TV3-117 Turboshaft Engine Maintenance Manual Book 1 Section 072 – Engine Repair & Troubleshooting PDF

Description

TV3-117 Turboshaft Engine Maintenance Manual – Book 1 Section 072

This is the complete Book 1, Section 072 of the TV3-117 (TB3-117) turboshaft engine maintenance manual, published under document number 078.00.5700 P3. It is the primary technical reference for the engine itself, covering design, functioning, maintenance, troubleshooting, and servicing of the TV3-117 turboshaft engine and its assemblies, systems, and accessories. This section is common to all engine models and forms the foundation of the three-book maintenance manual set.

File Details

• Manual Type: Turboshaft Engine Maintenance Manual
• Engine Model: TV3-117 (TB3-117), all models
• Document Number: 078.00.5700 P3
• Book / Section: Book 1, Section 072
• Language: English
• File Format: PDF
• Page Count: 546 pages
• Publication Date: January 15, 1986 (with revisions through November 17, 1993)

Chapters Covered

• Section 072.00.00 – Engine: General, Description, Operation, General Instructions on Engine Operation, Emergency Procedures, Trouble Shooting, List of Engine Faults Possible in Service, Servicing (External Depreservation, De-Inhibiting, Preservation, Cranking, Dust-Protection Device Operations, Gas Flow Duct Cleansing), Removal/Installation (Unpacking, Installation, Removal), Adjustment/Test (Engine Starting, Dry Motoring, Wet Motoring, Shutdown, Test After Installation, Simultaneous Test of Two Engines), Storage Instructions, Shipment, Appendices (Engine Tools Kit, Lubricants and Sealing Compounds, List of Materials)
• Section 072.03.00 – Electric Wiring: Description and Operation (General, Description), Maintenance Practices (Removal/Installation of Electric Wire Harness, Removal/Installation of Thermocouple Harness, Termination and Soldering of Wires, Wiring and Mounting of Connectors)
• Section 072.30.00 – Compressor: Description and Operation (General, Description), Maintenance Practices (Inspection of Compressor, Measurement of Wear of Compressor Rotor Stage 1 Blades, Replacement of Engine Front Attachment Flange, Replacement of Feedback Lever)
• Section 072.40.00 – Combustion Chamber: Description and Operation (General, Description, Operation), Maintenance Practices (Inspection of Combustion Chamber Casing, Replacement of Flame Tube Mounts)
• Section 072.50.00 – Turbine Assembly: Description and Operation (General)
• Section 072.51.00 – Compressor Turbine: Description and Operation (General, Description)
• Section 072.53.00 – Free Turbine: Description and Operation (General, Description), Maintenance Practices (Inspection of Free Turbine and Housing of Fourth and Fifth Support Assemblies, Inspection of Engine-to-Main Gearbox Torsion Shaft, Replacement of Engine-to-Main Gearbox Torsion Shaft, Replacement of Free Turbine Assembly)
• Section 072.58.00 – Exhaust Section: Description and Operation (General, Description), Maintenance Practices (Inspection of Exhaust Stack, Replacement of Exhaust Stack, Turning of Exhaust Stack, Replacement of Tail Pipe Attachment Coupling Clamp)
• Section 072.60.00 – Accessory Drives: Description and Operation (General, Description and Operation), Maintenance Practices (Replacement of Modified Outer Split Horizontal Flexible Shaft of Main Rotor Speed Governor Drive, Check of Modified Outer Horizontal Flexible Shaft for Operational Status, Inspection of Outer Split Horizontal Flexible Shaft, Replacement of Free Turbine Speed Governor Driving Gear in External Drive Gearbox, Removal/Installation of Centrifugal Fuel Pump Drive Carbon Face Seal, Removal/Installation of External Drive Gearbox, Removal/Installation of Internal Drive Gearbox, Replacement of Main Rotor Speed Governor Drive, Replacement of Vertical Flexible Shaft)
• Section 072.90.00 – Engine Oil and Breather System: Description and Operation (General, Description, Operation), Trouble Shooting, Maintenance Practices (De-Inhibiting Oil System, Inhibiting Oil System, Adjusting Oil Pressure, Inspection and Washing of Protective Filter)
• Section 072.90.02 – Oil Filter: Description and Operation, Maintenance Practices (Removal/Installation of Oil Filter, Inspection and Washing of Oil Filter)
• Section 072.90.03 – Oil Pump Block: Description and Operation, Maintenance Practices (Removal/Installation of Oil Pump Block, Inspection and Washing of Oil Pump Block Pressure-Reducing Valve)
• Section 072.90.04 – External Drive Gearbox Oil Scavenge Pump: Description and Operation, Maintenance Practices (Removal/Installation of Gas Generator Tach Generator Drive Face Seal, Replacement of External Drive Gearbox Oil Scavenge Pump and Pump Drive Gears)
• Section 072.90.12 – Cutoff Valve: Description and Operation, Maintenance Practices (Inspection and Washing of Cutoff Valve)
• Section 072.90.13 – Chip Detector: Description and Operation, Maintenance Practices (Inspection, Washing and Function Testing of Chip Detector)

