Piper PA-34-200T Seneca II User manual

SENECAII
SERVICEMANUAL
CARD
1OF3
PA-34-200T
SENECA
II
PIPERAIRCRAFTCORPORATION
(PART
NUMBER
761590) 1A1
Island Enterprises

PIPER SENECA II SERVICE MANUAL
AEROFICHE EXPLANATION AND REVISION STATUS
Servicemanual
informationincorporated
in thissetof Aerofiche
cardsis arranged
in accordancewiththe
generalspecificationsof Aeroficheadoptedby the GeneralAviationManufacturer'sAssociation.Information
compiledin this Aeroficheservicemanualis keptcurrentbyrevisionsdistributedperiodically.Theserevisions
supersede
all previousrevisions,are completeAerofiche
cardreplacements,andsupersedeAerofiche
cardsof
the samenumberintheset.
Identificationofrevisedmaterial:
Revisedtextandillustrationsareindicatedby ablackverticallinealongtheleft-handmarginofthe frame,
oppositerevisedoraddedmaterial.Revision
linesindicateonlycurrentrevisionswithchanges
andadditionsto
existingtext andillustrations.Changesin capitalization,spelling,
punctuation,indexing,physicallocation
of
the material,orcompletepageadditionsarenotidentifiedbyrevisionlines.
InterimRevisions*
If thereis morethan oneinterimrevisionon a page,the mostrecentwill have the lettersIR next to the
revisionline.Anyotherrevisionlinesmayreflecta previouspermanentrevisionorprevious
interimrevision.
ChecktheRevisionStatus
pageforrevisionhistory.
Revisions to Service Manual 761 590 issued October 11, 1979are as follows:
Effectivity Publication Date Aerofiche Card Effectivity
ORG791011 October 11, 1979 1, 2 and 3
PR800810 August 10, 1980 1, 2 and 3
PR810316 March 16, 1981 1, 2 and 3
PR821112 November 12, 1982 1, 2 and 3
PR831208 December 8, 1983 1,2 and 3
IR860730 July 30, 1986 1
IR860920 September20, 1986 1
IR870506 June 12, 1987 1
IR960624 June 24, 1996 1
IR970205* February 5, 1997 1
Thispublicationcontainsmaterialrevisedas of December8,
1983(with five interim revisions effective July 30, 1986,
September 20, 1986, May 6, 1987, June 24, 1996, and
February5, 1997).
* INTERIM CHANGE
Revisions appear in Sections III,V, and VII of card 1.
There are no other changes in this service manual.
Please discard your current card 1 and replace it
with this revised one. DO NOT DISCARD CARDS 2
or 3.
1A2
Island Enterprises

TABLEOF CONTENTS
AEROFICHE CARD NO. 1GRID NO.
I
II
IV
V
VI
VII
INTRODUCTION ................................... 1A13
HANDLING AND SERVICING ...................... 1A16
INSPECTION ....................................... 1C23
STRUCTURES
...................................... 1D12
SURFACE CONTROLS ............................. 1F21
HYDRAULIC SYSTEM .............................. 113
LANDING GEAR AND BRAKE SYSTEM ............ 1J5
AEROFICHE CARD NO. 2
VIII
IX
X
XI
XII
XIII
POWERPLANT ...............................
FUELSYSTEM ...............................
INSTRUMENTS ..............................
ELECTRICALSYSTEM .......................
ELECTRONICS...............................
HEATING AND VENTILATING SYSTEM ......
AEROFICHE CARD NO. 3
..... .2A9
.2D4
.2E8
2F16
2120
.2J6
.3A6
XIV ACCESSORIES AND UTILITIES ...................
1A3
Island Enterprises

1A4
INTENTIONALLY
LEFTBLANK
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS
Figure Aerofiche
Grid No.
