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Chapter 4
Hydraulic System
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . 3
Hydraulic Hose and Fitting Information . . . . . . . . 3
Pushing or Towing . . . . . . . . . . . . . . . . . . . . . . . . 5
HYDRAULIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . 6
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hydraulic Tester. . . . . . . . . . . . . . . . . . . . . . . . . . 7
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . 8
Transmission Operates in One Direction Only . . 8
System Operates Hot, Looses Power or
Will Not Operate in Either Direction
. . . . . . . . . 8
TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Hydraulic Tests . . . . . . . . . . . . . . . . . . . . . . . . . 10
ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Traction Cable Adjustment . . . . . . . . . . . . . . . . . 11
Speed Control Adjustment. . . . . . . . . . . . . . . . . 11
Transmission Neutral Adjustment . . . . . . . . . . . 12
Aeration Speed Adjustment . . . . . . . . . . . . . . . . 12
Pump Drive Belt Adjustment . . . . . . . . . . . . . . . 13
REPAIRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pump Drive Belt Replacement . . . . . . . . . . . . . 14
Hydraulic Pump Removal and Installation. . . . . 15
Pump Shaft Seal Replacement . . . . . . . . . . . . 16
Pump Charge Check Valve Service . . . . . . . . . 17
Pump Bypass Valve Service . . . . . . . . . . . . . . . 17
Charge Pump Service . . . . . . . . . . . . . . . . . . . . 18
Major Pump Repair . . . . . . . . . . . . . . . . . . . . . . 18
Wheel Motor Removal and Installation . . . . . . . 22
Wheel Motor Repair. . . . . . . . . . . . . . . . . . . . . . 23
Hydroject 3010 Page 4 - 1 Table of Contents