Abus ABUCompact GM2

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Ins p ect i o n | C h ec k i ng t h e we ar o n t h e ch a i n

CHECKING THE WEAR ON THE

CHAIN

To check the wear, the length of eleven chain links is

measured. Depending on the calliper used and the

chain hoist, this can be measured directly or in three

stages.

Raise a lightweight load slightly to tension the

chain.

Measuring directly:

Measure the length ‘l’ over 11 chain links of the

chain (from outer edge to outer edge).

Compare the measured value with the table

(see page 35). The measured value should not

exceed the maximum ‘l’.

Measure again at several points and compare

them.

If the length exceeds the specified value, the

chain has been stretched too much through

operation. Exchange the chain and chain

sprocket. See “Exchanging the chain and chain

sprocket” page 45.

Measure in steps:

3 chain links 5 chain links

3 chain links

Measure 3 chain links from outside to outside

‘l1’.

Measure 5 chain links from inside to inside ‘l2’.

When doing so, do not measure the five chain

links completely from inside to inside, but only

place the calliper on the respectively next chain

link.

Measure 3 chain links from outside to outside

‘l3’.

Add the measured values together.

Compare the measured value with the table.

The measured value should not exceed the

maximum ‘l’.