APACHE SERVICE MANUAL

2-12. Servicing Landing Gear Oleo Struts..................................................................... 1C5 2-13. Fuel Screen Bowl. ................................................................................................ 1C9 2-14. Oil Pressure Screen............................................................................................... 1C13 2- l5. Oil Suction Screen ............................................................................................... 1C13 2-16. Lubrication Chart ................................................................................................. 1C17 2-17. Identification of Aircraft Fluid Lines ................................................................... 1C19 2-17. Cherrylock Rivet Removal. .................................................................................. 1D1 2-19. Flareless Tube Fittings ......................................................................................... 1D3 3-1. Fuel Selector Valve Control Cables ..................................................................... 1D11 4-1. Door Lock Installation.......................................................................................... 1E10 4-2. Landing Light Installation, Serial Nos. 23-1 to 23-1163 incl............................... 1E11 4-3. Landing Light Installation, Serial Nos. 23-1164 and up ..................................... 1E12 4-4. Front Spar Attaching Members ............................................................................ 1E17 4-5. Empennage Skin Diagram ................................................................................... 1E18 4-6. Fuselage Skin Diagram......................................................................................... 1E19 4-7. Wing Skin Diagram ............................................................................................. 1E20 4-8. Nacelle Skin Diagram........................................................................................... 1E21 4-9. Surface Scratches Abrasions or Ground in Dirt .................................................. 1F2 4-10. Deep Scratches Shallow Nicks and Small Holes.................................................. 1F3 4-11. Mixing of Epoxy Patching Compound................................................................. 1F3 4-12. Welding Repair Method ....................................................................................... 1F4 4-13. Repairing of Cracks.............................................................................................. 1F4 4-14. Various Repairs..................................................................................................... 1F5 4-15. Repair of Stress Lines........................................................................................... 1F7 4-16. Repair of Impacted Damage................................................................................. 1F7 5-l. Aileron Control Installation.................................................................................. 1F12 5-2. Elevator Control Installation ................................................................................ 1F15 5-3. Rudder Control Installation .................................................................................. 1F16 5-4. Tail Trim Mechanism Installation ....................................................................... 1F20 5-5. Fabricated Aileron Bellcrank Special Tool .......................................................... 1F21 5-6. Aileron Adjustment Points ................................................................................... 1F22 5-7. Checking Neutral Position of Rudder................................................................... 1F24 5-8. Nose Wheel Aligning ........................................................................................... 1G2 1A7 Revised: 9/15/98 PREFACE PIPER APACHE SERVICE MANUAL 5-9. Installing Elevator Trim Drum Cable Locking Pin .............................................. 1G3 5-10. Wrapping Elevator Trim Drum Cable .................................................................. 1G4 5-11. Wrapping Rudder Trim Drum Cable.................................................................... 1G5 5-12. Wrapped Rudder Trim Drum Cable ..................................................................... 1G6 5-13. Installing the Forward Rudder Trim Tab Screw Collar Cotter Pin....................... 1G8 5-14. Flap Alignment..................................................................................................... 1G10 5-15. Adjusting Flap Control Rod End Bearing ............................................................ 1G11 5-16. Correct Method of Installing Rod End Bearings.................................................. 1G13 6-1. Schematic Diagram, Hydraulic System................................................................ 1G17 6-2. Flow Diagram Landing Gear Selector Lever “UP”.............................................. 1G20 6-3. Flow Diagram Landing Gear Selector Lever “DOWN”....................................... 1G21 6-4. Flow Diagram Wing Flap Selector Lever “DOWN” ............................................ 1G22 6-5. Flow Diagram Wing Flap Selector Lever “UP” ................................................... 1G2 6-6. Flow Diagram Both Selector Levers Neutral ....................................................... 1H4 6-7. Hydraulic Powerpak, Exploded View................................................................... 1H11 6-7. Hydraulic Powerpak, Exploded View (cont.) ....................................................... 1H12 6-8. Hydraulic System ................................................................................................. 1I1 7-1. Landing Gear Installation, Serial Nos. 23-1 to 23-1837 incl ............................... 1I7 7-2. Landing Gear Installation, Serial Nos. 23-l838 and up ........................................ 1I8 7-3. Landing Gear Drag Link (Fabricated Type) ......................................................... 1I10 7-4. Landing Gear Drag Link (Forged Type) .............................................................. 1I11 7-5. Oleo Strut, Exploded View of Internal Parts ........................................................ 1I12 7-6. Main Gear Attaching Detail ................................................................................. 1I14 7-7. Checking Wheel Alignment ................................................................................. 1I15 7-8. Adjusting Landing Gear Limit Switches.............................................................. 1I19 7-9. Anti-Retraction Valve........................................................................................... 1I21 7-10. Inspection and Replacement of Cleveland Brake Linings.................................... 1I24 7-11. Bleeding the Brake ............................................................................................... 1J2 7-12. Replacing Cleveland Brake Disc When Installed With Rivets............................. 1J3 7-13. Cleveland Brake Disc Minimum Thickness ......................................................... 1J4 7-14. Adjusting the Goodrich Brake.............................................................................. 