MODELS 5640 6640 7740 7840 8240 8340 FORD SHOP MANUALS
The Ford New Holland 8240 8340 Tractor Service Repair Manual
identification plate is located on right side under the tractor hood. Serial and model numbers of the tractor, engine, transmission, rear axie, hydraulic pump and the hydraulic lift are recorded on this identification plate, if equipped with front-wheel drive, a simiar plate is attached to the rear surface of the front drive axle housing.
This manual was used by mechanics to help in figuring accurate job estimates and charging fair prices for service work. For the owner, these are helpful manuals as they allow you to determine how long a job will take and to validate a repair bill from a shop.
Ford New Holland 8240 8340 Tractor Service Repair Manual PDF
INDEX (By Starting Paragraph)
BRAKES
Adjustment 226
Brake Discs and Actuating Assembly 230
Master Cylinder 229
System Bleeding 228
CLUTCH, ENGINE
Clutch Assembly, R&R 126
Clutch Linkage 124
Clutch Master Cylinder 129
Clutch Release Bearing 127
Tractor Split 123
COOLING SYSTEM
Radiator 87
Radiator Pressure Cap and Thermostat 86
Water Pump 88
DIESEL FUEL SYSTEM
Adjustments 83
Filters and Bleeding 70
Fuel Injection Pump 80
Fuel Injectors 72
Fuel Tanks 66
Injection Pump Drive Gear
Troubleshooting 69
DIFFERENTIAL, MAIN DRIVE BEVEL
GEARS, FINAL DRIVE AND REAR AXLES
Bevel Pinion 222
Differential and Differential Lock 220
Rear Axle and Final Drive 224
Tractor Rear Spht 219
DUAL POWER (16 x 4 Transmission)
Control Valve 144
Dual Power Unit 145
Lubrication 141
Pressure Test 142
Troubleshooting 143
ELECTRICAL SYSTEM
Alternator and Regulator 89
Instrumentation 94
Starting Motor 93
ELECTRICAL WIRING DIAGRAMS 300
ENGINE AND COMPONENTS
Cam Followers 45
Camshaft and Bearings. 44
Connecting Rods and Bearings 52
Connecting Rod and Piston Units 46
Crankshaft and Main Bearings 53
Crankshaft Oil Seals . 54
Cylinder Head 32
Engine Balancer (5640, 6640, 7740) 56
Engine, R&R 31
Exhaust Valve Rotators 37
Flywheel 57
Oil Pump and Relief Valve 59
Oil Sump 58
Pistons and Rings 47
Pistons and Cylinders 48
Piston Pins 51
Rocker Arms . 33
Timing Gear Cover 38
Timing Gears 39
Turbocharger (7740 and 8340) . 61
Valve Clearance 34
Valve Guides and Springs 36
Valves, Stem Seals and Seats 35
FRONT AXLE (Two Wheel Drive)
Axle Center Member, Pivot Pins and Bushings. 4
Front Support 5
Spindles, Axle Extensions and Bushings 3
Tie Rod, T3e-0ut and Tread Adjustment 2
Wheels and Bearings 1
FRONT-WHEEL DRIVE
Adjustments 6
Axle Pivot Bearings 14
Bevel Pinion Gars 17
Differential 15
Drive Shaft 9
Front Drive Axle. 10
Front Support 20
Steering Knuckle Housing 13
Transfer Gearbox 18
Wheel Hub and Planetary (5640, 6640, 7740). 11
Wheel Hub and Planetary (7840, 8240, 8340). 12
HYDRAULIC LIFT (Electronic Draft Control)
Electronic Draft Control Valve 280
Hydraulic Lift Cover 278
Operation 270
Troubleshooting 271
HYDRAULIC LIFT (Top Link Sensing)
External Linkage Adjustment 291
Hydraulic Lift Cover and Cylinder 285
Internal Linkage Adjustment 288
Lift Assist Cylinder 294
Operation 281
Priority Valve Pack 283
Troubleshooting 282
Unloading Valve 284
HYDRAULIC SYSTEM
Hydraulic Fluid and Filters 240
HYDRAULIC SYSTEM (Closed Center
Load Sensing)
Operation 241
Pressure Testing 243
Pump Overhaul 254
Troubleshooting 242
HYDRAULIC SYSTEM (Open Center)
Engine Mounted Auxiliary Gear Pump 269
Operation 258
Pressure Testing 259
Transmission Mounted Tandem Gear Pump . 268
HYDROSTATIC STEERING
Fluid and Bleeding 22
Power Cylinder 26
Pump 25
Steering Valve 29
Tests and Adjustment 24
Troubleshooting 23
POWER TAKE-OFF
Operating Principles 232
Pto Clutch and Control Valve (Mechanically
Operated) 237
Pto Clutch and Control Valve (Electric Solenoid Operated) 238
Pto Output Shafts and Gears 234
Troubleshooting 233
REDUCTION GEARBOX 148
REMOTE CONTROL VALVES
Adjustments 296
Remote Control Valve 298
Remote Valve Couplers 299
TRANSMISSION ( 8 x 2 Constant Mesh)
Lubrication 131
Overhaul 133
Remove and Reinstall 132
TRANSMISSION (16 x 16 Powershift Built
Prior To September 1993)
Clutch Calibration 178
Electrical Component Description 177
Gearshift Cover 193
Gearshift Linkage 192
Pressure Testing 184
Transmission Control Valve . 190
Transmission Overhaul 194
Troubleshooting Electronic Control System. . 188
Troubleshooting Transmission System 189
TRANSMISSION (16 x 16 ‘Quad Mod’ Powershift Built September 1993 And After)
Clutch Fill Time Calibration 206
Clutch Spring Pressure Calibration 204
Gear Shift Control Cables 216
Pressure Testing 208
Transmission Control Valve 215
Transmission Overhaul 218
Troubleshooting Electronic Control System. 212
TRANSMISSION (12 x 12 Synchro-Shift)
Lubrication 151
Overhaul 153
Remove and Reinstall 152
TRANSMISSION (12 x 12 Synchro-Shift With
Dual Power)
Clutch Calibration 163
Dual Power Unit 174
Electro-Hydraulic System 162
Lubrication Control Valve 173
Pressure Testing 171
Transmission Control Valve 172
Troubleshooting Electronic Control System. . 167
Ford New Holland 8240 8340 Tractor Service Repair Manual PDF
