Lifting; Maintenance - Terrier FBK Owner's Manual

5

LIFTING

- Check whether the working load limit (W.L.L.) of the safety beam lifting clamp is
sufficient for the load created in the lifting situation.
- Attach the lifting clamp to the hoisting mechanism, either by means of a:
- safety shackle directly to a crane hook,
- coupling link or D-shackle,
- sling or chain, if necessary in conjunction with a coupling link or D-shackle.
- Ensure that all attachments have been tested and are of the correct tonnage. Make sure
that coupling links and shackles are of sufficient dimensions to allow the clamp to move
freely in the hook.
- Check whether the clamp shows any visible damage.
- Operate the lever to check whether the clamp opens and closes smoothly.
- Check whether the teeth of the cam are free from dirt and if necessary thoroughly clean
with a wire brush.
- Remove any grease, dirt and mill scale from the beam at the site of the lifting clamp.
- Use the lever to open the clamp.
- Place the jaws as far as they will go over the beam, making sure that the clamp is posi-
tioned so as to balance the load when it is being lifted.
- Make sure that the lifting shackle is facing towards the centre of the beam or structure.
- Close the clamp by fully turning the lever back.
- Lift gently to allow the lifting force to be applied; check whether the clamp is slipping.
- If the load is slipping, read through this section on lifting again.
- If the load continues to slip, read the following Chapter 6 - Maintenance.
- Make sure that the load is in a stable position, before taking the clamp off the beam
6

MAINTENANCE

From a safety point of view, please check the general condition of the clamp at least once
a month, according to the guidelines of Chapter 7 - Disassembling/Assembling.
Stop using the beam lifting clamp if:
- the body is split or deformed, particularly in the corners of the jaws,
- the lifting shackle is visibly deformed,
- the cam and/or pivot teeth are no longer sharp,
- the spring has become stretched or broken,
- the lever locking mechanism has become inefficient or has ceased to work,
- the shackle pins have been visibly deformed,
- any retaining pins are missing,
- the side of the lifting shackle is pressed in at the spacer pins.
Depending on the defects noted:
- dismantle and clean the beam lifting clamp (see Chapter 7 – Disassembly/Assembly) or
have the clamp overhauled by Terrier Lifting Clamps B.V. or by a recognized mechanical
repair centre (see Chapter 8 - Overhauling).
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