Excavators are indispensable machines in the construction and mining industries, known for their versatility and efficiency. One of the key components that enhance their functionality is the quick hitch coupler, which allows for rapid attachment changes. However, a common issue that operators may encounter is the quick hitch coupler cylinder not stretching and retracting as it should. This problem can significantly hinder productivity and may lead to costly downtime. In this article, we will explore the potential causes of this issue and provide practical solutions to get your excavator back in optimal working condition.
Hydraulic quick hitch hydraulic cylinder is not flexible due to the following reasons, and the corresponding solutions are as follows:
1. Circuit or solenoid valve problem
• Possible reasons:
The solenoid valve does not work due to broken wires or virtual connection.
The solenoid valve is damaged by collision.
• Solution:
Check whether the circuit is disconnected or virtual connection, and rewire.
If the solenoid coil is damaged, replace the solenoid coil; or replace the complete solenoid valve.
2. Cylinder problem
• Possible reasons:
The valve core (check valve) is prone to jamming when there is a lot of hydraulic oil, causing the cylinder to not retract.
The oil seal of the cylinder is damaged.
• Solution:
Remove the valve core and put it in diesel to clean it before installing it.
Replace the oil seal or replace the cylinder assembly.
3. Safety pin problem
• Possible reasons:
When replacing the attachment, the safety shaft is not pulled out, causing the cylinder to be unable to retract.
• Solution:
Pull out the safety pin
The above methods can usually solve the problem of hydraulic quick connector hydraulic cylinder being inflexible. If the above methods cannot solve the problem, it is recommended to contact professional maintenance personnel for inspection and repair.
IF you have any question,please contact HMB excavator attachment whatsapp:+8613255531097
Post time: Oct-08-2024