1J5 8-1. Hartzell Propeller.................................................................................................. 1J20 8-2. Rear View of Engine Prior to Installation ............................................................ 1J21 8-3. Bottom Right View of Engine .............................................................................. 1J22 8-4. Lord Mount, Exploded View ................................................................................ 1J23 8-5. Installing the Engine ............................................................................................ 1J24 8-6. Engine Lord Mount Locating Pin Diagram.......................................................... 1K1 8-7. Woodward Propeller Governor Adjustment Points .............................................. 1K7 8-8. Removing Spark Plug Frozen to Bushing ............................................................ 1K11 9-1. Main Fuel System................................................................................................. 1K15 9-2. Auxiliary Fuel System.......................................................................................... 1K18 9-3. Parallel Relation of the Fuel Valve Control and Auxiliary Fuel Valve Arm Assemblies in the “OFF” Position .............................................. 1K23 9-4. Checking Recommended Clearance Between Valve Arm and Valve in the”ON” Position.............................................................................. 1K24 LIST OF ILLUSTRATIONS (cont.) Figure No. Subject Grid No. 1A8 Revised: 9/15/98 PREFACE PIPER APACHE SERVICE MANUAL 9-5. Fuel Selector Control Box .................................................................................... 1L3 9-6. Fuel Strainer Bowl................................................................................................ 1L4 10-1. Instrument Panel................................................................................................... 2A15 10-2. Instrument Panel................................................................................................... 2A18 10-3. Dual Vacuum System ........................................................................................... 2A19 11-1. Generator Wiring System Schematic (Single)...................................................... 2B19 11-2. Generator Wiring System Schematic (Dual) ........................................................ 2B20 11-3. Sectional View of Generator................................................................................. 2B24 11-4. Wiring Circuit, Single Regulator.......................................................................... 2C2 11-5. Wiring Circuit, Dual Regulators........................................................................... 2C2 11-6. Current-Voltage Regulator.................................................................................... 2C9 11-7. Use of Riffler File to Clean Contact Points.......................................................... 2C12 11-8. Voltage Regulator Air Gap ................................................................................... 2C12 11-9. Checking Voltage Setting Fixed Resistance Method............................................ 2C13 11-10. Checking Voltage Setting Variable Resistance Method ....................................... 2C13 11-11. Adjusting Voltage Regulator Setting .................................................................... 2C14 11-12. Cutout Relay Air Gap Check and Adjustment ..................................................... 2C16 11-13. Cutout Relay Point Opening Check and Adjustment ........................................... 2C16 11-14. Checking Cutout Relay Closing Voltage.............................................................. 2C17 11-15. Adjustment of Cutout Relay Closing Voltage ...................................................... 2C17 11-16. Checking Current Regulator, Load Method ......................................................... 2C18 11-17. Checking Current Regulator, Jumper Lead Method............................................. 2C18 11-18. Checking and Adjusting Relay Air Gap............................................................... 2C21 11-19. Checking and Adjusting Relay Point Opening..................................................... 2C21 11-20. Checking Relay Closiing Voltage......................................................................... 2C22 11-21. Adjusting Relay Closing Voltage ......................................................................... 2C22 11-22. No-Load Test Hookup .......................................................................................... 2D1 11-23. Lock-Torque Test Hookup.................................................................................... 2D2 11-24. Resistance Test Hookup ....................................................................................... 2D2 11-25. Electrical System Schematic (Basic), Serial Nos. 23-1 to 23-746 incl. .............. 2D21 11-26. Electrical System Schematic (Complete), Serial Nos. 23-1 to 23-746 incl. ........ 2D23 11-27. Electrical System Schematic (Basic), Serial Nos. 23-747 to 23-1688 incl. ........ 2E1 11-28. Electrical System Schematic (Complete), Serial Nos. 23-747 to 23-l683 incl. .. 2E3 11-29. Electrical System Schematic (Basic), Serial Nos. 23-1684 and up ..................... 2E5 11-30. Electrical System Schematic (Complete), Early Models .................................... 2E7 11-31. Electrical System Schematic (Complete), Late Models ...................................... 2E9 13-1. Heating and Ventilating System, Serial Nos. 23-1 to 23-170 incl. ...................... 2E17 13-2. Heating and Ventilating System, Serial Nos. 23-171 to 23-375 incl.................... 2E18 13-3. Heating and Ventilating System, Serial Nos 23-376 to 23-746 incl. ................... 2E19 13-4. Heating and Ventilating System, Serial Nos. 23-747 to 23-1501 incl. ................ 2E20 13-5. Heating and Ventilating System, Serial Nos. 23-1502 and up ............................. 2E21 13-6. South Wind Heater - Model 979-B1..................................................................... 2E23 13-7. Safety Valve ......................................................................................................... 2E24 13-8. Fuel Control Valve................................................................................................ 2E24 13-9. Combustion Air Blower........................................................................................ 2F2 LIST OF ILLUSTRATIONS (cont.) Figure No. Subject Grid No. 1A9 Revised: 9/15/98 PREFACE PIPER APACHE SERVICE MANUAL 13-10. Ventilating Air Fan. .............................................................................................. 2F2 13-11. Heater Wiring Diagram - Model 979-B1 ............................................................. 2F3 13-12. Circuit Analyzer ................................................................................................... 2F6 13-13. Circuit Analyzer Electrical Circuit ...................................................................... 