John Deere Omar287594 — Contents

Contents Page Page Hydraulics and Selective Control Valves Connecting Hydraulic Hoses ..............................60­1 Disconnecting Hydraulic Hoses..........................60­2 Determining Total Flow Demand ........................60­3 Adjusting SCV Flow Rate ...................................60­4 Using Six Position SCV Control Levers..............60­5 SCV Lever—Neutral Position .............................60­5 SCV Lever—Extend and Extend Detent Position...............................................60­6 SCV Lever—Retract and Retract Detent Position...............................................60­6 SCV Lever—Float Position.................................60­7 Operator Presence Sensor.................................60­7 Adjusting Timed Detent ......................................60­8 Using External Rear PTO Pre Selector Switch (If Equipped).......................................70­8 Using Correct Engine Speed..............................70­9 Using Correct PTO Shaft..................................70­10 Changing PTO Stub Shaft................................70­11 Performance Ballasting General Ballasting Information ...........................75­1 General Guidelines for Tractor Weight Based on PTO Kilowatt ..................................75­2 General Weight Split Guidelines.........................75­2 Ballast Types ......................................................75­3 Ballasting Suggestions for Specific Types of Implements......................................75­7 Determining Ballasted Tractor Weight, Weight Split, Axle Loads and Required Tire Inflation Pressures...................75­9 Unballasted Tractor Weight Chart ....................75­11 Maximum Load Per Wheel ...............................75­12 Worksheet to Calculate Ballast Changes .........75­12 Power Hop........................................................75­13 QUIK­TATCH Weights ......................................75­13 Rear Wheel Weights.........................................75­14 Liquid Ballast ....................................................75­15 Implement Codes .............................................75­16 Weight Added to Rear Axle with Hitch Mounted Implements....................................75­17 Wheel Slip ........................................................75­18 Remote Hydraulic Connections Hydraulic Component Identification....................65­1 Using Load­Sensing Hydraulic System—Power­Beyond................................65­1 Examples Using Load­Sensing Hydraulic System—Power­Beyond................65­2 Using Hydraulic Spray Pumps............................65­3 Implement Connection, Example 1—Pressure Control Valve Applications (Grain Drills or Air Seeders with Constant Down­Pressure System) ................................65­4 Implement Connection, Example 2—Motor Application Using Motor Case Drain .....................................................65­5 Implement Connection, Example 3—Closed Center Valve with Pump at High Pressure ............................................65­6 Implement Connection, Example 4—Planter with Vacuum Motor and Return Line to SCV Using Motor Return Tip.......................................................65­7 Implement Connection, Example 5—Planter with Vacuum Motor, Return Line to Motor Return and Lift Assist ...65­8 Implement Connection, Example 6—Planter with Vacuum Motor and Return Line to Motor Return ..........................65­9 Using Hydraulic Motor Return ..........................65­10 Using Hydraulic Motor Case Drain (Sump) ......65­10 Using Implement Requiring Large Volumes of Oil..............................................65­11 Front Wheels, Tires, and Treads Service Tires Safely............................................80­1 Tire Combinations ..............................................80­2 Tire Combination Tables.....................................80­3 Tire Inflation Pressures.......................................80­4 Recommended Tire Pressures (Group 42) ........80­5 Recommended Tire Pressures (Group 43) ........80­6 Recommended Pressures—Group 44 ...............80­7 MFWD and Independent Link Suspension Front Wheel Bolts Tightening..................................................80­8 MFWD Toe­In Check ..........................................80­9 1300 MFWD Axle Toe­In Adjustment .................80­9 1500 MFWD Axle Toe­In Adjustment ...............80­10 Independent Link Suspension Adjust Toe­In ....80­10 MFWD Steering Stop Settings .........................80­11 Independent Link Suspension Steering Stop Settings.............................................................80­12 Eight Position Wheels Settings.........................80­13 MFWD Fender Settings ...................................80­15 Independent Link Suspension Fender Settings .........................................................................80­15 MFWD and Independent Link Suspension Front Tire, Fender and Steering Stop Settings Example ..................80­16 1300 MFWD Front Tire, Fender and Steering Stop Settings .................................80­17 1500 MFWD Front Tire, Fender and Steering Stop Settings .................................80­18 Drawbar and PTO Observing Drawbar Load Limitations .................70­1 Adjusting Drawbar Length ..................................70­2 Adjusting Drawbar Height...................................70­3 Adjusting Drawbar Side­to­Side .........................70­3 Drawbar..............................................................70­4 Attaching PTO­Driven Implement.......................70­5 Using PTO Shield...............................................70­6 Operating Rear PTO...........................................70­7 Continued on next page iii 122208 PN=3