1640, 1840, 2040 G and 2040 STractors
SECTION 10 GENERAL
1640, 1840, 2040 and
CONTENTS
Group 00 Specifications and special tools
Group 05 Pre-delivery, delivery and after-sales inspections
Group 10 Lubrication and periodic service
Group 15 Engine and tractor tune-up
Group20 Tractor separation (tractors without increased liftingcapacity
Group 25 Tractor separation (tractors with increased liftingcapacity)
SECTION 20 ENGINE
Group00 Specifications
Group 05 Radiator
SECTION 30 FUEL AND AIR INTAKE SYSTEM
Group00 Specificationsandspecial tools
Group 05 Diagnosing malfunctions
Group 10 Fuel tank and water trap
Group 15 Cold weather starting aids
Group 20 Speed controllinkage
Group 25 Air cleaner
SECTION 40 ELECTRICAL SYSTEM
Group 00 Specifications and special tools
Group05 Description,diagnosingmalfunctionsandtests
Group 10 Wiring harnesses
Group 15 Controls and instruments
Group 20 Lightingsystem
Group25 Wiringdiagrams
Group 30 Starting motor
Group 35 Alternator
SECTION 50 POWER TRAIN
Group 00 Specifications and special tools
Group 05 Description, operation and lubricating system
Group 10 Clutch operating linkages
Group 15 Engine clutches
Group 20 Hi-Lo shift unit
Group 25 Creeper transmission
Group 30 Transmission shift linkage
Group35 Synchronizedtransmissionandtransmissionoilpump
Group 40 Collar shift transmission and transmission oil pump
Group 45 Differential
Group 50 Final drives
Group55 IndependentPTO
Group 60 Continuous-running PTO
Group 61 Front PTO
Group 65 Mechanical front wheel drive
CONTENTS (Contd.)
SECTION 60 STEERING SYSTEM AND BRAKES
Group 00 Specifications and special tools
Group 05 Hydrostatic steering (operating pressure: 12000 kPa; 120 bar; 1740 psi)
Group06 Hydrostatic steering (operating pressure: 15000kPa;150bar;2180psi)
Group 10 Power steering
Group15 Manualsteering
Group 20 Brakes
SECTION 70 HYDRAULIC SYSTEM
G roup 00 Specifications and special tools
Group 05 Description, diagnosing malfunctions and pressure tests
Group 10 Oil reservoir, filter, valves and oil cooler
Group 15 Hydraulic pumps
Group 20 Rockshaft
Group 21 Front hitch
Group 25 Selective control valves (spool type)
Group 30 Selective control valves (poppet valve type)
Group 35 Hose couplers
Group 40 Remote cylinder
Group 45 Selective control valves (for tractors manufactured in Spain)
SECTION 80 MISCE LLANEOUS
Group00 Specificationsandspecialtools
G roup 05 Front axle
Group 10 Beltpulley
Group15 Frontandrearwheels
G roup 20 Axla trailer hitch
SECTION 90 OPERATOR’S CAB
Group00 Specificationsandspecialtools
Group 05 Air conditioning system
Group 10 Cab ventilation and heating
G roup 15 Operator’s seats
Group 20 OPU cab
Group 25 SG2 cab
Group 30 Roll guard
CONTENTS OF THIS SECTION
GROUP 00 SPECI FICATIONS AND SPECIAL TOOLS
GROUP 15 TUNE-UP
10-00-2 Specifications and SpecialTools
GROUP
25 TRACTOR
SEPARATION
(Tractors with Increased Lifting Capacity)
Special tools ................................................25-1
Torques for hardware ..........,..........25-5
Capacities 25-7
Standard torques. 25-7
Important notes . , ........, .........25-9
Removing tractor front end. 25-10
Installing tractor front end 25-18
Separating between engine and clutch housing 25-20
Joining tractor between engine and clutch housing 25-28
Removing engine. 25-31
Installlng engine , 25-32
Removing clutch housing 25-33
Installing clutch housing 25-34
Removing transmission 25-35
Installing transmission , 25-41
Removing final drives 25-44
Install ingfinal drives 25-52
Removing rockshaft 25 55
Installing rockshaft.....................................25-56
Removing front wheel drive axle 25-58
Installing front wheel drive axle 25-60
Removing SG2 cab 25-63
Installing SG2cabs... ,.................................25-73
Removing front hitch 25-76
lnstalhng front hitch 25-79
Removing front PTO, 25-81
Installing front PTO 25-83
- 1640, 1840, 2O4O and 2OdO S
Specifications and Special Tools
Serial Numbers
Specifications
Theengineserialnumber isstampedintotheplatelocatedonthelower frontright-handsideofthe cylinder block.
NO TE. then ordering enpine parts, quote all digits of serial number stamped on the plate.
