Piper ARROW III - Schematic Diagram of Hydraulic System (Prestolite)

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Figure 6-1. Schematic Diagram of Hydraulic System (Prestolite)

Revised: 2/13/89

1H8

* CHEROKEE ARROW III SERVICE MANUAL

HYDRAULIC SYSTEM

Main Page

No. Aerofiche Card no3
- Table of Contents3
- List of Illustrations5
- Introduction13
- Handling and Servicing16
  - Dimensions18
  - Serial Number Plate18
  - Station Reference Lines18
  - Weight and Balance Data18
  - Three View of PA-28R-201T19
  - Three View of PA-28R-20120
  - Station Reference Lines of PA-28R-201T21
  - Station Reference Lines of PA-28R-20122
  - Access Plates and Panels23
  - Leading Particulars and Principal Dimensions24
  - General Requirements27
  - Recommended Nut Torques27
  - Fine Thread Series29
  - Torque Requirements30
  - Ground Handling31
  - Jacking31
  - Walkway, Handhold and Step31
  - Jacking Arrangement32
  - Weighing Arrangement32
  - Leveling33
  - Leveling Laterally33
  - Leveling Longitudinally33
  - Locking Airplane34
  - Mooring34
  - Parking34
  - Towing34
  - External Power Receptacle35
  - Operation of External Power Receptacle35
  - Taxiing35
  - Cleaning Engine Compartment36
  - Cleaning Exterior Surfaces36
  - Cleaning Landing Gear36
  - Cleaning Windshield and Windows36
  - Cleaning Carpets37
  - Cleaning Headliner, Side Panels and Seats37
  - Hydraulic System37
  - Servicing37
  - Servicing Points (PA-28R-201)38
  - Servicing Points (PA-28R-201T)39
  - Landing Gear System40
  - Oleo Struts40
  - Servicing Hydraulic Pump/Reservoir40
  - Servicing Landing Gear40
  - Filling Oleo Struts41
  - Brake System42
  - Draining Brake System42
  - Inflating Oleo Struts42
  - Servicing Brake System42
  - Induction Air Filter43
  - Propeller43
  - Removal of Air Filter43
  - Service Instruction43
  - Draining Fuel System44
  - Draining Mositure from Fuel System44
  - Filling Fuel Tanks44
  - Fuel Strainer44
  - Electrical System45
  - Fuel Additives45
  - Lubrication45
  - Servicing Electrical System45
  - Draining Oil Sump46
  - Oil Filter (Full Flow)46
  - Lubrication Instructions47
  - Recommendations for Changing Oil47
  - Application Grease48
  - Application of Oil48
  - Winterization Plate48
  - Lubrication Charts49
  - Recommended Engine Lubricating Oils50
  - Thread Lubricants51
  - Conversion Tables52
  - Centigrade - Fahrenheit Conversion Table55
  - Special Lubrication Instructions61
- Inspection73
  - Inspection Periods74
  - Inspection Requirements74
  - Recommended Lubricants74
  - Overlimit Inspection75
  - Preflight Inspection75
  - Service Publication Compliance Requirements75
  - Special Inspections75
  - Inspection Report76
- Structures89
  - Wing Group91
  - Aileron92
  - Installation of Wing Tip92
  - Removal of Wing Tip92
  - Wing Tip92
  - Wing Installation94
  - Installation of Wing Flap96
  - Removal of Wing96
  - Installation of Wing97
  - Empennage Group98
  - Methods of Securing Control Cables98
  - Removal of Stabilator98
  - Installation of Stabilator99
  - Installation of Stabilator Trim Tab100
  - Removal of Rudder100
  - Removal of Stabilator Trim Tab100
  - Stabilator Trim Tab100
  - Empennage Group Installation101
  - Fuselage Assembly103
  - Installation of Vertical Fin103
  - Removal of Vertical Fin103
  - Removal of Windshield103
  - Windshield Installation (Typical)104
  - Installation of Side Windows105
  - Installation of Windshield105
