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This page is intentionally blank. Kubota Diesel Engine Page 3 - 18 Groundsmaster 4100--D
Chapter 4 Hydraulic System Table of Contents SPECIFICATIONS ............................. 2 GENERAL INFORMATION ..................... 3 Operator’s Manual .......................... 3 Towing Traction Unit ......................... 3 Check Hydraulic Fluid ....................... 3 Hydraulic Hoses ............................ 4 Hydraulic Hose and Tube Installation .......... 5 Hydraulic Fitting Installation ................... 6 HYDRAULIC SCHEMATIC ..................... 8 HYDRAULIC FLOW DIAGRAMS ............... 10 Traction Circuit: 4WD (Mow) ................. 10 Traction Circuit: Transport (2WD) ............. 12 Lower Cutting Deck ........................ 14 Raise Cutting Deck ......................... 16 Mow Circuit ............................... 18 Mow Circuit Cutting Deck Blade Braking ....... 20 Steering Circuit ............................ 22 Engine Cooling Fan Circuit .................. 24 SPECIAL TOOLS ............................ 26 TROUBLESHOOTING ........................ 28 TESTING ................................... 31 Traction Circuit Charge Pressure ............. 32 Traction Circuit Relief Pressure .............. 34 Counterbalance Pressure ................... 36 Rear Traction Circuit (RV) Relief Pressure ..... 38 Traction Circuit Reducing Valve (PR) Pressure ................................ 40 Cutting Deck Circuit Pressure ................ 42 PTO Relief Pressure ........................ 44 Cutting Deck Gear Pump Flow ............... 46 Cutting Deck Motor Case Drain Leakage ...... 48 Steering Circuit Relief Pressure .............. 50 Lift/Lower Circuit Relief Pressure ............. 52 Steering and Lift/Lower Gear Pump Flow ...... 54 Engine Cooling Fan Circuit .................. 56 Engine Cooling Fan Circuit Gear Pump Flow ... 58 ADJUSTMENTS ............................. 60 Adjust Cutting Deck Flow Control Valve ....... 60 SERVICE AND REPAIRS ..................... 61 General Pre<strong>caution</strong>s for Removing and Installing Hydraulic System Components .... 61 Check Hydraulic Lines and Hoses ............ 61 Flush Hydraulic System ..................... 62 Charge Hydraulic System ................... 63 Hydraulic Reservoir ........................ 64 Hydraulic Oil Cooler ........................ 66 Gear Pump ................................ 68 Gear Pump Service ......................... 70 Traction Circuit ............................. 72 Piston (Traction) Pump ...................... 74 Piston (Traction) Pump Service .............. 76 Rear Axle Motor ........................... 78 Front Wheel Motors ........................ 80 Rear Axle and Front Wheel Motor Service ..... 82 4WD Manifold ............................. 84 4WD Manifold Service ...................... 86 Filter Manifold ............................. 88 Filter Manifold Service ...................... 90 Steering and Cooling Fan Circuits ............ 92 Steering Valve ............................. 94 Steering Valve Service ...................... 96 Steering Cylinder ........................... 98 Steering Cylinder Service .................. 100 Engine Cooling Fan Motor .................. 102 Engine Cooling Fan Motor Service ........... 104 Fan Drive Manifold ........................ 108 Fan Drive Manifold Service ................. 110 Mow Circuit .............................. 112 Cutting Deck Motor ........................ 113 Cutting Deck Motor Service ................. 114 Deck Manifolds ........................... 118 Deck Manifold Service ..................... 120 Lift/Lower Circuit .......................... 122 Lift/Lower Control Valve .................... 124 Lift/Lower Control Valve Service ............. 126 Front Deck Lift Cylinder .................... 128 Wing Deck Lift Cylinder .................... 130 Deck Lift Cylinder Service .................. 132 Counterbalance Manifold ................... 134 Counterbalance Manifold Service ............ 136 EATON MODEL 72400 SERVO CONTROLLED PIS- TON PUMP REPAIR INFORMATION EATON MODEL 74318 and 74348 PISTON MOTORS: FIXED DISPLACEMENT, VALVE PLATE DESIGN REPAIR INFORMATION Hydraulic System Groundsmaster 4100--D Page 4 - 1 Hydraulic System
Page 1 and 2: Part No. 08162SL (Rev. A) Service M
Page 3 and 4: Table Of Contents Chapter 1 - Safet
Page 5 and 6: Table of Contents GENERAL SAFETY IN
