Rubber Fenders Maintenance and Inspection Periods
A rubber fenders maintenance and inspection program is needed to identify maintenance, wear and damage as well as the likely causes at an early stage. Three levels of inspection and maintenance are recommended. The table gives average periods for temperate climates. These should be more often in harsh environments such as the tropics. If you are uncertain about any aspect of inspection or maintenance, please consult with us.
Notes
- A close inspection should also be made after any incident which may have damaged the fenders or supporting structure. Always record the event, cause and consequences immediately.
- Interim maintenance will include, but is not limited to, the repair of any cuts and surface damage to the rubber. Paint spills should be removed by water jetting.
- Close attention should be paid to edges where ropes may abrade, also around chain brackets.
- Interim maintenance will include replacement of worn UHMW-PE pads, in particular all pads with remaining wear allowance insufficient to last until the next scheduled maintenance.
- Any missing lock nuts, locking tabs or split pins should be replaced at the same time. The correct preload should be applied to fixings.
- Components must be changed if diameter is likely to reduce below permitted minimum before the next scheduled maintenance.
- The initial inflation pressure of pneumatic fenders should be monitored and adjusted every month.
- Full maintenance should be carried out when paint coatings, corrosion or damage demand removal of the fender systems for a more thorough overhaul.
- Most design specifications do not include corrosion allowances. Therefore the deterioration of pain or galvanizing coatings will inevitably increase steel stresses.
- Interim maintenance should include the replacement of the inflation valve and cap. This can usually be done in-situ with the appropriate tool and without first deflating the fender.
- Major maintenance of pneumatic fenders includes dismantling of the end fittings, valves and replacing these components. Chain and tyre nets should also be overhauled or replaced.
- Marine growth can hide or even cause maintenance issues. In areas prone to heavy marine growth and strong currents or tides, marine growth can increase drag forces or substantially increase the air weight of the fender system.
Click below to learn more about JIER Rubber Fenders:
Arch Fender
JIER manufactures two types Arch Fenders, JDA-A and JDA-B. The JDA-A fender has a rubber contact face ideal for all general purpose applications...
Cylindrical Fender
Cylindrical Fenders are simple to install and operate which makes these units an economical solution for remote locations and for multi user berths...
Cone Fender
All Cone Fenders are single piece mouldings so they are robust, long lasting and easy to install. UHMW-PE faced steel frontal frames are generally used...
Super Cell Fender
Cell Rubber Fender here mentioned is improved over the ordinary type. It has high absorption energy per unit weight and low tilt compression performance...
D Fender
D Fenders can be pre-curved, chamfered and drilled to aid installation at a relatively low cost and can also be cut to the length required ...
Wing Fender
JIER Wing Type Rubber Fenders are developed on the basis of D Type Rubber Fenders. They can be fixed with double line anchors which greatly ...
Square Fender
Square Rubber Fenders offer similar advantages to D fenders and are typically used where a stiffer fender is required. Square Rubber Fenders...
Unit Element Fender
Unit Element Fenders are a high performance, modular system. Element Fenders can be combined in unlimited permutations of length, orientation and Energy...
Roller Wheel Fender
Roller and Wheel Fenders are commonly used on the berth corners and dock entrances, also widely installed along the walls of dry docks and other...
Tug Fender
Tug fenders must work harder, for longer and under more adverse conditions than any other fender type. Tug fenders can be divided into three main types...
Pneumatic Rubber Fender
Pneumatic Rubber Fenders have been in use for around 50 years. The development of the Pneumatic Fender has progressed through ...
Foam Filled Fender
Foam Filled Fenders are versatile, robust and suitable for almost all applications. The manufacturing process allows for virtually any size of fender to be...
Keyhole Fender
Keyhole Fenders are made of high abrasion resistance rubber. They are specially designed for tugboats and workboats.
Rubber Ladders
Rubber Ladders Fenders are very robust. They are flexible to reduce accidental damage and help protect the wharf from small craft berthing.
Rubber Pads
Rubber Pads (Plates) are designed and produced for the protection of barges, tugboats, water locks and quay walls.[top]
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