  - Removal of Side Windows105
  - Adjustment of Door106
  - Installation of Door106
  - Removal of Door106
  - Removal of Door Latch Mechanism106
  - Skin Materials and Thickness107
  - Adjustment of Door Latch Mechanism108
  - Installation of Door Latch Mechanism108
  - Installation of Door Lock Assembly108
  - Removal of Door Lock Assembly108
  - Baggage Door109
  - Installation of Baggage Door109
  - Installation of Baggage Door Lock Assembly109
  - Removal of Baggage Door Lock Assembly109
  - Door Seal Snubber Installation110
  - Installation of Baggage Door Hinge110
  - Removal of Baggage Door Hinge110
  - Structural Repairs110
  - Baggage Compartment Inspection Hole and Cover Plate111
  - Fabricated Tool for Baggage Door Lock111
  - Baggage Compartment Inspection Holes Cutout Details112
  - Cutting the Holes112
  - Installing Covers112
  - Fiberglass Repairs113
  - Fiberglass Touch-Up and Surface Repairs113
  - Fiberglass Fracture and Patch Repairs114
  - Product Listing for Liquid Safety Walk Compound115
  - Surface Preparation115
  - Thermoplastic Repairs115
  - Checking Control Surface Balance116
  - Checking Control Surfaces Free Play116
  - Control Surface Balancing116
  - Control Surface Balance Tool117
  - Balancing Ailerons118
  - Balancing Equipment118
  - Balancing Rudder119
  - Balance Specifications120
  - Rudder Balance Weight120
  - Balancing Stabilator121
  - Hose Clamp Tightening122
  - Maximum Distance between Supports for Fluid Tubing122
  - Removal of Cherrylock Rivet123
  - Identification of Aircraft Fluid Lines124
  - Torque Wrench Formula125
  - Torque Wrenches125
- Surface Controls126
  - Standard Procedures127
  - Control Surface Travel and Cable Tension128
  - Cable Tension Vs. Ambient Temperature130
  - Control Column Assembly133
  - Removal of Control Column Assembly133
  - Installation of Control Column Assembly134
  - Aileron Controls135
  - Removal of Aileron Control Cables136
  - Remove of Aileron Bellcrank Assembly137
  - Installation of Aileron Bellcrank Assembly138
  - Rigging and Adjustment of Aileron Controls139
  - Aileron Rigging Tool140
  - Stabilator Rigging Tool140
  - Stabilator Controls142
  - Rigging and Adjustment of Stabilator Controls143
  - Methods of Securing Trim Cables144
  - Removal of Stabilator Trim Assembly144
  - Stabilator Trim Controls144
  - Installation of Stabilator Trim Assembly146
  - Stabilator Trim Control147
  - Removal of Rudder and Steering Pedal Assembly148
  - Rudder and Steering Pedal Assembly148
  - Installation of Rudder and Steering Pedal Assembly150
  - Rudder Controls151
  - Clamping Rudder Pedals152
  - Removal of Rudder Control Cable152
  - Rudder Rigging Tool152
  - Rigging and Adjustment of Rudder Controls153
  - Installation of Rudder Trim Controls154
  - Removal of Rudder Trim Controls154
  - Rudder Trim Controls154
  - Removal of Wing Flap Controls155
  - Rigging and Adjustment of Rudder Trim Controls155
  - Rudder Trim Control155
  - Installation of Wing Flap Controls156
  - Flap Controls157
  - Flap Rigging Tool158
  - Flap Step Adjustment158
  - Rigging and Adjustment of Wing Flaps159
  - Fabricated Aileron Bellcrank Rigging Tool160
  - Fabricated Aileron and Flap Rigging Tool161
  - Fabricated Stabilator Rigging Tool162
  - Fabricated Rudder Rigging Tool163
  - Troubleshooting Chart (Surface Controls)164
- Hydraulic System173
  - Schematic Diagram of Hydraulic System (Prestolite)176
