856A3257G01 Front Rotating Air Seal Puller for Aircraft Maintenance
PULLER-FORWARD ROTATING AIR SEAL LPT
Size (CM):48.5*48.5*19
Weight (KG):11
Overview
The 856A3257G01 is a specialized Front Rotating Air Seal Puller meticulously engineered for the CFM56 engine series. This professional-grade extraction tool is specifically designed for the removal of air seals within the Low Pressure Turbine (LPT) module. As an essential piece of Ground Support Equipment (GSE), the 856A3257G01 provides the controlled mechanical leverage required to extract rotating seals without compromising the delicate mating surfaces or the integrity of the LPT shaft assembly.
Key Points
LPT Specific Geometry: Custom-contoured to interface perfectly with the CFM56 front rotating air seal, ensuring a secure and balanced grip during extraction.
Zero-Damage Extraction: Engineered to apply uniform axial force, preventing the tilting, binding, or scratching of the seal face—critical for maintaining engine pressurization standards.
OEM-Equivalent Standards: Built to comply with official maintenance manual specifications, ensuring the tool meets the rigorous safety and quality requirements of the aerospace industry.
Rugged Construction: Manufactured from high-tensile, heat-treated tool steel with a corrosion-resistant finish, optimized for the high-cycle demands of a professional MRO environment.
Application
LPT Module Disassembly: Used during the overhaul of the low-pressure turbine to remove air seals for inspection or replacement.
Engine Hot Section Maintenance: A vital tool for technicians performing repairs on the CFM56 engine core where sealing integrity is paramount.
Certified MRO Operations: Indispensable for aviation maintenance facilities servicing Boeing 737 and Airbus A320 fleets powered by CFM56 engines.

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