United Technologies Pratt and Whitney PT6A-67A Manuals

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United Technologies Pratt and Whitney PT6A-67A Training Manual

United Technologies Pratt and Whitney PT6A-67A Training Manual (270 pages)

Brand: United Technologies | Category: Engine | Size: 20 MB

Table of Contents

Disclosure
2
Preface II
2
Pratt & Whitney Canada
3
Table of Contents
5
Table of Content
6
Introduction
9
Scope
10
Abbreviations
11
Engines Covered in this Manual
12
Pt6 General Notes
13
Major Engine Differences
14
P&Wc Publications
16
Publication Standards
17
Service Bulletin Compliance Codes
19
Chapter 1 - Engine Overview

21
- Pt6A-61 Right Front View
  22
- Pt6A-64 Left Front View
  23
- Pt6A-60 Right Front View
  24
- Pt6A-67 Left View
  25
- Major Assemblies and Flanges
  26
- Features
  28
- General Turboprop Operation
  30
- Turboprop Engine
  31
- Main Engine Bearings
  32
- Bearings
  33
- Stations
  34
- Engine External Components
  36
Chapter 2 - Compressor Section

41
- Compressor Section
  43
- Inertial Separator (Airframe)
  44
- Inertial Separator (Typical)
  45
- Compressor Inlet Case
  46
- Compressor
  48
- Compressor Wash
  50
- Compressor Bleed Valve
  52
- Pre-Swirl System
  56
- Bleed Valve Closing Point
  60
- Gas Generator Case
  64
- Gas Generator Case / Diffuser
  65
- Cold Section Troubleshooting
  66
Chapter 3 - Combustion & Turbine

67
- Hot Section
  68
- Hot Section Area
  69
- Combustion Chamber Liner & Small Exit Duct
  70
- Compressor Turbine Vane Ring
  72
- Compressor Turbine
  74
- Compressor Turbine Trim Balancing
  78
- Compressor Turbine
  79
- Alternate Trim Weights
  80
- Power Turbine Vane Rings
  82
- Power Turbines
  84
- Turbine Wash
  86
- Exhaust Duct & Pt Shaft Housing
  88
- Hot Section Sealing
  91
- Hot Section Troubleshooting
  94
Chapter 4 - Gearboxes

95
- Reduction Gearbox
  96
- Standard Rotation Reduction Gearbox4.4
  98
- Pt6A-66 Reverse Rotation Gearbox
  99
- Accessory Gearbox
  100
- Pin Lock Arrangement
  102
- Accessory Gearbox
  103
Chapter 5 - Oil System

105
Chapter 6 - Secondary Air System

119
- Accessory Gearbox Breather
  122
- Oil Tank Pressurizing Valve
  124
- Turbine Cooling and Airbleed System
  126
- Bearing Compartment Sealing
  128
Chapter 7 - Engine Indicating System

131
- Inter-Turbine Temperature (T5)
  134
- Temperature Indicating System (T5)
  135
- Temperature Indicating System (Itt)
  136
- T5 System Schematic
  137
- Torque System
  138
- Chip Detector
  140
Chapter 8 - Ignition System

143
- Ignition System
  145
Chapter 9 - Performance

147
- Engine Performance Check (Typical)9.3
  149
- Performance Check (Shorts Install)9.4-9.6
  150
- Webectm
  154
- Ectm Sample Plot
  155
- Tbo & Hsi Interval
  156
- Operating Limits
  157
- Rotor Components - Service Life
  165
- Overtorque Chart (Typical)
  166
- Overtemperature Chart (Typical)
  167
- Engine Troubleshooting
  168
- Performance Troubleshooting
  169
Chapter 10 - Fuel System

175
- Power Management
  176
- Fuel System
  178
- Fuel System Schematic
  181
- Fuel Heater
  182
- Fuel Pump
  184
- Fuel Control Unit (Main Flow)
  186
- Fuel Metering Section
  189
- Metering Section (3D Cam)
  190
- Fuel Control System
  191
- Compressor Delivery Air Lines
  192
- P3 Air Filter Element
  193
- Flow Divider with Dump Valve
  194
- Flow Divider with Purge Valve
  196
- Simplex Fuel Nozzles
  199
- Duplex Fuel Nozzles
  201
- Fuel Control Unit Manual Override .10.28
  202
- Fcu Manual Override
  203
- Power Recovery System
  205
- Overtorque Limiter
  206
- Fuel Control Unit Adjustment
  208
- Fuel System 10.34
  208
- Troubleshooting Summary
  210
Chapter 11- Propeller System

211
- Pitch Change Mechanism
  214
- Propeller Governor Governing Mode
  216
- Propeller Governor
  218
- Beta Mode (Forward Operation)
  218
- Propeller Governor
  222
- Beta Mode (Reverse Operation)
  222
- Propeller Feathering
  224
- Nf Governor
  227
- Propeller Overspeed Governor
  228
- Propeller Governor Adjustments
  232
- Primary Blade Angle (Pba) Check
  234
- Primary Blade Angle Chart
  235
- Propeller System Troubleshooting11.26
  236
Chapter 12 - Maintenance Practices.12.1

237
- Periodic Inspection
  238
- Hot Section Inspection
  240
- Borescope Inspection
  242
- Guide Tube Orientation
  243
- Hot Section Tools
  244
- Ct Tip Clearance Measurement
  246
- Hot Section Inspection (Cont'D)
  248
- Ct Blade Sulphidation
  249
- Hot Section Inspection (Cont'D)
  250
Chapter 13 - Rigging

257
- Basic Engine Rigging
  258
- Rear Linkage Rigging
  259
- Woodward Fuel Control Rigging
  260
- Rear Linkage (Woodward)
  261
- Front Linkage Rigging
  262
- Front Linkage
  263
- Fuel Condition Lever
  264
- Fuel & Propeller Lever Rigging
  265
- Post Run up Adjustments
  266
- Twin Engine Rigging Troubleshooting
  268
- Post Run-Up Adjustments (Twin Engine)
  269
- Training Use Only
  269

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