07-08-2025, 08:26 PM
When operating a 320C excavator, some users face a common question: Can I use the stick circuit (main boom circuit) as my auxiliary hydraulic circuit to drive external attachments? This article will explore this issue and offer operational advice.
Problem Description: Can the Stick Circuit Be Used as an Auxiliary Circuit?
Many operators want to switch the main boom hydraulic circuit with the auxiliary hydraulic circuit, especially when there is no dedicated auxiliary circuit available. This is often done to drive attachments such as breakers, drills, or other hydraulic-powered tools when the auxiliary system is not in use.
Main Difference: Design of the Stick Circuit vs. Auxiliary Circuit
To understand the feasibility of this setup, it's important to first distinguish the difference in design between the two circuits. The stick circuit is primarily used for operating the main boom and bucket, designed with higher flow and pressure to handle heavy-duty tasks. On the other hand, the auxiliary circuit is usually designed to operate attachments, with lower flow and pressure to suit various auxiliary tools.
Feasibility: Limitations of Using the Stick Circuit as the Auxiliary
While it’s technically possible to use the stick circuit in place of the auxiliary circuit, it's not ideal. The stick circuit’s higher pressure and flow may damage sensitive attachments or cause unstable control. Additionally, prolonged use of the main circuit for auxiliary tools could lead to premature wear and tear on the stick circuit.
Solution: Adding an Auxiliary Hydraulic System or Modification
For operations requiring auxiliary circuits to drive tools, the best solution is to install a dedicated auxiliary hydraulic system. Many excavators, including the 320C, offer optional auxiliary systems that can be easily connected to provide stable hydraulic support for various attachments. If an auxiliary system is unavailable, operators may consider modifying the machine to add additional hydraulic circuits.
Conclusion: The Importance of an Auxiliary Hydraulic Circuit
While it is possible to use the main boom circuit in emergencies, this is not recommended for long-term use. To ensure the safe operation of attachments and maintain the longevity of the machine, using a dedicated auxiliary hydraulic circuit is the best option. This not only increases operational efficiency but also helps prevent unnecessary damage to the equipment.
Problem Description: Can the Stick Circuit Be Used as an Auxiliary Circuit?
Many operators want to switch the main boom hydraulic circuit with the auxiliary hydraulic circuit, especially when there is no dedicated auxiliary circuit available. This is often done to drive attachments such as breakers, drills, or other hydraulic-powered tools when the auxiliary system is not in use.
Main Difference: Design of the Stick Circuit vs. Auxiliary Circuit
To understand the feasibility of this setup, it's important to first distinguish the difference in design between the two circuits. The stick circuit is primarily used for operating the main boom and bucket, designed with higher flow and pressure to handle heavy-duty tasks. On the other hand, the auxiliary circuit is usually designed to operate attachments, with lower flow and pressure to suit various auxiliary tools.
Feasibility: Limitations of Using the Stick Circuit as the Auxiliary
While it’s technically possible to use the stick circuit in place of the auxiliary circuit, it's not ideal. The stick circuit’s higher pressure and flow may damage sensitive attachments or cause unstable control. Additionally, prolonged use of the main circuit for auxiliary tools could lead to premature wear and tear on the stick circuit.
Solution: Adding an Auxiliary Hydraulic System or Modification
For operations requiring auxiliary circuits to drive tools, the best solution is to install a dedicated auxiliary hydraulic system. Many excavators, including the 320C, offer optional auxiliary systems that can be easily connected to provide stable hydraulic support for various attachments. If an auxiliary system is unavailable, operators may consider modifying the machine to add additional hydraulic circuits.
Conclusion: The Importance of an Auxiliary Hydraulic Circuit
While it is possible to use the main boom circuit in emergencies, this is not recommended for long-term use. To ensure the safe operation of attachments and maintain the longevity of the machine, using a dedicated auxiliary hydraulic circuit is the best option. This not only increases operational efficiency but also helps prevent unnecessary damage to the equipment.
