Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . 3
Hydraulic Hoses . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hydraulic Fitting Installation . . . . . . . . . . . . . . . . 3
HYDRAULIC FLOW DIAGRAMS . . . . . . . . . . . . . . . 5
Traction, No. 1 Position . . . . . . . . . . . . . . . . . . . . 5
Traction, No. 2 Position . . . . . . . . . . . . . . . . . . . . 6
Traction, Reverse Position . . . . . . . . . . . . . . . . . 7
Reel Drive, Mowing Operation . . . . . . . . . . . . . . 8
Reel Drive, Lower Cutting Units . . . . . . . . . . . . . 9
Reel Drive, Raising Cutting Units . . . . . . . . . . . 10
Power Steering, R.H. Turn . . . . . . . . . . . . . . . . . 11
HYDRAULIC SCHEMATIC. . . . . . . . . . . . . . . . . . . 12
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . 13
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 16
Slow Groundspeed in All Traction Selections . . 17
Slow or No Ground Speed in No. 1
and Reverse, No. 2 Appears Normal . . . . . . . . 18
No Increase in Speed From No. 1 to No. 2 . . . . 19
One or More Cutting Units Slow
or No Reel Drive Action . . . . . . . . . . . . . . . . . . . 20
All Reels Slow or Will Not Turn . . . . . . . . . . . . . 21
Mow Pedal Won’t Stay Engaged -
Reels Slow Down or Stop . . . . . . . . . . . . . . . . . 22
Cutting Unit(s) Drop During Transport. . . . . . . . 23
Cutting Units Lift Too Slowly or Not At All . . . . . 24
Lift Pedal Binding . . . . . . . . . . . . . . . . . . . . . . . 25
Center (#1) Cutting Unit
Operates In Raised Position . . . . . . . . . . . . . . . 25
Center (#1) Cutting Unit Drops Before
Front Cutting Units or Drops Too Fast. . . . . . . . 25
Steering Loss, Steering Wander or Free Play. . 26
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Test Hook Up No. 1, Traction Pump
Flow and Traction Relief Setting . . . . . . . . . . . . 28
Test Hook Up No. 2, Traction
Motors Mechanical Drag, Valve
Bank Leakage,Traction Motors Efficiency . . . . . 28
Test Hook Up No. 3,
Reel Drive Pump Efficiency . . . . . . . . . . . . . . . . 32
Test Hook Up No. 4, Reel Drive Motor Flow,
Reel Drive Relief Setting, Reel Motor Efficiency 33
Test Hook Up No. 5, Steering Pump
Flow and Steering Pump Relief Setting. . . . . . . 35
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Lift and Mow Pedal Height Adjustment . . . . . . . 36
Traction Pedal Adjustment. . . . . . . . . . . . . . . . . 37
Rear Camshaft Adjustment . . . . . . . . . . . . . . . . 38
REPAIRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Reel Motor Removal and Installation. . . . . . . . . 39
Reel Motor Shaft Seal Replacement . . . . . . . . . 39
Reel Motor Repair . . . . . . . . . . . . . . . . . . . . . . . 40
Pump Removal and Installation. . . . . . . . . . . . . 42
Pump Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Control Valve Removal and Installation. . . . . . . 44
Relief Valve Removal and Installation . . . . . . . . 45
Control Valve Spool Seal Replacement. . . . . . . 46
Control Valve Internal Seal Replacement . . . . . 47
Control Valve No. 1 Spool Detent Replacement 48
Control Valve No. 4 Spool Detent Replacement 49
Lift Cylinder Removal and Installation . . . . . . . . 50
Lift Cylinder Repair . . . . . . . . . . . . . . . . . . . . . . 52
Wheel Motor Removal and Installation . . . . . . . 54
Wheel Motor Repair. . . . . . . . . . . . . . . . . . . . . . 55
Steering Cylinder Removal and Installation. . . . 58
Steering Cylinder Repair . . . . . . . . . . . . . . . . . . 59
Steering Control Unit Removal and Installation. 60
Steering Control Unit Repair . . . . . . . . . . . . . . . 61
Greensmaster
®
3100
Page 4 - 1
Table of Contents
Summary of Contents for GREENSMASTER 3100
Page 2: ...This page is intentionally blank ...
Page 4: ...This page is intentionally blank ...
Page 8: ...Safety Instructions Page 1 4 Greensmaster 3100 ...
Page 12: ...This page is intentionally blank ...
Page 18: ...Engine Removal and Installation Page 3 6 Greensmaster 3100 ...
Page 34: ...Greensmaster 3100 Page 4 12 4 Hydraulic Schematics Rev E This page is blank ...
Page 69: ...This page is intentionally blank ...
Page 100: ...Repairs Page 4 72 Greensmaster 3100 ...
Page 110: ...This page is intentionally blank ...
Page 130: ...Greensmaster 3100 Page 6 6 Repairs Rev B ...
Page 132: ......
Page 133: ......
Page 134: ......
Page 135: ......
Page 136: ......
Page 137: ......
Page 138: ...Use Loctite 271 on spline nut Rev C ...
Page 139: ......
Page 140: ......
Page 141: ......
Page 142: ......
Page 143: ......
Page 144: ......
Page 145: ......
Page 146: ......
Page 147: ......
Page 148: ......
Page 149: ...Use Loctite 271 on spline nut Rev C ...
Page 150: ......
Page 152: ......
Page 153: ......
Page 154: ......
Page 155: ......
Page 156: ......
Page 157: ......
Page 158: ......
Page 159: ......
Page 160: ...Use Loctite 271 on spline nut threads Rev C ...
Page 161: ......
Page 162: ......
Page 163: ......
Page 164: ......
Page 165: ......
Page 166: ......
Page 167: ......
Page 168: ......
Page 169: ......
Page 170: ......
Page 171: ......
Page 172: ......
Page 173: ......
Page 174: ...Use Loctite 271 on spline nut threads Rev C ...
Page 175: ......
Page 176: ......
Page 178: ......
Page 179: ......
Page 180: ......
Page 181: ......
Page 182: ......
Page 183: ......
Page 184: ......
Page 185: ......
Page 186: ......
Page 187: ......
Page 188: ...Use Loctite 271 on spline nut threads Rev C ...
Page 189: ......
Page 190: ......
Page 191: ......
Page 192: ......
Page 193: ......
Page 194: ......
Page 195: ......
Page 196: ......
Page 197: ......
Page 198: ......
Page 199: ......
Page 200: ......
Page 201: ......
Page 202: ......
Page 203: ...Use Loctite 271 on spline nut threads Rev C ...
Page 204: ......
Page 205: ......
Page 206: ......
Page 207: ......
Page 208: ......
Page 209: ......
Page 210: ...This page is intentionally blank ...
Page 233: ...This page is intentionally blank ...