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Same Dorado 55 60 65 70 75 85 service repair workshop manual














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19.4453 MB PDF File

It is workshop manual for Same tractors. Models included:
55
60
65
70
75
85

language:english
number of pages: 684 (full digital version)

Main sections:
Introduction
Safety sections
Tractor configurations DORADO 55 - 60 - 65 - 70 - 75 - 85 .....................................................................................6
Dimensions and weights...........................................................................................................................................7
Prescribed lubricants and capacities ........................................................................................................................9
Conversion tables...................................................................................................................................................10
Parts .......................................................................................................................................................................11
1 - ENGINE
Engine section ........................................................................................................................................................12
General characteristics ...........................................................................................................................................20
Timing specifications ..............................................................................................................................................21
Lubrication system - specifications.........................................................................................................................22
Fuel supply system - specifications ........................................................................................................................23
Turbocharger - specifications .................................................................................................................................24
Cooling system - specifications ..............................................................................................................................25
Engine cylinder block..............................................................................................................................................26
Installing bushings into the camshaft journals ........................................................................................................26
Adjusting backlash between the gear teeth of the auxiliary engine drive ...............................................................27
Support for hydraulic pumps or air compressor located between engine block and timing cover ..........................27
Timing idler gea ......................................................................................................................................................29
Cylinders.................................................................................................................................................................30
Main bearings .........................................................................................................................................................33
Crankshaft ..............................................................................................................................................................35
Connecting rods - connecting rod bearings and bushings .....................................................................................38
Pistons ....................................................................................................................................................................39
Piston rings .............................................................................................................................................................39
Counterweights for 4-cylinder engines ...................................................................................................................44
Engine flywheel ......................................................................................................................................................45
Checking camshaft .................................................................................................................................................48
Checking camshaft bushings..................................................................................................................................48
Checking timing gear ..............................................................................................................................................48
Cylinder heads - valves - valve rockers ..................................................................................................................49
Cleaning cylinder heads .........................................................................................................................................50
Checking engine compression ...............................................................................................................................53
Oil pump ................................................................................................................................................................54
Checking pressure relief valve ...............................................................................................................................54
Fitting shims between engine oil pan and front support .........................................................................................55
Fuel injection nozzles .............................................................................................................................................56
Mechanical-type engine governor ..........................................................................................................................58
Assembly of the governor unit ................................................................................................................................60
Fitting and adjustment of the external controls of the mechanical governor .........................................................62
Engine governor control assembly .........................................................................................................................64
Electronic engine governor ....................................................................................................................................66
Installing and checking the pick-up.........................................................................................................................68
Installing and checking actuator .............................................................................................................................69
Fitting and checking the accelerator pedal (1st version) .......................................................................................70
Fitting and checking the accelerator pedal (2nd version). .....................................................................................72
Fuel injection pumps...............................................................................................................................................76
Injection pump control system ................................................................................................................................76
Installing injection pump control bar guide supports...............................................................................................77
Engine timing ..........................................................................................................................................................77
Positioning the pumps ............................................................................................................................................80
Fuel prefilter ............................................................................................................................................................83
Fuel filter .................................................................................................................................................................83
Draining water from fuel filter ..................................................................................................................................83
Fan assembly .........................................................................................................................................................85
Turbocharging DORADO 65 - DORADO 85.........................................................................................................88
Engine air filter ........................................................................................................................................................92
Tightening torques ..................................................................................................................................................92
Instructions for engine assembly ............................................................................................................................94
Diagnosing malfunctions ......................................................................................................................................108
2 - CLUTCH
Gearshift clutch.....................................................................................................................................................110
General specifications ..........................................................................................................................................110
Spring specifications to Belleville washer for the clutch engagement ..................................................................110
Cecking clutch ......................................................................................................................................................114
Adjusting clutch control pedal...............................................................................................................................114
Bleeding air from the hydraulic circuit...................................................................................................................114
