Proper lubrication is very important for chain operation. The manufacturer usually ships large pitch conveyor chain without lubrication or rust protection. Therefore, before start-up, you must apply lubricating oil, such as SAE30 or SAE40, by brush or drip. You should lubricate mainly the bushings and rollers (Figure 7.18).
To maximize the life of your chain during normal operation, lubricate it at least once a week.
NOTE: Lubricate more often immediately after you install the chain and if the chain is used in harsh conditions (for example, at high speed, high load, high temperature).
Figure 7.18 Proper Lubrication of Large Pitch Conveyor Chains