803011897 boom extension pin hydraulic cylinder for XCMG RP705 paver spare parts

product parameters

- Part Number: 803011897
- Name: Boom Pin Extension Cylinder
- Applicable Model: RP705 medium crawler paver
- Material: Seamless steel barrel, alloy piston rod
- Process: Honing, rod chrome plating, seal assembly, pressure test, anti-corrosion packaging
- Matching Parts: Hydraulic hose, hinge pin, bushing, wiper seal, lock pin
- Function: Actuate telescopic lock pin, lock and release screed boom, switch paving width

Applicable Scenarios

It is mounted on the screed boom locking mechanism of RP705 paver for asphalt paving on municipal roads, highways, yards and airport runways.

- Original factory assembly, pressure tested at the factory, low risk of leakage.
- Honed cylinder barrel + chrome-plated rod, wear-resistant and stain-resistant, suitable for dusty construction site environments.
- Multiple sealing structures, resistant to high-temperature hydraulic oil, and less prone to oil leakage during long-term continuous operation.
- Integrated hinge lugs allow for direct alignment and installation without additional modifications.
- Smooth operation, clear locking pin engagement, and minimal risk of partial locking or play.
- Effective dust protection reduces asphalt powder intrusion and extends seal life.

FAQ

Q: Can a cylinder with minor seepage stay in service?
A: Light rod seepage may be monitored temporarily. Replace or overhaul once the cylinder becomes weak or drips continuously.

Q: Why does the pin fail to fully extend or retract?
A: Common causes include insufficient pressure, failed seals, side loading and jammed lock pin. Inspect circuit, cylinder and pin guide together.

Q: Can a modified non-standard cylinder serve as replacement?
A: Not recommended. Mismatched stroke, mounting dimension and force may cause pin jamming or unreliable locking.

Q: What happens if the cylinder fails?
A: The screed loses positive locking, the telescopic section drifts and paving flatness deteriorates.