  - La. Schematic Diagram of Hydraulic System (Oildyne)177
  - Hydraulic System Installation178
  - Disassembly of Hydraulic Pump180
  - Leading Particulars, Hydraulic System180
  - Removal of Hydraulic Pump180
  - Assembly of Hydraulic Pump181
  - Cleaning, Inspection and Repairs of Hydraulic Pump181
  - Hydraulic Pump/Reservoir, Exploded View (Prestolite)182
  - Hydraulic Pump/Reservoir, Exploded View (Oildyne)183
  - Test and Adjustments of Hydraulic Pump (Prestolite)184
  - Test and Adjustment of Hydraulic Pump185
  - Characteristics, Hydraulic Pump Motor186
  - Gear Back-Up Extender Actuator Assembly187
  - Removal of Gear Back-Up Extender Actuator Assembly187
  - Checking Aligning Brackets of Gear Back-Up Extender Actuator189
  - Installation of Gear Back-Up Expender Actuator Assembly189
  - Gear Back-Up Extender Actuator190
  - Check for Adjustment of Gear Back-Up Extender Actuator191
  - Operation Check of Retractable Landing Gear System193
  - Nose Gear Actuating Cylinder195
  - Assembly of Nose Gear Actuating Cylinder196
  - Cleaning, Inspection, and Repair of Nose Gear Actuating Cylinder196
  - Disassembly of Nose Gear Actuating Cylinder196
  - Removal of Nose Gear Actuating Cylinder196
  - End Gland Locking Device197
  - Installation of Nose Gear Actuating Cylinder197
  - Removal of Main Gear Actuating Cylinder197
  - Main Gear Actuating Cylinder198
  - Assembly of Main Gear Actuating Cylinder199
  - Cleaning, Inspection and Repair of Main Gear Actuating Cylinder199
  - Disassembly of Main Gear Actuating Cylinder199
  - Hydraulic Lines199
  - Testing Hydraulic System200
  - Hydraulic System Troubleshooting202
  - Gear Back-Up Extender Actuator Aligning Tool211
  - Landing Gear and Brake System213
  - Disassembly of Nose Gear Oleo216
  - Assembly of Nose Gear Oleo217
  - Cleaning, Inspection and Repair of Nose Gear Oleo217
  - Nose Gear Oleo Strut Assembly218
  - Removal of Nose Landing Gear220
  - Nose Gear Installation221
  - Cleaning, Inspection and Repair of Nose Landing Gear222
  - Installation of Nose Landing Gear222
  - Adjustment of Nose Landing Gear223
- Landing Gear and Brake System223
  - Nose Gear Adjustment224
  - Nose Gear Adjustment (PA-28R-201T)225
  - Alignment of Nose Landing Gear226
  - Clamping Rudder Pedals in Neutral Position227
  - Rudder Pedals at Neutral Angle227
  - Nose Gear Door Retraction Mechanism (PA-28R-201)228
  - Nose Gear Door Retraction Mechanism (PA-28R-201T)229
  - Main Gear Oleo Strut Assembly230
  - Main Gear Installation232
  - Aligning Main Gear234
  - Cleaning, Inspection and Repair of Nose Gear Door Assembly235
  - Installation of Nose Gear Assembly235
  - Removal of Nose Gear Door Assembly235
  - Adjustment of Nose Gear Doors236
  - Disassembly of Main Gear Oleo236
  - Main Landing Gear System236
  - Assembly of Main Gear Oleo237
  - Cleaning, Inspection and Repair of Main Gear Oleo237
  - Cleaning, Inspection and Repair of Main Landing Gear238
  - Removal of Main Landing Gear238
  - Installation of Main Landing Gear239
  - Adjustment of Main Landing Gear240
  - Alignment of Main Landing Gear242
  - Cleaning, Inspection and Repair of Main Gear Door Assembly243
  - Removal of Main Gear Door Assembly243
  - Toe-In—Toe-Out Correction Chart243
  - Adjustment of Main Gear Door Assembly244
  - Adjustment of Nose Gear up Limit Switch244
  - Installation of Main Gear Door Assembly244
  - Landing Gear Limit Switches244
