A: Hydraulic oil pooling under the joystick rubber boots, levers that feel stiff or slow to center, and slow attachment activation after shifting handles.
A: Workshop mechanics must thoroughly clean the valve plunger rods of any burrs using fine emery cloth, and grease the new seals before sliding them over the shaft.
A: This kit is a complete dual-tower master packing solution, supplying parts buyers with all the matching o-rings needed to rebuild a pair of 4-axis control blocks.
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






















