A: The locking hooks slowly creeping open under continuous bucket loading work, visible grease or hydraulic oil weeping around the small actuator lines, and loose jaw play.
A: Operators must conduct a standard bucket ground-bump pressure test to verify the safety lock has clicked into place before lifting attachments over working crews.
A: This model code specifies the complete secondary coupler framework unit, but parts managers can order our full installation kit including control wiring and lines for direct retrofitting.
A: The main framework is cast from premium high-tensile steel and reinforced at maximum stress points, preventing structural cracking or ear expansion from intense hammer vibration.
Q: What quality options are available?
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies






