2F6 13-14. Heater Test Stand.................................................................................................. 2F7 13-15. Test Stand Accessories ........................................................................................ 2F7 13-l6. Test Stand Conversion Kit .................................................................................... 2F8 13-17. Circuit Analyzer Installation ............................................................................... 2F8 13-18. Test Stand Installation ......................................................................................... 2F13 13-19. Test Stand Electrical Circuit................................................................................. 2F15 13-20. High Heat Fuel Flow Check ................................................................................. 2F18 13-21. Combustion Air Blower Check ............................................................................ 2F20 13-22. Ventilating Air Blower Check ............................................................................. 2F20 13-23. Exploded Parts View, Model 979-B1 Heater ....................................................... 2F24 13-24. Service Tools (South Wind).................................................................................. 2G7 13-25. Fuel Control Valve (Cutaway View)..................................................................... 2G9 13-26. Flow System (South Wind Heater)....................................................................... 2G10 13-27. Fuel Safety Valve (Cutaway View)....................................................................... 2G11 13-28. Heater Wiring Diagram - Models 940-B and 940-B12 ........................................ 2G15 13-29. Heater Wiring Diagram - Models 940-D, 940-DA, and 940-D12........................ 2G16 13-30. Flame Detector Switch (Cutaway View) ............................................................. 2G23 13-31. Exploded Parts View, Heater Assembly .............................................................. 2H6 13-32. Exploded Parts View, Ventilating Air Blower Assembly .................................... 2H8 13-33. Ventilating Air Blower Motor ............................................................................. 2H11 13-34. Combustion Air Blower Motor............................................................................. 2H12 13-35. Detail of Exhaust Extensions Installation............................................................. 2H17 13-36. Fuel Flow Test Set-Up.......................................................................................... 2H19 13-37. Heater Fuel Filter ................................................................................................. 2H21 13-38. Heater Fuel Valve ................................................................................................. 2H22 LIST OF ILLUSTRATIONS (cont.) Figure No. Subject Grid No. 1A10 Revised: 9/15/98 PREFACE PIPER APACHE SERVICE MANUAL LIST OF TABLES Figure No. Subject Grid No. II-I. Leading Particulars and Principal Dimensions (PA-23-150)................................ 1A20 II-Ia. Leading Particulars and Principal Dimensions (PA-23-160)................................ 1B2 II-II. Recommended Nut Torques (Inch-Pounds) ......................................................... 1B14 II-III. Flare Fitting Torques ............................................................................................ 1B16 II-IIIa. Recommended Lubricating Oils........................................................................... 1C16 II-IV. Thread Lubricants................................................................................................. 1C18 II-V. Maximum Distance Between Supports for Fluid Tubing..................................... 1C18 II-VI Conversion Tables ................................................................................................ 1C21 II-VII. Decimal/ Millimeter Equivalents of Drill Sizes ................................................... 1C24 II-VIII. Hose Clamp Tightening........................................................................................ ID2 III-I. Inspection Report ................................................................................................. 1D13 IV-I. List of Materials (Thermoplastic Repair) ............................................................. 1Fl VI-I. Leading Particulars - Hydraulic Powerpak........................................................... 1G16 VI-III. Hydraulic System Troubleshooting ...................................................................... 1G24 VI-III. Powerpak Troubleshooting................................................................................... 1H7 VI-IV. Special Tools and Test Equipment........................................................................ 1H24 VIII-I. Engine Troubleshooting ....................................................................................... 1J12 IX-I. Fuel System Troubleshooting............................................................................... 1L1 X-I. Vacuum System .................................................................................................... 2A16 X-II. Directional Gyro Indicator ................................................................................... 2A22 X-III. Gyro Horizon Indicator ........................................................................................ 2A23 X-IV. Rate of Climb Indicator ........................................................................................ 2A24 X-V. Altimeter............................................................................................................... 2B1 X-VI. Airspeed Tubes and Indicator............................................................................... 2B3 X-VII. Magnetic Compass ............................................................................................... 2B4 X-VIII. Manifold Pressure Indicator ................................................................................. 2B5 X-IX. Tachometer ........................................................................................................... 2B6 X-X. Engine Oil Pressure Gauge................................................................................... 2B7 X-XI. Fuel Pressure Gauge ............................................................................................. 2B8 X-XII. Turn and Bank Indicator....................................................................................... 2B9 X-XIII. Fuel Quantity Indicators ....................................................................................... 2B10 X-XIV. Oil Temperature Indicators................................................................................... 2B11 X-XV. Carburetor Air Temperature Indicator.................................................................. 2B12 X-XVI. Flap Position Indicator ......................................................................................... 2B13 XI-I. Electrical System Troubleshooting....................................................................... 2D8 XI-II. Electrical Wire Coding ......................................................................................... 