Size (CM): 21*17*9

Weright (KG): 0.6

Overview

The 856A3114G01 is a specialized fastener wrench engineered exclusively for the Variable Bleed Valve (VBV) system of the CFM56 engine. This precision tool is designed for the installation and removal of the ballscrew actuators, which are critical components for controlling engine airflow and preventing compressor stalls. By providing a perfect fit for VBV-specific fasteners, the 856A3114G01 ensures that technicians can apply exact torque loads, maintaining the operational integrity and response accuracy of the VBV system.

Key Points

VBV System Optimization: Custom-designed to interface with the unique fasteners of the VBV ballscrew actuator, allowing for secure engagement in often congested engine bays.

Precise Torque Control: Engineered to work seamlessly with calibrated torque equipment, ensuring that all VBV hardware meets strict OEM clamping force specifications.

Reduced Fastener Wear: The high-tolerance machined head prevents 'rounding' or stripping of specialized aerospace fasteners, extending the life of expensive actuator components.

Aerospace-Grade Durability: Forged from high-strength alloy steel with a professional industrial finish to withstand the rigorous environment of line maintenance and shop overhauls.

Application

VBV System Overhaul: Essential for the removal and replacement of ballscrew actuators during scheduled maintenance or system troubleshooting.

Airflow Control Maintenance: Used by technicians to ensure the mechanical linkages of the VBV system are secured to flight-ready standards.

MRO & Line Maintenance: A standard tool for aviation hangars servicing CFM56-5B and -7B engines, critical for maintaining engine surge protection systems.