Guide to the Care and Safe Use of Manual Lever Blocks

Always store and handle lever blocks correctly
Always inspect lever blocks and accessories before use and before placing in storage
Always ensure that any support fits freely into the seat of the hook and does not exert a side thrust on the point.
Always check the operation of the brake.
Always check that the bottom hook will reach its lowest point without running the load chain against the stop.
Always adopt safe slinging practices and the follow instructions for the safe use of the equipment used.

Never expose lever blocks to chemicals especially acids without consulting the supplier.
Never replace the load chain without consulting the supplier.
Never extend the lever or use undue effort to force a lever block to operate.
Never throw, drop or drag a lever block.
Never allow oil or grease in contact with the brake.
Never expose a lever block directly to the elements, water spray, steam etc. without consulting the supplier.

Selecting the Correct Lever Block

Lever blocks are available in a range of capacities with either link chain or roller chain. Select the lever block to be used taking the following into account:

  • Type of chain – link or roller.
  • Capacity, and range of lift.
  • Consult the supplier if the lever block is to be used in areas of high risk, exposed to the elements, water steam etc. with hazardous substances or subjected to extremes of temperature.

 

Storing and Handling Manual Lever Blocks

Never return damaged lever blocks to storage. They should be dry, clean and protected from corrosion.
Store lever blocks by their top suspension with chains clear of the ground.
Lever blocks 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.

Installing and Commissioning

Follow any specific installation instructions issued by the supplier and general requirements for slinging. Try the lever blocks to ensure that it operates correctly and that the brake is effective. Ensure that the chain is not twisted; it must move freely. The bottom hook must reach the lowest required position without the chain running out to the stop.

Using Lever Blocks Safely

Do not attempt any lifting operations unless you understand the use of the equipment and slinging procedures.
Do not use defective lever blocks, slings or accessories.
Check the slinging arrangement, ensuring that the lever block is safely rigged and that chains are not twisted. Do not use the load chain as a sling.
Check that the load is free to move before commencing a lift and that the landing area has been prepared.
Raise the load just clear, then halt the lift and check the integrity of the equipment.
Do not extend the operating lever, e.g. with a pipe, to force the block to operate.
Do not allow loads to swing out of control.
Keep fingers and toes etc. clear especially 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 and grease. Never replace the load chain without consulting the supplier.
Regularly inspect the lever block and, in the event of the following defects, refer the block to a Competent Person for thorough examination: illegible markings; wear; damage to hooks and fittings; damaged or distorted slack end stop; chains worn, bent, notched, stretched, corroded; chains that do not hang freely, are twisted or jump; load slips or will not lift; damaged casing; bent or cracked operating lever.

For a PDF version of this page click here: Care and Safe Use of Manual Lever Blocks