Academia.eduAcademia.edu

LIFTING PROCEDURE

2018, heavy lift

https://doi.org/107

bagaimana menjadikan sebum pengangkatan heavy lift dental man

SCOPE OF WORKS GENERAL This document covered method statement for lifting materials for all area (Underground) for project to ensure that works will be performed safely, fulfil specification and quality requirements. REFERENCE DOCUMENTS General Method for Underground Area Contractor’s Safety Plan Site Emergency Response Procedure ORGANIZATION CHART Organization Structure for Underground Area refers to Appendix – 1. Organization Chart LIFTING INFORMATION Signal during lifting There are two method of signal during lifting: Hand signal Successful communication between the signalman and the operator relies on both individuals fully understanding all hand signals used. The signal person and their ability to properly use hand signals is imperative on job sites. Oftentimes, the signal man becomes the eyes of the operator. It’s common for the operator not to be able to see the load they’re moving and if they can see it, then it’s typically blocking the sight line of where the load needs to travel. The detail of hand sign can be seen in appendix – 2. Hand Sign for Operator Crane Handy talky signal (electronic communication) Handy talky will be used during lifting with different height. During the direction, will use Indonesian language between operator and signalman and information shall be clearly. Prohibited to make signal which the voice almost same, because will make confuse. Sling Calculation for Materials Detail of sling calculation for all materials can be seen in appendix – 3. Sling calculation for materials Webbing Sling Management Webbing sling check : Webbing sling shall be checked regularly, so we can know the damage and we shall not negligent for the replacement of damaged webbing sling. name or trademark of the manufacturer manufacturer’s code or stock number rated load for at least one hitch type and the angle upon which it is based type of synthetic material number of legs, if more than one Webbing sling which can’t be used are (removal criteria) : Acid or caustic burns Melting or charring of any part of the sling Holes, tears, cuts or snags Broken or worn stitching in the load bearing splices. Excessive abrasive wear. Knots in any part of the sling. Discoloration and brittle or stiff areas on any part of the sling, which may mean chemical or ultraviolet/ sunlight damage. Fittings that are pitted, corroded, cracked, bent, twisted, gouged or broken. For hooks, removal criteria as stated in ASME B30.10 For other applicable hardware, removal criteria as stated in ASME B30.26 Other conditions, including visible damage, that cause doubt as to the continued use of the sling. Please refer to appendix – 4. Damage Criteria Periodical inspection for webbing sling is per 3 months. Life time for webbing sling is 3 years start from the first used, when the materials found above damages shall be removed even less than 3 years. Wire Sling Management Wire check : Wire shall be checked regularly, so we can know the damage and we shall not negligent for the replacement of damaged wire. Measuring several places of visible and the diameters of frequently used parts. Check there are any broken wires or not. Check how many rust in the wire or not and level of rust. Check any grease or not. Check there is change in the body or not. Check any abnormal parts in the connection or not. Wire which can’t be used are (removal criteria) : Missing or illegible sling identification Broken weld or a broken brazed joint along the sling edge Broken wire in any part of the mesh. Reduction in wire diameter of 25% due to abrasion or 15% due to corrosion. Lack of flexibility due to distortion of the mesh Distortion of the choker fitting so the depth of the slot is increased by more than 10%. Distortion of either end fitting so the width of the eye opening is decreased by more than 10%. 15% reduction of the original cross sectional area of any point around the hook opening of the end fitting. Visible distortion of either end fitting out of its plane. Cracked end fitting. Slings in which the spirals are locked or without free articulation shall not be used. Fittings that are pitted, corroded, cracked, bent, twisted, gouged, or broken. Other conditions, including visible damage, that cause doubt as to the continued use of the sling. Please refer to appendix – 4. Damage Criteria Periodical inspection for wire sling is per 3 months. Life time for wire sling is 3 years start from the first used, when the materials found above damages shall be removed even less than 3 years.