Theplate showing the tractor serial number is located ontheright-hand sideof thefrontaxlecarrier.
NOTE: then ordering tractor spare parts (excluding engine parts), quote all numbers and letters of serial number stamped on the plate.
Aplateshowingthetractortype,transmissionserialnumber,conepointmeasurementetchedintopinion face of differential drive shaft as well as reduction of differential is located on the right-hand side of the transmission case.
Model Numbers
The fuel injection pump, fuel injection nozzles, alternator, starting motor, hydrostatic steering valve, compressor of air conditioning system (when equipped) and hydraulic pump have model numbers to facilitate identification of different makes of a given unit.
Engine
Compression ratio
1640,1840and2040uptoengineserialno.571869CDand 2040 Sup toengine serial no. 547536 CD 1640and2040fromengineserialnci.571870CDand 2040 S from engine serial no. 547537 CD
10-00-4 SpecificationsandSpecialTools
or cold)
Working
Flywheel horsepower at engine rated speed 2500 rpm According
PTO* horsepower at engine rated speed 2500 rpm
Lubrication system .......Fullinternal force feed system, with full flow filter
Engine Clutch Single dry disk with torsion damper or dual-stage dry disk, foot-operated
Cooling System
Type
Pressurizedsystemwithcentrifugalpump
Temperature regulation , Thermostat
With the engine run in (above 100 hours of operation) and having reached operating temperature (engine and transmission) ; measured by r›1eans of a dynamometer. Permissible variation + 5 %.
Fuel System
to engine sertial no. 531584 CD ...........................
531585 CD
serial no. 530063 CD
serial no. 530064 CD
Electrical System
Alternator with internal regulator Tractors without operator’s cab
or
amps. Tractors with operator’s cab ................., ............................. 14volts,55amps.
10-00-6 SpecificationsandSpecialTools
Synchronized Transmission
Type , Synchronized transmission
Gear selections 8forwardand4reverse
Gear shifting Twoforwardgroupsandonereversegroup Synchronizedforwardandreverseshifting within groups
Collar Shift Transmission
Type
Gear selections .Helical gears .8 forward, 4 reversespeeds
Gear shifting , , , Two forward ranges, One reverse rarge
Hi-Lo Shift Unit
Type
Hydraulic gear reduction unit which can be shifted under |oad with "wet" multiple disk clutch and brake packs
Travel speed decreases in each gear by ... , ..................Approx. 20 %
Shifting to reduced ( Lo) speed , , ,, Preloaded cup springs
Shifting tonormal (Hi) speed , , Hydraulic
Creeper Transmission
Type , Synchronized reduction unit
Travelspeeddecreasesinlow(I)andreverserangesby approx. 79%
Shifti ng both ranges , , .. , .Mechanical and not under load
DifferentialandFinalDrives
Type of differential
Type of final drive. . Spiralbevel gears . P|anetary reduction drive
TM-4363 (Aug-86) Printed inGermany (F4)
Tractors - 1640, 1840, 2040 and 2040 S
General
Differential Lock
Specifications and Special Tools
Operation , Hand o foot ope ated
Disengage . , , ,
PTO
INDEPENDENT PTO
Will disengage automatica|ly as soon as traction has equal ized
Type ..............., Independent of transmission, can be engaged anddisengagedunderload
PTO clutch Hydraulicallyoperated"wet"diskclutch
PTO brake.. , Hyd raul ically operated "wet" disk brake
CON TINUOUS RUi\IN ING PTO
Type .
PTOSPEEDS (inrpm) . Independent of transm ission, with engine dual stageclutch
Mechanical Front Wheel Drive
Co ntrol ElectricaI/lsydrau ic solenoid switch
E ngagement... ,
, ,, Preloaded cupsprings
Disengagement HydrauI ic
TM-4363 (Aug-86) Printed in Germany (F 4) Tractors - 1640, 1840, 2040 and 2040 S
10-00-8 SpecificationsandSpecialTools General
Hydrostatic Steering . , ... , . Without mechanical linkage between steering valve and the front wheels
Power Steering , , ..Hydraulically operated steering linkage
Man ual Steering , RecirCulating ball bearing type
FootBrakes
Handbrake
Hydraulic System
Type
Self-adjusting, hydraulically operated “wet” disk brakes
Mechanically operated band -type locking brake acting on the differential
Closed center, constant p essure svstem
Stand by pressure* , 19000 kPa 190 bar 2760 psi
Operating pressure* *.... , 7000 kPa 170 bar 2470 psi
Hydraulic pump ................................. 4 or 8-pistan pump with variable displacement
Capacities
Fuel tank
Plastic tank 95livers
Metal tank. ...............................................90 liters
Cooling system
Without operator’s cab , 13 liters
With operator’s cab 15 liters
Engine crankcase
WithouI filter change. 8 liters
With filter change 8.5 liters
Transmission -Hydraulic system Iincluding oilreservoir andoilcooler)
Synchronized transmission
Initial filling 1640, 1840and2040 59liters 1640and2040withheavy-duty finaldrivesand20405......64liters
Oil change 1640, 1B40and 2040 51 liters 1640 and 2040 with heavy•duty final drives and2040 S 56 liters
25.1U.S.gals. 23.8U.S.gals.