2-1. Three View ............................................................... IA19
2-2. Station References .......................................................... IA20
2-2A. Torque Wrench Formula ................................................... IB 1
2-3. Access Plates and Panels .................................................... 1B5
2-4. Jacking ................................................................... B7
2-5. Weighing ................................................................. 1B8
2-6. Leveling Airplane .......................................................... 1B9
2-7. Turning Distance .......................................................... IB14
2-8. Service Points ............................................................. B
16
2-9. Lubrication Chart (Landing Gear, Main) ..................................... IC2
2-10. Lubrication Chart (Landing Gear, Nose) ....................................... IC3
2-11. Lubrication Chart (Control System) .......................................... IC4
2-12. Lubrication Chart (Control System) (cont.) ................................... 1C5
2-13. Lubrication Chart (Power Plant and Propeller) ................................ IC6
2-14. Lubrication Chart (Cabin Door, Baggage Doors and Seats) ..................... 1C7
4-1. Cherrylock Rivet Removal ..... .......................................... ID15
4-1a. Hose/Line Markings ....................................................... ID16
4-1b. Flareless Tube Fittings ..................................................... ID 18
4-1c. Aileron and Flap Installation ................................................ ID22
4-2. Wing Installation .......................................................... 1E
4-3. Empennage Group .................................... ... .................. IE7
4-4. Method of Securing Control Cables .......................................... IE11
4-5. Windshield Installation ..................................................... E13
4-6. Side Window Installation (Typical) .......................................... IE14
4-7. Rear Door Window Replacement ............................................ IE16
4-7a. Snubber Installation ....................................................... IE18
4-8. Seat Back Lock ........................................................... IE23
4-9. Skin Materials and Thickness ............................................... IF3
4-10. Surfaces Scratches, Abrasions or Ground-in-Dirt .............................. IF8
4-11. Deep Scratches, Shallow Nicks and Small Holes ............................... IF8
4-12. Mixing of Epoxy Patching Compound ....................................... 1F9
4-13. Welding Repair Method .................................................... 1F9
4-14. Repairing of Cracks ..................................................... . IF10
4-15. Various Repairs ........................................................... IF11
4-16. Repair of Stress Lines ...................................................... 1F12
4-17. Repair of Impacted Damage ................................................ IF12
4-18. Control Surface Balance Tool ................... ............................ 1F16
4-19. Aileron and Rudder Balance Configuration ................................... IF18
4-20. Stabilator Balance Configurations ........................................... IF19
5-1. Control Column Assembly .................................................. IG1
5-1a. Correct Method of Installing Rod End Bearing ................................ IG4
5-2. Aileron Controls .......................................................... IG5
Revised: 3/16/81 1A5
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS (cont.)
Figure Aerofiche
Grid No.
5-3. Bellcrank Rigging Tool ..................................................... 1G9
5-4. Aileron Rigging Tool ...................................................... IG10
5-5. Stabilator and Stabilator Trim Controls ...................................... 1G13
5-6. Stabilator Rigging Tool .................................................... IG16
5-7. Methods of Securing Trim Cables ........................................... IG16
5-8. Rudder and Brake Pedal Assembly ......................... ................. 1G22
5-9. Rudder and Rudder Trim Controls .......................................... H I
5-10. Rudder Rigging Tool ...................................................... 1H3
5-11. Clamping Rudder Pedals ................................................... 1H3
5-12. Rudder and Stabilator Travel Adjustment .................................... IH4
5-13. Flap Controls ............................................................. 1H9
5-14. Flap Step Adjustment .............. ........................................ 1H II
5-15. Flap Rigging Tool ......................................................... 1HI1
5-16. Fabricated Aileron Bellcrank Rigging Tool ........................... ....... 1H 13
5-17. Fabricated Aileron and Flap Rigging Tool .................................... 1H
14
5-18. Fabricated Stabilator Rigging Tool .......................................... H 15
5-19. Fabricated Rudder Rigging Tool ............................................ H 16
6-1. Schematic Diagram of Hydraulic System ..................... ................ 117
6-2. Hydraulic System Installation ............................................... 118
6-3. Hydraulic Pump/Reservoir, Exploded View ................................... 1111
6-4. Test and Adjustments of Hydraulic Pump .................................... 1114
6-5. Pump Mounting ....................................................... .... 1115
6-6. Free-Fall Valve Assembly ................................................... 1115
6-7. Gear Actuating Cylinder .................................................... 1116
6-7a. Installation of T-Rings .................................................... .. 1117
6-8. End Gland Locking Device ................................................. 1118
6-9. Nose Gear Actuating Cylinder Installation .................................... 1120
7-1. Nose Gear Oleo Strut Assembly .................... ......................... 1J9
7-1a. Nose Gear Service Tolerances ............................................... 1J1
7-2. Nose Gear Installation ..................................................... IJ16
7-3. Clamping Rudder Pedals in Neutral Position .................................. 1K2
7-4. Rudder Pedals at Neutral Angle ............................................. 1K2
7-5. Main Gear Oleo Strut Assembly ............................................. 1K4
7-5a. Main Gear Service Tolerances ............................................... 1K6
7-6. Main Gear Installation ..................................................... 1K10
7-7. Aligning Main Gear ........................................................ 1K16
7-8. Toe-In/Toe-Out Adjustment ................................................ IK17
7-9. Adjust Nose Gear Down Limit Switch ........................................ 1K19
7-10. Adjust Main Gear Down Limit Switch ....................................... 1K19
7-11. Throttle Warning Switch ................................................... IK20
7-12. Nose Wheel Assembly ...................................................... 1L1
7-13. Main Wheel Assembly ..................................................... 1L3
7-14. Wheel Brake Assembly ..................................................... 1L4
Revised: 12/08/83
1A6
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS (cont.)
Figure Aerofiche
Grid No.