  - Adjustment of Main Gear up Limit Switch245
  - Adjustment of Nose Gear down Limit Switch245
  - Adjustment of Gear Back-Up Extender Actuator Switch246
  - Adjustment of Landing Gear Safety Switch246
  - Adjustment of Main Gear down Limit Switch246
  - Landing Gear Up/Power Reduced Warning Switch246
  - Flap Torque Tube Cam Gear Warning Switch Installation247
  - Adjustment of Landing Gear Up/Power Reduced Warning Switch248
  - Installation of Landing Gear Up/Power Reduced Warning Switch248
  - Removal of Landing Gear Up/Power Reduced Warning Switch248
  - Throttle Warning Switches248
  - Assembly and Installation of Nose Wheel249
  - Inspection of Nose Wheel Assembly249
  - Removal and Disassembly of Nose Wheel249
  - Nose Wheel Assembly250
  - Removal and Disassembly of Main Wheel250
  - Assembly and Installation of Main Wheel251
  - Inspection of Main Wheel Assembly251
  - Main Wheel Assembly251
  - Brake Adjustment and Lining Tolerance252
  - Removal and Disassembly of Wheel Brake Assembly252
  - Wheel Brake Assembly252
  - Assembly and Installation of Wheel Brake Assembly253
  - Cleaning, Inspection and Repair of Wheel Brake Assembly253
  - Removal of Brake Master Cylinder253
  - Removal of Anchor Bolt254
  - Installation of Anchor Bolt255
  - Assembly of Brake Master Cylinder256
  - Cleaning, Inspection and Repair of Brake Master Cylinder256
  - Disassembly of Brake Master Cylinder256
  - Installation of Brake Master Cylinder256
  - Brake System Installation257
  - Disassembly of Brake Cylinder258
  - Removal of Brake Cylinder258
  - Toe Brake Installation259
  - Brake Cylinder260
  - Assembly of Brake Cylinder261
  - Brake Bleeding Procedure261
  - Cleaning, Inspection and Repair of Brake Cylinder261
  - Installation of Brake Cylinder261
  - Bleeding of the Brakes after a Unit Has Been Changed263
  - Brake System Leak Check263
  - Bleeding Brakes264
  - Troubleshooting Chart (Landing Gear)265
  - Nose Gear Service Tolerances272
  - Main Gear Service Tolerances275
  - Aerofiche Explanation and Revision Status280
- Aerofiche Card no281
  - Power Plant Turbocharged Continental289
  - Cleaning, Inspection and Repair of Engine Cowling290
  - Removal of Engine Cowling290
  - Engine Cowling Installation291
  - Installation of Engine Cowling291
  - Removal of Propeller291
  - Propeller Installation292
  - Cleaning, Inspection and Repair of Propeller293
  - Installation of Propeller293
  - Propeller Blade Minor Repair294
  - Propeller Specifications294
  - Checking Propeller Blade Track295
  - Propeller Governor295
  - Removal of Propeller Governor295
  - Installation of Propeller Governor296
  - Rigging and Adjustment of Propeller Governor296
  - Removal of Engine297
  - Engine Installation298
  - Engine Data299
  - Installation of Engine300
  - Schematic Diagram of Turbocharger System301
  - Engine Shock Mounts302
  - Replacement of Engine Shock Mounts302
  - Turbocharger Nomenclature302
  - Deck Pressure303
  - Density Controller303
  - Differential Pressure Controller303
  - Manifold Pressure303
  - Bootstrapping304
  - Critical Altitude304
  - Overboost304
  - Overshoot304
  - Installation of Turbocharger305
  - Removal of Turbocharger305
  - Adjustment of Turbocharger306
  - Induction System Air Filter306
  - Installation of Overboost Valve306
  - Removal of Overboost Valve306
  - Cleaning Induction Air Filter307
  - Induction System Installation307
  - Alternate Air Door308
  - Inspection of Magnetos308