Page 7 and 8: Maintenance and Service 1. Before s
Page 9 and 10: Safety and Instruction Decals Numer
Page 11 and 12: Chapter 2 Table of Contents Product
Page 13 and 14: Torque Specifications Recommended f
Page 15 and 16: Standard Torque for Dry, Zinc Plate
Page 17 and 18: Chapter 3 Kubota Diesel Engine Tabl
Page 19 and 20: Specifications Item Make / Designat
Page 21 and 22: Removal (Fig. 1) 1. Park machine on
Page 23 and 24: Removal (Fig. 5) CAUTION B The muff
Page 25 and 26: DANGER Because diesel fuel is highl
Page 27 and 28: Removal (Fig. 8) 1. Park machine on
Page 29 and 30: Engine Removal (Fig. 9) 1. Park mac
Page 31 and 32: 3. Slowly lower engine into the mac
Page 33: Coupler Removal (Fig. 16) NOTE: The
Page 37 and 38: General Information Operator’s Ma
Page 39 and 40: Hydraulic Hose and Tube Installatio
Page 41 and 42: Adjustable Fitting (Fig. 8) 1. Make
Page 43 and 44: Hydraulic System This page is inten
Page 45 and 46: Traction Circuit: 4WD (Mow) The tra
Page 47 and 48: Traction Circuit: Transport (2WD) T
Page 49 and 50: Lower Cutting Deck A four section g
Page 51 and 52: Raise Cutting Deck A four section g
Page 53 and 54: Mow Circuit Hydraulic flow for the
Page 55 and 56: Hydraulic System This page is inten
Page 57 and 58: Steering Circuit A four section gea
Page 59 and 60: Engine Cooling Fan Circuit A four s
Page 61 and 62: Hydraulic Test Fitting Kit This kit
Page 63 and 64: Problem Traction power is lost or u
Page 65 and 66: Testing The most effective method f
Page 67 and 68: Procedure for Traction Circuit Char
Page 69 and 70: Procedure for Traction Circuit Reli
Page 71 and 72: Procedure for Counterbalance Pressu
Page 73 and 74: Procedure for Rear Traction Circuit
Page 75 and 76: Procedure for Traction Circuit Redu
Page 77 and 78: Procedure for Cutting Deck Circuit
Page 79 and 80: Procedure for Cutting Deck Manifold
Page 81 and 82: Procedure for Cutting Deck Gear Pum
Page 83 and 84: Procedure for Cutting Deck Motor Ca
Page 85 and 86:
Procedure for Steering Circuit Reli
Page 87 and 88:
Procedure for Lift/Lower Circuit Re
Page 89 and 90:
Procedure for Steering and Lift/Low
Page 91 and 92:
Procedure for Engine Cooling Fan Ci
Page 93 and 94:
Procedure for Engine Cooling Fan Ci
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Service and Repairs General Precaut
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Charge Hydraulic System NOTE: When
Page 99 and 100:
NOTE: The front frame needs to be l
Page 101 and 102:
Removal (Fig. 48) CAUTION The radia
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Removal (Fig 49) 1. Park machine on
Page 105 and 106:
IMPORTANT: Use caution when clampin
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Hydraulic System This page is inten
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Removal (Fig. 53) 1. Park machine o
Page 111 and 112:
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Page 115 and 116:
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Page 119 and 120:
Removal (Fig. 59) NOTE: The ports o
Page 121 and 122:
4WD Manifold Service (Fig. 60) 1. M
Page 123 and 124:
Removal (Fig. 61) 1. Read the Gener
Page 125 and 126:
Filter Manifold Service (Fig. 62) F
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Page 131 and 132:
CAUTION The centering springs are u
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Disassembly (Fig. 68) 1. Pump oil o
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8. Remove and discard back--up gask
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Page 145 and 146:
Fan Drive Manifold Service (Fig. 76
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Cutting Deck Motor Removal 1. Park
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IMPORTANT: Mark the relative positi
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Removal (Fig. 85) NOTE: The ports o
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PTO Manifold Service (Fig. 86) For
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Disassembly (Fig. 89) 1. Plug all p
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Disassembly (Figs. 92 and 93) 1. Re
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Chapter 5 Electrical System Table o
Page 173 and 174:
Special Tools Order special tools f
Page 175 and 176:
Troubleshooting CAUTION Remove all
Page 177 and 178:
Cutting Deck Operating Problems The
Page 179 and 180:
Adjustments Wing Deck Position Swit
Page 181 and 182:
Component Testing For accurate resi