2D19 XIII-I. Troubleshooting Analysis Chart, Model 979-B1 ................................................. 2D19 XIII-II. Troubleshooting Chart (Heater, 940 Series) ......................................................... 2H24 SECTION I INTRODUCTION Aerofiche Grid No . 1- 1 General. . . . . . . . . . . . . . . . . . . . . . . . 1.2 . Scope of Manual 1.3 . Description . . . . . . . . . . . . 1.4 . Fuselage . . . . . . . . . 1.5 . Wing . . . . . . . . . . . 1.6 . Empennage . . . . . . . . 1.7 . Flight Controls . . . . . . . 1.8 . Hydraulic System . . . . . . 1.9 . Landing Gear . . . . . . . 1.10. Engines . . . . . . . . . . . . . . . . . . . 1.11 . Propellers . . . . . . . . 1.12 . Fuel System . . . . . . . . 1.13 . instruments . . . . 1.14 . Electronic Equipment 1.15 . Heating and Ventilating System . Issued: 3/ 15/68 PIPER APACHE SERVICE MANUAL SECTION I INTRODUCTION 1-1. GENERAL. This manual contains service and maintenance instructions for the Piper Apache PA-23- 150 and PA -23- 160 designed and manufactured a s a ver - satile aircraft in the personal and business aviation field, by the Piper Aircraft Corporation, Lock Haven, Pennsylvania. 1-2. SCOPE OF MANUAL. Sections I1 and I11 comprise the service part of this manual, whereas Sections 1V through XI11 comprise the maintenance instructions. The service instructions include ground handling, servicing and inspection. The maintenance instructions for each system include troubleshooting, reinoval and installation of components, and corrective maintenance and testing; each major system of the airplane is covered in a separate section. Onlyqualified personnel should perform the operations described in this manual. The description of the airplane included in this section is limited to general information. Section I1 gives leading particulars and principal dimensions, while each major system is described in its appropriate section of the manual. 1-3. DESCRIPTION. The Apache is a four o r five place, twin engine, low wing monoplane of all metal construction with a basic tubular steel fuselage forward section for added strength. The following paragraphs provide descriptions of the major components and systems. 1-4. FUSELAGE. The fuselage, of t r u s s and semi-monocoque type construction, is a combination of four basic units: The nose section, cabin section, tail section and a steel tubular frame, which extends from the tail section, through the cabin section, to the nose wheel. 1-5. WING. The rectangular wing is of all -metal s t r e s s e d skin, full cantilever, low -wing design, consisting of two wing panels bolted together a t the center of the fuselage. The wing tips a r e removable, The ailerons a r e cable and push rod controlled and a r e statically and dynamically balanced. The trailing edge type INTRODUCTION Issued: 3/ 15/68 PIPER APACHE SERVICE MANUAL wing flaps are hydraulically operated. 1-6. EM PENS AGE. The empennage consists of the vertical stabilizer (fin). rudder with trim tab. horizontal stabilizer. and elevator. The control surfaces are dynamically and statically balanced. 1-7 FLIGHT CONTROLS. The flight controls are conventional. consisting of dual control wheels that operate the ailerons and elevator. and dual foot pedals that operate the rudder. The trim for each control is operated by a knob in the cabin ceiling. 1-8. HYDRAULIC SYSTEM. Two separate hydraulic systems are incorporated in the airplane. The main system incorporates a hydraulic Powerpak that operates the landing gear and flaps. The second system operates the airplane's brake system. 1-9. LANDING GEAR. The tricycle landing gear system is hydraulically operated and retractable with doors that partially cover the gear when retracted. The gear struts are air-oil type units. 1-10. ENGINES. The airplane is powered by two Lycoming 0-320 Series engines. The engines are four cylinder, air cooled. horizontally opposed units, utilizing direct drive and a ... wet sump oil system. -1-1 1 . PROPELLERS. Propellers are Hartzell manufactured two blade. full feathering, constant speed units controlled by a governor mounted on each engine. 1 - 12. FUEL SYSTEM. The fuel system consists of two rubber-type cells located in the wings with a total fuel capacity of 72 U.S. gallons. Incorporated in the system are fuel filters. electric auxiliary fuel pumps, enginedriven pumps and a crossfeed system. Optional auxiliary fuel cells are available, increasing the capacity to 108 U.S. gallons. INTRODUCTION Issued: 3 i 15/68 PIPER APACHE SERVICE MANUAL 1- 13. INSTRUMENTS. Provisions for the instrument installation includes panels f o r engine instruments and advance flight instruments, a s well a s space for elec- tronics equipment. The panel is shock mounted to minimize vibration to the in- struments. 1-14. ELECTRONIC EQUIPMENT. Provision for electronic equipment includes various combinations of radio installations and Autopilot. 1 - 15. HEATING AND VENTILATING SYSTEM. Heated a i r for the cabin and de- f r o s t e r is obtained from a South Wind heater installed in the nose section. In con- junction with the heating system is the ventilating system which is used to cool the cabin and t o furnish the heater with outside a i r . IN'TRODUCTION Issued: 3/ 15/68 1A15 Revised: 9/15/98 HANDLING AND SERVICING PIPER APACHE SERVICE MANUAL SECTION II HANDLING AND SERVICING Paragraph Subject Grid No. 2-1. Introduction .......................................................................... 1A17 2-2. Dimensions........................................................................... 1A17 2-3. Station Reference Lines ............................................................. 1A17 2-4. Weight and Balance Data ........................................................... 1B12 2-5. Serial Number Plate ................................................................. 1B12 2-6. Access and Inspection Provisions .................................................. 1B12 2-7. Tools and Test Equipment........................................................... 1B12 2-8. Torque Requirements................................................................ 1B13 2-8a. Torque Wrenches .................................................................... 1B17 2-9. Ground Handling .................................................................... 1B18 2-10. Introduction to Ground Handling ......................................... 1B18 2-11. Jacking ...................................................................... 1B18 2-12. Weighing .................................................................... 1B19 2-13. Leveling ..................................................................... 1B20 2-14. Mooring. .................................................................... 1B21 2-15. Parking ...................................................................... 1B21 2-16. Towing ...................................................................... 1B22 2-17. Taxing ....................................................................... 1B22 2-18. External Power Receptacle ......................................................... 1B22 2-19. Operation of External Power Receptacle ................................. 1B22 2-20. Cleaning .............................................................................. 