Overhaul of a steering gear HPU
Full recovery of the hydraulic power unit driving the rudder, with pump replacement and contamination brought back within specification.
Read the case studyPumps · Offshore
Recovery of a cargo pump losing efficiency
Internal clearances recovered and wear rings manufactured, with the duty curve restored and proven on the test bench.
Execution
The sequence applied and the engineering decisions taken
The order below reproduces how the work was actually carried out, including the points where the condition found required a change of scope.
- Strip-down with the condition found on record and every internal clearance measured.
- Wear ring clearance found to be far above the design value — the direct cause of internal recirculation and the loss of efficiency.
- New wear rings manufactured in our own machine shop, in a material suited to the fluid being pumped.
- Recovery of the impeller and the shaft seat, restoring the design dimensions.
- Replacement of the mechanical seal, bearings and seals.
- Reassembly with the rotating assembly balanced.
- Bench performance test with pressure, flow and vibration recorded.
Comparison
Condition before and after the intervention
Drag the slider to switch between the two recorded conditions.
- Before
- Flow below rated, high power draw and the need to run two pumps in parallel.
- After
- Duty curve restored and demand met with a single unit.
Result
What the intervention delivered
The pump returned to its specified duty curve, demonstrated on the test bench. The operation now meets demand with a single unit, releasing the second pump as a genuine standby and lowering the system's energy consumption.
7
days in the workshop
1
unit released to standby
100%
of the duty curve restored
Photographic record
Job gallery
The photographic record forms part of the technical report handed to the client and feeds the equipment history.
Portfolio
Other completed projects
Transmission shaft manufactured by reverse engineering
Manufacture of a transmission shaft for discontinued equipment, worked up from the fractured component with no manufacturer drawing available.
Read the case studyFull overhaul of a mooring winch
Complete overhaul of a mooring winch with drum recovery, hydraulic drive overhaul and load testing.
Read the case studyTechnical support
Need to bring a piece of equipment back into service?
Tell us the condition of the equipment and the window you have available. Our engineering team will come back with an assessment and a preliminary scope of work.