7-15. Removal and Installation of Anchor Bolts .................................... IL5
7-16. Brake Master Cylinder (Hand, Parking Brake) ................................ 1L7
7-17. Brake System Installation ..................... .............................. L8
7-18. Brake Cylinder (17000) (Toe Brake) .......................................... 1L9
7-19. Brake Cylinder (10-27) (Toe Brake) .......................................... 1L9
7-20. Brake Cylinder (10-30) (Toe Brake) .......................................... IL10
7-21. Brake Reservoir ........................................................... IL14
7-22. Bleeding Brake ........................................................... 1L14
8-1. Engine Cowling Installation ..................... ............................ 2A14
8-2. Cowl Flap Installation ........................................ 2A14
8-3. Propeller Installation ....................................................... 2A 16
8-4. Typical Nicks and Removal Method ......................................... 2A17
8-5. Propeller Governor ........................................................ 2A20
8-6. Engine Installation ......................................................... 2A23
8-7. Schematic Diagram of Turbocharger System .................................. 2B5
8-8. Induction System Installation ............................................... 2B6
8-8a. Magneto Assembly ........................................ 2B9
8-9. Contact Spring Inspection ..................... ............................. 2B11
8-10. Contact Points ......................................................... ... 2B12
8-11. Impulse Coupling .......................................................... 2B12
8-12. Flyweight Clearance of Impulse Coupling ..................................... 2B13
8-13. Rotor Holding Tool Installed ............................................... 2B14
8-14. Timing Kit Installed ........................................ 2B14
8-15. Cast-In Timing Marks ...................................................... 2B15
8-16. Fabricated Pointer ......................................................... 2B15
8-17. Engine Timing Marks ...................................................... 2B17
8-18. Removing Spring From Lead Assembly ...................................... 2B19
8-19. Assembly Tool ........................................ 2B20
8-20. Assembly Tool Application ..................... ............................ 2B20
8-21. Measuring Lead Assembly Length ........................................... 2B20
8-22. Ferrule Seating Tool ....................................................... 2B22
8-23. Measuring Wire From Top of Ferrule ........... ............................. 2B22
8-24. Needle ...... ....................................... 2B22
8-25. Installing Grommet Over Lead Assemblies .................................... 2B22
8-26. Lead Assembly Installed in Grommet ........................................ 2B23
8-27. Wire Doubled Over For Installation of Eyelet ................................. 2B23
8-28. Ignition Schematic ......................................................... 2B24
8-29. Removing Frozen Spark Plug ........................................ 2C3
8-30. Lubrication System Maintenance Points ...................................... 2C6
8-31. Schematic Diagram of Fuel Injection System .................................. 2C8
8-32. Fuel Injector Nozzle Assembly .............................................. 2C9
8-33. Engine Controls ........................................................... 2C10
8-34. Idle Speed and Mixture Adjustment Points ................................... 2C 12
8-35. Sectional View of Altitude Compensating Fuel Pump Assembly ................. 2C16
8-36. Exhaust Bypass Valve Screw ................................................ 2C18
Revised: 3/16/81 1
1A7
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS (cont.)
Figure Aerofiche
Grid No.
9-1. Fuel System Schematic ..................................................... 2D7
9-2. Fuel Cell Installation ....................................................... 2D12
9-3. Fuel Gauges ............................................................... 2D20
9-4. Fuel Filter ........................................................... ..... 2D20
9-5. Fuel Selector Valve ........................................................ 2D23
9-6. Slider Resistor Terminal .................................................... 2EI
9-6a. Resistor Set-Up/Test for Fuel Quantity Gauge ................................ 2E3
9-6b. Maximum Deviation of Fuel Quantity Gauge Needle ........................... 2E4
10-1. Gyro Pressure System ...................................................... 2E14
10-2. Pitot-Static System, Serial Nos. 34-7570001 to 34-7670136 incl .................. 2E16
10-2a. Pitot-Static System, Serial Nos. 34-7670137 and up ............................ 2E17
10-3. Instrument Panel ................................................... ....... 2E18
11-1. Switch Panel - For Models Without Primer System ............................ 2F21
11-la. Switch Panel - For Models With Primer System ............................... 2F22
11-2. Removal of Slip Ring End Bearing .......................................... 2G 1
11-3. Removal of Rectifer . .................... .................................. 2G I
11-4. Testing Rotor for Ground .................................................. 2G4
11-5. Testing Rotor for Shorts ................................................... 2G4
11-6. Installation of Rectifier ..................................................... 2G5
11-7. Terminal Assembly ........................................................ 2G6
11-8. Slip Ring End Bearing Assembly ........................................... 2G7
11-9. Testing Alternator ........................................................ . 2G7
11-10. Regulator Diagram .................................................. ...... 2G 10
11-11. Testing Regulator .......................................................... 2G12
11-12. Adjusting Regulator ....................................................... 2G 13
11-13. Application of Overvoltage Control .......................................... 2G15
11-14. Testing Overvoltage Control ................................................ 2G15
11-15. Exploded View of Starting Motor ........................................... 2G17
11-16. Turning Motor Commutator ...................................... ...... .. 2G18
11-17. Testing Motor Armature for Shorts .......................................... 2G18
11-18. Testing Motor Fields for Grounds ........................................... 2G19
11-19. No-Load Test Hookup ............................................ ........ 2G19
11-20. Stall Torque Hookup ...................................................... 2G20
11-21. Landing Light Adjustment .................................................. 2H1
11-22. Adjusting Lift Detector Micro Switch ........................................ 2H2
NOTE
Electrical Schematics for Section XI. see 2F18
12-1. Two Year, Magnesium Battery Connections ................................... 2122
12-2. Garrett ELT Schematic ................................. .................. 2123
12-3. Communications Components ELT Schematic ................................. 2J 1
12-4. Emergency Locator Transmitter Schematic (Narco) ............................ 2J I
Revised:
11/12/82 lA8
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS (cont.)