3.4U.S.gals. 4.0 U.S.gals. S.1 U.Seals. 2.25U.S.gals. 15.6 U.S. gals. 16,9 U.S.gals.
13.5 U.S.gals. 14.8 U.S.gals.
- 1640, 1840, 2040 and 2040 S
Collar shift transmission
Initial filling 1640, 1840 and 2040 ........
1640 and Z040 with
and 2040 with
Mechanical front wheel drive
Front axIe housing up to serial no. 449 999 .... from serial no. 450 000 L
Wheel hub housing, each up to serial no. 449 999 L........ from serial no. 450 000 L
Bel t pul ley .
Travel Speeds
Front and Rear Wheels
Tires,treadwidths.tirepressuresandballastweights
Dimensions and Weights
10-00-10 Specifications and SpecialTools
Predelivery, Delivery and After-Sales Inspections
ENGINE SPEEDS
Slow idle ..., 700 to B00rpm Fast Idle .....................,.......... 2610 to 2660 rpm
Rated speed.................................................................... 2500 rpm
FAN BELT
The fan belt should have 19 mm (3/4 in.) flex with 90 N (20 lb) pull midway between crankshaft and alternator or water pump (use a spring scale).
COMPRESSOR BELT
The compressor belt should have 19 mm {3/4 in.) flex with 60 N (13 lb) pull midway between pulleys.
BATTERIES
Specific gravity at an electrolyte temperature of 20 C (68 F)
and arctic conditions 1.28
, .... , , ,
CLUTCH OPERATING ASSY.
Tractors without Cab or with OPU
Clutchpedalfreetravel, approx.25 mcm 1in.
Tractors with SG2 Cab
Slave cylinder operating rod, stroke
FRONT WHEE L TOE-IN
Tractors• !thout front wheel drive , 3 to 6mm Tractors with MFWD. ............................................................. 0to3mm
ToRaues rOR HARDWARE
Front wheel rim to hub Tractors without frontwheel drive 1B0Nm TraCtors yyith MFWD......................,. , 300Nm Axlekneestoaxlecenter,capscrews.................................................400Nm
Tramors with Hydrostatic Steering
Tie rod clamps, cap screws
Capscrew(M10) 55 Nm
Capscrew (M12) 90Nm
Tierodtube,capscrew 55Nm
Tractors with Power Steeri• 9 • r Manuat Steering
Outer clamp of tie rod,cap screw 90Nm
Inner clamp of tie rod,cap screw 55Nm B.5 to 12. mm 5/16 to 15/32 in. 0.12 to0.25 in. 0 to 0.12 in.
TM-4363 (Aug-B6) Printed inGermany (F 4)
Tractors - 1640, 1840, 2040 and 2040 S
Rear wheels
Wheel disk to hub(rack-and-pinionaxle)
4-post roll guard
Rollguardtofender,capscrews ,.,
U-bolt hex.nuts
2-post roll guard
Tofinaldrivehousings,capscrews
suppports tocrossbar,capscrews........................................................
Rear wheel fenders tofinal drivehou5ings,hex.nuts ...................................,.
Lubrication and Service
CAPACITIES
Transmission Hydraulic system (including oil reservoir and oil cooler)
transmission
shift transmission
TM-4363 (Aug-86) Printed in Germany (F 4)
SERVICE INTERVALS
10-00-12 Specifications and Special Tools TM-4363 (Aup-86)Printed i’nGermany (F5)
General
Checking crankcase oil level every 10 hours
Changing engine oil every 200 hours
Changing engine oil filter................................................every 200hours
Checking transmission/hydraulic system oil level every 50 hours
Changingtransmission/hydraulicsystemoilfilter every 500hours
Changing transmission/hydraulic oi! every 1000 hours
Changinghydrostaticsteeringfilter. .......................................... every 1000 hours
Cleaninghydraulicpumpstrainer every1000hours
Checking FWD oil level . every 100 hours
FWD oil change every 1000 hours
Cleaningandpackingfrontwheelbearings every1000hours
Lubricating grease fittings
UniversaljointsofFWD . ... .
