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27 November 2018
JEFFERSON JOBOY 27 November 2018 1 LIFTING AWARENESS 2 GROUND - - PowerPoint PPT Presentation
JEFFERSON JOBOY 27 November 2018 1 LIFTING AWARENESS 2 GROUND RULES 3 What is a lifting operation? An operation concerned with the lifting or lowering of a load'. A 'load' is the item or items being lifted, which includes a person or people
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27 November 2018
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The maximum load which an item of lifting equipment is designed to raise, lower or suspend. The WLL does not account for particular service conditions which may affect the final rating of the equipment.
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Lifting Equipment Lifting equipment comprises lifting appliances and lifting accessories. They are defined as follows: Lifting Appliances Any mechanical device capable of raising or lowering a load, eg: Cranes, Forklift Trucks, Manual Hoists, Lever Hoists, Rope Hoists Winches. Lifting Accessories Any device whatsoever which is used or designed to be used directly or indirectly to connect a load to a lifting appliance (see above) and which does not form part of the load, e.g. Wire Rope Slings, Chain Slings, Man-made Fiber Slings, Hooks and Fittings, Swivels, Shackles, Eye-bolts, Rigging Screws.s, Plate Clamps.
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LIFTING APPLIANCES – 1 YEARS LIFTING ACCESSORIES – 6 MONTHS PEOPLE CARRYING EQUIPMENT – 6 MONTHS
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SHACKLE INFORMATION
MANUFACTURERS LOGO LOGO When pin screwed hard tight no cap here Screw threads must be complete and good fit ¾” WLL S.W.L. Stamp HERE Normally marked as W.L.L. (Weight Load Limit) Diameter of Shackle
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DEE SHACKLE BOW SHACKLE
ROUND PIN SHACKLES
Round Pin Shackles can be used in tie down, towing, suspension or lifting applications where the load is strictly applied in-line.
SCREW PIN SHACKLES
Screw Pin Shackles can be used in any application where a round pin shackle is used including applications involving side-loading circumstances where reduced working load limits are required. While in service, do not allow the screw pin to be rotated by a live line, such as a choker application.
BOLT-TYPE SHACKLES
Bolt-type Shackles can be used in any application where a round pin
addition, they are recommended for permanent
long term installations and where the load may slide
the shackle pin causing the pin to rotate.
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30°
90° max.
(1) Straight pull M=1.0 (2) Choke hitch M=0.8 (3) Basket hitch
(4) Basket hitch parallel M=2.0
MODE FACTORS
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