Figure
12-5. ELT Portable Folding Antenna (Narco) ......................................
12-6. ELT Using Fixed Aircraft Antenna (Narco) ...................................
13-1. Cabin Heater, Defroster and Fresh Air Installation ............................
13-2. Heater and Combustion Air Blower Assembly (30,000 BTU) ....................
13-3. Heater and Combustion Air Blower Assembly (45,000 BTU) ....................
13-4. Diagramatic Cutaway of Heater to Show Whirling Flame Action ................
13-5. Fuel Regulator and Shutoff Valve ...........................................
13-6. Top View - Duct Switch ....................................................
13-7. Wiring Diagram...........................................................
13-8. Primary Power Circuit .....................................................
13-9. Starting Power Circuit .....................................................
13-10. Spark Plug Fixture ........................................................
13-11. Wiring - Test Setup ........................................................
13-12. Spark Plug Gap Adjustment ................................................
13-13. Ignition Unit Assembly .....................................................
13-14. Test Setup for Fuel Regulator and Shutoff Valve ..............................
13-15. Heater Fuel Pump .........................................................
13-16. Suggested Design for Seal Plates, Plugs, and Caps for
Combustion Tube Leakage Test ...........................................
13-17. Test Setup for Combustion Air Pressure Switch ...............................
13-18. Exploded View of Heater Assembly (30,000 BTU) .............................
13-19. Exploded View of Heater Assembly (45,000 BTU) .............................
13-20. Exploded View - Combustion Air Blower and Motor Assembly
(30,000 BTU) ...........................................................
13-21. Exploded View - Combustion Air Blower and Motor Assembly
(45,000 BTU) ...........................................................
13-22. Suggested Setup of Heater Operation Test ....................................
13-23. Wiring Connections for Heater Operation Test ................................
13-24. Spark Plug Gap Adjustment Tool ..........................................
14-1. Propeller Deicer Installation ................................................
14-2. Electrical Diagram Showing Cycle Sequence - Phase 1..........................
14-3. Electrical Diagram Showing Cycle Sequence - Phase II .........................
14-4. Electrical Diagram Showing Cycle Sequence - Phase III ........................
14-5. Electrical Diagram Showing Cycle Sequence - Phase IV ........................
14-6. Typical Use of Dial Indicator ...............................................
14-7. Centering of Brushes on Slip Rings ..........................................
14-8. Wiring Schematic - Electric Propeller Deicing System ..........................
14-9. Brush Block Assembly .....................................................
14-10. Brush Module Assembly 3E2011 .............................................
14-1Oa. Alternate Module Stacking Arrangement .....................................
14-1Ob. Modular Brush Assembly 3E2042-1 (2 Bladed Prop) ...........................
14-10c. Modular Brush Assembly 3E2062-2 (3 Bladed Prop) ...........................
14-10d. Angle of Contact Brushes to Slip Rings ......................................
Aerofiche
Grid No.
2J3
2J3
2J9
2J12
2J13
2J14
2J16
2J16
2J20
2J21
2J22
2J24
2J24
2KI
2K5
2K8
2K9
2K17
2K17
2K21
2K22
2L3
2L4
2L6
2L6
2L9
3A12
3A13
3A13
3A14
3A14
3A16
3A17
3A19
3A20
3A22
3A22
3A23
3A23
3A24
Revised: 3/16/81 1A9
Island Enterprises

Figure
PIPER SENECA II SERVICE MANUAL
LIST OF ILLUSTRATIONS (cont.)
Aerofiche
Grid No.
14-11.
14-12.
14-13.
14-14.
14-15.
14-15a.
14-16.
14-17.
14-18.
14-19.
14-20.
14-20a.
14-21.
14-22.
14-23.
14-24.
14-25.
14-26.
14-27.
14-28.
14-29.
14-30.
14-31.
14-32.
14-33.
14-34.
14-35.
14-36.
14-37.
14-37a.
14-38.
14-39.
Propeller Deicer Installation ................................................
Installation of Deicer Boot..................................................
Wrinkled Deicers ..........................................................
Sealer Application (Boot) ..................................................
Pneumatic Diecer System Installation (S/N's to 34-8070144) ....................
Pneumatic Deicer System Installation (S/N 34-8070144 and up) .................
Pneumatic Deicer Boots Operation ...........................................
Pneumatic Deicer System Schematic .........................................
Ice Detection Light Schematic ...............................................
Portable Oxygen Installation ................................................
Fixed Oxygen System Installation (Optional) ..................................
Oxygen Tubing Installations ................................................
Oxygen System Filler Valve Installation ......................................
Oxygen Cylinder and Regulator Assembly ....................................
Oxygen Pressure Gauge Installation ..........................................
