Haklift Oy
Asessorinkatu 3-7
20780 Kaarina, Finland
Tel. +358 2 511 5511
www.haklift.com
Lifting Solutions Group
Axel Johnson International
CHAIN
1. Clean chain with a non-caustic/non-acid type solvent and make a link by link inspection for nicks, gouges,
twisted links, weld splatter, corrosion pits, striations, cracks in weld areas, wear and stretching. Chain with
any one of these defects must be replaced.
2. Slack the portion if the chain that normally passes over the liftwheel. Examine the interlink area for the point
of maximum wear. Measure and record the stock diameter at this point of the link. Then measure stock
diameter in the same area on a link that does not pass over the liftwheel and compare these two
measurements.
3. Also check chain for stretch using a larger caliper as show below to measure the outside length of a
convenient number of links about 11 (pitchs). Measure the same number of links in a used section of chain
and calculate the percentage increase in length of the worn chain.
4. Chain is to be kept clean and lubricated. Visually check chain every time chain hoist is used. As oil needs
to sit at the bearing surface of each chain link, it is advised to submerge the chain in oil for 30 min. Take it
out and let the chain hang dripping for 24 hours before putting in the hoist.