Stripping the slave cylinder...................................................................................................................................115
Stripping the master cylinder ................................................................................................................................116
2
Diagnosing malfunctions ......................................................................................................................................118
Agroshift unit, general specifications....................................................................................................................119
AGROSHIFT unit detach from the gear box.........................................................................................................122
Assembly of AGROSHIFT unit .............................................................................................................................133
Re-assembly of the Agroshift unit.........................................................................................................................135
Fitting the oil manifolds of the Agroshift unit .........................................................................................................137
Diagnosing malfunctions ......................................................................................................................................142
3 - TRANSMISSION
General specifications ..........................................................................................................................................143
Technical specifications........................................................................................................................................143
Speed change configurations ...............................................................................................................................144
Section through transmission ...............................................................................................................................149
Section through transmission with Agroshift unit..................................................................................................150
Range selector rods and forks..............................................................................................................................157
Removal and refitting operations..........................................................................................................................158
Separating the front gearbox from the engine......................................................................................................159
Dismantling the gearbox.......................................................................................................................................160
Removal of the gearbox input and P.T.O. shafts..................................................................................................160
Separating the AGROSHIFT unit from the gearbox .............................................................................................160
Removal of the gear train positioned in the front gearbox....................................................................................161
Disassembly of the inversor control rods and forks..............................................................................................162
Dismantling of the gearchange rod and fork assembly ........................................................................................163
Dismantling of the gearchange selector rods and forks assembly .......................................................................164
Removal of the shaft with the actuator for engagement/disengagement of the front-wheel drive........................165
Removal of the range gear shaft ......................................................................................................................... 165
Examining parts removed.....................................................................................................................................166
Adjusting play of the gearbox shafts by means of the thrust plates on the mini/inversor
shaft and the secondary shaft .............................................................................................................................167
Warnigns related to assembly of the gears of the P.T.O. unit, the range reduction unit and synchronised
P.T.O. shaft ..........................................................................................................................................................171
Assembly of the P.T.O.........................................................................................................................................171
Installation of the range reduction unit, the gear for the front-wheel drive shaft
and the parking brake discs.................................................................................................................................171
Points where sealant is to be used.......................................................................................................................175
Tightening torques................................................................................................................................................176
Bevel drive adjustment .........................................................................................................................................179
Servicing operations .............................................................................................................................................180
Rear power take-off ..............................................................................................................................................181
P.T.O. clutch .........................................................................................................................................................186
Technical specifications........................................................................................................................................186
Correct positions of P.T.O. sensors and cables ...................................................................................................187
Clutch inspection ..................................................................................................................................................189
Checking clutch hydraulic pressures....................................................................................................................190
Checking the end-play of the front shaft of the P.T.O. clutch ...............................................................................191
Renewal of the rear P.T.O. clutch ........................................................................................................................192
Main operations for removal of the rear P.T.O. unit .............................................................................................193
Diagnosing malfunctions ......................................................................................................................................198
4 - AXLES
Rear axle ..............................................................................................................................................................199
Installing the rear half-shafts ...............................................................................................................................199
Removal and disassembly of the epicyclic reduction unit.........................................................................................202
Fitting lateral stub axles of the wheel ...................................................................................................................203
2WD extendible axle.............................................................................................................................................204
Removing the axle from the front support ............................................................................................................206
Centre steering lever ............................................................................................................................................209
Wheel hub ............................................................................................................................................................210
End float adjustment.............................................................................................................................................212
Front-wheel drive..................................................................................................................................................213
Specifications .......................................................................................................................................................213
Epicyclic reduction unit .........................................................................................................................................217
Side hubs..............................................................................................................................................................219
Tightening torques................................................................................................................................................220
Adjusting bevel gears ...........................................................................................................................................222
Adjustment of the internal control of the mechanical differential lock...................................................................223
Installing the differential assembly into the drive axle ..........................................................................................223
Diagnosing malfunctions ......................................................................................................................................224
5 - VEHICLE
Brakes - General information................................................................................................................................225
Hydraulic pump.....................................................................................................................................................226
Assembly of brake master cylinder ......................................................................................................................228