Air Conditioning System Installation .........................................
Test Gauge and Manifold Set ...............................................
Manifold Set Operation ....................................................
Leak Test Hookup.........................................................
Evacuation Hookup........................................................
Charging Stand ...........................................................
Charging Hookup .........................................................
Top Dead Center Casting Mark (Sankyo Compressor) .........................
Rotation of Clutch Front Plate (Sankyo Compressor) ..........................
Condenser Air Scoop Installation ............................................
Expansion Valve ..........................................................
Components Installation ....................................................
Air Conditioning Wiring Schematic (Early Models) ............................
Synchrophaser Wiring Schematic Auto Synch/Manual Switch ...................
Synchrophaser Wiring Schematic (Phase Adjustment Switch)....................
Engine Synchrophaser Installation ...........................................
Pulse Generator Installation .................................................
3B1
3B3
3B6
3B7
3B15
3B16
3B18
3B18
3C9
3C15
3C16
3C17
3C.18
3C18
3C20
3C24
3D5
3D6
3D7
3D9
3D 11
3D12
3D15
3D15
3D19
3D20
3D22
3E1
3E11
3E12
3E13
3E15
Revised:3/16/81 1A10
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF TABLES
Table Aerofiche
Grid No.
11-1.
11-11.
II-11A.
II-IIB.
II-III.
II-IV.
III-1.
IV-I.
IV-II.
IV-III.
IV-IV.
V-II.
V-II.
V-Ill.
V-III.
VI-l.
VII-I.
VI I-111.
VII-l.
VIII-ll.
VII-IV.
VIII-III.
VIII-IV.
VIII-VII.
IX-I.
IX-II.
IX-ll.
IX-IV.
X-I.
X-II.
X-lll.
X-IV.
X-V.
Leading Particulars and Principal Dimensions ..............................
Recommended Torque Values ............................................
Flare Fitting Torque Chart ...............................................
Thread Lubricants .......................................................
Conversion Tables ......................................................
Chart A. Inches to Millimeter ............................................
Chart B. Fraction; Decimal Conversions ...................................
Chart C. Centigrade Fahrenheit Conversion Table ..........................
Chart D. English Vs. Metric ..............................................
Chart E. Decimal Millimeter Equivalents of Drill Sizes
from 1 2" to No. 80 ...................................................
List of Consumable Materials .............................................
Inspection Report .......................................................
Maximum Distances Between Fluid Tubing Supports ........................
Maximum Resistance Values Allowed for Electrical Bonding..................
List of Materials (Thermoplastic Repair) ......... ..........................
Balance Specifications ................................................
Control Surface Travels and Cable Tensions ................................
Cable Tension Vs. Ambient Temperature ...................................
Troubleshooting Chart (Surface Controls) ..................................
Leading Particulars. Hydraulic Pump ......................................
Characteristics. Hydraulic Pump Motor
Troubleshooting Chart (Hydraulic System) .................................
Nose Gear Service Tolerances .............................................
Main Gear Service Tolerances .............................................
Toe-In - Toe-Out Correction Chart .......................................
Troubleshooting Chart (Landing Gear) .....................................
Propeller Specifications ..................................................
Propeller Chamber Pressure Requirements ..................................
Engine Data ............................................................
Fuel Flow Vs. Engine Speed ..............................................
Metered Fuel Assembly Calibration ........................................
Limits - Fuel Flow Vs. Brake H.P........................................
Troubleshooting Chart (Engine)...........................................
Fuel Quantity Sender Gauge Tolerances ....................................
Fuel Gauge Reading Tolerances ...........................................
Gauge Readings' Resistance With Fuel in Tanks .............................
Troubleshooting Chart (Fuel System) ......................................
Gvro Pressure System ....................................................
Directional Gyro Indicator ...............................................
Gvro Horizon Indicator .................................................
Rate of Climb Indicator ......... .......................................
Altimeter ..............................................................
IA21
IB2
1B4
1B4
1C8
1C9
1CII
1C12
1C13
1C14
1C15
1D2
1D19
1D19
1F7
1F17
1F23
1F24
1H17
1112
1112
1122
IJ12
1K7
IK15
1L15
2A18
2A18
2A21
2C17
2C18
2C19
2C20
2D20
2E4
2E5
2E6
2E12
2E20
2E21
2E22
2E23
Revised: 3/16/81 1All
Island Enterprises

PIPER SENECA II SERVICE MANUAL
LIST OF TABLES (cont.)
Table Aerofiche
Grid No.
X-VI.
X-VII.
X-VIII.
X-IX.
X-X.
X-XI.
X-XII.
X-XIII.
X-XIV.
X-XV.
X-XVI.
X-XVII.
XI-I.XI-1.
XI-III.
XI-IV.
XI-V.
XI-VI.
XI-VII.
XI-VIII.
XI-IX.
XIII-I.
XIII-II
XIV-I.
XIV-II.
XIV-III.
XIV-IV.
XIV-V.
XIV-VI.
XIV-VII.
XIV-VIII.
XIV-IX.
XIV-X.
XIV-XI.
XIV-XII.