  - Installation of Air Filter308
  - Magnetos308
  - Magneto Assembly309
  - Contact Spring Inspection310
  - Contact Points311
  - Flyweight Clearance of Impulse Coupling312
  - Impluse Coupling312
  - Removal of Magneto312
  - Magneto Timing Procedure (Internal Timing)313
  - Rotor Holding Tool Installed313
  - Timing Kit Installed313
  - Cast-In Timing Marks314
  - Fabricated Pointer314
  - Engine Timing Marks315
  - Harness Assembly316
  - Inspection of Harness316
  - Removal of Harness317
  - Removing Spring from Lead Assembly317
  - Maintenance of Harness318
  - Assembly Tool319
  - Assembly Tool Application319
  - Measuring Lead Assembly Length319
  - Ferrule Seating Tool321
  - Installing Grommet over Lead Assemblies321
  - Measuring Wire from Top of Ferrule321
  - Needle321
  - Lead Assembly Installed in Grommet322
  - Wire Doubled over for Installation of Eyelet322
  - Ignition Schematic323
  - Removal of Spark Plugs324
  - Inspection and Cleaning of Spark Plug325
  - Installation of Spark Plugs325
  - Removing Frozen Spark Plug325
  - Lubrication System326
  - Lubrication System Maintenance Points326
  - Engine Fuel System327
  - Fuel Injection System Maintenance327
  - Oil Filter Replacement327
  - Schematic Diagram of Fuel Injection System328
  - Cleaning and Inspection of Fuel Injector Nozzles329
  - Fuel Injector Nozzle Assembly329
  - Installation of Fuel Injector Nozzles329
  - Removal of Fuel Injector Nozzles329
  - Engine Controls330
  - Engine Setup Procedures331
- Power Plant (Continental)331
  - Rigging Throttle, Mixture and Governor Controls331
  - Idle Speed and Mixture Adjustment Points332
  - Sectional View of Altitude Compensating Fuel Pump Assembly334
  - Exhaust Bypass Screw336
  - Metered Fuel Assembly Calibration336
  - Limits - Fuel Flow Vs. Brake H.p.337
  - Troubleshooting Chart (Engine)338
  - Power Plant Lycoming345
  - Standard Practices-Engine345
  - A-1. Propeller Installation (Hartzell)347
  - Blade Track349
  - Installing Propeller349
  - Adjustment of Throttle and Mixture Controls356
  - Installation of Oil Cooler356
  - Adjustment of Engine Controls357
  - Fuel Injector358
  - Fuel Injector Maintenance358
  - Schematic Diagram of RSA Fuel Injection System359
  - Adjustment of Idle Speed and Mixture360
  - Cleaning and Inspection of Fuel-Air Bleed Nozzle360
  - Removal of Fuel-Air Bleed Nozzle360
  - Fuel - Air Bleed Nozzle361
  - Ignition System Maintenance362
  - Engine Troubleshooting377
- Fuel System382
- Fuel System Diagram385
- Fuel System Diagram (PA-28R-201) S/N 2837001 and up386
- Fuel System Diagram (PA-28R-201T)387
- Inspection and Repair of Fuel Tank388
- Installation of Fuel Tank388
- Removal of Fuel Tanks388
- Fuel Sender Units Installation389
- Engine Primer System Placard390
- Fuel Sender Locations390
- Fuel Quantity Transmitters391
- Installation of Transmitters391
- Removal of Transmitters391
- Fuel Quantity Indicator392
- Fuel Quantity Transmitter Calibration Tolerances392
- Fuel Quantity Transmitter/Gauge Check392
- Installation of Fuel Selector Valve393
- Removal of Fuel Filter Bowl and Housing393
- Removal of Fuel Selector Valve393
- Auxiliary Fuel Pump System Adjustment394
- Cleaning and Inspection of Filter Bowl Screen394
- Installation of Fuel Filter Bowl and Screen394
- Removal and Insta L L Ation of Electric Fuel Pump394
- Aux Fuel Pump Variable Resistor395
- Auxiliary Fuel Pump System Operational Check396
