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TK1573-918-1 – Textron Aviation OEM Propeller Beta Ring Puller
Available now on the Airparts.aero Marketplace.
Overview
The Textron Aviation TK1573-918-1 is a genuine OEM, flight-critical specialty tool, specifically a Propeller Beta Ring Puller. This heavy-duty tool is engineered for the safe and precise removal of the propeller's beta feedback ring, a key component in the propeller control and reversing system. It is designed for use during the maintenance, repair, and overhaul of the propeller assembly on Beechcraft 1900 and other turboprop aircraft, typically those equipped with Hartzell 3, 4, or 5-blade propellers.
This is a precision-machined tool designed by the airframe manufacturer to apply a perfectly uniform pulling force without damaging the delicate and expensive propeller or beta ring components. Its use is essential for preventing stress, warping, or cracking of the ring during removal. As a genuine Textron OEM tool, it guarantees a perfect fit and the correct application of force as specified in the aircraft maintenance manual.
Key Features
Genuine Textron Aviation OEM Tool: The original, factory-specified tool, guaranteeing perfect fit, form, and function for the intended maintenance procedure.
Component-Specific Design: Engineered exclusively to interface with the propeller beta ring on specific Hartzell propeller models used on the Beechcraft 1900.
Prevents Component Damage: Designed to apply an even, axial pulling force, which is critical for removing the precision-fit beta ring without damaging it or the propeller hub.
Heavy-Duty Construction: Fabricated from high-strength, machine-grade steel to withstand the high tensile forces required for the pulling operation.
Essential for Propeller MRO: A mandatory tool for any maintenance facility, FBO, or operator performing propeller rigging or overhaul on the specified aircraft models.
Technical Specifications
Part Number: TK1573-918-1
Component Type: Specialty Tool, Propeller Beta Ring Puller
OEM Manufacturer: Textron Aviation (Hawker Beechcraft)
Material: High-Strength Steel Alloy
Application: Removal of Propeller Beta Feedback Ring
Governing Specifications: Manufactured to proprietary Textron Aviation engineering drawings and quality standards.
Aircraft Compatibility
This tool is the specified OEM puller for maintenance on turboprop aircraft, most notably:
Beechcraft (Textron Aviation): 1900, 1900C, 1900D
Propeller Systems: Hartzell 3, 4, and 5-blade propeller assemblies (as installed on the above aircraft).
Note: This compatibility list is for general reference. The specific aircraft or propeller Component Maintenance Manual (CMM) is the final and absolute authority for determining the correct tool for any maintenance task.
Applications
Propeller Overhaul & Repair: Used by certified propeller technicians to safely disassemble the propeller hub and control system.
Beta System Maintenance: Required for accessing and servicing the beta feedback ring, beta valve, and other components of the propeller's reversing and ground fine pitch control system.
Scheduled Inspections: May be required for certain deep inspections of the propeller hub assembly.
Why Choose TK1573-918-1?
The propeller beta ring is a precision-machined component that is critical for safe ground and reverse operations. Attempting to remove it with improvised tools or a generic puller will almost certainly result in catastrophic damage, leading to a multi-thousand-dollar component replacement and significant aircraft downtime. The genuine Textron Aviation TK1573-918-1 is the only tool engineered to fit the component perfectly and apply force in the exact manner intended by the manufacturer. For the safety of the maintenance personnel and the integrity of the aircraft's propeller system, there is no substitute for this certified OEM tool.
The engineering principle behind the TK1573-918-1 tool is the safe handling of interference fits and delicate alignments. The beta ring, which translates the pilot's commands into the propeller's pitch-change mechanism, is often a tight, precision fit onto the hub. The puller assembly is designed to engage secure, non-load-bearing points on the hub while a central threaded jackscrew presses against a hardened point on the prop shaft. As the jackscrew is turned, it develops a massive, controlled axial force that overcomes the static friction of the interference fit. The puller's rigid body acts as a stable reference plane, ensuring the ring is drawn off perfectly straight along its axis, preventing it from binding or being subjected to the damaging, non-axial "prying" forces that would be introduced by any other removal method.
Note: The TK1573-918-1 is a specialty maintenance tool. It must only be used by certified A&P/IA mechanics with specific training on Hartzell propeller systems. Its use must be performed in strict accordance with the procedures and torque values outlined in the official Textron Aviation and Hartzell maintenance manuals. Improper use can result in severe damage to the propeller and personal injury.
Documentation
No public-facing OEM specification sheet was located for this proprietary tool. All authoritative technical data, procedures, and applications are contained within the official Textron Aviation Beechcraft 1900 Series Maintenance Manual and the relevant Hartzell Propeller Component Maintenance Manual (CMM).
