This is a cylinder sleeve bearing bushing, a crucial component for supporting and aligning the piston rod within Volvo excavator hydraulic cylinders. It is manufactured with precision to provide a low-friction, wear-resistant surface that ensures smooth rod movement and protects the cylinder bore, unlike a worn bushing that allows excessive play and potential scoring. Operators may notice increased noise or vibration from the hydraulic system, or a loss of precision in cylinder movement when this bushing fails.
Always verify with serial number before ordering.
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Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
Early signs of a worn bushing include increased noise or vibration from the hydraulic cylinder during operation, or a slight 'sloppiness' in the controlled movement. If ignored, the excessive play can lead to accelerated wear on the cylinder rod and seals, potentially causing leaks and premature cylinder failure. Continued operation risks damage to the cylinder bore and rod, leading to more extensive and costly repairs.
Ensure the cylinder bore is perfectly clean and free of any debris before pressing in the new bushing. Use a proper press and appropriate driver tool to install the bushing straight and flush.
Inspect the hydraulic cylinder rod for scoring or wear, and check the condition of the cylinder seals when replacing this bushing.