- Disassembly, Repair and Assembly of Fuel Pump397
- Electric Fuel Pump397
- Removal of Fuel Pump397
- Transmitter/Fuel Gauge Tolerances397
- Adjustment of Electric Fuel Pump398
- Cleaning Fuel System398
- Installation of Fuel Pump398
- Inspection and Tightening of Fuel Line Union Fittings399
- Replacement of Fittings400
- Tolerances, Union Nut and Tubing Nut400
- Troubleshooting Chart. (Fuel System)401
- Instruments403
- Table of Contents404
Aerofiche Paragraph Grid no405
- Non-Electrical Instruments406
- Vacuum System Description and Operation406
- Vacuum System Service Tips406
- Gyro Filters407
- Vacuum Gauges407
- Engine Driven Vacuum Pump408
- Installation of Engine Driven Vacuum Pump408
- Removal of Engine Driven Vacuum Pump408
- Vacuum Regulator408
- Instrument Panel (Typical)409
- Instrument Panel (PA-28R-201 S/N 2837001 and Up)410
- Instrument Panel (PA-28R-201T S/N 2803001 and Up)411
- Pitot Static System412
- Vacuum-Auxiliary Vacuum Installation414
- Adjustment of Vacuum Regulator Valve416
- Removal and Replacement of Regulator Valve416
- Vacuum Regulator Valve416
- Troubleshooting Chart (Vacuum System)417
- Directional Gyro Indicator419
- Pitot-Static Systems419
- Suction Gauge419
- Direction Gyro420
- Gyro Horizon Indicator420
- Gyro Horizon421
- Rate of Climb Indicator421
- Altimeter423
- Sensitive Altimeter423
Airspeed Indicator425
Airspeed Tubes and Indicator425
Removal and Replacement425
Troubleshooting425
10-41A426
Adjustment of Compass426
General426
Magnetic Compass426
Troubleshooting427
General428
Manifold Pressure Gauge428
Manifold Pressure Indicator428
Removal and Replacement428
Troubleshooting428
General429
Removal and Replacement429
Tachometer Indicator429
Troubleshooting429
Engine Oil Pressure Gauge430
Fuel Pressure Gauge430
General430
Removal and Replacement430
Troubleshooting430
Fuel Pressure Gauge431
Removal and Replacement431
Troubleshooting431
Electrical Instruments432
Fuel Quantity Indicator432
General432
Removal and Replacement432
Troubleshooting432
Turn and Bank Indicator432
Fuel Quantity Indicators433
General433
Oil Temperature Indicator433
Removal and Replacement433
Troubleshooting433
Ammeter434
General434
- Oil Temperature Indicators434
- Removal and Replacement of Face Mounted Instruments434
Troubleshooting434
- Cylinder Head Temperature Gauge435
- Gyro Fitting Installation Procedure435
- Removal and Replacement of Cluster Mounted Instruments435
- Annunciator Panel436
- Piper Autocontrol System436
- Electrical System437
- Aerofiche Paragraph Grid no439
  - Bench Testing Alternator442
  - Field Current Draw442
  - Lamp-Bank Load442
  - Checking Field443
  - Testing Field Circuit443
  - Testing Rectifiers (Positive)444
  - Testing Rectifiers (Negative)445
  - C-3928 Fixture and Adapters446
  - Removing and Installing Rectifiers446
  - Removing Rectifiers446
  - Installing Rectifiers447
  - Soldering Rectifier Lead448
  - Testing Stator Coils449
  - Testing Stator Coils for Ground449
  - Installing End Bearing450
  - Installing Needle Bearing in End Shield450
  - Removing End Bearing450
  - Removing Needle Bearing from End Shield450
  - Removing Drive End Bearing451
  - Removing Drive Pulley451
  - Replacing Slip Rings451
  - Installation of Slip Rings452
  - Removing Slip Rings452
  - Installing Drive End Bearing453
  - Installing Grease Retainer453
  - Assembling End Shield Sub-Assemblies454
  - Installing Pulley454
  - Bench Hot Stabilization Output Test455