1B23 2-21. Cleaning Engine Compartment ........................................... 1B23 2-22. Cleaning Landing Gear .................................................... 1B23 2-23. Cleaning Exterior Surfaces ................................................ 1B24 2-24. Cleaning Windshield and Windows....................................... 1B24 2-25. Cleaning Headliner, Side Panels and Seats............................... 1B24 2-26. Cleaning Carpets ........................................................... 1C1 2-27. Servicing ............................................................................. 1C1 2-28. Introduction to Servicing .................................................. 1C1 2-29. Hydraulic System.................................................................... 1C1 2-30. Servicing Hydraulic System............................................... 1C1 2-31. Powerpak Reservoir ................................................................. 1C3 2-32. Filling Powerpak Reservoir (Gravity) .................................... 1C3 2-33. Filling Powerpak Reservoir (Pressure) ................................... 1C3 2-34. Landing Gear System ............................................................... 1C4 2-35. Servicing Landing Gear.................................................... 1C4 2-36. Oleo Struts ........................................................................... 1C4 2-37. Servicing Oleo Struts ...................................................... 1C4 2-38. Adding Fluid to Struts ..................................................... 1C6 2-39. Filling Oleo Struts.......................................................... 1C6 2-40. Inflating Oleo Struts ....................................................... 1C7 1A16 Revised: 9/15/98 HANDLING AND SERVICING PIPER APACHE SERVICE MANUAL Paragraph Subject Grid No. 2-41. Brake System ........................................................................ 1C7 2-42. Servicing Brake System ................................................... 1C7 2-43. Filling Brake Cylinder Reservoir ......................................... 1C7 2-44. Draining Brake System .................................................... 1C7 2-45. Tires ............................................................................... 1C7 2-46. Servicing Tires.............................................................. 1C7 2-47. Power Plant........................................................................... 1C8 2-48. Servicing Power Plant...................................................... 1C8 2-49. Induction Air Filter .................................................................. 1C8 2-50. Removal and Installation of Air Filter .................................... 1C8 2-51. Servicing Air Filter......................................................... 1C8 2-52. Propeller .............................................................................. 1C8 2-53. Servicing Propeller ......................................................... 1C8 2-54. Fuel System .......................................................................... 1C8 2-55. Servicing Fuel System ..................................................... 1C8 2-56. Filling Fuel Cells ........................................................... 1C8 2-57. Draining Moisture from the System ...................................... 1C9 2-58. Draining Fuel System ...................................................... 1C10 2-59. Oxygen System ...................................................................... 1C10 2-60. Servicing the Oxygen System ............................................. 1C10 2-61. Oxygen System Safety Precautions....................................... 1C10 2-62. Filling Oxygen Cylinder ................................................... 1C11 2-62a. Inspection and Overhaul Time Limits................................................... 1C11 2-63. Lubrication ........................................................................... 1C12 2-64. Oil System (Engine) ................................................................. 1C12 2-65. Servicing Oil System....................................................... 1C12 2-66 Draining Oil Pump ......................................................... 1C12 2-67. Filling Oil Pump............................................................ 1C12 2-68. Oil Screen (Pressure)....................................................... 1C13 2-69. Oil Screen (Suction) ....................................................... 1C13 2-69a. Oil Filter (Full Flow)....................................................... 1C14 2-70. Recommendations for Changing Oil ..................................... 1C14 2-71. Lubrication Instructions ............................................................. 1C15 2-72. Application of Oil ................................................................... 1C15 2-73. Application of Grease ............................................................... 1C15 2-74. Lubrication Chart .................................................................... 1C15 2-75. Standards ............................................................................. 1C18 2-76. Identification of Fluid Lines ........................................................ 1C20 2-77. Cherrylock Rivets, Removal ........................................................ 1D1 2-78. Flareless Tube Assemblies .......................................................... 1D2 PIPER APACHE SERVICE MANUAL SECTION I1 HANDLING AND SERVICING 2 - 1. INTRODUCTION. This section contains routine handling and servicing pro - cedures that a r e most frequently encountered. Frequent reference to this s e c - tion will aid the individual by providinginformation such a s the location of various components, ground handling procedures, routine service procedures and lubri - cation. When any system o r component requires service other than the routine procedures a s outlined in this section, refer to the appropriate section for that component. 2 - 2 . DIMENSIONS. The principle airplane dimensions a r e shown in Figures 2 - 1 and 2 -2, and a r e listed in Table I1 -I. 2 -3. STATION REFERENCE LINES. In order to facilitate thelocation of various components of the airplane which require maintenance and servicing, a method utilizing fuselage station (sta.), wing station o r buttock line (BL), and water line (WL) designations is frequently employed in t h s manual. (Refer t o Figures 2 - 3 and 2 - 4 . ). Fuselage stations, buttock lines, and water lines a r e reference points measured in inches in a vertical o r horizontal direction from a given reference line which indicates station locations of structural members of the airplane. On all PA-23 airplanes, station 0 of the fuselage is located at the foremost point of the nose. The BL station 0 of the wing, horizontal stabilizer and elevator, is the center line of the airplane and W L station 0 of the fuselage, vertical stabilizer and rudder is 12 inches below the bottom edge of the forward left side window. NOTE F o r weight and balance purposes, refer to the Airplane Flight Manual. The fuselage station reference lines and the datum lines ( a n ) a r e not the same. The