Views: 51 Author: Site Editor Publish Time: 2019-12-04 Origin: Site
Lever hoists are portable devices used to manually lift, lower or pull a load. A lever hoist can also be used for tensioning and lashing loads for transport. Lever hoists have the advantage of being able to lift in most positions, including horizontally and vertically, where chain hoists can typically only be used vertically.
Store and handle lever hoists correctly.
Inspect lever hoists and accessories before use and before placing into storage.
Ensure any support fits freely into the seat of the hook and does not exert a side thrust on the point.
Check the operation of the brake.
Check that the bottom hook will reach its lowest point without running the chain against the stop.
Adopt safe slinging practices and follow the instructions for the safe use of the equipment used.
Expose lever hoists to chemicals, particularly acids, without consulting the supplier.
Replace the load chain with a longer one without consulting the supplier.
Extend the lever or use undue effort to force the lever hoist to operate.
Throw, drop or drag a lever hoist.
Allow oil or grease to come into contact with the brake.
Expose a lever hoist directly to the elements, water spray, steam etc without consulting the supplier.
Type of chain - link or roller.
Capacity and range of lift.
Never return damaged lever hoists to storage. They should be dry, clean and protected from corrosion.
Store lever hoists hung from the suspension hook with the chains raised clear of the ground.
Lever hoists should not be dropped, thrown or dragged across the floor.
Never galvanise or subject the chain, or other load bearing parts, to any other plating process without the express approval of the supplier.
Do not attempt lifting operations unless you understand the use of the equipment and the slinging procedures.
Do not use defective lever hoists or accessories.
Check the slinging arrangement ensuring that the lever hoist is safely rigged and that chains are not twisted. Do not use the load chain as a sling.
Check the load is free to move before commencing and that the landing area has been prepared.
Raise the load just clear, then halt the lift to check the integrity of the lever hoist, slinging method etc.
Do not extend the operating lever, eg with a tube, to force the hoist to operate.
Do not allow loads to swing out of control.
Keep fingers, toes etc clear when lowering loads.
In-service Inspection and Maintenance
Follow any specific maintenance instructions issued by the supplier but in particular keep load chains lubricated and free of debris. Check the operation of the brake. Brakes must be kept free of oil, grease etc. Never replace the load chain with a longer one without consulting the supplier. Regularly inspect the lever hoist and, in the event of the following defects, refer the hoist to a Competent Person for thorough examination: wear; damage to hooks and fittings; damage or distortion to slack end stop; chains worn, bent, notched, stretched, cracked, corroded, do not hang freely, twisted or jump; load slips or will not lift; damaged hoist casing; bent or cracked operating lever; illegible markings.