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Deck crane · Hatch cover · Windlass · Mooring
Crane & Deck Machinery
Deck crane VFD trips, hatch cover sequence faults, windlass overload, mooring winch joystick drift, provision crane limit switches.
Service available at all US ports — 24/7 worldwide. Our next available technician contacts you within 1 hour.
Symptom checklist
What we hear from the bridge.
- ›Deck crane VFD F0007 overvoltage trip during boom lowering
- ›Hatch cover motor single-phasing after rain ingress
- ›Windlass main contactor chatter, brake coil burnt
- ›Provision crane joystick zero-position drift
- ›Slew limit switch chatters, hoist trips on creep
- ›Mooring winch tension readout stuck at zero
Likely root causes
Where the fault usually lives.
- ›VFD braking resistor open circuit, regen with no dump path
- ›Salt bridge across terminal block inside motor JB
- ›NDE bearing current pitting on ABB M3BP
- ›Aged Bussmann fuses with degraded I²t
Equipment we bring
Calibrated test equipment, class-acceptable reports.
- Fluke 438-II motor & drive analyser
- Megger MIT525 5kV IR tester
- SKF MicroVibe vibration / shock pulse
- ABB ACS / Siemens / Yaskawa service tools
- Druck DPI 620 for 4–20 mA loops
Reports compatible with DNV · BV · ABS · Lloyd's · TL · RINA · ClassNK · IRS.
Often needed together
Parts most often requested with this service.
- vfd spares
- limit switches
- load cells
- motor spares
FAQ
Common questions for this system.
- Can we attend crane VFD faults at any US port?
- Yes. We attend at all major US ports — East Coast, Gulf, West Coast — under the standard wizard flow. Engineer typically on the gangway within four to six hours of intake, faster at the largest hubs (Houston, NY/NJ, Long Beach).
- Do we handle hatch cover automation as well as deck cranes?
- Yes — hatch cover sequence faults, single-phasing, motor JB ingress and limit-switch chatter all fall in the same dispatch. Same kit (Fluke 438-II, Megger MIT525, ABB / Siemens / Yaskawa service tools) handles both.
- How long does a typical crane VFD attendance take?
- Diagnostic capture (DC bus voltage during a load-cycle, brake resistor verification) runs two to four hours. Brake resistor replacement is a further sixty to ninety minutes. Full controller replacement with commissioning is half a day.
Have a vessel calling?
Three quick questions — port, when, contact. Our next available technician will contact you within 1 hour.