John Deere Tractors Ultimate Series X700 X720 X724 & X728 TM2349 Service Manual – PDF DOWNLOAD
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John Deere Tractors Ultimate Series X700 X720 X724 & X728 TM2349 Service Manual – PDF DOWNLOAD
Manual Description:
This technical manual is written for an experienced technician and contains sections that are specifically for this product. It is a part of a total product support program.
The manual is organized so that all the information on a particular system is kept together. The order of grouping is as follows:
• Table of Contents
• Specifications and Information
• Identification Numbers
• Tools and Materials
• Component Location
• Schematics and Harnesses
• Theory of Operation
• Operation and Diagnostics
• Diagnostics
• Tests and Adjustments
• Repair
• Other
- The bleed tabs for the pages of each section will align with the sections listed on this page. Page numbering is consecutive from the beginning of the Safety section through the last section.
- We appreciate your input on this manual. If you find any errors or want to comment on the layout of the manual please contact us.
TABLE OF CONTENTS:
John Deere Tractors Ultimate Series X700 X720 X724 & X728 TM2349 Service Manual – PDF DOWNLOAD
TM2349 X700, X720, X724 and X728 John Deere Select Series Tractors................................ 1 Introduction.................................................................................. 3 Safety........................................................................................ 5 Recognize Safety Information.............................................................. 5 Understand Signal Words................................................................... 5 Replace Safety Signs...................................................................... 5 Handle Fluids Safely - Avoid Fires........................................................ 5 Use Care In Handling And Servicing Batteries.............................................. 5 Prevent Battery Explosions................................................................ 6 Prevent Acid Burns........................................................................ 6 Wear Protective Clothing.................................................................. 6 Use Care Around High-pressure Fluid Lines................................................. 6 Service Machines Safely................................................................... 7 Use Proper Tools.......................................................................... 7 Park Machine Safely....................................................................... 7 Support Machine Properly and Use Proper Lifting Equipment................................. 7 Work In Clean Area........................................................................ 7 Using High Pressure Washers............................................................... 7 Illuminate Work Area Safely............................................................... 7 Work In Ventilated Area................................................................... 8 Warning: California Proposition 65 Warning................................................ 8 Remove Paint Before Welding or Heating.................................................... 8 Avoid Harmful Asbestos Dust............................................................... 8 Service Tires Safely...................................................................... 8 Avoid Injury From Rotating Blades, Augers And PTO Shafts.................................. 9 Service Cooling System Safely............................................................. 9 Handle Chemical Products Safely........................................................... 9 Dispose of Waste Properly................................................................. 9 Live With Safety.......................................................................... 9 Specifications & Information.................................................................. 11 Table of Contents......................................................................... 11 Fastener Torques.......................................................................... 13 Metric Fastener Torque Values......................................................... 13 Inch Fastener Torque Values........................................................... 14 O-Ring Seal Service Recommendations....................................................... 15 Face Seal Fittings With Inch Stud Ends Torque......................................... 15 Face Seal Fittings With Metric Stud Ends Torque....................................... 16 O-Ring Face Seal Fittings............................................................. 17 O-Ring Boss Fittings.................................................................. 17 Straight Fitting or Special Nut Torques............................................... 18 Metric Fastener Torque Value - Grade 7 (Special)...................................... 18 General Information....................................................................... 18 Gasoline.............................................................................. 18 Gasoline Storage...................................................................... 19 4 - Cycle Gasoline Engine Oil......................................................... 19 Break-In Engine Oil - 4-Cycle Gasoline................................................ 19 Hydrostatic Transmission and Hydraulic Oil............................................ 20 Gear Case Oil......................................................................... 20 Gear Transmission Grease.............................................................. 21 Alternative Lubricants................................................................ 21 Synthetic Lubricants.................................................................. 21 Anti-Corrosion Grease................................................................. 21 Mower Spindle Grease.................................................................. 21 Lubricant Storage..................................................................... 21 Mixing of Lubricants.................................................................. 22 Oil Filters........................................................................... 22 Coolant Specifications.................................................................... 22 Gasoline Engine Coolant............................................................... 22 Gasoline Engine Coolant Drain Interval................................................ 23 Serial Number Locations................................................................... 23 Product Serial Number................................................................. 23 Gasoline Engine Serial Number Location................................................ 23 Engine - Gas (Liquid-Cooled).................................................................. 25 Table of Contents......................................................................... 25 Specifications............................................................................ 27 General Specifications................................................................ 27 Tests and Adjustments Specifications.................................................. 