Gyro Compass Overhaul, Sphere Renewal & Annual Maintenance India
Seanav Marine provides 24/7 certified Gyro Compass annual maintenance, sensitive element overhaul, sphere replacement, and bearing repeater synchronization across all Indian ports. Stocking original gyrospheres, supporting fluids, and gaskets in our Mumbai and Chennai bonded stores, our factory-trained technicians service Sperry Marine (Navigat), Tokyo Keiki, Raytheon Anschütz, and Yokogawa gyros with a 2-hour attendance SLA at major berths.
Supported OEM Equipment & Multi-Make Coverage
Our marine electronics engineers are factory-trained with proprietary OEM diagnostic interfaces, software keys, and genuine spare parts for leading bridge manufacturers:
Technical Specifications & Operational Coverage
| Supported Manufacturers | Sperry Marine (Navigat 100/200/X MK1), Tokyo Keiki (TG-8000/6000), Anschütz (Standard 22/30), Yokogawa (CMZ900/700) |
|---|---|
| Service Capabilities | Annual Overhaul, Sensitive Element Sphere Replacement, Supporting Fluid & Gasket Renewal, Settle Time Calibration |
| Attendance SLA | Within 2 hours at JNPT/Mumbai; within 4 hours at outer anchorages; fly-away teams to all Indian ports |
| Spares Stocked in India | Genuine gyrospheres, pump assemblies, supporting fluids, centering pins, slip rings, step motor repeaters |
| Regulatory Standards | SOLAS Chapter V Regulation 19, IMO Resolution A.424(XI), ISO 8728 Marine Gyrocompass Standard |
6-Step Gyrocompass Annual Overhaul & Calibration Protocol
Our Class-approved technicians execute this standardized procedural workflow to ensure first-time compliance with attending Class surveyors and Indian Port State Control (PSC) inspectors:
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Pre-Overhaul Alarm & Settle Error Diagnosis
Check running hours, log operating voltage and current, inspect temperature alarms, and record settle error against celestial / dockside true azimuth.
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Power Down, Disassembly & Fluid Extraction
Safely isolate master gyro supply, remove outer casing, extract exhausted supporting fluid, and inspect gyrosphere casing for carbonization or physical wear.
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Sensitive Element & Gyrosphere Replacement
Install new factory-calibrated gyrosphere, replace upper and lower centering pins, renew container O-rings and hermetic gaskets.
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Supporting Fluid & Electrolyte Replenishment
Fill sphere container with precise volume of OEM supporting fluid and distilled electrolyte, ensuring total elimination of micro air bubbles.
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Follow-Up System Tuning & Settle-Time Verification
Power up gyro unit; monitor settle-time curve (approx. 3 hours); tune horizontal and vertical damping torque motors to guarantee true north alignment.
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Bridge Repeater & NMEA Heading Synchronization
Synchronize all bridge wing bearing repeaters, steering repeater, radar heading markers, ECDIS, and autopilot inputs to 0.1 degree accuracy.
24/7 Port & Anchorage Attendance Across India
Seanav Marine provides rapid shore-based and offshore launch boat boarding across all 170+ Major and Minor Indian Ports, including:
Download Gyro Compass Maintenance Log & Settle Verification Sheet
Track your vessel's gyro performance and know when sphere renewal is statutory to prevent PSC detentions.