep the tape photos per unit and keep the floor photographs with them.<\/p>\n Then decide per unit, not per container. A table that holds its height and its brake passes the two tests and can go into service with the usual commissioning steps described in the checklist that runs from crate to first surgery<\/a>. A table that moves goes into one group, out of service, and stays there until the factory answers with a corrected table that has been through the same tape test. Do not let a drifting table be absorbed into a maintenance budget, because the first person who notices it again will be a surgeon with a patient on it.<\/p>\n If the tables are being bought against a rated load, the rating itself is worth reading again while you have the units in front of you, particularly if some of the load will sit off centre. The notes on weight ratings and how they are read<\/a> explain how a figure on a datasheet relates to the way a table is actually loaded, and the way a table is loaded is exactly what the hold test reproduces.<\/p>\n Send one message to the person who can stop the line. Name the order and the model. Say the demonstration table held its height and the tables in this container creep under a patient, and state the hold in one sentence: no more tables made or packed until you have the three records from this lot. Name them. First, the tape mark photographed at the start and the end of a loaded hold test on one table, power off. Second, the floor brake push test on the same table, with the engaged brake and the floor under the column photographed. Third, the pre-crating photograph showing the shipping height and the oil level.<\/p>\n A release is your note that the tape mark has not moved, that the brake holds on the floor you tested, and that the crate photo matches the manual. A hydraulic diagram, a commissioning checklist, and a promise to check the oil on arrival do not release the hold.<\/p>\n Keep the tape photos, the floor photos and the crate photo in the order folder with the model and the serial numbers. The next container will come from the same line, and the pairs of photographs from this lot are what make the next answer quick.<\/p>","protected":false},"excerpt":{"rendered":"![\"Finished](\"https:\/\/sanyangmedical.com\/wp-content\/uploads\/2026\/07\/sanyang-medical-operating-table-factory-photo-foxtrot-1920w-1024x1024.webp\")
\n<\/figure>\nRun the hold test in a way you can check yourself<\/h2>\n
The floor brake is a second system and it fails separately<\/h2>\n
Look for the oil while the table is still there<\/h2>\n
Show the table as it was crated<\/h2>\n
What to do with the tables you already have<\/h2>\n
Write the hold the same day<\/h2>\n