Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual

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 Precautions for Removing and
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
Installing Hydraulic System Components  . . . . 61
Check Hydraulic Lines and Hoses  . . . . . . . . . . . . 61
Flush Hydraulic System  . . . . . . . . . . . . . . . . . . . . . 62
Groundsmaster 4100--D
Page 4 -- 1
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 298 pages
Document TypeService Manual
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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One thought on “Toro 08162SL Model 30413 Groundsmaster 4100 D Service Manual”

  1. At only 700mm wide the Mini Dumper is even at home on tight access
    sites. No need to grunt, groan, and force the
    mower about the yard. The US will be getting a revised 2011 Jeep Wrangler but the diesel option will not be offered in the United States.

    Reply

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