27 Repair Specifications................................................................. 28 Torque Specifications (Alphabetical).................................................. 29 Special or Required Tools............................................................. 30 Component Location........................................................................ 31 Engine (FD671D)....................................................................... 31 Engine (FD750D)....................................................................... 32 Theory of Operation....................................................................... 33 Cooling System Operation.............................................................. 33 Fuel and Air System Operation......................................................... 34 Fuel Injection Air System Components and Operation (FD750D)........................... 34 Fuel Pressure Regulator Operation (FD750D)............................................ 35 Governor Operation.................................................................... 35 Lubrication System Operation.......................................................... 36 Throttle Body Operation (FD750D)...................................................... 37 Diagnostics............................................................................... 38 Engine Diagnosis...................................................................... 38 Engine Tests.......................................................................... 42 Tests and Adjustments..................................................................... 44 Throttle Lever Adjustment............................................................. 44 Throttle Cable Adjustment............................................................. 44 Choke Adjustment (FD671D)............................................................. 45 Governor Adjustment................................................................... 45 Low Idle Speed Adjustment............................................................. 46 High Idle Speed Adjustment............................................................ 46 Compression Test...................................................................... 47 Valve Clearance Adjustment............................................................ 47 Crankcase Vacuum Test................................................................. 48 Engine Oil Pressure Test.............................................................. 50 Fuel Pump Flow Test for Carburetor (FD671D)........................................... 51 Fuel Pump Pressure Test for Carburetor (FD671D)....................................... 51 Fuel Pump Pressure Test For Fuel Injection (FD750D)................................... 52 Bleed Fuel System (FD750D)............................................................ 53 Fan Belt Tension Adjustment........................................................... 53 Thermostat Test....................................................................... 54 Cooling System Test................................................................... 54 Radiator Bubble Test.................................................................. 55 Radiator Cap Pressure Test............................................................ 55 Water Pump/Alternator Drive Belt Adjustment........................................... 55 Repair.................................................................................... 56 Thermostat Removal and Installation................................................... 56 Fan Belt Removal and Installation..................................................... 57 Cooling Fan and Bracket Removal and Installation...................................... 57 Coolant Pump Removal and Installation................................................. 58 Radiator Removal and Installation..................................................... 60 Muffler Removal and Installation...................................................... 62 Air Cleaner Removal and Installation.................................................. 63 Carburetor Removal and Installation (FD671D).......................................... 64 Throttle Body Removal and Installation (FD750D)....................................... 66 Fuel Injector Removal and Installation (FD750D)....................................... 67 Fuel Pressure Regulator Removal and Installation (FD750D)............................. 68 Cylinder Head Removal and Installation................................................ 69 Intake Manifold Removal and Installation (FD671D)..................................... 70 Intake Manifold Removal and Installation (FD750D)..................................... 71 Starting Motor Removal and Installation............................................... 73 Starter Motor Disassembly and Assembly................................................ 73 Starting Motor Inspection............................................................. 75 Engine Removal and Installation....................................................... 77 Flywheel Removal and Installation..................................................... 81 Push Rod/Rocker Arm Removal and Installation.......................................... 81 Valve Train Removal and Installation.................................................. 83 Crankcase Cover Removal and Installation.............................................. 84 Crankcase Cover Inspection............................................................ 86 Governor Assembly Removal and Installation............................................ 86 Piston Removal and Installation....................................................... 88 Inspect Piston and Cylinder........................................................... 91 Cylinder Bore Honing.................................................................. 93 Camshaft/Tappet Removal and Installation.............................................. 94 Camshaft Disassembly and Inspection................................................... 95 Crankshaft Removal and Replacement.................................................... 96 Crankshaft Inspection................................................................. 96 Connecting Rod Inspection............................................................. 98 Breather Valve Removal and Installation............................................... 99 Oil Pump Removal and Installation..................................................... 