Folding Hatch Cover · Hatch Covers & Cargo Access
Worn or incorrect bearing pads compromise ship safety. Decades of experience and continuous development means that MacGregor is able to offer a range of bearing pad options designed to ensure safety and meet every size of vessel and operational need.
| Bearing pad inspection | typically annually, with renewal per the maker's wear limit |
|---|---|
| Rubber packing replacement | typically every 2-5 years depending on condition - confirm against the maker's manual |
| Hydraulic power pack service (oil, filters) | per the hydraulic unit maker's own interval |
| Weathertightness test | at each class survey and after any repair affecting sealing |
| Cross joint/bearing greasing | per the maker's lubrication schedule, typically every 1-3 months in service |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Bearing pad wear | renew when wear exceeds roughly half of original pad thickness, or per the maker's stated renewal limit - confirm against the maker's manual |
|---|---|
| Cross joint/wheel clearance | keep within the maker's stated tolerance, typically a few millimetres - confirm against the maker's manual |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Hatch covers require a weathertightness test (hose test or equivalent) at each annual and special survey; class checks bearing pad and packing condition, cleating device function, and coaming/drain channel corrosion.
Estimated lifetime: Not applicable in running hours - a steel structure and hydraulic system typically good for the vessel's design life with periodic bearing pad and packing renewal; hydraulic cylinder seals typically need renewal every 5-10 years
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