252101040 connector block for XCMG ZL50G/ZL50GL Wheel Loader

product parameters

Part Number：252101040 Connector Block
Applicable Model：XCMG ZL50G, ZL50GL Wheel Loader
Material：Carbon steel / aluminum alloy
Surface Treatment：Blackening / anodizing / phosphating anti-rust
Thread Specification：Hydraulic standard thread
Working Medium：L-HM46 anti-wear hydraulic oil
Working Temperature：-20℃ ~ 80℃
Connection Form：Thread connection, bolt fixed installation
Inspection Items：Dimensional inspection, thread detection, internal cleanliness inspection, pressure holding test, appearance inspection

Applicable Scenarios

It is used for multi-oil-path convergence and distribution of steering, pilot and auxiliary hydraulic circuits of 5-ton wheel loader, suitable for earthwork, quarry, sand yard and other high-vibration construction conditions.

• Produced according to OEM specifications, oil port layout and mounting hole positions match the original installation position, direct replacement without modification.
• Integrated multi-channel design, reduce the quantity of scattered transition joints and reduce potential leakage points.
• Smooth internal flow channel, low flow resistance, small pressure loss, little influence on oil supply efficiency.
• Compact structure, centralized pipeline connection, effectively save installation space.
• Good structural rigidity, not easy to deform under long-term vibration and pressure impact.
• Convenient pipeline inspection and maintenance, easy to disassemble each branch pipeline separately.
• Stable batch consistency, easy inventory management for spare parts.

FAQ 

Q: Can I drill new oil ports on the connector block by myself?
A: It is forbidden. Random drilling will destroy the internal oil passage wall thickness, cause oil channel cross-connection, and crack under pressure, leading to serious oil leakage.

Q: What are the common causes of oil leakage of the connector block?
A: Thread bruising, loose thread tightening, damaged sealing ring, sand and impurities between joint surfaces are the main causes of leakage.

Q: What should be checked before installation?
A: Check whether the block body has cracks, sand holes and thread damage, clean the sundries inside each oil port to prevent impurities entering the hydraulic system.

Q: What will happen if the thread is over-tightened?
A: Excessive torque will cause thread slippage, or even crack the connector block body, resulting in permanent scrapping.

Q: What is the difference between aluminum alloy and carbon steel connector block?
A: Aluminum alloy is light in weight, suitable for medium-pressure circuits; carbon steel has higher strength and pressure resistance, suitable for high-pressure hydraulic circuits.

Q: How to maintain the connector block in daily use?
A: Regularly check all threaded joints for oil seepage, check whether the fixing bolts are loose, and avoid heavy impact on the block.