The Replacement and Maintenance of Harvester Chain

As we know, the chain is a very important spare part of a rice harvester. And we need to take care of it when using the machine every day.

The Replacement and Maintenance of Harvester Chain

The Checking of Harvester Chain:

How to check the chain whether an issue?

Check that the sprocket is not skewed or wobbling on the shaft. In the same transmission system, the faces of two sprockets should be in the same line. When the center distance of the sprockets is less than 0.5 meters, the allowable deviation is 1 mm; when the center distance of the sprockets is more than 0.5 meters, the allowable deviation will be 2 mm.

However, the phenomenon of friction on the side of the sprocket teeth is not allowed. If the two-wheel knitting is too large, it will easily cause off-chain and accelerated wear. Care must be taken to check and adjust the offset when replacing sprockets.

The chain tension should be appropriate, not too close, otherwise, the bearing will be worn. Press down from the middle of the chain, and the center distance between the two sprockets is about 2%-3% which will be a good state.

If the new chain is too long or stretched after use that will be hard to adjust. You can remove the chain links according to the situation, but it must be an even number. The links should pass through the back of the chain with the cleats inserted outside, and the openings of the cleats should face the opposite direction of rotation.

When the sprocket is severely worn, the sprocket and chain should be replaced at the same time, not just the sprocket or chain. to extend service life. Do not mix old and new chains, because they have different strengths, so as not to damage the harvester or delay harvesting. In the use of new and old chains, lubricating oil is essential.

When the machine is stored for a long time after the season, the chain should be removed and cleaned with kerosene or diesel oil, then coated with oil or butter and stored in a dry place to prevent rust.

The Checking of Harvester Chain

The Replacement of the Harvester Chain:

How to replace the chain?

Firstly, secure the machine and the parts to be replaced without shaking.

Secondly, wash off dirty grease with detergent. Then prepare some clean lube.

Thirdly, hold the sprocket on the larger end with your hand, turn the other end of the sprocket with the other hand or another person, and the chain will be taken off.

replace the chain

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