99 Oil Pump Inspection...................................................................100 Oil Screen Removal and Installation...................................................102 Electrical....................................................................................103 Table of Contents.........................................................................103 General Information.......................................................................107 Reading Electrical Schematics.........................................................107 Theory of Operation Information.......................................................108 Diagnostic Information................................................................108 Wire Color Abbreviation Chart.........................................................108 Common Circuit Tests..................................................................109 Conductors For 12 Volt Circuits.......................................................109 Specifications............................................................................111 General Specifications................................................................111 Test and Adjustment Specifications....................................................111 Repair Specifications.................................................................112 Special or Essential Tools............................................................113 Other Materials.......................................................................114 Component Location........................................................................115 Right Side............................................................................115 Left Side.............................................................................116 Engine Components (FD671D)............................................................117 Engine Components (FD750D EFI)........................................................118 Instrument Panel......................................................................119 Schematics and Harnesses..................................................................120 Schematic and Wiring Harness Legend - X700............................................120 Schematic And Wiring Harness Legend - X720/X724/X728..................................121 Electrical Schematic - X700 Carbureted (1 of 2).......................................123 Electrical Schematic - X700 Carbureted (2 of 2).......................................124 W1 Main Wiring Schematic - 720/X724/X728 EFI (1 of 2).................................125 W1 Main Wiring Schematic - 720/X724/X728 EFI (2 of 2).................................126 Liquid Cooled EFI Schematic (1 of 2)..................................................127 Liquid Cooled EFI Schematic (2 of 2)..................................................128 W1 Main Wiring Harness - X700 Carbureted (1 of 2).....................................129 W1 Main Wiring Harness - X700 Carbureted (2 of 2).....................................130 W1 Main Wiring Harness - X720/X724/X728 EFI (1 of 2)..................................131 W1 Main Wiring Harness - X720/X724/X728 EFI (2 of 2)..................................132 W2 Engine Wiring Harness - X700.......................................................133 W2 Engine Wiring Harness - X720/X724/X728.............................................134 W2 Engine Wiring Harness Circuit Schematic - X720/X724/X728...........................135 W3 Headlight Wiring Harness...........................................................136 W4 Rear Wiring Harness................................................................136 W5 PTO Option Wiring Harness..........................................................136 W6 Auxiliary Alternator Wiring Harness................................................137 W6 Auxiliary Alternator Wiring Harness Circuit Schematic..............................138 A2 EFI Module Pin and Signal Location.................................................139 W1 Main Wiring Harness Color Codes - X700.............................................140 W1 Main Wiring Harness Color Codes - X720/ X724/X728..................................141 W2 Engine Wiring Harness Color Codes - X700...........................................142 W2 Engine Wiring Harness Color Codes - X720/X724/X728.................................142 W3 Headlight Wiring Harness Color Codes...............................................142 W4 Rear Lights Wiring Harness Color Codes.............................................142 W5 PTO Option Wiring Harness Color Codes..............................................143 W6 Auxiliary Alternator Wiring Harness Color Codes....................................143 Operation and Diagnostics.................................................................144 Power Circuit Operation - X700........................................................144 Power Circuit Electrical Schematic - X700.............................................145 Power Circuit Diagnosis - X700........................................................147 Power Circuit Operation - X720/X724/X728..............................................153 Power Circuit Electrical Schematic - X720/X724/X728...................................155 Power Circuit Diagnosis - X720/X724/X728..............................................158 Cranking Circuit Operation - All Models...............................................165 Cranking Circuit Electrical Schematic - All Models....................................166 Cranking Circuit Diagnosis - All Models...............................................167 Charging Circuit Operation - All Models (Standard Configuration)......................168 Charging Circuit Operation - All Models (With Auxiliary Alternator)...................168 Charging Circuit Electrical Schematic - All Models....................................169 Charging Circuit Diagnosis............................................................171 Charging Circuit Diagnosis - All Models (With Optional Alternator)....................171 Ignition Circuit Operation - X700.....................................................172 Ignition Circuit Electrical Schematic - X700..........................................173 Ignition Circuit Diagnosis - X700.....................................................175 Ignition Circuit Operation - X720/X724/X728...........................................177 Ignition Circuit Electrical Schematic - X720/X724/X728................................178 Ignition Circuit Diagnosis - X720/X724/X728 EFI.......................................180 PTO/RIP Circuit Operation - All Models................................................181 PTO/RIP Circuit Electrical Schematic - All Models.....................................183 PTO/RIP Circuit Diagnosis - All Models................................................185 Display Panel Circuit Operation - All Models..........................................189 A1 Display Panel Pin and Signal Location..............................................191 Lights Circuit Operation - All Models.................................................192 Lights Circuit Electrical Schematic - All Models......................................193 Lights Circuit Diagnosis - All Models.................................................194 Power Port Circuit Operation - All Models.............................................196 Power Port Circuit Electrical Schematic - All Models..................................196 Power Port Circuit Diagnosis - All Models.............................................197 Fuel Pump and Fuel Shutoff Circuit Operation - X700...................................198 Fuel Pump and Fuel Shutoff Circuit Electrical Schematic - X700........................199 Fuel Pump and Fuel Shutoff Circuit Diagnosis - X700...................................200 Fuel Pump and Fuel Injector Circuit Operation - X720/X724/X728........................201 Fuel Pump and Fuel Injector Circuit Electrical Schematic - X720/X724/X728.............202 Fuel Pump and Fuel Injector Circuit Diagnosis - X720/X724/X728........................204 Fuel Injection Sensor and Diagnostic Circuit Operation - X720/X724/X728...............207 Fuel Injection Sensor and Diagnostic Circuit Electrical Schematic - X720/X724/X728....210 