Description
John Deere 4720 Forage Harvester Technical Manual (TM1312)
John Deere 4720 Forage Harvester INDEX:
SECTION IO—GENERAL
Group 05—Safety
Group IO–—Specifications
Group 15—Lubrication
Group 20—Diagnosing Malfunctions
SECTION 20—DRlVE TRAIN
Group 05—-Tractor Driveline
Group IO—Reverse Drive Gear Case
Group 15—Tongue
Group 20—Rear Universal Drive
Group 25—Bevel Gear Case
Group 30—Feed Roll Drive Gear Case
Group 35—TroubIeshooting
SECTION 30—HYDRAULlCS
Group 05—General Information, Diagnosis
and Tests
Group IO—Eiectrohydraulic Valves
Group 15—Tongue Positioning Cylinder
Group 20—Feed Roll Shift Cylinders
Group 25—Cutterhead Lift Cylinders
Group 30—Spout Cap Cylinders
Group 35—Spout Control Motor
SECTION
Group 05—Wiring Harness
Group IO—Diagnosis and Tests
Group 15—Electrical Adjustments
Group 20—MetaI Detector
SECTION 50–CUTTERHEAD
ASSEMBLY
Group 05—Feed Rolls
Group IO—Stationary Knife
Group 15—Cutterhead
Group 20—Knife Sharpener
Group 25—Troubleshooting
SECTION 60–MISCELLANEOUS
Group 05—Auger
Group 10—-Fan
Group 15—-Spout Liner
Group 20—Wheel Bearings