  - Bench Run-Up Test455
  - Alternator Belt Tension456
  - Check Alternator Belt Tension456
  - Meter Connections for Alternator Performance Test456
  - Alternator Service Precautions457
  - Alternator System457
  - Description of Alternator458
  - Exploded View of Alternator458
  - Disassembly of Alternator459
  - Removal of Rectifier459
  - Removal of Slip Ring End Bearing459
  - Inspection and Testing of Components460
  - Removal of Drive End Head460
  - Removal of End Head Bearing460
- Assembly of Alternator461
  - Testing Rotor for Ground461
  - Testing Rotor for Shorts461
  - Installation of Drive End Head462
  - Installation of Rectifier462
  - Alternator Service Test Specification463
  - Terminal Assembly463
- Testing of Alternator463
  - Alternator Specifications464
  - Slip Ring End Bearing Assembly464
  - Testing Alternator464
  - Brush Installation465
  - Checking Voltage Regulator465
  - Internal Wiring Diagram465
- Voltage Regulator (Wico)465
- Check Overvoltage Relay466
- Overvoltage Relay (Wico)466
- Starting Motors (Prestolite)466
  - Exploded View of Gear Reduction Staring Motor467
  - Exploded View of Starting Motor (PA-28R-201T)468
  - Testing Motor Armature for Short469
  - Turning Starting Motor Commutator469
- Brush Holders470
  - Field Coils470
  - No-Load Test Hook-Up470
  - Testing Motor Field for Grounds470
- Assembly471
- Bendix Drive (PA-28R-201)471
  - Gear and Pinion Housing471
  - Stall - Torque Hook-Up471
- Bench Tests472
- Removal of Battery472
- Servicing Battery472
- Starting Motor Control Circuit472
- Installation of Battery473
  - Starting Motor Service Test Specifications473
  - Battery Box Corrosion Prevention474
  - Hydrometer Reading and Battery Charge Percent474
  - Installation of Wing Navigation Lights475
- Landing and Taxi Light475
  - Navigation Lights475
  - Removal of Wing Navigation Lights475
  - Installation of Tail Navigation Light476
  - Installation of Wing Tip Strobe Light476
  - Removal of Tail Navigation Light476
  - Removal of Wing Tip Strobe Light476
  - Strobe Light Connections (Earlier Models)477
  - A. Strobe Light Connections (Later Models)478
  - Installation of Dimmer Control Assembly480
  - Instrument and Panel Lights480
  - Removal of Dimmer Control Assembly480
  - Installation of Oil Pressure Sensor481
  - Installation of Vacuum Sensor481
  - Removal of Ignition Switch481
  - Removal of Vacuum Sensor481
  - Ignition Switch482
  - Terminal Block483
  - Electrical System Troubleshooting484
  - Electrical Symbols498
  - Electrical Wire Coding499
  - Electrical System Schematics500
  - Instrument Lights, PA-28R-201T506
  - Alternator and Starter, PA-28R-201507
  - Alternator and Starter, PA-28R-201T (Early Models)508
  - Alternator and Starter Schematic509
  - Fuel Pump, PA-28R-201T510
  - Landing Gear, PA-28R-201/201T511
- Electronics513
  - Introduction to Autoflight514
  - Non-Piper A.f.C.s. Equipment Contacts514
  - Emergency Locator Transmitter516
  - Pilot’s Remote Switch518
  - Testing Emergency Locator Transmitter518
  - Testing Pilot’s Remote Switch519
  - Inadvertent Activation520
  - ELT Schematic (Typical)521
  - ELT Portable Folding Antenna (Narco)522
  - ELT Using Fixed Aircraft Antenna (Narco)522
- Description523
  - Heating and Ventilating523
  - Heater Maintenance524
  - Overhead Vent System524
  - Cabin Heater and Defroster (PA-28R-201)525
  - Cabin Heater and Defroster (PA-28R-201T)526