Tests and Adjustments.....................................................................212 Common Circuit Tests..................................................................212 Ground Circuit Tests..................................................................212 Battery Voltage and Specific Gravity Test.............................................212 Battery - Charge......................................................................213 Battery - Load Test...................................................................214 Regulated Amperage and Voltage Test...................................................215 Regulated Voltage Test................................................................215 Unregulated Voltage Test (Standard Configuration).....................................216 Unregulated Voltage Test (Optional Auxiliary Alternator)..............................216 Stator Resistance Test (Standard Configuration).......................................217 Alternator Resistance Test (Optional Auxiliary Alternator)............................217 Starting Motor Condition..............................................................218 Starter Solenoid Test.................................................................218 Starting Motor Amp Draw Test..........................................................219 Starting Motor No-load Amperage and RPM Test..........................................219 Starting Motor Field Windings Test....................................................220 Starter Armature Test.................................................................220 Engine Coolant Temperature Sensor Test................................................220 Engine Oil Pressure Switch Test.......................................................221 Lights Switch Test....................................................................221 PTO/RIP Switch Test...................................................................222 Relay Test............................................................................222 Power Port Switch Test................................................................223 Key Switch Test.......................................................................223 Seat Switch Test......................................................................224 Brake Switch Test and Adjustment......................................................224 RIO Switch Test.......................................................................225 RIO Switch Adjustment.................................................................226 Fuse Test.............................................................................226 PTO Solenoid Test (Standard Front PTO)................................................226 PTO Switch Test (Optional Rear PTO Installed).........................................227 Fuel Shutoff Solenoid Test - X700.....................................................228 Diode Test............................................................................228 Fuel Tank Sensor Test.................................................................228 Fuel Injector Test - X720/X724/X728...................................................229 Fuel Injection Module Test - X720/X724/X728...........................................229 Vacuum Pressure Sensor Test - X720/X724/ X728.........................................230 Air Temperature Sensor Test - X720/X724/ X728.........................................231 Coolant Temperature Sensor Test - X720/ X724/X728.....................................231 Spark Plug Gap Test...................................................................232 Spark Plug Gap Adjustment.............................................................232 Ignition Coil Test....................................................................233 Spark Test............................................................................233 Repair....................................................................................234 Ignition Coil Replacement and Adjustment..............................................234 Stator Replacement....................................................................234 Alternator Removal, Inspection, and Installation (Optional)...........................235 Power Train - Hydrostatic.....................................................................237 Table of Contents.........................................................................237 Specifications............................................................................239 General Specifications................................................................239 Test And Adjustment Specifications....................................................239 Repair Specifications.................................................................239 Special or Essential Tools............................................................240 Other Materials.......................................................................240 Component Location........................................................................241 Hydrostatic Power Train...............................................................241 Final Drive (MFWD)....................................................................243 Front Axle Gear Case (MFWD)...........................................................244 Front Axle Assembly (MFWD)............................................................246 Rear PTO Gear Case Assembly...........................................................247 MFWD Output Shaft.....................................................................249 Theory of Operation.......................................................................251 Center Section and Directional Control Valves - Reverse System Operation..............251 Transaxle Oil Flow System Operation...................................................254 External Power Train System Operation.................................................257 Transaxle Internal System Operation...................................................258 Rear PTO Component Location and Operation - Optional..................................262 540 Rear PTO..........................................................................263 Diagnostics...............................................................................264 Hydrostatic Transmission Diagnosis....................................................264 Mid-PTO System Diagnosis..............................................................266 Transaxle Diagnosis...................................................................267 Hydrostatic Transmission Test.........................................................268 Mid-PTO System Test...................................................................269 Transaxle Test........................................................................270 Tests and Adjustments.....................................................................271 Hydraulic Oil Warm-Up Procedure.......................................................271 Charge Pump Pressure Test.............................................................271 Charge Pump Flow and Pressure Test - At Charge Pump...................................272 Mid-PTO Engagement Pressure and Brake Test............................................274 Transaxle Neutral