XIV-XIII.
Airspeed Tubes and Indicator .............................................
Magnetic Compass ......................................................
Manifold Pressure Indicator ..............................................
Tachometer .............................................................
Engine Oil Pressure Gauge ...............................................
Turn and Bank Indicator .................................................
Fuel Quantity Indicators .................................................
Oil Temperature Indicators ...............................................
Exhaust Gas Temperature Gauge ..........................................
Cylinder Head Temperature Gauge ........................................
Fuel Flow Gauge .......................................................
Instrument Markings ....................................................
Index to Electrical Schematics ............................................
Alternator Specifications .................................................
Starting Motor Specifications .............................................
Hydrometer Reading and Battery Charge Percent ............................
Troubleshooting Chart (Electrical System) ..................................
Lamp Replacement Guide................................................
Electrical Wire Coding ...................................................
Electrical Symbols .......................................................
Electrical System Component Loads .......................................
Inspection ........ '
Inspection ......... ................................................................
Troubleshooting Chart (Janitrol Heater) ......... ..........................
Required Materials for Repair of Propeller Deicer ...........................
Mixing of Materials .....................................................
Electrical Resistance .....................................................
Troubleshooting Chart (Propeller Deicer System) ............................
Operating Pressures......................................................
Materials and Supplies for Cold Repair ......... ...........................
Troubleshooting Chart (Pneumatic Deicer System) ...........................
Oxygen System Components Limits........................................
Troubleshooting Chart (Oxygen System) ...................................
Temperature Pressure Chart ..............................................
Aluminum Tubing Torque ................................................
Blower System Wire Color Codes .........................................
Troubleshooting Chart (Air Conditioner) ...................................
2FI
2F2
2F5
2F6
2F7
2F8
2F9
2F10
2F13
2F14
2F14
2F15
2F18
2G8
2G21
2G23
2H8
2H20
2H21
2H22
2H23
2K5
2L10
3B3
3B5
3B7
3B9
3B21
3B24
3C7
3C13
3C21
3D1
3D4
3D24
3E2
I Revised:
8/10/80 1A12
Island Enterprises

SECTIONI
INTRODUCTION
Paragraph Aerofiche
Grid No.
1-1. General
1-2. Scope of
1-3. Descripti¢
1-4. Wing ..
1-5. Empenna
1-6. Fuselage
1-7. Landing Gear
1-8. Brake System
1-9. Engines a
1-10. Fuel Syst
1-11. Flight Co
1-12. Radio
1-13. Cabin Heater, Defroster and fresh air sustem
1-14. Instrument and Autopilot System
............................................... . ....I1A14
Manual ................... ....................... 1A14
................. .................. .......... 1A14
............................................... IA14
1A14
ge ............................................. IA14
1A14
Gear............................................ 1A14
system............................................ 1A14
item ............................................ 1A14
nd Propeller ....................................... 1A15
em ............................................ IA15
ntrols ...................................... ..... 1A15
............................................... 1A15
ater, Defroster and Fresh Air System ......................... 1A15
and Autopilot System ................................ 1A15
Reissued: 10/11/79
1A13
Island Enterprises

PIPER
SENECA
I SERVICE
MANUAL
SECTIONI
INTRODUCTION
1-1. GENERAL. This manual contains serviceand maintenance instructions for the Piper PA-34-200T
SenecaII, designed
and manufactured as a versatileairplane in the personalandbusinessaviationfield,by
the PiperAircraftCorporation, VeroBeach,Florida.
1-2. SCOPE
OF MANUAL. Sections II and III comprisethe servicepart of thismanual; whereas,
Sections
IV through XIVcomprisethe maintenance instructions.The serviceinstructions include groundhandling,
servicingand inspection. The maintenance instructions for each system include troubleshooting, removal
and installation of components, and correctivemaintenance and testing;eachmajorsystemof the airplane
is coveredin a separate section. Only qualified personnelshould perform the operations describedin this
manual.
The description of the airplane includedin this section is limited to generalinformation. Section II
givesleadingparticulars and principal dimensions,
along with ground handling,while eachmajorsystemis
described in its appropriate section of the manual For a more detailed descriptionof the airplane,refer to
the Owner's Handbook.
1-3. DESCRIPTION.The SenecaIIis a sixplace
(seventhseat optional), twin engine,low-wing
monoplane
of all metal construction. The following paragraphsprovide descriptions of the major components and
systems.
1-4. WING. The laminar flow wingis of allmetal stressed-skin,
full cantilever,
low-wing
design,
consisting
of two wing panels bolted to a sparbox assembly
in the fuselage.
The wingtips are removable.
Theailerons
are cable and push rod controlled and are aero dynamically balanced. The trailing edge wing flaps are
manuallyoperated.
1-5. EMPENNAGE.
The empennageconsistsof the fin, rudder, rudder trim tab, stabilator and stabilator
trim tabs. The rudder and stabilator are staticallybalanced.
1-6. FUSELAGE. The fuselageconsists of three basic units: the nose section, the cabin section and the
sheet-metaltailcone.
