Manual Quick Coupler System at Earth Moving Machines

In order to quickly and safely disassemble and assemble attachments on earth moving machines, so-called "quick coupler" devices are used. Quick coupler devices provide ease of operation for the machine operator and also save time. The most important criterion in these devices is safety. Because if the attachment cannot be fully engaged or there is a malfunction in the locking system, it will be very dangerous. The systems of these apparatus are mentioned in the ISO 13031 standard. The equipment designed to meet all the requirements of the relevant standard has high costs because they have complex systems. For this reason, many machine operators, especially in our country, prefer to use quick coupler devices without any safety precautions. In this paper, the safety system used to make low-cost manual quick coupler devices more reliable will be discussed.