Adjustment..........................................................275 Transaxle Control Linkage Adjustment..................................................276 Transaxle Linkage Full Forward Adjustment.............................................277 Cruise Control Linkage Check and Adjustment...........................................277 Repair....................................................................................279 Foot Control Linkage Removal and Installation.........................................279 Shift Lever Linkage (MFWD) Removal and Installation...................................282 Oil Cooler Removal and Installation...................................................283 Control Arm and Damper Removal and Installation.......................................284 Differential Lock Linkage Inspection..................................................285 Charge Pump Removal and Installation..................................................286 Charge Pump Disassembly and Assembly..................................................287 Directional Control Valves............................................................288 Hydrostatic Pressure Relief Valve (45 Loader) Installation............................288 Drive Shaft Removal and Installation..................................................289 PTO Solenoid Valve....................................................................290 PTO Relief Valve Removal and Installation.............................................291 PTO Relief Valve Disassembly, Inspection and Assembly.................................291 PTO Brake Removal and Installation....................................................292 PTO Brake Disassembly, Inspection and Assembly........................................293 PTO Drive Train (Mid-PTO) Removal and Installation....................................294 PTO Drive Train (Mid and Rear PTO) Removal and Installation...........................295 Rear PTO Removal and Installation.....................................................298 Transaxle Removal and Installation....................................................301 Differential Lock Shaft Disassembly and Assembly......................................302 Differential (2-Wheel Drive) Disassembly and Assembly.................................304 Differential (MFWD) Disassembly and Assembly..........................................305 PTO Clutch Disassembly, Inspection and Assembly.......................................306 MFWD Output Shaft Removal and Installation............................................308 Hydrostatic Transmission 2-WD and MFWD................................................310 Hydrostatic Pump Inspection...........................................................317 Transaxle Disassembly.................................................................318 Transaxle (Right Cover) Disassembly and Assembly......................................320 Transaxle Case Inspection.............................................................321 Transaxle Assembly....................................................................321 Rear Axle Assembly (Two Wheel Steer Models) Removal and Installation..................323 Rear Axle Assembly (Two Wheel Steer Models) Disassembly and Assembly..................323 Rear Axle Assembly (All Wheel Steer) Removal and Installation.........................325 Rear Axle Assembly (All Wheel Steer) Disassembly and Assembly.........................326 Knuckle Assembly (All Wheel Steer) Removal and Installation...........................327 Knuckle Housing Disassembly and Assembly..............................................327 Final Drive Cover Removal and Installation - (MFWD)...................................328 Final Drive Housing Removal and Installation - (MFWD).................................330 Spindle Housing - (MFWD)..............................................................332 Drive Shaft Removal and Installation - (MFWD).........................................333 Mechanical Front Wheel Drive Removal and Installation - (MFWD)........................333 Differential Input Housing - (MFWD)...................................................335 Front Axle Housing Disassembly and Assembly...........................................336 Hydraulics....................................................................................339 Table of Contents.........................................................................339 Specifications............................................................................341 General Specifications................................................................341 Test and Adjustment Specifications....................................................341 Repair Torque Specifications..........................................................342 Special or Essential Tools............................................................342 Other Materials.......................................................................342 Schematics................................................................................343 Hydraulic Schematic - Power Train.....................................................343 Component Location........................................................................344 Hydraulic System......................................................................344 Operation and Diagnostics.................................................................345 Hydraulic System......................................................................345 Hydraulic Control Valve Operation - Neutral...........................................346 Hydraulic Control Valve Operation - Raise.............................................347 Hydraulic Control Valve Operation - Float.............................................348 Hydraulic Control Valve Operation - Regen.............................................349 Lift Cylinder Shut-off Valve - Optional...............................................350 Hydraulic Diagnostics.................................................................350 Preliminary Hydraulic System Inspection...............................................353 Hydraulic System Tests................................................................354 Tests and Adjustments.....................................................................355 Hydraulic Oil Warm-Up Procedure.......................................................355 Charge Pump Pressure and Flow Test at Couplers........................................355 Charge Pump Pressure Test.............................................................356 Lift Cylinder Leakage Test............................................................357 Control Valve Leakage Test............................................................358 Repair....................................................................................359 Lift Cylinder Removal and Installation................................................359 Hydraulic Control Valve Removal and Installation......................................359 Hydraulic Control Valve...............................................................359 Hydraulic Control Levers and Linkage..................................................362 Steering......................................................................................363 Table of Contents.........................................................................363 