ref- erence datum line o r a r m 0 is 6.25 inches forward of fuselage station 0. HAlVDLING A L W SERVICING Issued: 3/15/68 PIPER APACHE SERVICE MANUAL Figure 2 - 1. T h r e e -View of Apache PA-23-150, PA-23-160, Serial Nos. 2 3 - 1 to 23-1870 i n c l . HANDLING AND SERVICING Issued: 3/15/68 PIPER APACHE SERVICE MANUAL HORIZONTAL REFERENCE unr I Figure 2 - 2 . Three-View of Apache PA-23-160, Serial Nos. 23-1871 and up HANDLING AND SERVICING Issued: 3/ 15/68 P I P E R A P A C H E SERVICE M A N U A L TAB1.E 11-1. LEADING P A R T I C U L A R S A N D P R I N C I P A L D I M E N S I O N S (PA-23-150) Manufacturer M ode1 F A A Type Certificate Rate Horsepower Rated Speed: Full Throttle Performance Cruise (7% Rated) Economy Cruise (65Ci Rated) Fuel Consumption C r u ~ s e : 7 5 5 Rated Power 6 5 5 Rated Power 6 0 5 Rated Power Propeller Dribe Ratio Propeller Shaft Rotation Bore Stroke Displacement Compression Ratio Weight (With Starter and Generator) Dimensions: Height Width Length Oil. S A E Number Oil S u m p Capacity Oil Consumption. Maximum Fuel, Aviation Grade. Specified Minimum Octane Carburetor. Marvel-Schebler Magnetos. Scintilla: Right Left Magneto D r ~ b e .Ratio t o Crankshaft Magneto Drice. Rotation Avco-Lycoming 0-320-A Series 274 150 2700 R P M 2450 R P M 2350 R P M 10.0 gph 8.8 gph 8.2 gph I: I Clockwise 5.125 in. 3.875 in. 319.8 cu. in. 7.00: 1 272 Ibs. 23.12 in. 32.24 in. 29.40 in. See Table 11-111 8 qts. .O12 lbi bhpl hr 801 873 M A 4 S P A SL4N-20 SL4N-21 I : I Clockwise ' W H E N U S I N G FIIEI. OTHER T H A N T H E SPECIFIED M l N l M I I M OCTAXE RATISG. R E F E R TO LYCOMISG S E R V I C E I FTTER SO. LlXSA FOR M O R E I N F O R M A l . I O N A N D RECOMMENDED S E R V I C E PROCEDURES. HANDLING A N D SERVICING Revised: 2.'23! 83 PIPER APACHE SERVICE MANUAL -- - - - - - TABLE 11-1. LEADING PARTICULARS AND PRINCIPAL DIMENSIONS (PA-23-150) (cont.) MODEL PA-23- 150 ENGIKE (cont.) Magneto Timing 25' BTC Magneto Point Clearance .O 1 8 + .006 Spark Plugs (Shielded): AC SR88 Champion REM-40E Spark Plug Gap Setting .O 18 to .022 in. Firing Order 1-3-2-4 Tachometer Drive. Ratio to Crankshaft 0.5: 1 Tachometer Drive. Rotation Clockwise Starter. Delco-Remy. 12V 1 109657 Starter Gear Ratio 2.27: 1 Starter Drive, Ratio to Crankshaft 13.556: 1 Starter Drive. Rotation Counterclockwise Generator. Delco-Remy 1101900 (35 amp) Voltage Regulator. Delco-Remy 1 1 19145 (35 amp) Paralleling Relay. Delco-Remy Generator Drive. Ratio to Crankshaft 1.91:l Generator Drive. Rotation Clockwise Vacuum Pump Dribe. Ratio to Crankshaft 1.30: 1 Vacuum Pump Drive, Rotation Counterclockwise Propeller Governor Drive. Ratio to Crankshaft .866: 1 Propeller Governor Drive, Rotation Counterclockwise Fuel Pump Drive Plunger Type I HANDLING AND SERVICING lA21 Revised: 2 23 183 P I P E R A P A C H E SERVICE M A N U A L TABLE 11-1. LEADING P A R T I C U L A R S A N D P R I K C I P A L D I M E N S I O N S (PA-23-150) (cont.) M O D E L PA-23- 150 P R O P E L L E R Manufacturer Type ( 2 Blades) H u b Model Blade Model Diameter Diameter. Minimum Blade Angle. Low Pitch? Blade Angle. High Pitch' Governor Control Governor Model Hartzell Constant Speed. Full Feathering HC-82XG-2 7636D 76.0 in. 74.5 in. 10.0" 80.5O (Feathered) W oodward 2 10080 Inboard ( M a i n ) Fuel Cells T w o Capacity (Each) 36 U.S. Gal. Outboard (Auxiliary) Fuel Cells T w o Capacity (Each) 18 U.S. Gal. Total Capacity (With Auxiliary Cells) 108 U.S. Gal. L A N D I N G G E A R Type Hydraulically Retractable Shock Strut Type Air-Oil Fluid Required (Struts. Hydraulic System a n d Brakes) MIL-H-5606 Strut Extension (Static Load) 3 in. Wheel Tread (Width from each tire center) l l ft., 4 in. Wheel Base 7 ft.. 6 in. Nose Wheel Turning 15" + l o Right, 15" l o Left Turning Radius: Nose Wheel 28.3 ft. HANDLING A N D S E R V l C l N G Revised: 2i 2 3 / 8 3 P I P E R A P A C H E SERVICE MANUAL TABLE 11-1. LEADING P A R T I C U L A R S A N D P R I N C I P A L D I M E N S I O N S (PA-23-150) (cont.) M O D E L PA-23- 150 L A T D I N G GEAR (cont.) Wheel. Sose: Cle\ eland C-3850H or 38501 Wheel. Main: Goodrich G-3-787 or G-3-880 C l e ~eland 3060 o r 3080A Brake Type: Goodrich (3-2-662 Cleveland 3000-500 Tire. Nose 6:00 x 6. 4 ply rating Tire. Main 7:00 x 6, 6 ply rating Tire Pressure. Nose 27 Ibs. Tire Pressure. Main 35 Ibs. OVERALL- Gross Weight 3500 Ibs. Wing Loading 17.2 Ibs.;sq. ft. Length 27 ft.. 4.3 in. Width ( S p a n ) 37 ft.. 1.75 in. Height (Static Ground Line) 9 ft.. 6.0 in. Height. Propeller Hub. Thrust Line Level 47.37 in. Clearance. Propeller Tip. Thrust Line Level 9.4 in. F U S E L A G E Length ( Including Tail C o n e Fairing) 27 ft.. 1.9 in. Length (Without Tail C o n e Fairing) 24 ft.. 3.4 in. Width (Without Stabilizer) 50.87 in. Height (Without Vertical Stabilizer) 60.75 in. HANDLING A N D SERVICING Revised: 2 i 23/83 PIPER A P A C H E SERVICE MANUAL -aTABLE 11-1. LEADING PARTICULARS A N D P R I N C I P A L DIMENSIONS (PA-23-150) (cont.) M O D E L PA-23- 150 W I N G S Airfoil Section ar Root USA 35B Modified Span (Width) 37 ft.. 1.75 in. Chord 67 in. Dihedral (Leading Edge) 5 degrees Incidence (Wing Station 27.0) 0 degrees Twist I degree in 70 in. max. 2 degrees W ing (Each): Distance (End of Spar to Wing Tip) 18 ft.. 6.87 in. Distance (End of Spar to Outboard Rib) 16 ft. Distance (Leading Edge to Trailing Edge) 37.86 in. Aileron: Length 6 ft.. 8.5 in. Chord 15.43 in. Flap: Length 7 ft., 2.56 in. Chord 13.88 in. E M P E N N A G E Chord. Horizontal Surfaces 54.0 in. Chord. Vertical Surfaces 71.12 in. Stabilizer: S p a n (Overall) 12 ft. Dimension (Leading Edge to Trailing Edge) 30 in. l ncidence 1 degree Elevator (Each): Dimension (Inboard Edge t o Tip) 66.69 in. Chord (Maximum) 23.69 in. Fin: Height (End of Spar to Tip) 58.37 in. Dimension (Leading Edge to Trailing Edge) 41.31 in. Rudder: Dimension (Bottom Edge to Tip) 60.37 in. Chord (Maximum) 32.5 in. I HANDLING A N D SERVICING Revised: 2 23/83 1A24 PIPER APACHE SERVICE MANUAL TABLE 11-1. LEADING PARTICULARS AND PRINCIPAL DIMENSIONS (PA-23-150) (cont.) Wings (Total Area - Aileron and Flaps) 207.56 sq. f't. Aileron Area (Each) 16.77 sq. ft. Flap Area (Each) Ele\.ator Area Hori7ontal Stabili7er Area Rudder Area Vertical Fin Area 16.68 sq. f t . 16.59 sq. f t . 23.60 sq. f t . 