Check List before Installation of Rubber Fender:
- Is the crane configured according to the lift plan?
- Has the crane been inspected and is its condition acceptable?
- Has the rigging equipment been inspected, secured, and is it in acceptable condition?
- Is the supporting surface stable?
- Are proper crane mats placed under outrigger floats and at a 90-degree angle to the outrigger cylinders? Are crawler cranes on proper crane mats?
- Are outriggers (if applicable) fully extended with tyres off the ground?
- Is the crane within 1° of level? Has the levelness of the crane been checked with a 1 meter or longer carpenter’s level or other acceptable method? The‘target’ level in the crane cab can be used for initial leveling but should not be considered reliable for critical lifts.
- Is the exact fender weight known?
- Is the location of the center of gravity of the load known and the crane hook positioned directly above it?
- Was the load radius measured exactly? For heavy lifts, has the potential increasing load radius due to deflections in the boom, tyre, and/or carrier been considered?
- Was the boom length determined exactly?
- Was the boom angle determined exactly?
- Are wind conditions acceptable? Typically if wind speeds exceed 40kph (25mph), the lift should not be attempted. Ideally wind speeds should not exceed 20kph (12mph).
- Is the rope revving balanced to prevent boom twist?
- Is the rigging capacity acceptable?
- Is the weight of the rigging known?
- Has the clearance between the boom and the load been considered and is it sufficient?
- Has the clearance between the boom tip and block been considered and is it sufficient?
- Is the crane operator experienced and qualified?
- Has a qualified crane signal-person been assigned and a method of communication between the crane operator and signal-person established?
- Is someone assigned to control the load with the use of a tag line?
- Is the area clear of obstacles (including power lines, pipelines, and unnecessary personnel)?
- Has there been a pre-lift meeting between the crane operator, signal-person, supervisor, and other relevant people?
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Installations of Rubber Fenders