Specifications............................................................................365 General Specifications................................................................365 Test and Adjustment Specifications....................................................365 Repair Specifications.................................................................365 Special or Essential Tools............................................................365 Component Location........................................................................366 Steering Components - Front Wheel Steer...............................................366 Steering Components - All Wheel Steer.................................................367 Steering Components - All Wheel Steer Rear Axle.......................................368 Theory of Operation.......................................................................369 Steering System Operation.............................................................369 Steering Valve Operation - Neutral....................................................370 Steering Valve Operation - Turning....................................................371 Steering Valve Operation - Manual.....................................................372 Diagnostics...............................................................................373 Steering Diagnosis....................................................................373 Steering System Tests.................................................................374 Steering Link Checks..................................................................375 Tests and Adjustments.....................................................................376 Hydraulic Oil Warm-Up Procedure.......................................................376 Steering Valve and Cylinder Leakage Test..............................................376 Toe-In Adjustment Front Wheels........................................................377 Toe-In Adjustment All Wheel Steering..................................................377 Repair....................................................................................379 Steering Column Removal and Installation..............................................379 Steering Valve Removal and Installation...............................................380 Steering Valve Disassembly and Assembly...............................................381 Steering Cylinder Removal and Installation............................................384 Front Axle Removal and Installation...................................................384 Front Axle Disassembly and Assembly...................................................385 Rear Steering Linkage - All Wheel Steering............................................387 Steering Intermediate Linkage - AWS...................................................389 Front and Rear Pivots.................................................................390 Brakes........................................................................................393 Table of Contents.........................................................................393 Specifications............................................................................395 General Specifications................................................................395 Test and Adjustment Specifications....................................................395 Repair Specifications.................................................................395 Special or Essential Tools............................................................395 Other Materials.......................................................................395 Component Location........................................................................396 Brake System Component Location.......................................................396 Brake/Differential Linkage (Exploded).................................................397 Theory of Operation.......................................................................398 Brake System Operation................................................................398 Diagnostics...............................................................................399 Brakes................................................................................399 Tests and Adjustments.....................................................................401 Brake/Differential Linkage Adjustment.................................................401 Repair....................................................................................403 Brake/Differential Linkage Removal and Installation...................................403 Brakes Removal and Installation.......................................................405 Attachments...................................................................................407 Table of Contents.........................................................................407 Specifications............................................................................409 General Specifications................................................................409 Torque and Repair Specifications......................................................411 Diagnostics...............................................................................413 48, 54 and 62-Inch Mower Deck Diagnosis...............................................413 45 Loader Diagnosis...................................................................416 Tests and Adjustments.....................................................................418 Adjusting Cutting Height (48C, 54C, and 62C Mower Deck)...............................418 Adjusting Mower Deck Wheels...........................................................418 Mower Deck Level Check and Adjustment.................................................418 Adjusting Mower Level Side-to-Side....................................................419 Adjusting Mower Level Front-to-Rear...................................................420 Adjusting Latch Rod...................................................................420 Cylinder Leakage Test.................................................................421 45 Loader Lubrication.................................................................421 Repair....................................................................................422 Cleaning Grass and Debris From Machine................................................422 Mower Deck Belt and Shield Removal and Installation...................................422 Mower Deck Blade Removal and Installation.............................................424 Mower Deck Blade - Sharpen............................................................424 Mower Deck Blade - Balance............................................................425 48C Mower Deck Spindle Removal and Installation.......................................425 Idlers................................................................................427 Jacksheave............................................................................428 54C Mower Deck Spindle Removal and Installation.......................................428 Jacksheave............................................................................430 Idlers................................................................................431 62C Mower