9.0 sq. ft. 10.58 sq. f t . Aileron Elevator Rudder Rudder Trim Tab Flaps 30" + 2" Up. 15" 2 2 " Down 20" t 2" Up. 15" a 2" D m n III 30" ;t 2" Left. 30" ;t 2" Rizht 25" +2" -0" Left. 25" +2" -0" Rizht 50" t 2" Down I -.:. p:.::rRudder Rudder Trim 35 Ibs. L 2 0 5 20 Ibs. ;t 2 0 5 30 Ibs. + 2 0 5 10 Ibs. 2 2 0 5 HANDLING AND SERVICING Revised: 2: 23: 8 3 P I P E R A P A C H E SERVICE MANUAL T A B L E Il-IA. LEADITVG P A R T I C U L A R S A N D PRllVClPAL D I M E N S I O N S (PA-23-160) Manufacturer M ode1 FAA Type Certificate Rate Horsepower Rated Speed: Full Throttle Performance Cruise ( 7 5 5 Rated) Economy Cruise ( 6 5 q Rated) Fuel Consumption Cruise: 7 5 5 Rated Power 6 5 5 Rated Power 60% Rated Power Propeller Drive Ratio Propeller Shaft Rotation Bore Stroke Displacement Compression Ratio Weight (With Starter and Generator) Dimensions: Height Width Length Oil. S A E Number Oil S u m p Capacity Oil Consumption. Maximum Fuel. Aviation Grade. Specified Minimum Octane Carburetor. Marvel-Schebler Magnetos. Scintilla: Right Left Avco-Lycoming 0-320-B Series 274 1 60 2700 R P M 2450 R P M 2350 R P M 10.0 gph 8.8 gph Clockwise 5.125 in. 3.875 in. 319.8 cu. in. 8.5: 1 278 Ibs. 23.12 in. 32.24 in. 29.56 in. See Table 11-111 8 qts. .012 Ib/ bhp! hr 91 !96 MA-4SPA SL4N-20 SL4N-21 I : I Clockwise HANDLING A N D SERVICING Revised: 21 23 I 83 PIPER APACHE SERVICE MANUAL TABLE 11-IA LEADING PARTICULARS AND PRINCIPAL DIMENSIONS (PA-23-160) (con[.) Magneto Timing Magneto Point Clearance Spark Plugs (Shielded): AC Champion Spark Plug Gap Setting Firing Order Tachometer Drive. Ratio to Crankshaft Tachometer Dribe. Rotation Starter, Delco-Remy. 12V Starter Gear Ratio Starter Drive. Ratio to Crankshaft Starter Drive. Rotation Generator. Delco-Remy lvoltage Regulator. Delco-Remy 25" BTC .O 18 + .006 A. SR88 REM40E .O 15 to .0 18 in. or .018 to .022 in. 1-3-2-4 0.5: 1 Clockwise 1109673 or 1109689 2.27: 1 13.556: 1 Counterclockwise 1101900 (35 amp) 1101915 (50 amp) I 1 19 145 (35 amp) I 1 19246 (50 amp) 1 1 16887 (50 amp) 1.91:l Clockwise 1.30:1 Counterclockwise Paralleling Relay. Delco-Remy Generator Drive, Ratio to Crankshaft Generator Drive. Rotation Vacuum Pump Drive. Ratio to Crankshaft Vacuum Pump Drive. Rotation Propeller Governor Drive. Ratio to Crankshaft Prooeller Governor Drive. Rotation .866: 1 Counterclockwise 'REFER TO I . Y C O M I I G SERVICE IhiSTRUCl.IONS N O . 1042. H A N D L I N G A N D SERVICING Revised: 2 23 83 P I P E R A P A C H E SERVICE M A N U A L TABLE 11-IA. L E A D I N G P A R T I C U L A R S A N D P R I N C I P A L D I M E N S I O N S (PA-23-1 60) (cont.)@ M O D E L P A-23- 160 P R O P E L L E R Manufacturer Hartzell Type ( 2 Blades) Constant Speed, Full Feathering H u b Model HC-82XG. HC-82XL o r HC-A2XL Blade Model 76360-4 Diameter 72.0 in. Diameter. Minimum 70.0 in. Blade Angle. Low Pitch? 1 2.0" Blade Angle. High Pitch2 80.0" (Feathered) Governor Control Woodward o r Hartzell Governor Model 210080 B-4-1 FUEL SYSTEM Inboard (Main) Fuel Cells T w o Capacity (Each) 36 U.S. Gal. Outboard (Auxiliary) Fuel Cells T w o Capacity (Each) 18 U.S. Gal. Total Capacity (With Auxiliary Cells) 108 U.S. Gal. LANDING G E A R T Ype Hydraulically Retractable Shock S t r u t Type Air-Oil Fluid Required (Struts, Hydraulic System and Brakes) M 1L-H-5606 Strut Extension (Static Load) 3 in. Wheel Tread (Width from each tire center) l l ft., 4 in. Wheel Base 7 ft., 6 in. Nose Wheel Turning 15" L 1" Right. 15" l o Left Turning Radius: Nose Wheel 28.3 ft. Wing T i p 35.8 ft. ' M E 4 S l ) R E D AT 30 I Y C H R A D I I ' S HANDLING A N D SERVICING Revised: 2 / 2 3 , 8 3 PIPER APACHE SERVICE MANUAL TABLE Il-IA. L E A D l h G PARTICULARS AND PRINCIPAL DIMEXSIONS (PA-23-160) (cont.) LANDING GEAR (cont.) Wheel. Nose: Cleveland Wheel. Main: Goodrich Cleveland Brake Type: Goodrich Cleveland Tire. Nose Tire. Main Tire Pressure. Nose Tire Pressure. Main - 3000-500 6:00 x 6. 4 ply rating 7:00 x 6. 6 ply rating 27 Ibs. 35 Ibs. OVERALL 3800 Ibs. 18.6 Ibs./sq. ft. 27 ft., 4.3 in. 37 ft.. 1.75 in. 9 ft.. 6.0 in. 47.37 in. 1 1.4 in. Length (Including Tail Cone Fairing) Length (Without Tail Cone Fairing) Width (Without Stabilizer) 27 ft.. 1.9 in. 24 ft., 3.4 in. 50.87 in. HANDLING AND SERVICING Revised: 21 231 83 P I P E R A P A C H E SERVICE M A N U A L TABLE Il-IA. LEADING PARTICULARS A N D P R I N C I P A L DIMENSIONS (PA-23-160) (cont.) Airfoil Section at Root . pan (Width) hord ihedral (Leading Edge) Incidence (Wing Station 27.0) wist W i n s (Each): iDistance (End of S p a r to Wing Tip) Distance (End of Spar t o Outboard Rib) Distance (Leading Edge to Trailing, Edge) ' ~ i l e r o n : Length Chord Flap: Length Chord USA 35B Modified 37 ft.. 1.75 in. 67 in. 5 degrees 0 degrees I degree in 70 in. max. 2 degrees 18 ft., 6.87 in. 16 ft. 37.86 in. 6 ft., 8.5 in. 15.43 in. 7 ft., 2.56 in. 13.88 in. E M P E N N A G E Chord. Horizontal Surfaces 54.0 in. Chord. Vertical Surfaces 71.12 in. Stabilizer: Span (Overall) 12 ft. Dimension (Leading Edge t o Trailing Edge) 30 in. Incidence 1 degree Elevator (Each): Dimension (Inboard Edge t o Tip) 66.69 in. Chord (Maximum) 23.69 in. Fin: Height (End of S p a r t o Tip) 58.37 in. Dimension (Leading Edge t o Trailing Edge) 31.31 in. Rudder: Dimension (Bottom Edge t o Tip) 60.37 in. Chord (Maximum) 32.5 in. HANDLING AND SERVICING Revised: 2; 231 83 PIPER APACHE SERVICE MANUAL TABLE 11-1A. LEADING PARTICULARS AND PRINCIPAL DIMENSIONS (PA-23-160) (cont.) MODEL PA-23- 160 AREAS Wings (Total Area - Aileron and Flaps) Aileron Area (Each) Flap Area (Each) Elevator Area Horizontal Stabilizer Area Rudder Area Vertical Fin Area 207.56 sq. f t . 16.77 sq. ft. 16.68 sq. ft. 16.59 sq. f t . 23.60 sq. ft. 9.0 sq. ft. 10.58 sq. f t . Aileron Elevator Rudder Rudder Trim Tab Flaps 30" i 2" Up. 15" + 2" Down 20" f 2" Up. 15" + 2" Down 30" 2 2" Left. 30" + 2" Right 25" +2" -0" Left. 25" +2" -0" Right 50" +, 2" Down -,- HANDLING AND SERVlCII\iG Revised: 21 23 ! 83 CABLE TENSIONS " Aileron 35 Ibs. 2 20% Elevator 20 Ibs. +. 20% Rudder 30 Ibs. L 20% Rudder Trim 10 Ibs. 2 20% 1B8 HANDLING AND SERVICING Issued 3/15/68 PIPER APACHE SERVICE MANUAL Figure 2-3. Station Reference Lines PIPER A P A C H E SERVICE M A N U A L Figure 2-4. Station Reference Lines HANDLING A N D SERVICING Issued: 3 ' 1 5 ' 6 8 PIPER APACHE SERVICE MANUAL Figure 2 -5. Access and Inspection Provisions h HANDLING AND SERVICING Issued: 3/15/68 a ? 19 20 n 1. LANDING L I G H T 9. M A I N SPAR. CONTROL C A B L E S 15. RUDDER C A B L E 2. RUDDER HORN 10. B A T T E R Y 16. M A I N SPAR 3. HEATER, E L E C T R O N I C S 11. RUDDER PEDALS. CONTROL CABLES. 17. RUDDER TORQUE TUBE 4. S T A B I L I Z E R A T T A C H M E N T H Y D R A U L I C L I N E S 18. S T A B I L I Z E R ATTACHMENT 5. BRAKE RESERVOIR 12. RUDDER C A B L E 19. RUDDER C A B L E 6. POWERPAK FILLER 13. STABILATOR CABLES 20. FLAP SENDER 7. F I N A T T A C H M E N T 14. S T A B I L A T O R C A B L E S 21. RUDDER TORQUE T U B E 8 . BAOGAGE AREA PIPER APACHE SERVICE MANUAL I. WlNG T I P 2. F U E L F I L L E R 3. F U E L C E L L 4 . F U E L L l N E 5 . A I L E R O N B E L L C R A N K 8. F U E L F I L L E R 7 . A I L E R O N C A B L E S 8. F U E L C E L L , F U E L QUANTITY SENDER 9. L A N D I N G OEAR 10. F U E L F I L T E R 11. L I N E F I T T I N G S , WIRING, W l N G A T T A C H M E N T S , CONTROL C A B L E S 12. P R O P E L L E R 13. E N O I N E AND ACCESSORIES 14. ENOINE AND ACCESSORIES 15. O I L F I L L E R L l N E F I T T I N G S . W I R I N G , W l N G A T T A C H M E N T S , CONTROL C A B L E S F U E L F I L T E R L A N D I N G GEAR F U E L C E L L . F U E L Q U A N T I T Y SENDER A I L E R O N C A B L E S F U E L F I L L E R A I L E R O N B E L L C R A N K F U E L L l N E F U E L C E L L F U E L F I L L E R W l N G T I P P R O P E L L E R E N O I N E E N G I N E O I L F I L L E R I Figure 2 -6. Access and Inspection Provisions HANDLING AND SERVICING Issued: 3/ 15/68 P I P E R A P A C H E SERVICE M A N U A L 2-4. W E I G H T A N D BALANCE DATA. When figuring various weight and balance computations. th@weight and empty weight center of gravity of the airplane may be found in the Weight and Balance Form of the Airplane Flight Manual. 