The FB chain gauge also enables you to pre warn the customer that the chain may need changing at the next service.
The FB chain wear gauge is a “how much worn” chain gauge showing chain wear in ¼ percent increments from 0 per cent worn to 4 per cent worn with a red warning box appearing at 2 per cent. Old style chain gauges only tell you a chain is worn or not worn. Using the FB chain wear gauge makes it easy to decide if a chain could be dangerously worn out before the next service, leading to the equipment being operated hazardously. Issuing the FB chain gauge to all your engineers also ensures a level of consistency across the whole service team.
The FB chain wear gauge was primarily designed for the measurement of leaf or forklift chain wear, it may also be used to measure all chain with an imperial pitch.
It is recommended that when conducting chain inspections the user observes the requirements of The Lifting Operations and Lifting Equipment Regulations (LOLER) 1998, The Provision & Safe Use of Work Equipment Regulations (PUWER) 1998, the FLTA Technical Bulletin 02 and the BITA Guidance Notes GN15 and GN28.
Competent persons carrying out safety inspections should meet the requirements of BS EN45004:1995. Leaf chain failure, other than a sudden breakage due to operator error, shockload or overload, is normally a gradual process during which time the chain elongates as it wears. The accumulative effect of this chain wear is a significant increase in the actual pitch of the chain. This accurate device measures the chain wear and indicates the percentage elongation.
All high quality chain is manufactured to consistently tight tolerances and it is considered that the chain is worn beyond its safe service life when the nominal pitch length has been extended by 2 per cent to 3 per cent.
At this point the fatigue life of the chain is reduced and the ultimate breaking strength is considerably lower.
A chain that is elongated by 2 per cent is becoming dangerous and the competent person must determine a safe time limit for replacement. A chain that is elongated by 3 per cent must be renewed immediately. Until the chain is renewed the equipment to which it is fitted must not be used.
It is recommended that wherever possible the chain should be cleaned and measured in situ with the chains placed under load. The recommended load equates to approximately 1 per cent of the minimum breaking load of the chain. Without the availability of a set of check weights it is, for the purpose of putting the chain under load, normally sufficient to allow the chains to be tensioned by the weight of the carriage and forks.
It is particularly important to measure that section of chain that passes over a pulley, this being that part of the chain that wears the most as the chain articulates during normal operation. FB Chain wear gauge is an accurate measuring device and has been developed to give an early indication of wear and identify potential chain failure.