The TV3-117 Turboshaft Engine Maintenance Manual Book 1 Section 072 gives technicians, engineers, and maintenance crews a complete framework for working on the TV3-117 engine. It opens with a thorough technical description of the engine’s design and operating principles, then moves into practical guidance for everyday and scheduled maintenance. The troubleshooting chapter lists specific engine faults with detailed flowcharts to isolate causes, from starting issues and gas temperature anomalies to oil leaks and chip detector warnings. The servicing section covers preservation, depreservation, cranking procedures, and gas flow duct cleaning for both above-zero and subzero conditions. Removal and installation procedures are laid out step by step, including unpacking, mounting in the helicopter, and the reverse process. The adjustment and test section provides procedures for engine starting, dry and wet motoring runs, shutdown, ground testing after installation, and simultaneous testing of two engines. The storage and shipment chapters detail how to prepare the engine for short and long-term storage, including preservation intervals and humidity control, as well as packaging and transportation requirements.

The later sections break the engine down into major assemblies. Electric wiring covers harness removal and installation, thermocouple connections, and wire termination and soldering. The compressor section includes inspection criteria, blade wear measurement, and replacement of the front attachment flange and feedback lever. The combustion chamber section covers casing inspection and flame tube mount replacement. The turbine assembly, compressor turbine, and free turbine sections provide description and maintenance procedures, including inspection of the free turbine and fourth and fifth support assembly housings, torsion shaft inspection and replacement, and free turbine assembly replacement. The exhaust section covers inspection, replacement, turning of the exhaust stack to alternate positions, and tail pipe clamp replacement. Accessory drives are covered in depth, including the internal and external drive gearboxes, horizontal and vertical flexible shafts, speed governor drives, and carbon face seals. The oil and breather system section includes the oil filter, oil pump block, external drive gearbox oil scavenge pump, cutoff valve, and chip detector, with troubleshooting charts and maintenance practices for each.

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What This Manual Enables You to Do

With this TV3-117 turboshaft engine maintenance manual, you can perform the full range of maintenance and repair tasks on the engine and its systems. This includes diagnosing engine faults using the detailed troubleshooting flowcharts, carrying out scheduled inspections and adjustments, removing and installing the engine and its major assemblies, replacing accessories and components in service, and preparing the engine for storage or shipment. The manual provides the exact procedures, technical requirements, and acceptance standards needed to keep the TV3-117 running correctly.

Correct procedures and specifications matter on a turboshaft engine. The TV3-117 operates in demanding conditions, and incorrect maintenance can lead to reduced performance, damage, or unsafe operation. This manual gives you the manufacturer’s procedures for every task, from setting the oil pressure to measuring compressor blade wear, so you can work with confidence and avoid costly mistakes.

This TV3-117 engine maintenance manual is delivered as an instant PDF download after purchase. No shipping, no waiting, no physical book to carry around. You can access it on any device, search for the section you need, and print the pages you want to take into the workshop. Whether you are maintaining a single engine or running a fleet, this manual is a practical, ready-to-use reference for the TV3-117 turboshaft engine.