1-7. LANDING
GEAR. The tricyclelandinggearisof the retractable air-oil
strut type, consisting
of a nose
wheeland twomain wheels.
1-8. BRAKE SYSTEM.
The standard brakesystem
is operated hydraulically
by dual toe brakeslocated on
the rudder pedalsor by a hand leverconnected to a single
brake cylinderbelowand behind the left center
of the instrument panel.
Reissued: 10/11/79 A14 INTRODUCTION
A14
Island Enterprises

PIPERSENECA
I SERVICE
MANUAL
1-9. ENGINES AND PROPELLER. The airplane is powered by two Teledyne Continentalsix cylinder,
direct drive, wet sump, horizontally opposed turbocharged engines. The left enginerotation is in the
right-hand direction while the right enginerotates in the left-handdirection. The propellers
are Hartzellfull
feathering,constant speed units controlled by a governor
mounted on each engine.
1-10. FUEL SYSTEM.The fuel system consistsof two interconnected aluminumfuel tanks ineach wing,
havinga combined capacity of 49 U.S. gallons, for a total capacity of 98 U.S. gallons.With optional fuel
tanks, each wingwillhave a combined capacity of 64 U.S.
gallons,for a total capacityof 128U.S.gallons.
Incorporated in the system are selector valves, gascolators,and electric priming fuel pumps and engine
drivenpumps.
1-11. FLIGHT CONTROLS.The flightcontrols are conventionalequipment, consisting
of a control wheel
which operates the ailerons and stabilator, and pedals which operate the rudder. Duplicate controls are
provided for the copilot. Trimcontrols are provided for the rudder and stabilator.
1-12. RADIO. Provisionsare provided for the installationsof microphoneand headsetjacks, loudspeaker,
andpanel spacefor radios andvariousavionic
equipment.
1-13. CABIN
HEATER,
DEFROSTER
ANDFRESHAIR SYSTEM.Heatedair for the cabinand defroster
isobtained from the combustion heater located in the tail cone. Fresh air issuppliedto the heater from an
intake located in the dorsal fin. The combustion heater has a blower which is used to circulate heated or
unheated air through six adjustable outlets. There isa defroster blower,
in the samedistribution systemto
provide additional defrost capability when required. There are six overheadfresh air vents supplied by a
separateinlet in the dorsal fin.Thissystem can be supplementedby an optional blower.
1-14. INSTRUMENT
AND AUTOPILOTSYSTEM.Provisionsfor instrument installation include panels
for engineinstrumentsand advanced
instruments,aswellasfor an Autopilot system.
Reissued: 10/11/79 INTRODUCTION
1A15
Island Enterprises

SECTIONII
HANDLING
AND
SERVICING
Aerofiche
Paragraph Grid No.
2-1. Introduction ........................................... .1A18
2-2. Dimensions ...................................... ....... 1A18
2-3. Station Reference Lines ...................................... A18
2-4. Weight and Balance Data ..................................... A18
2-5. Serial Number Plate ...................................... .. 1A18
2-6. Access and Inspection Provisions ................................ 1A18
2-7. Tools and Test Equipment .................................... IA18
2-8. Torque Requirements ...................................... . IA24
2-8a. Torque Wrenches ................. .................................... . IB
2-9. Step, Handhold and Walkways .................................. -1B7
2-10. Ground Handling ...................................... ... 1B7
2-11. Introduction to Ground Handling ............... ......... .1B7
2-12. Jacking ...................................... ... B7
2-13. Weighing .......................................... . B8
2-14. Leveling ................... ................... .. . 1B8
2-15. Mooring ...................................... .. . 1B9
2-16. Locking Airplane .................................. . 1B9
2-17. Parking .. ...................................... IBIO
2-18. Towing ................................... ... ... IBIO
2-19. Taxiing ...................................... .. . IBIO
2-20. External Power Receptacle .................................... IB I
2-21. Operation of External Power Receptacle ...................... IBII
2-22. Servicing ................. .................... ........ IBII
2-23. Introduction to Servicing ................... ............ BIB I
2-24. Fuel System .................... ........................ IBII
2-25. Servicing Fuel System ................................. IBII
2-26. Filling Fuel Tanks ................................... 1B11
2-27. Handling of Moisture in Fuel System ................................... B12
2-28. Draining Fuel System ................................. 1B12
2-29. Brake System ........................................... .1B13
2-30. Servicing Brake System ................................ 1B13
2-31. Filling Brake Cylinder Reservoir ........................... B13
2-32. Draining Brake System ................................ B13
2-33. Oleo Struts ............................................. 11B13
2-34. Servicing Oleo Struts ................................. IB13
2-35. Filling Nose Gear Oleo Strut ............................. IB15
2-36. Filling MainGear Oleo Struts ............................ B17
2-37. Inflating Oleo Struts .............. .................... 1B19
2-38. Servicing Steering Bungees ................... B...........119
Revised:
8/10/80 1A16
Island Enterprises

Aerofiche
Paragraph Grids
2-39. Tires ... ................. ....... ........ .. ..... ....1 B19
2-40. Servicing Tires ..................................... 1
B19
2-41. Hydraulic System ........................................ .1B19
2-42. Servicing Hydraulic System ................... I.......... 1B19
2-43. Servicing Hydraulic Pump/Reservoir ........................ 1B20
244. Battery ............................................... 1B20
2-45. Servicing Battery.................................... IB20
246. Cleaning ......... ...... ........ ... ......... ...... ... 1B20
2-47. Cleaning Engine Compartments ...... ............ .... . 1B20
2-48. Cleaning Landing Gear ................................ 1B21
249. Cleaning Exterior Surfaces .............................. IB21
2-50. Cleaning Windshield and Windows ......................... 1B21
2-51. Cleaning Headliner, Side Panels and Seats ..................... 1B21
2-52. Cleaning Carpets ................... .................. 1B22
2-53. Lubrication ....... .......... ............. . B22
2-54. Oil System (Engine) ................... ................... . . 1B22
2-55. Servicing Oil System ............................. 1B22
2-56. Filling Oil Sump ................... ...... .......... B.22
2-57. Draining Oil Sump .................................. . 1B22
2-58. Oil Screen (Suction) .................................. 1B22
2-59. Oil Filter (Full Flow) ................................ 1B22
2-60. Recommendations for Changing Oil ......................... 1B23
2-61. Lubrication Instructions ................... .......
