Toro Groundmaster 31900, Service Manual

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Table of Contents
Preface ................................................................................................................ 5
Chapter 1: Safety ............................................................................................ 1–1
Safety Instructions ....................................................................................... 1–2
Jacking Instructions ..................................................................................... 1–6
Safety and Instructional Decals .................................................................... 1–7
Chapter 2: Specifications and Maintenance .................................................... 2–1
Specifications ............................................................................................... 2–2
Torque Specifications ................................................................................... 2–7
Shop Supplies ............................................................................................ 2–13
Special Tools .............................................................................................. 2–15
Chapter 3: Troubleshooting ............................................................................. 3–1
GEARS – The Systematic Approach to Defining, Diagnosing and Solving
Problems ...................................................................................................... 3–2
Operator Advisories ...................................................................................... 3–3
Machine and Engine Faults........................................................................... 3–5
Using the TDM Display/Controller Screens for Troubleshooting .................. 3–12
Troubleshooting – Hydraulic ....................................................................... 3–14
General Hydraulic System Problems .......................................................... 3–15
Traction System Problems .......................................................................... 3–17
Steering System Problems ......................................................................... 3–19
Cutting Unit (or attachment) Lift/Lower Problems ........................................ 3–20
Troubleshooting – Electrical........................................................................ 3–21
Starting Problems ....................................................................................... 3–22
General Run and Transport Problems......................................................... 3–24
Cutting Unit (or attachment) Problems ........................................................ 3–25
Factors That Can Affect Quality of Cut ........................................................ 3–26
Chapter 4: Engine ........................................................................................... 4–1
General Information ..................................................................................... 4–2
Service and Repairs ..................................................................................... 4–9
Chapter 5: Hydraulic System........................................................................... 5–1
General Information ..................................................................................... 5–3
Hydraulic Schematics ................................................................................. 5–12
Hydraulic Flow Diagrams ............................................................................ 5–13
Testing the Hydraulic System ...................................................................... 5–22
Adjustments ............................................................................................... 5–50
Service and Repairs ................................................................................... 5–52
Chapter 6: Electrical System ........................................................................... 6–1
General Information ..................................................................................... 6–2
Electrical Schematics and Wire Harness Drawings/Diagrams....................... 6–6
Electrical System Quick Checks.................................................................... 6–7
Testing the Electrical Components ................................................................ 6–9
Service and Repairs ................................................................................... 6–61
Chapter 7: Chassis.......................................................................................... 7–1
General Information ..................................................................................... 7–2
Adjustments ................................................................................................. 7–3
Service and Repairs ..................................................................................... 7–5
Chapter 8: Cutting Units .................................................................................. 8–1
General Information ..................................................................................... 8–2
Service and Repairs ..................................................................................... 8–3
Chapter 9: Operator Cab ................................................................................. 9–1
General Information ..................................................................................... 9–2
Adjustments ................................................................................................. 9–7
Service and Repairs ..................................................................................... 9–9
Appendix A ......................................................................................................A–1
Electrical Drawing Designations....................................................................A–2
Hydraulic Schematic – 3200 2WD.................................................................A–3
Groundsmaster ® 3200, 3300 and 3310 Page 7 Preface
19240SL Rev A