  - Overhead Vent System and Fresh Air System527
  - Arrow III - Turbo Arrow III529
  - Accessories and Utilities535
  - Air Conditioning Installation535
  - Air Conditioning System Operation535
  - Air Conditioning System Installation536
  - Temperature Pressure Chart537
  - Malfunction Detection538
  - General Refrigeration System Procedures539
  - Refrigerant Safety Precautions539
  - Special Servicing Procedures539
  - System Servicing Precautions539
  - Aluminum Tubing Torque540
  - Service Valves540
  - Test Gauge and Manifold Set541
  - Manifold Set Operation542
  - Checking the System for Leaks543
  - Leak Check543
  - Leak Test Hookup543
  - Evacuating the System544
  - Evacuation Hookup545
  - Charging the System546
  - With a Charging Stand546
  - Charging Stand547
  - Using the Airplane Compressor to Charge the System547
  - Charging Hookup548
  - Addition of Partial Charge to System549
  - Compressor Service549
  - Compressor Installation550
  - Compressor Removal550
  - Check Compressor Oil551
  - Compressor Oil Charge552
  - Rotation of Clutch Front Plate (Sankyo Compressor Oil Check)553
  - Top Dead Center Casting Mark (Sankyo Compressor)553
  - York Compressor and Fabricated Oil Dipstick554
  - Compressor and Alternator Belt Installation (Lycoming)555
  - Adjustment of Drive Belt Tension557
  - Magnetic Clutch (York Compressor)558
  - Magnetic Clutch Installation558
  - Magnetic Clutch Removal558
  - Receiver-Dehydrator Installation559
  - Receiver-Dehydrator Removal559
  - Refrigerant Lines and Routing559
  - Condenser Assembly Removal560
  - Condenser Assembly Rigging Instructions560
  - Condenser Door Actuator560
  - Condenser Installation560
  - Condenser Air Scoop Installation561
  - Expansion Valve Installation562
  - Expansion Valve Removal562
  - Evaporator Assembly563
  - Evaporator Assembly Installation563
  - Evaporator Assembly Removal563
- Accessories and Utilities564
- Components Installation564
- Pressure Relief Switch564
- Adjustment of Air Conditioning Throttle Switch565
- Overhead Vent Blower565
- Shoulder-Harness Inertial Reel Adjustment565
- Air Conditioning Wiring Schematic566
- Disassembly of Blower Assembly567
- Installation of Blower Assembly567
- Reassembly of Blower Assembly567
- Removal of Blower Assembly567
- Troubleshooting Chart (Air Conditioner)568
- Oxygen System576
- Fixed Oxygen System577
- Test Apparatus for Testing Oxygen System579
- Oxygen Tubing Installation580
- Cleaning and Purging of Oxygen System Components581
- Swageloc Fitting Installation582
- Installation of Swageloc Fittings583
- Application of Teflon Tape Thread Sealant584
- Oxygen System Limits584
- Leak Tests585
- Oxygen System Component Handling585
- Removal of Oxygen Cylinder585
- Installation of Recharge Valve586
- Removal of Recharge Valve586
- Installation of Oxygen Cylinder587
- Removal and Installation of Pressure Gauge587
- Removal of Outlets587
- Installation of Outlets588
- Refilling Oxygen System588
- Removal and Installation of Oxygen On/Off Control588
- Filling Pressure for Certain Ambient Temperatures589
- Portable Oxygen Installation590
- Portable Oxygen System590
- Inspection and Overhaul Times591
- Oxygen System Component Limits591
- Removal of Oxygen Unit591
- Testing for Leaks591
- Cleaning of Face Masks592
- Purging Oxygen System592

Piper ARROW III - Schematic Diagram of Hydraulic System (Prestolite)

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