Checking the front brake disks on 2WD and 4WD front axles and the rear brake disks ......................................229
Adjusting service brake pedals.............................................................................................................................229
Correct installation of inspection cover for parking brake discs............................................................................230
Checking parking brake pads ...............................................................................................................................232
Bleeding air from the brake hydraulic system.......................................................................................................233
Separate Brakes valve .......................................................................................................................................234
Diagnosing malfunctions ......................................................................................................................................238
Hydraulic lift with load sensing ...........................................................................................................................239
Installing the lift and front cover plate of the gearbox ...........................................................................................240
Lift mechanism .....................................................................................................................................................240
Checking the safety valves...................................................................................................................................240
Checking the protrusion of the non-return valve...................................................................................................241
Adjusting the lift ....................................................................................................................................................243
Lift hydraulic circuit ...............................................................................................................................................244
Sensing arm assemblyMontaggio dell'organo sensibile .......................................................................................252
Power-lift distributor valve spring setting specifications .......................................................................................253
Electronic lift .........................................................................................................................................................254
Control panel ........................................................................................................................................................255
Control level or depth control knob.......................................................................................................................255
Mix position/draft control.......................................................................................................................................255
Lowering speed control knob................................................................................................................................256
Maximum lift height control knob ..........................................................................................................................256
Up/Down control switch ........................................................................................................................................256
Up control .............................................................................................................................................................256
Control/Float mode ...............................................................................................................................................256
Lift status indicator light ........................................................................................................................................256
Remote pushbuttons for lift operation from ground ..............................................................................................256
Calibration of the AUTOMATIC ............................................................................................................................257
Lift operation.........................................................................................................................................................258
Electronic circuit diagram of the ECU...................................................................................................................259
Calibration of the AUTOMATIC ............................................................................................................................260
Emergency manual lift control ..............................................................................................................................260
List of electronic lift tests ......................................................................................................................................261
Position sensor calibration ....................................................................................................................................266
Precautions for electronic equipment ...................................................................................................................271
Checking the electronics system ..........................................................................................................................271
Checking mechanical components.......................................................................................................................271
Front hydraulic liftSollevatore idraulico anteriore..................................................................................................272
Hydraulic accumulator and antishock valve for front lift .......................................................................................273
Front power take-off - General information...........................................................................................................275
Section of the P.T.O. ............................................................................................................................................278
Fitting the "RING-FEEDER" rings.........................................................................................................................280
Checking the clutch ..............................................................................................................................................281
Diagnosing malfuntions ........................................................................................................................................282
Spring specifications.............................................................................................................................................282
6 - CONTROLS
Hydrostatic steering ..............................................................................................................................................283
Inspections and checks ........................................................................................................................................284
Steering pump ......................................................................................................................................................284
Directional control valve .......................................................................................................................................284
Check the setting of the pressure relief valve.......................................................................................................284
Bleeding the hydraulic circuit ................................................................................................................................284
Assembly of orbital pump unit ..............................................................................................................................284
Teering wheel shaft and steering cylinders .........................................................................................................285
Instructions for the hydrostatic steering distributor assembly...............................................................................287
Diagnosing malfuntions ........................................................................................................................................294
Mechanical controls ..............................................................................................................................................295
Electro-hydraulic controls .....................................................................................................................................300
Front P.T.O. clutch engagement control...............................................................................................................300
Rear P.T.O. clutch engagement control ...............................................................................................................300
Differential lock engagement control ....................................................................................................................300
Front-wheel drive engagement control .................................................................................................................300
Rear P.T.O. engagement control..........................................................................................................................300
Gearbox ................................................................................................................................................................300
Front and rear lift ..................................................................................................................................................300
Hydraulic circuit diagram ......................................................................................................................................301
Solenoid valve - Specifications.............................................................................................................................307
Adjustment of front and rear differential lock control ............................................................................................312