Deck Spindle Removal and Installation.......................................431 Mower Deck Drive Shaft Removal and Installation.......................................433 Mower Deck Drive Shaft Repair.........................................................434 Mower Deck Gearbox Removal and Installation...........................................435 Mower Deck Gearbox Repair.............................................................437 General Information.......................................................................438 Reading Electrical Schematics.........................................................438 Operation and Diagnostics.............................................................439 Diagnostic Information................................................................439 Wire Color Abbreviation Chart.........................................................439 Common Circuit Tests..................................................................440 Conductors For 12 Volt Circuits.......................................................440 Identification Numbers....................................................................441 Generator.............................................................................441 Alternator............................................................................441 Component Location........................................................................442 Generator.............................................................................442 Alternator Components.................................................................443 Control Panel.........................................................................444 Generator Gear Box Components.........................................................445 Schematics and Harnesses..................................................................446 Wiring Harness Legend.................................................................446 Connectors............................................................................446 Standard Electrical Schematic.........................................................447 Operation and Diagnostics.................................................................449 Generator Circuit Operation...........................................................449 Generator Circuit Diagnosis...........................................................449 Tests and Adjustments.....................................................................451 Generator Stator Test.................................................................451 Generator Rotor Test..................................................................452 Ground Fault Circuit Interrupter (GFCI) Checks........................................452 Generator Ground Test.................................................................453 Repair....................................................................................453 Stator Excitation Field Restoration...................................................453 PTO Shield Removal and Installation...................................................454 Generator Removal and Disassembly.....................................................454 Gear Case Removal and Disassembly.....................................................454 Rotor Bearing Removal and Installation................................................456 Rotor Fan Removal and Installation....................................................456 Generator Assembly and Installation...................................................457 Control Panel Removal and Installation................................................458 Miscellaneous.................................................................................459 Table of Contents.........................................................................459 Specifications............................................................................461 Repair Specifications.................................................................461 Other Materials.......................................................................461 Repair....................................................................................462 Headlights Adjustment.................................................................462 Hood Removal and Installation.........................................................462 Fender Deck Removal and Installation..................................................463 Foot Deck Removal and Installation....................................................464 Fuel Tank Removal and Installation....................................................464 Fuel Pump/Fuel Gauge Sensor Removal and Installation..................................465 Rear Wheel Removal and Installation...................................................466 Front Wheel Removal and Installation..................................................466 Instrument Panel Removal and Installation.............................................467 Lift Linkage Removal and Installation.................................................468 Lift Linkage Adjustment:..............................................................469 Deck Height Stop Removal and Installation.............................................469 Index.........................................................................................471 Numerics..................................................................................471 A.........................................................................................471 B.........................................................................................471 C.........................................................................................471 D.........................................................................................472 E.........................................................................................472 F.........................................................................................474 G.........................................................................................474 H.........................................................................................474 I.........................................................................................475 K.........................................................................................475 L.........................................................................................475 M.........................................................................................475 O.........................................................................................475 P.........................................................................................476 R.........................................................................................476 S.........................................................................................476 T.........................................................................................477 U.........................................................................................478 V.........................................................................................478 W.........................................................................................478
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