Locking Tongue
Стопорный язычок
Lengüeta de bloqueo
The 318812635 Locking Tongue is a precision-forged locking component designed for XCMG hydraulic excavators. As a critical non-engine auxiliary part, this locking tongue provides secure engagement between the bucket arm and the upper locking mechanism, preventing unintended movement and ensuring safe, reliable operation during digging and lifting tasks. Manufactured from high-strength alloy steel with a hardened surface, the 318812635 locking tongue guarantees exceptional wear resistance, consistent locking force, and long service life in the most demanding construction and mining applications.
The 318812635 Locking Tongue is a precision-forged locking component engineered for the bucket arm locking mechanisms of XCMG hydraulic excavators. As a non-engine auxiliary part, this tongue engages with the upper locking positioning block to securely lock the bucket arm in either the folded or extended position. Its robust design ensures consistent locking force, preventing unintentional movement during material handling and transport. The component is manufactured to exacting XCMG OEM standards, guaranteeing perfect compatibility and reliable performance.
Constructed from high-grade alloy steel (40Cr) and heat-treated to a hardness of HRC 50–55, the 318812635 locking tongue offers exceptional resistance to wear, impact, and deformation. The zinc plating with a black oxide topcoat provides excellent corrosion protection, making it suitable for use in wet, muddy, and chemically aggressive environments. Its precision-ground engagement surface ensures smooth operation and consistent locking, reducing the risk of jamming or premature release.
The 318812635 Locking Tongue features a forged, one-piece construction that eliminates weak points and ensures maximum structural integrity. Its engagement area is precision-ground to achieve a smooth, consistent surface that minimizes friction with the positioning block. This design results in smoother locking and unlocking actions, reducing operator effort and wear on the mechanism.
The tongue’s optimized geometry provides a positive lock with minimal clearance, eliminating play and reducing shock loads during operation. This not only improves machine stability but also extends the life of the locking mechanism and associated components. The zinc plating with black oxide coating offers superior corrosion resistance, ensuring that the tongue remains functional and reliable even in harsh environments such as mining, demolition, and coastal construction sites.
By using the genuine 318812635 locking tongue, operators can restore original locking performance and eliminate slop in the bucket arm. Its direct OEM fitment simplifies installation and ensures that the locking mechanism functions as intended, providing safe and reliable operation. This component is essential for maintaining machine safety and productivity.
The 318812635 Locking Tongue is specifically designed for use in XCMG hydraulic excavators, including models such as XE210, XE240, XE305, and other XE series machines. It is an integral part of the bucket arm locking system, securing the arm in the folded position for transport or extended position during operation. This ensures that the bucket arm remains stable and does not drift during work.
This locking tongue is suitable for a variety of heavy equipment applications beyond excavators, including wheel loaders, backhoe loaders, and demolition shears that utilize similar locking mechanisms. Its robust construction and precise dimensions make it ideal for demanding environments where reliable locking is essential for safety and operational efficiency.
When replacing a worn or damaged locking tongue, using the genuine 318812635 part ensures proper fit, material quality, and locking performance. Aftermarket tongues may not match the exact hardness or dimensional tolerances, leading to premature wear, loose locking, and potential safety hazards.
Installing the 318812635 Locking Tongue requires basic mechanical skills and standard hand tools. Before installation, thoroughly clean the mounting area and inspect the positioning block and pivot pins for wear or damage. Ensure the tongue is free from burrs or debris that could affect engagement.
Position the tongue into the locking mechanism, aligning the pivot hole with the corresponding pin. Secure it using the retaining pin or bolt, ensuring it is properly seated and free to pivot. Verify that the tongue engages fully with the positioning block when the arm is moved to the locked position. Adjust the linkage if necessary to achieve positive engagement.
Periodic inspection of the locking tongue is recommended as part of routine maintenance. Check for signs of wear, deformation, or corrosion on the engagement surface and pivot area. Lubricate the pivot point with grease to ensure smooth operation. Replace the tongue if any damage is detected to maintain safe and reliable locking.
The 318812635 Locking Tongue is manufactured in ISO 9001 certified facilities under strict quality control. The alloy steel is sourced from approved suppliers and undergoes chemical analysis and tensile testing to verify its properties. Each tongue is forged, heat-treated, and machined to precise tolerances, with critical dimensions inspected using coordinate measuring machines.
The zinc plating and black oxide coating are applied uniformly and tested for thickness and adhesion. The engagement surface is inspected for finish and geometry to ensure smooth locking action. Each unit is 100% inspected to guarantee compliance with XCMG’s stringent OEM specifications and to ensure safe and reliable operation.
Using genuine XCMG 318812635 locking tongues ensures proper fit, locking performance, and safety. Counterfeit tongues may lack proper heat treatment or have incorrect dimensions, leading to loose locking, premature wear, and potential failure. Always source genuine parts from authorized distributors.
The 318812635 Locking Tongue is a vital component for maintaining secure and reliable bucket arm locking in XCMG hydraulic excavators. As a non-engine auxiliary part, it ensures that the arm stays firmly in position during operation and transport, enhancing safety and preventing damage to the machine and surrounding equipment.
With its high-strength alloy steel construction, precision-ground engagement surface, and corrosion-resistant coating, this locking tongue offers exceptional durability and locking accuracy. Choosing the genuine 318812635 tongue protects your equipment from locking failures and reduces maintenance costs. Always source this part from authorized XCMG distributors to guarantee authenticity and full compliance with specifications.
Whether for planned maintenance or emergency repairs, the 318812635 locking tongue is the trusted choice of professionals who demand quality, reliability, and performance from every component in their heavy equipment.
