Q: How do I identify failure in the R220-9S bucket cylinder seals?
A: Look for "bucket creep" where the attachment fails to hold its position, or visible oil weeping at the cylinder head. If you notice hydraulic fluid mixed with dirt or reduced breakout force, the internal seals of your R220-9S kit are likely worn out.
A: Look for "bucket creep" where the attachment fails to hold its position, or visible oil weeping at the cylinder head. If you notice hydraulic fluid mixed with dirt or reduced breakout force, the internal seals of your R220-9S kit are likely worn out.
Q: What are the key technical steps for a professional installation?
A: Ensure the cylinder rod is polished and free of burrs. Always lubricate new seals with clean hydraulic oil before assembly. We recommend using seal installation tools to avoid pinching the U-cup lips, which is the most common cause of immediate leaks.
A: Ensure the cylinder rod is polished and free of burrs. Always lubricate new seals with clean hydraulic oil before assembly. We recommend using seal installation tools to avoid pinching the U-cup lips, which is the most common cause of immediate leaks.
Q: How do I verify this kit fits my specific Hyundai fleet?
A: This kit is a direct replacement for R220-9S and R220LC-9S models. Cross-check your machine’s serial number or the cylinder part number from the manual. If you have non-standard cylinders, measuring the rod and bore diameter can confirm the fit.
A: This kit is a direct replacement for R220-9S and R220LC-9S models. Cross-check your machine’s serial number or the cylinder part number from the manual. If you have non-standard cylinders, measuring the rod and bore diameter can confirm the fit.
Q: How does this kit handle extreme mining or high-heat conditions?
A: Our kit maintains stable elasticity from -35°C to 110°C. The high-performance TPU material is specifically chosen to resist thermal degradation and extrusion under the high-pressure spikes and constant thermal cycling typical of open-pit mining.
A: Our kit maintains stable elasticity from -35°C to 110°C. The high-performance TPU material is specifically chosen to resist thermal degradation and extrusion under the high-pressure spikes and constant thermal cycling typical of open-pit mining.
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
