Jack System Repair

Selective Marine specializes in the maintenance, repair, and overhaul of jack-up rig jacking systems. Our experienced technicians provide comprehensive services to ensure the safe and reliable operation of your jacking equipment, minimizing downtime and maximizing operational efficiency for jack-up drilling rigs and self-elevating platforms.

Jacking System Expertise

We service all major jacking system manufacturers and configurations:

Rack and Pinion Systems: Maintenance and repair of rack and pinion jacking mechanisms including gear inspections, rack replacements, and pinion refurbishment
Hydraulic Jacking Systems: Service of hydraulic jacking cylinders, power units, and control systems
Electric Motor Drive Systems: Motor maintenance, brake systems, and electrical control panel servicing
Combination Systems: Electro-hydraulic jacking systems with integrated controls

Supported Manufacturers:

Friede & Goldman jacking systems
Gusto MSC (formerly IHC GUSTO) systems
Keystone Engineering jacking systems
Lamprell Energy jacking equipment
ENSCO and proprietary OEM systems

Comprehensive Jack System Services

Preventive Maintenance

Regular maintenance programs designed to prevent failures and extend equipment life:

Scheduled inspections per manufacturer recommendations
Lubrication and greasing of all moving components
Hydraulic fluid analysis and replacement
Wear measurement and documentation
Alignment checks and adjustments
Seal and gasket inspections
Filter element replacements
Performance testing and load verification

Corrective Repairs

Expert repair services for jacking system failures and damage:

Emergency breakdown response and repairs
Pinion gear repairs and replacements
Hydraulic cylinder rebuilding and seal replacement
Brake system repairs and adjustments
Motor and gearbox overhauls
Control valve servicing and replacement
Accumulator testing and recharging
Pipe and hose replacement

Major Overhauls

Complete jacking system overhaul services including:

Full system disassembly and component inspection
Cleaning and non-destructive testing of critical components
Replacement of wear items and consumables
Machining and repair of damaged components
System reassembly with new fasteners and seals
Pressure testing and function testing
Load testing and certification
Documentation and as-maintained records

Leg Systems & Chord Repairs

Specialized services for jack-up rig legs and chord cans:

Leg Inspection: Visual and NDT inspection of leg sections, chord cans, and rack sections
Rack Repairs: Rack tooth repairs, hard-facing, and rack section replacement
Leg Guides & Bushings: Inspection, machining, and replacement of leg guide systems and wear bushings
Fixation Systems: Repair and maintenance of leg fixation mechanisms and hold-down systems
Leg Extension Repairs: Spud can repairs, leg extension welding, and structural reinforcement

Hydraulic System Services

Comprehensive hydraulic system maintenance and repair:

Hydraulic Power Units: Service and repair of HPUs including pumps, motors, reservoirs, and filtration systems
Cylinder Repair: Rebuilding of jacking cylinders, preload cylinders, and hold-down cylinders
Valve Servicing: Overhaul of directional control valves, pressure relief valves, and counterbalance valves
Accumulator Service: Pre-charge testing, bladder replacement, and accumulator recertification
Hydraulic Hoses & Fittings: Replacement with certified high-pressure hoses and fittings
Contamination Control: Fluid flushing, filtration upgrades, and contamination analysis

Electrical & Control System Services

Electrical maintenance and repair for jacking system controls:

PLC programming and control panel repairs
Sensor calibration and replacement (pressure transducers, proximity sensors, encoders)
Motor control center servicing
Variable frequency drive (VFD) repairs and upgrades
Emergency shutdown system testing and maintenance
Load monitoring system calibration
Operator control station repairs and upgrades

Pinion and Gear Services

Specialized pinion gear maintenance and repair:

Pinion gear inspection using magnetic particle testing
Gear tooth profile measurement and wear analysis
Hard-facing and rebuild of worn pinion gears
Replacement pinion gears - OEM and aftermarket
Bearing replacement and shaft repairs
Gearbox overhauls and seal replacements
Alignment verification and adjustment

Testing & Certification

Comprehensive testing and certification services:

Function Testing: Complete operational testing of all jacking functions
Load Testing: Witnessed load tests per classification society requirements
Pressure Testing: Hydraulic system pressure tests and leak testing
NDT Services: Magnetic particle testing, ultrasonic testing, and dye penetrant inspection of critical components
Alignment Surveys: Laser alignment of motors, gearboxes, and jacking mechanisms
Performance Verification: Speed testing, synchronization checks, and efficiency measurements

Upgrade & Modernization

Upgrade services to improve performance and extend equipment life:

Control system upgrades to modern PLC platforms
Hydraulic system efficiency improvements
Safety system enhancements
Obsolete component replacement and sourcing
Automation and remote monitoring integration
Energy-efficient motor and drive upgrades

Spare Parts & Component Supply

We maintain an extensive inventory of jacking system spare parts:

OEM genuine parts and certified aftermarket alternatives
Hydraulic seals and o-ring kits
Filtration elements and hydraulic fluids
Bearings, bushings, and wear components
Electrical components and control parts
Emergency spares packages
Critical component exchange programs

On-Site Field Services

We provide field service teams for on-rig repairs and maintenance:

24/7 emergency response capability
Fully equipped service teams with specialized tools
Offshore mobilization support
Worldwide service coverage
Coordination with rig schedules to minimize downtime

Documentation & Reporting

Comprehensive documentation for all services provided:

Detailed inspection reports with photographs
Maintenance records and service logs
Test certificates and calibration records
Parts traceability documentation
Classification society survey packages
As-maintained drawings and schematics

Classification Society Compliance

All work performed in accordance with classification requirements:

ABS MODU (Mobile Offshore Drilling Unit) regulations
DNV-GL Offshore Standards
Lloyd's Register requirements
Bureau Veritas specifications
SOLAS and IMO regulations for self-elevating units

Why Choose Selective Marine for Jack System Repair?

Specialized expertise in jack-up rig jacking systems
Experienced technicians with manufacturer training
Comprehensive spare parts inventory for rapid repairs
24/7 emergency response capability
Worldwide service coverage and offshore mobilization
Competitive pricing with transparent quotations
Complete documentation and certification support
Proven track record with major drilling contractors