This always depends on the situation. In an ideal scenario with good organisation and planning, an overhaul of aft and forward seals using the bonding method will take 3 days.
However, perfect planning and organisation are not always easy.
Before a service job begins, we send you a preparation document that can work as a planning checklist. This includes topics to consider and discuss with the shipyard, crew and project manager:
Naturally, unforeseen situations or unexpected issues can arise during the job. This could include discovering extra repairs to complete that went unnoticed until the overhaul.
In these cases, RM Propulsion will work with the superintendent to adjust the schedule and help with planning. We always aim to make the process as easy as possible for everyone involved – and we will never leave you in the dark.
We offer a global service. Anywhere our service engineers can reach you without a visa, or if we can organise a visa with customer help, we can offer our service.
Our engineers are based in:
We usually work in the dry-dock for practical reasons. However, when circumstances require us to work afloat or help with an underwater repair, we will – if it is possible for your vessel and safe for our staff.
In order to perform afloat repairs of the aft seals, the stern tube has to be trimmed at least 0,5 metres out of the water. This means trimming down the forward side and lifting the aft side out of the water.
However, this puts extra strain on the vessel’s structure. It is therefore crucial that afloat repairs can be carried out in calm water, preferably without swell or waves from passing boats.
Forward seals can be replaced with minimal or no trim, but you must be certain the aft seals are not leaking.
The crew of a vessel and its technical department will be able to calculate whether the vessel can trim far enough to perform the repair. In some cases, pumps are required for cooling if the sea chests are trimmed out of the water.
Many tankers and bulk carriers will be able to trim enough for an afloat repair, but this is less common for container vessels.
When problems arise, you may not have time to check the manufacturer’s manual for answers. (Although your crew should always be able to refer to it.)
We know almost all manuals off by heart – so reach out to us with any questions via our contact details above.
Whether or not we have worked on your system, we are happy to help. In many cases, we will be able to guide your crew through the best way to manage the situation.
If not, we can give you transparent recommendations on what your next steps should be, based on our many years of experience.
Absolutely! Our stern tube seal services and parts come with a one-year warranty. Our propulsion services and parts come with a six-month warranty.
In an ideal scenario with proper organisation and planning, an overhaul of aft and forward seals using the bonding method will take 3 days. This is our standaard quote.
Propulsion quotes depend on the number of thrusters to be overhauled and any other maintenance work to be carried out.
Most important: the preparation phase and on-site planning.
There may be circumstances that prevent our service engineer from working through, such as:
Recommendations to make the job go smoother:
So please note our quotation is an estimate on perfect circumstances . The final invoice will be re-calculated based on actual traveling, working, and stand-by days and relevant expenses as described in the quotation and according to the signed timesheet.