2-62. Application of Oil ........................ ........
2-63. Application of Grease ..................... ........... . IB24
2-64. Lubrication Chart ................................... 1B24
NOTE
This chapter contains the Conversion Tables. For ease of use they
are also indexed herein.
CHART A. Inches to Millimeters ...................... IC9
CHART B. Fraction /Decimal Conversions .............. 1C II
CHART C. Centigrade/Fahrenheit Conversions .......... IC12
CHART D. English Vs. Metric ........................ IC13
CHART E. Decimal/Millimeter Equivalents of Drill
Sizes from 1/2"to No.80 .......................... IC14
Revised:
8/10/80 1A17
Island Enterprises

PIPER
SENECA
IISERVICE
MANUAL
SECTIONII
HANDLING
ANDSERVICING
2-1. INTRODUCTION.
This section contains routine handling and servicingprocedures that are most
frequently encountered. Frequent reference to this sectionwillaid the individual
by providing
information
such as the location of various components, ground handlingprocedures, routine serviceprocedures and
lubrication. Whenany system or component requires serviceother than the routine procedures
asoutlined
in this section,refer to the appropriate sectionforthat component.
2-2. DIMENSIONS.
The principal airplanedimensionsare shown in Figure2-1 and arelisted in.Table II-L
2-3. STATION REFERENCE LINES. In order to facilitate the location of various components of the
airplane which require maintenance and servicing,a method utilizing fuselagestation, wing station or
buttock line (BL),and waterline (WL)
designations
isfrequently employed in thismanual.(Refer to Figure
2-2.) Fuselagestations, buttock lines,and waterlines
are referencepoints measuredby inchesin the vertical
or horizontal direction from a given
reference line which indicates station locationsof structuralmembers
of the airplane.
2-4. WEIGHT AND BALANCEDATA. When figuring various weight and balance computations, the
empty, static and gross weight, and center of gravity of the airplane may be found in the Weight
and
BalanceForm ofthe AirplaneFlight Manual.
2-5. SERIALNUMBERPLATE. The serialnumber plateis located on the left sideof the fuselagenear the
leading edge of the stabilator. The serialnumber should alwaysbe used when referringto the airplaneon
service
or warranty matters.
2-6. ACCESSAND INSPECTIONPROVISIONS.The accessand inspectionprovisions
for the airplaneare
shown in Figure2-3. The component to be servicedor inspected through eachopeningisidentifiedin the
illustration. All access plates and panels are secured by either metal fasteners or screws.To enter the aft
sectionof the fuselage,
removethe rear baggagecompartment upholstery panelby removing
the attachment
screws.
CAUTION
Before entering the aft sectionof the fuselage,be surethe airplane
issupported at the tail skid.
2-7. TOOLS ANDTEST EQUIPMENT.Becauseof the simplicity and easy accessibility
of components,
few specialtoolsoutside normalshop tools willberequired.Tools that are requiredmay be fabricatedfrom
dimensions givenin the back of the sectionthat pertainsto a particularcomponent or are listedin the back
of the PA-34-200T
PartsCatalog.
Reissued: 10/11/79 HANDLING
ANDSERVICING
1A18
Island Enterprises

* PIPERSENECAII SERVICEMANUAL
13'6.7"
6'4"DIAMETER
7 DIHEDRAL
t
STATICCLOUDLINE
Figure2-1. ThreeView
Reissued: 10/11/79 HANDLING
ANDSERVICING
1A19
Island Enterprises

1 94
__
W.L
-1975
*PIPER SENECA
II SERVICE
MANUAL
76.98
W 14
1444
78.0
W.S
221.49
Figure2-2. Station References
Reissued: 10/11/79 A20
1A20 HANDLING AND SERVICING
Island Enterprises