7 - BODYWORK
Platform ................................................................................................................................................................313
Cab - General information ....................................................................................................................................314
Cab air filter ..........................................................................................................................................................316
Screen wash.........................................................................................................................................................316
Screen wipers (front and rear)..............................................................................................................................316
Removing the driving platform complete with cab................................................................................................317
Breakage of the top hood release cable...............................................................................................................319
High visibility cab roof ...........................................................................................................................................320
8 - SYSTEMS
Ventilation .............................................................................................................................................................321
Heating System ....................................................................................................................................................321
Air conditioning unit for cabs ................................................................................................................................325
Operation and maintenance of the air-conditioning system .................................................................................326
Water dripping from the points at which condensate drain lines are connected to the conditioning unit ............327
Checking system ..................................................................................................................................................329
System safety elements .......................................................................................................................................329
Temperature regulation ........................................................................................................................................329
Charging the system.............................................................................................................................................330
Filling the metering unit ........................................................................................................................................330
Refilling the system with oil ..................................................................................................................................330
Verifying operation of the system after recharging ...............................................................................................332
Directions for tightening air conditioning system pipeline fittings .........................................................................332
Diagnosing malfuntions ........................................................................................................................................339
Hydraulic system ..................................................................................................................................................340
Oil filters................................................................................................................................................................342
Hydraulic pumps...................................................................................................................................................342
Checking the relief valves of the hydraulic lift system ..........................................................................................342
Stripping the hydraulic pump................................................................................................................................342
Auxiliary hydraulic spool valves............................................................................................................................345
Checking the pressure relief valve setting............................................................................................................348
Checking the operating pressure..........................................................................................................................348
Conversion of auxiliary spool valves from double acting to single acting operation.............................................348
Checking the surface of the valve spools .............................................................................................................348
Trailer hydraulic braking system...........................................................................................................................349
Trailer hydraulic braking distributor unit................................................................................................................349
Use of the tractor with CUNA 341/01 hydraulic trailer braking .............................................................................351
Starting .................................................................................................................................................................352
Installing the hydraulic braking valve for trailers equipped with safety brake ..........................................................356
electrical system DORADO 55 - 65 (up serial number 1112) 75 - 85.................................................................359
electrical system DORADO 60 - 65 (under serial number 1111) 70...................................................................589
General safety directions......................................................................................................................................590
Jump start utilizing another battery.......................................................................................................................591
Recharge system..................................................................................................................................................593
Heating system..............................................................................................................................................593-594
Heating and conditioning system..........................................................................................................................594
Starting system.....................................................................................................................................................594
Ignition key ..................................................................................................................................................595 - 596
Ventilation control .................................................................................................................................................596
Push button control .......................................................................................................................................596-597
2-Speed windscreen wiper switch ........................................................................................................................598
Work ligths............................................................................................................................................................598
Screen washer switch...........................................................................................................................................598
Beacon push button..............................................................................................................................................598
Push button AGROSHIFT.....................................................................................................................................599
Relay ....................................................................................................................................................................599
Electronic flasher unit ...........................................................................................................................................599
Switch controlling..................................................................................................................................................600
Switch controlling: differential lock - P.T.O. clutch - 4RM - 540 1000 rpm/min P.T.O. speed selector -
Economy P.T.O. - Live P.t.o. - electric starter system.........................................................................................600
Switch for emergency brake .................................................................................................................................600
Fuse box...............................................................................................................................................................601
Instrument panel with digital display.....................................................................................................................602
Operation of the broken belts alarm control unit...................................................................................................604
Engine stop operation with a type 2MH engine control unit .................................................................................606
Electrical wiring.....................................................................................................................................................609
9 - APPENDIX
Engine electronic unit ................................................................................................................................................I
Power lift tester version 1.23a ...........................................................................................................................XLVII
Power lift tester version 1.24a .............................................................................................................................LXV


(ID 238940450)

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