02MARINE HYDRAULIC SYSTEMS

Hydraulic systems

Fault finding, maintenance, revision, renewal, installation and system testing on hydraulic power units, pumps, motors, valve blocks, cylinders and hydraulic lines on yachts and boats.

Power units
Valve blocks
Hydraulic lines
Cylinders

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Illustration: technician working on a hydraulic power pack and valve block connections. — 02MARINE HYDRAULIC SYSTEMS

Not a single component — we assess the whole hydraulic system, from the unit where power is generated to the actuator where motion happens.

We work on the marine hydraulic infrastructure that powers passerelles, moving platforms, hatches, windlass systems and other auxiliary machinery. Hydraulic steering is handled as a separate specialist area.

01Which problems do we solve?

Is the system losing power?
Are cylinder movements slow or erratic?
Is the pump unusually noisy?
Is the hydraulic oil overheating?
Is pressure dropping or the system leaking?

We find the root cause by measuring — and apply a system-based fix instead of replacing parts unnecessarily.

02Scope of service

Hydraulic systems

Fault finding, maintenance, revision, renewal, installation and system testing on hydraulic power units, pumps, motors, valve blocks, cylinders and hydraulic lines on yachts and boats.

Hydraulic power units / power packs
Hydraulic pumps
Hydraulic motors
Electric motor–pump groups
Hydraulic cylinders
Actuators
Directional control valves
Solenoid valves
Pressure control and relief valves
Flow control valves
Check valves
Valve blocks and manifolds
Accumulators
Hydraulic oil tanks
Filtration systems
Pressure and return filters
Oil level and condition checks
Hoses
Rigid hydraulic piping
Fittings and connections
Pressure loss and leak detection
Line renewal
System flushing and oil change
Pressure setting and flow checks
Revision and new system installation
Commissioning and function testing

Power unit range

12 V / 24 V DC electric-motor power units
230 / 400 V AC electric-motor power units

From compact DC units on yachts to larger AC hydraulic systems.

03How does the system work?

A hydraulic system is not just “pump + hose”.

01Oil tank
02Filter
03Hydraulic pump
04Valve / manifold
05Cylinder or hydraulic motor
06Return line
07Filter → tank

Without assessing pressure, flow, oil condition and filtration together, there is no lasting fix.

04Our service approach

“We don’t just check the pressure — we check the whole system.”

We assess the entire system, from power unit to valve block and from hydraulic line to cylinder and motor. By measuring pressure, flow and functions we identify which parts to repair, revise or replace; then we prepare the circuit with oil, filters and bleeding, test it and put it back into service.

05Service process

From survey
to service report.

Our goal is not just to get a system running again, but to hand it over correct and serviceable.

01
System check
Power unit, pump, motor, tank, valves, cylinders, lines and connections are inspected.
02
Fault diagnosis
The source of pressure loss, poor performance, overheating, leaks, noise, vibration or motion problems is identified.
03
Measurement & plan
Pressure, flow and functions are evaluated to decide what to repair, revise or replace.
04
Maintenance / revision
Work is carried out on pumps, motors, valves, cylinders, hoses, pipes and connections.
05
Oil & circuit preparation
Filters are checked, oil and filters changed where needed and the system is bled.
06
Pressure & function test
Working pressure, motion, leaks and functions are checked and the system is commissioned.

06Systems / brand examples

Service experience

Some of the systems we have service experience with

Jastram
DATA Hidrolik
Oğuz
BCS
Danfoss

Common in the industry

Common component manufacturers in the industry

Parker Hannifin
Bosch Rexroth
HYDAC
HAWE
Sun Hydraulics
Bucher Hydraulics
HEMA Endüstri

We work with pumps, motors, valves and filtration components from different manufacturers, following manufacturer data. Brand names are not a claim of authorised service or official partnership.

07Real applications

All projects

Hydraulic piping on Perini Navi projects: power units, valve systems, cylinders and actuators — Yıldız Shipyard, 2012
Hydraulic hatches, valves, Danfoss multicore and hydraulic piping — Sedef / Karpower, 2013–2014
Hydraulic piping on a 10-tug programme — Sanmar, 2014
Hydraulic system installation on a 44 m yacht project — ArkYat, 2022–2023
Example caseHydraulic Power Unit — Motor & System Revision

08Frequently asked questions

Good
questions.

Can’t find your answer? Just tell us the system and the marina.

Ask a question

Why does a hydraulic system overheat?

Low oil level, clogged filters, a wrongly set relief valve, internal leakage in a pump or valve and continuous by-pass operation are the main causes — identified by measurement, not guesswork.

How often should hydraulic oil be changed?

The manufacturer’s maintenance plan, running hours and oil condition decide. Colour, smell, water and particles are evaluated together with the filters.

Do you only replace hoses?

We renew hoses, pipes and fittings — but if the fault lies in another component, we find that first.

Do you work on DC and AC power units?

Yes, on 12/24 V DC and 230/400 V AC electric-motor power units. On the control and electrical side we coordinate with Nice Marin Elektrik when needed.