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TTS Marine

TTS Side Ramp 300t

Name: TTS Marine TTS Side Ramp 300t
Brand: TTS Marine
SKU: OSE-128995

TTS Marine TTS Side Ramp 300t — RoRo Equipment.

Inspector Detail

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Common issues

Hinge pin and bushing wear leading to ramp play or misalignment
Hydraulic cylinder seal leakage causing ramp drift or slow operation
Corrosion at hinge points and structural stiffeners from seawater exposure
Locking pin/hook mechanism wear affecting secure stowage
Hydraulic power unit contamination or pump wear reducing operating speed
Deck plating wear or deformation from vehicle/cargo traffic

Inspection checklist

Inspect hinge pins, bushings, and brackets for wear, cracking, and corrosion
Check hydraulic cylinders for external leakage and rod scoring
Function-test the full raise/lower cycle and confirm operating time against baseline
Verify the locking/securing mechanism engages fully and cannot be defeated under load
Inspect structural welds and stiffeners for cracking, particularly at hinge and lifting points
Check hydraulic oil condition and filter differential pressure
Confirm limit switches and interlocks, if fitted, operate correctly

Service intervals

Hinge and pin lubrication	typically weekly to monthly in service, per manufacturer schedule
Hydraulic cylinder and hose inspection	monthly
Full structural/NDT inspection of ramp and hinges	per class survey cycle, typically annual to 5-yearly for detailed NDT
Hydraulic oil change/filter replacement	per manufacturer schedule or condition-based on oil analysis

Typical wear limits

Hinge pin/bushing radial clearance	manufacturer typically sets a maximum before replacement is required - confirm the figure against the ramp's own drawings/manual, as it varies with pin diameter
Structural plate thickness (corrosion)	renewal typically required once thickness has reduced to roughly 75-80% of as-built, though the exact rule/diminution figure varies by class society and location - confirm against the vessel's class thickness diminution criteria

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

Hydraulic cylinder seal kits
Hinge pins and bushings
Locking pin/hook assembly components
Hydraulic hoses rated for the system pressure
Limit switches, if fitted

Safety

A 300t-rated ramp represents a major crushing/fall hazard; never work beneath or alongside a raised ramp without mechanical props or the locking system engaged
The hydraulic system holds the ramp under load - a hose or seal failure can cause sudden uncontrolled movement
Confirm securing/locking devices are engaged before the vessel sails, not just that the hydraulic system is holding pressure
Corroded or cracked hinge structure can fail suddenly under load - treat any cracking finding as urgent

Class survey

RoRo ramps rated to carry vehicle/cargo loads are class survey items - expect NDT of hinge structure and load testing per the class society's RoRo/ramp survey requirements, with load test certificates retained onboard.

Estimated lifetime: Life is governed by structural fatigue and corrosion condition rather than running hours; relies on periodic NDT and thickness measurement rather than a fixed hours figure.