Home / Case study
Case study
Hatch-cover hydraulic pump repair at Vissai Port
Published
SVC Marine carried out hydraulic pump repair at Vissai Port for the cargo-hold and hatch-cover hydraulic system. The work photographs and videos record attendance on the pump system used for hatch-cover operation.
For a new hatch-cover hydraulic fault, our technicians inspect the appointed pump and connected circuit, identify the defective components and prepare the repair and testing worklist. Send the pump particulars, pressure readings, leak photographs and available port-call window.
01
Hydraulic pump work at Vissai
The historical repair involved the hydraulic pump system used for cargo-hold hatch-cover operation at Vissai Port. The original photographs and video record the pump-system work. This is a separate job from the Cam Pha hatch-cover cylinder overhaul and deck-crane hydraulic component transfer.
The service sections below define the inspection, dismantling, parts and tests for a new pump or hatch-system worklist. The quotation identifies what belongs to the pump, connected valves, pipework, motor or cylinders and records the proposed repair for each affected function.
02
Report the hatch-cover fault
Pump failure or low hydraulic pressure can interrupt opening and closing during cargo operations. Report whether the motor starts, the pump delivers oil, pressure builds and the cover moves as expected. State the cargo-operation window and which hatch or function is affected.
SVC undertakes appointed hydraulic work for general cargo vessels, bulk carriers, container vessels, MPP and project cargo vessels, tankers, tugboats and other commercial ships fitted with hydraulic equipment. The equipment and inspected defect determine the worklist.
- Pump not building pressure, or low pressure during hatch-cover operation.
- Slow opening or closing, or pressure lost after a short period of operation.
- Oil leakage from the pump, pipe, flange, hose or fitting.
- Abnormal pump noise or vibration and overheating hydraulic oil.
- Electric motor running while the pump does not deliver pressure.
- Damaged seals, O-rings or gaskets, blocked suction or return filters.
- Faults in the relief, control or solenoid valves.
03
Trace the pump and connected circuit
A hatch-cover pump is one part of the system. Low pressure or interrupted movement can originate in pump wear, internal leakage, seal failure, contaminated oil, trapped air, blocked filters, a leaking pipe, a relief/control valve, a cylinder or the electric motor.
Our technicians examine the appointed hydraulic circuit step by step. They compare the observed pressure response, motor/pump operation, leakage and movement to the vessel’s drawings and reported condition. Identify the affected component before selecting replacement parts or recommending a pump change.
Include the suction and return lines, valve positions, filters, fittings and cylinders in the agreed inspection where they affect the fault. A pump repair and a hatch-cylinder overhaul require separate parts, removal and testing tasks even when they are on one worklist.
04
Inspection and hydraulic pump worklist
The scope depends on pump type, system pressure, defect condition, spare availability and the vessel’s work window. An appointed pump inspection or repair can include:
- Inspect the pump and the affected surrounding circuit.
- Check running condition, abnormal noise, vibration and leakage.
- Check oil level and visible oil condition.
- Examine suction/return lines, filters and pipe fittings.
- Read the pressure gauge and check the pressure response within the agreed test procedure.
- Inspect seals, O-rings, gaskets and damaged fittings.
- Dismantle the identified pump where the repair method requires it.
- Clean, repair or replace the selected defective components.
- Renew the seal kit where suitable specified parts are available.
- Repair the appointed pipe, flange, hose or fitting defects.
- Reassemble, fill with the specified oil, bleed air where required and carry out the agreed functional checks.
- Record photographs, findings, changed parts and remaining next work items.
05
Pump parts and refitting
Send the nameplate, pump maker and model, pressure rating, oil particulars and connection photographs. The quotation identifies dismantling where needed, the components to inspect, the available seal kit or other replacement parts, fittings and the reassembly work.
The worklist distinguishes onboard tasks from any workshop repair required for the selected components. Confirm removal, transfer, refitting and the available working window before proceeding. State which spares are already onboard and which need a separate supply quotation.
After the selected components are repaired or changed, our technicians complete the appointed reassembly, oil-filling and circuit checks. Record any outstanding component against the function it affects so the owner can plan the next parts or attendance requirement.
06
High-pressure pump enquiries
SVC undertakes inspection and appointed repairs for selected marine high-pressure pump systems. Match the repair method, seals, materials and test procedure to the identified equipment and medium. Uncontrolled testing or incorrect parts can endanger people and damage machinery.
Provide the maker, model, pressure rating, medium handled, exact defect, photographs or video and available onboard spares. State the proposed operating and test conditions and any relevant maker’s or technical requirements. A high-pressure pump enquiry is reviewed against its own system rather than assumed to use a hatch-cover pump method.
