Size (CM)：93*48*25 

Weight (KG)：27.5

Brand
JUNXUN

Overview
The 856A2755G03 is a high-performance, master-grade Tapered Journal Seal Installation Tool Kit custom-engineered for the rigorous maintenance, modular repair, and overhaul (MRO) of CFM56 series turbofan engines. Classified as a flight-critical propulsion Ground Support Equipment (GSE) tooling asset, this specialized kit is purpose-built to facilitate the safe and absolute alignment of rotational seals onto high-tolerance tapered shaft journals. Manufactured by JUNXUN to comply with strict CFM International engine shop manual dimensions, the 856A2755G03 utilizes a precision-tapered guide sleeve system that bridges the journal-to-seal gap, enabling technicians to press seals into their final seated positions without lip rollover, surface scoring, or material deformation.

Key Points
Precision-Tapered Guide Interface: Custom-machined with micro-tolerance tapers that provide a seamless transition from the drive shaft thread diameter to the seal seat, eliminating lip-to-edge interference.

Axial Load-Balanced Seating: Features a dedicated push-mandrel assembly that applies uniform 360-degree force around the seal circumference, preventing asymmetric seating or internal spring dislodgement.

Aerospace-Grade Non-Marring Metallurgy: Fabricated from premium, passivated structural alloys or reinforced high-density polymers that safeguard the highly polished shaft journals from scratches during the sliding installation process.

Comprehensive CFM56 Compatibility: Fully indexed and sized to cover multiple primary shaft applications within the CFM56 accessory gearbox and high-pressure rotor housing assemblies.

Applications
CFM56 Accessory Drive Module Overhaul: Deployed by certified aero-engine technicians to replace worn oil seals on primary accessory drive shafts during scheduled C-checks or D-checks.

Propulsion System Leakage Remediation: Utilized within specialized maintenance bays to rectify chronic oil weeping at shaft interfaces by ensuring new seals are installed to factory-certified benchmarks.

Airlines Engine Tool Crib Fleet Supply: Essential specialized tooling inventory for global airlines and third-party MRO facilities servicing the A320 and B737 fleets to ensure zero-leak maintenance compliance and maximum dispatch reliability.

 856A3924G01 is a precision structural and hydraulic interface component for aviation maintenance tools and ground support equipment, compatible with global narrow-body, wide-body and regional commercial aircraft fleets. Manufactured in strict compliance with AS9100D aerospace quality standards and FAA/EASA safety specifications, it is precision-machined from high-strength, corrosion-resistant aerospace-grade alloy with a hardened, anti-wear and anti-fatigue surface treatment. Engineered to endure harsh airfield conditions including continuous vibration, mechanical shock, extreme temperature fluctuations, and exposure to hydraulic fluid, jet fuel and deicing chemicals, it features ultra-tight dimensional tolerances and industry-standard mounting and fluid ports for direct drop-in integration. It improves system rigidity, sealing reliability and operational stability, effectively extending service life and ensuring safe, consistent performance in worldwide aircraft MRO operations.