Chain technique


In a well assembled construction that is correctly lubricated, maintenance is restricted to ensuring that the whole assembly and lubrication methods remain satisfactory.

Periodic  check:
• The installation geometry, and particularly the sprocket alignment and tooth wear,
• The state of the chain, particularly to detect traces of rub- bing indicating a geometrical failure or accidental structural contact and to assess the amount of wear:
→ wear of the chain articulations is measured directly by its length (using a measuring instrument or a control ruler), either by appreciation or measurement of its slack or moving the tensioning device,
→ wear of the linkplates of leaf chains,
→ wear of the rollers and wheels.

• If necessary, find out the cause of wear and rectify it. If it is necessary to change a sprocket or a chain due to exces- sive wear (more than 2% for the length of a chain, or more than 5% for the height of the plate), then it is better to change both the chain and sprocket or rollers at the same time.

Given the high resistance of its components, the chain is susceptible to being weakened by hydrogen. Oxidising and corrosive environments must therefore be avoided.
An acidic environment is also to be avoided at all costs. The most stringent precautions should be taken when removing grease from the chain.
All superficial treatments to the chain, and in particular electrolytic treatents, are to be avoided.
For these types of environments, consult us for an eventual solution.