07
Pipe, fitting and oil-leak repairs
Oil leakage can reduce pressure, interrupt cargo work, contaminate deck areas and create slip or fire hazards. Identify whether the leakage is at the pump seal, flange, hose, fitting or a pipe section, and include the condition at the connection.
Our team carries out the appointed pipe repair, fitting or hose renewal, flange work, seal replacement and leak checks. Specify the pressure rating, connection type, materials and replacement parts. Access and the equipment’s isolated condition must allow the agreed repair and checks to be performed safely.
08
Testing and repair handover
After the appointed repair, agree the checks before returning the affected equipment to operation. The test plan may include pump running condition, pressure build-up, leakage, hatch-cover movement, abnormal noise, oil level and final visual inspection. Identify which function and acceptance points are being checked.
The completion records state the tests actually performed and the results, changed parts and any remaining defect or recommendation. SVC can provide the findings, repair summary, photographs or video and replaced-parts list so the chief engineer and owner can follow each work item.
A proposed functional test in a new enquiry is separate from a recorded result in a completed job. Keep the actual repair record and the outstanding worklist clear when arranging the next attendance.
09
Safe isolation and pressure control
Hydraulic circuits can retain high pressure. Before dismantling a pump, pipe, hose, valve or fitting, the vessel’s responsible officers confirm isolation and depressurization of the affected system, including the electrical supply where required. Prevent operation of the equipment during the repair.
Confirm safe access, lighting and the crew’s attendance arrangements. Control oil leakage and clean oil-contaminated areas before work; agree fire prevention and hot-work precautions where welding is involved. The pressure rating and selected test procedure remain part of the technical worklist.
The work window must accommodate safe preparation, component removal/refitting and the specified checks, with the hatch and cargo operations planned around the affected system.
10
Hydraulic repair at Vissai and Vietnam ports
SVC provides cargo-hold pump repairs, hatch-cover hydraulic fault finding, selected high-pressure pump work and onboard repair attendance at Vietnamese ports, shipyards and anchorages. Locations for an enquiry include Hai Phong, Hon Gai, Cam Pha, Ha Long, Cai Lan, Nghi Son, Vissai Port, Cua Lo, Vung Ang, Son Duong, Hon La, Chan May, Da Nang, Dung Quat, Quy Nhon, Nha Trang, Vinh Tan, Vung Tau, Phu My, Cai Mep and the Ho Chi Minh City area.
For the north-central worklist, see Vissai/Cua Lo repair enquiries, Nghi Son repair and Vung Ang/Son Duong repair. Cargo hold and hatch-cover repair provides related structural and hydraulic scopes. Confirm the actual berth or anchorage, boarding and work window before attendance.
11
Send the hydraulic defect and work window
Send the hydraulic pump enquiry through SVC’s private repair contact with:
- Vessel reference, vessel type, exact berth/anchorage and ETA/ETD.
- The affected hatch, pump or equipment function and its available work window.
- Pump maker and model, nameplate, pressure rating and medium or oil particulars.
- Fault description, pressure readings, alarm or movement history.
- Photographs or video of the pump, valves, leakage and connections.
- Relevant hydraulic and electrical drawings and applicable technical or witnessing requirements.
- Available onboard seal kits, fittings or other spares, and parts needing a supply quotation.
- Isolation/access arrangements and the proposed dismantling, workshop or onboard repair and checks.
12
Hydraulic pump repair questions
Does SVC repair cargo-hold hydraulic pumps in Vietnam?
SVC technicians carry out the appointed pump and connected-circuit inspection, component repair, seal/fitting work and functional checks. Send the pump particulars and fault so the worklist can be defined against the actual equipment.
Can SVC repair hatch-cover hydraulic faults?
Our team inspects the agreed pump, pressure, filters, valves, pipes, fittings and cylinders to identify the affected component. The worklist can include low-pressure, leakage or movement faults, with separate parts and tests for each item.
What can cause low hatch-cover pressure?
Possible causes include pump wear, internal leakage, damaged seals, contaminated oil, blocked filters, trapped air, a leaking pipe or a relief/control valve fault. Examine the pressure response and connected circuit before selecting a repair or replacing the pump.
Can pump repairs be done during a port stay?
Selected work can be carried out during a port or anchorage call when safe access, isolation, parts, tools and sufficient time are available. Confirm any removal, workshop transfer, refitting and test window alongside the hatch and cargo operations.
What should an owner send for a quotation?
Send the vessel reference privately, berth/anchorage and ETA, pump maker and model, pressure rating, fault description, readings, photographs/video, available spares and required work window. Include the relevant drawings and technical, isolation and testing requirements.
Technical guides for this work
Talk to SVC Marine
Please provide your company details and the vessel requirement or work scope. Acceptance is subject to verification and confirmation by SVC Marine.