2-5. S E R I A L $ U M B E R PLATE. The Serial Number Plate o n the PA-23 Apache is located o n the top ofthe tail cone. underneath the rudder. Airplane Serial Numbers will be used in this manual where servicing differences occur. a n d should be used when contacting the factory on Service or Warrantv matters. 2-6. ACCESS A N D INSPECTION PROVISIONS. The access and inspection provisions for the airplane are shown in Figures 2-5 and 2-6. The component to be serviced o r inspected through each opening is assigned an index number t o identify it in the illustration. All access plates and panels are secured by either metal fasteners or screws. T o enter the aft section of the fuselage. remove the rear baggage compartment upholstery panel by removing the attachment screws. CAUTION Before entering the aft section of the fuselage. be sure the airplane is supported at the tail skid. 2-7. T O O L S A N D T E S T E Q U I P M E N T . Because of the simplicity and easy accessibility of components. few soecial tools outside normal s h o ~tools will be reauired. Tools that are reauired mav be fabricated from - r dimensions given in the section that pertains t o a particular component o r are listed in the back of the PA- Parts Catalog. 2-8. T O R Q U E R E Q U I R E M E N T S . T h e importance of correct application cannot be overemphasized. Undertorque can result in unnecessary wear of nuts and bolts as well as the parts they are holding together. When insufficient pressures are applied. uneven loads will be transmitted throughout the assembly which may result in excessive wear o r premature failure due t o fatigue. Overtorque can be equally damaging because of failure of a bolt o r nut from overstressing the thread areas. T h e following procedures should be followed to assure that the correct torque is applied (refer t o Table 11-11): a . Torque (self-locking fasteners) - Add the friction torque from Chart A for sizes 8 through 7 16 t o the recommended torque from Chart B t o get the final torque. This would be the actual reading on the torque wrench. b. Torque (castellated a n d non-self-locking nuts) - Use only the torque given in Chart B. Unless otherwise specified. when castellated nuts are used with a cotter pin on moving joints. d o not torque the nut. Turn the nut o n t o the bolt until proper grip is established a n d alignment with the cotter pin hole is achieved. Then install the cotter pin. HANDLING AND SERVICING Revised: 2 23 83 P I P E R A P A C H E SERVICE MANUAL G E N E R A L R E Q U I R E M E N T S : a. Calibrate the torque wrench periodically t o assure accuracy: recheck frequently. b. .4scertain that the bolt and nut threads are clean and dry (unless ot herwise specified by the manu- facturer). I f t he bolt or nut is specified to be lubricated prior to tightening. the torque range should be reduced 50 percent. c. Use a bolt length long enough t o prevent bearing loads on the threads. T h e complete chamfer o r end radius of the bolt or screw must extend through the nut. d. Unique torques specified in the text of this manual supersede the torques given in Charts A and B. e. Refer to the latest revision of Lycoming S S P 1776 for torques on parts used on Lycoming engines. f. A maximum of two AN960 washers may be added under the bolt heads o r nuts t o correct for variations in material thickness within the tolerances permitted. 9. Limitations of the use of self-locking nuts. bolts and screws including fasteners with non-metallic inserts are as follows: I . Fasteners incorporating self-locking de\ices shall not be reused if they can be run up uhing o n & fingers. They may be reused if hand tools are required to run them up. providing there is no obvious damage to the self-locking device prior t o installation. 2. Bolts 5 16 inch diameter and over with cotter pin holes may be used with self-locking nuts. Nuts with non-metallic locking de\ ices may be used in this application only if the bolts are free from burrs around the cotter pin hole. 3. D o not use self-locking nuts at joints which subject either the nut o r the bolt to rotation. 4. Never t a p o r rethread self-locking fasteners. D o not use nuts. bolts or screws with damaged threads o r rough ends. T H I S S P A C E INTENTIONALI-Y L E F T BLANK HANDLING A N D SERVICING Revised: 2 23;83 1B14 HANDLING AND SERVICING Revised: 2/23/83 PIPER APACHE SERVICE MANUAL TABLE II-II. RECOMMENDED NUT TORQUES PIPER APACHE SERVICE MANUAL • 7-..2RI.E II-11. RECOMMENDED % U T TORQUES (cont.) HANDLING , 4 3 D SERVICI\G Relised: 7 23 8.7 BOLTS Steel Tension AN 3 thru AN 20 AN 42 thru AN 49 AN 73 thru AN 81 AN 173 thru AN 186 MS 20033 thru MS 20046 MS 20073 MS 20074 AN 509 NK9 MS 24694 AN 525 NK525 MS 27039 NUTS Steel Tension AN 310 AN 315 AN 363 AN 365 NAS 1021 MS 17825 MS 21045 MS 20365 MS 20500 NAS 679 BOLTS Steel Tension MS 20004 th ru MS 20024 NAS 144 thru NAS 158 NAS 333 thru NAS 340 NAS 583 thru NAS 590 NAS 624 thru NAS 644 NAS 1303 thru NAS 1320 NAS 172 NAS 174 Steel Shear AN 320 AN 364 NAS 1022 MS 17826 MS 20364 FINE THREAD SERIES NAS 517 BOLTS Aluminum AN 3DD thru AN ZODD AN 173DD thru AN 186DD AN 509DD AN 525D MS 270390 MS 24694DD NUTS Nut-bolt size 8 -36 10 -32 114- 28 5116-24 318- 24 7/16-20 112- 20 9/16-18 5/8-18 3\4-16 7/8-14 1 -14 1-118-12 1-11612 Steel shear bolt NAS 464 Alum. Tension AN 365D AN 3100 NAS 10210 Alum. Shear AN 320D A N 364D NAS 10220 NUTS Torque Limits in-lbs Steel Tension AN 310 AN 315 AN 363 AN 365 MS 17825 MS 20365 MS 21045 NAS 1021 NAS 679 NAS 1291 Min. 12 20 50 100 160 450 480 800 1,100 2,300 2,500 3.700 5.000 9,000 Steel Shear AN 320 AN 364 NAS 1022 MS 17826 MS 20364 Max. 15 25 70 140 190 500 690 1.000 1,300 2.500 3.000 4.500 7,000 11.000 Torque Limits in-lbs Min. Max. 7 12 30 60 95 270 290 480 660 . 1.300 1,500 2.200 3,000 5.400 Torque Limits in-lbs 9 15 40 85 110 300 410 600 780 1,500 1,800 3.300 4,200 6.600 Min. 25 80 120 200 520 770 1.100 1,250 2,650 3.550 4.500 6,000 11,000 Torque Limits in-lbs Max. 30 100 145 250 630 950 1,300 1,550 3.200 4.350 5.500 7,300 13,400 Min. 15 50 70 120 300 450 650 750 1,600 2.100 2,700 3,600 6,600 Max. 20 60 90 150 400 550 800 950 1,900 2,690 3,300 4,400 8.000 Torque Limits in-lbs Min. Max. 5 10 30 40 75 180 280 380 550 950 1,250 1,600 2.100 3.900 Torque Limits in-lbs Min. Max. 10 15 45 65 110 280 410 580 670 1,250 1,900. 2.400 3,200 5.600 3 5 15 25 45 110 160 230 270 560 750 950 1,250 2,300 6 10 30 40 70 170 260 360 420 880 1,200 1,500 2,000 3,650 PIPER APACHE SERVICE MANUAL I NOTE I For more details on torquing. refer to FAA Manual AC43.13- IA. CAUTION Do not overtorque fittings. NOTE When flared fittings are being installed, ascertain that the male threads are properly lubricated. Torque the fittings in accordance with Table 11-111. TABLE 11-Ill. FLARE FITTING TORQUES HANDLING AND SERVICING Revised: 21'23 83 TORQUE - INCH-POUND TUBING OD INCHES 1 8 3 16 1 4 5 16 3 8 I '2 5 18 314 I 1 - 1 4 1 - 1 2 1-3 4 2 ALUMINUM - ALLOY TUBING FLARE - AND 10061 OR AND 10078 MINIMUM --- - - A 40 60 75 150 200 300 500 600 600 --- --- MAXIMUM --- --- 65 80 125 250 350 500 700 900 900 - - A - - - STEEL TUBING FLARE AND 10061 HOSE END FITTING AND HOSE ASSEMBLIES MINIMUM --- 90 135 180 270 450 650 900 1200 --- --- --- --- MINIMUM - - / 70 70 85 100 210 300 500 700 --- --- --a - - / MAXIMUM --- 100 150 200 300 500 700 1000 1400 --- - - - --- --- MAXIMUM - - - 1 00 120 180 250 4 20 480 850 1150 --- --- --- ---