. .... . ......... every 50hours In wet and muddy conditions ..................., ....................every 10 hours
Frontaxleandfrontaxlebearings every 50hours In wet and muddy conditions every 10hours
Clutch throw-out bearing grease fitting(when equipped) every 100hours
Rear aKle bearings every 500 hours In wet and muddy conditions . every 10hours
Three point hitch every 200 hours
- 1640, lB40, 2040 and 204a S
Tune-Up
PTO horsepower* at 2500 rpm rated engine speed
According to DIN 70020, 1640 41kW 1840and2040 ........................................46kW 2040 S. 50kW
According to SAE J 816 b, 1640 ............................,
Slow idle ,
Ratedengine speed 2500 rpm
Air intake system vacuum
Air cleaner restriction warning
to 6.0
to
mbar 14 to 25in. waterhead switch closes at a vacuum of .5,5 to 6.5
RadiatorcapMghpessurevalve opens at.
Radiator cap low pressure valve opens at............
FAN BELT
Fan belt should have 19 mm (3/4 in.) flex with 90 N (20 lb) pull midway between crankshaft and alter nator or water pump (use a spring scale).
COMPRESSOR BELT
Compressor belt should have 19 mm (3/4 in.) flex with 60 N ( 13 lb) pull midway between pulleys.
Withtheengine runin(morethan 100hours of operation) andhaving reached operating temperature (engine and transmission);measured bymeans of a dynamometer.Permissible variation? 5%.
TM-4363 (Aug-86) Printed in Germany (F 4)
Tractors - 1640, 1840, 2040 and 2040 S
Tractor Separation
TOROUES FOR HARDWARE (Tractors without Increased Lifting Capacity)
Front axle carrier to engine block front attaching capscrews (4used)
rearattachingcapscrews(2used)... ,.,................................................
Front axlecarrier to oil pan,capscrews ,
Hydraulic pumpdriveshaft,capscrews. ........................................................
Jointed shaft flange to front axle drive hub (tractors with MFWD), cap screws up to serial no. 449999 L.
from serial no. 450 000 L , 75Nm
Drag link* to bell crank or steering arm, slotted nut**.... ,.............................................................................
Clutch housing to engine block
wheelstorearaxle
drive housings to transmission case, cap screws......, ..................................................120
,
Wheel disk to hub (on tractors equipped with rack-and-pinion axle).................................
Rearwheelfenderstofinaidrivehousings,hex.nuts
bothsupportstocrossbar,capscrews
10-00-14 Specifications and Special Tools TM-4363 (Aua-86) Printed inGermany (F4)
roll guard to final drive housings, cap screws................................
” On tractors with power or manual steering
“ NOTE: If cotter pin cannot be inserted when tightening to the specified torque, turn nut to neyt slot and secure with cotter pin.
Genera/
tofrontaxlecarrier,capscrews
Drawbartotransmissioncase,capscrews...........................................................
OPU Cab
Cabtorubber bearing block,slotted nuts* .........................10to 20
Rubber bearing block to bearing and pivot brackets, cap screws ....................... .............. 50Nm
Bearing pivot bracket to final drive housing, capscrews 100 Nm
Bearingbrackettobatterybox,capscrews........................................................50Nm
Battery box to flywheel housing, upper cap screw..................................... ,...................200Nm lowercapscrews...........................................................................................100 Nm
SG2 Cab
Cab to rubber bearing blocks, hex.nuts 200Nm
“ NOTE: /nsert cotter pin within specified torque.
TM-4363 (Aug-86) Printed inGermany (F4)
Tractors - 1640,1840,2040and2040S
10-00-16 SpecificationsandSpecialTools
Standard Torques
Recommended torques in Nm and ft-lb for UNC and UNF cap screws
Head marking ( Identif-ying strength) or
NOTE: A variation off 10 % is permissibfe for af/ torques indicated in this chart.
Torque figures indicated above and in the Specification sections of this manual are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil bolts or cap screws unless otherwise specified in this manual.
” Tempered steel high strength bolts and cap screws
”” Tempered steel extra high strength bolts and cap screws
TM-4363 (Aup-B6) Printed in Germany (F 4)
Tractors - 1640, 1840, 3040 and 2040 S
Recommended torques in Nm and 1t-lb for metric cap screws
NOTE: A variation of IO % is permissible for all torques indicated in thischart.
Torque figures indicated above and in the Specification sections of this manual are valid for non-greased or non-oiled threads and heads unless otherwise specified. Therefore, do not grease or oil bolts or cap screws unless otherwise specified in this manual.
* Regular bolts and cap screws
*” Tempered steel high strength bolts and cap screws
*““ Tempered steel extra high strength bolts and cap screws
Recommended torques in Nm and ft-lb for pipe and hose connections with O-rings with cone
3/8-24 UNF
7/16-20 UN F
1/2-20 UNF
9/16-18 UNF
3/4-16 UNF
7/8-14UNF
1-1/16-12 UNC
1-3/16-12 UNC
1-5/16-12 UNC
1-5/8-12 UNC
1-7/8-12 UNC