Page 183 and 184:
Warning Lights Engine Oil Pressure
Page 185 and 186:
Transport / 4WD Switch The transpor
Page 187 and 188:
Seat Switch The seat switch is norm
Page 189 and 190:
Hour Meter The hour meter is locate
Page 191 and 192:
Start, Engine Shutdown, Seat, Alarm
Page 193 and 194:
TEC -5002 Controller Groundsmaster
Page 195 and 196:
Fuel Gauge The fuel gauge can be te
Page 197 and 198:
Glow Controller The glow controller
Page 199 and 200:
Dual Temperature Switch The dual te
Page 201 and 202:
Traction Neutral Switch The tractio
Page 203 and 204:
Fusible Links The Groundsmaster 410
Page 205 and 206:
Cutting Deck Raise and Lower Switch
Page 207 and 208:
Service and Repairs NOTE: For engin
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2. Conduct a hydrometer test of the
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Chapter 6 Axles, Planetaries and Br
Page 213 and 214:
General Information Operator’s Ma
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3. Chock rear wheels and jack up fr
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This page is intentionally blank. A
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Removal (Fig. 6) 1. Park machine on
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NOTE: The planetary wheel drive ass
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This page is intentionally blank. A
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8. Remove cap screw and flange nut
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Bevel Gear Case and Axle Case The f
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Bevel Gear Case and Axle Case Insta
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9. Remove the bevel gear case/axle
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Axle Shafts The following procedure
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7. Secure the lock nut with the sta
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Differential Gear Inspection 1. Mea
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Pinion Gear to Ring Gear Engagement
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Chapter 7 Chassis Table of Contents
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Disassembly (Fig. 1) 1. Park machin
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CAUTION When changing attachments,
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Removal (Fig. 5) 1. Park machine on
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Disassembly (Fig. 8) 1. Disassemble
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NOTE: Most of the seat suspension c
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Removal 1. Park machine on a level
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Chapter 8 Cutting Deck Table of Con
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General Information CAUTION Never i
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This page is intentionally blank. C
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Removal (Fig. 1) 1. Position machin
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Removal (Fig. 6) 1. Position machin
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Cutting Deck Link Service Disassemb
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Installation (Fig. 13) 1. Position
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2. Install outer bearing spacer int
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Disassembly (Fig. 22) 1. Park machi
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Chapter 9 Foldout Drawings Table of
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CENTER DECK MANIFOLD COUNTERBALANCE
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CONTINUES FROM SHEET 1 CONTINUES FR
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CONTINUES TO SHEET 2 CONTINUES TO S
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CONTINUES TO SHEET 2 WHEN THE PTO S
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CONTINUES TO SHEET 2 CONTINUES TO S
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YELLOW GRAY YELLOW/BLACK VIOLET WHI
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FLOW DIVIDER SOLENOID Groundsmaster
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(STARTER) (STARTER) (STARTER) Groun
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BLUE GRAY VIOLET BLACK YELLOW GRAY
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