service manual download

1. SERVICE MANUAL
TD3.50
Tractor
TD3.50
Tractor
Part number 48012910
English
May 2016
© 2016 CNHI International. All Rights Reserved.
SERVICE
MANUAL
1/1
Part number 48012910

2. Link Product / Engine
Product Market Product Engine
TD3.50 Europe 8045.45.747
48012910 23/08/2016

3. Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase ............................................................. 10.1
[10.102] Pan and covers .................................................................... 10.2
[10.106] Valve drive and gears .............................................................. 10.3
[10.101] Cylinder heads ..................................................................... 10.4
[10.105] Connecting rods and pistons....................................................... 10.5
[10.103] Crankshaft and flywheel............................................................ 10.6
[10.218] Fuel injection system............................................................... 10.7
[10.400] Engine cooling system ............................................................. 10.8
[10.414] Fan and drive ...................................................................... 10.9
[10.304] Engine lubrication system........................................................ 10.10
Clutch ....................................................................................... 18
[18.110] Clutch and components ............................................................ 18.1
Transmission.............................................................................. 21
[21.114] Mechanical transmission ........................................................... 21.1
[21.140] Mechanical transmission internal components..................................... 21.2
Four-Wheel Drive (4WD) system .................................................. 23
[23.314] Drive shaft.......................................................................... 23.1
Front axle system ....................................................................... 25
[25.100] Powered front axle ................................................................. 25.1
[25.102] Front bevel gear set and differential ............................................... 25.2
[25.108] Final drive hub, steering knuckles, and shafts ..................................... 25.3
Rear axle system........................................................................ 27
[27.100] Powered rear axle.................................................................. 27.1
[27.106] Rear bevel gear set and differential................................................ 27.2
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4. [27.120] Planetary and final drives .......................................................... 27.3
Power Take-Off (PTO)................................................................. 31
[31.101] Rear mechanical control ........................................................... 31.1
[31.110] One-speed rear Power Take-Off (PTO) ............................................ 31.2
Wheels...................................................................................... 44
[44.511] Front wheels........................................................................ 44.1
Electrical systems....................................................................... 55
[55.000] Electrical system ................................................................... 55.1
[55.100] Harnesses and connectors......................................................... 55.2
[55.201] Engine starting system ............................................................. 55.3
[55.301] Alternator........................................................................... 55.4
[55.302] Battery.............................................................................. 55.5
[55.408] Warning indicators, alarms, and instruments ...................................... 55.6
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5. INTRODUCTION
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6. INTRODUCTION
Safety rules
Pay attention to this symbol
This warning symbol points out important messages involving personal safety. Carefully read the safety rules
contained herein and follow advised precautions to avoid potential hazards and safeguard your safety and personal
integrity.
In this manual you will find this symbol together with the following keywords.
WARNING: It gives warning about improper repair operations and potential consequences affecting the service tech-
nician’s personal safety.
DANGER: It gives specific warning about potential dangers for personal safety of the operator or other persons directly
or indirectly involved in the operation.
To prevent accidents
Most accidents and personal injuries taking place in workshops are due from non-observance of some simple and
essential prudential rule and safety precautions.
For this reason, in most cases they can be avoided. It suffices to foresee possible causes and act consequently with
necessary caution and care.
The possibility that an accident might occur with any type of machines should not be disregarded, no matter how well
the machine in question was designed and built.
A wise and careful service technician is the best precautions against accidents.
Careful observance of this only basic precaution would be enough to avoid many severe accidents.
DANGER
Never carry out any cleaning, lubrication or maintenance operations when the engine is running.
General
Carefully follow specified repair and maintenance procedures.
• Do not wear rings, wrist watches, jewelry, unbuttoned or loose articles of clothing such as: ties, torn clothing,
scarves, open jackets or shirts with open zips which may remain entangled in moving parts. We advise to use
approved safety clothing such as anti-slipping footwear, gloves, safety goggles, helmets, etc.
• Never carry out any repair on the machine if someone is sitting on the operator’s seat, except if they are certified
operators to assist in the operation to be carried out.
• Never operate the machine or use attachments from a place other than sitting at the operator’s seat.
• Never carry out any operation on the machine when the engine is running, except when specifically indicated.
• Stop the engine and ensure that all pressure is relieved from hydraulic circuits before removing caps, covers, valves,
etc.
• All repair and maintenance operations must be carried out using extreme care and attention.
• Service steps and platforms used in a workshop or in the field should be built in compliance with the safety rules in
force.
• Disconnect the batteries and label all controls to indicate that the vehicle is being serviced. Block the machine and
all equipment which should be raised.
• Never check or fill fuel tanks or batteries, nor use starting liquid if you are smoking or near open flames as such
fluids are flammable.
• Brakes are inoperative when they are manually released for maintenance purposes. In such cases, the machine
should be kept constantly under control using blocks or similar devices.
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7. INTRODUCTION
• The fuel filling gun should always remain in contact with the filler neck. Maintain this contact until the fuel stops
flowing into the tank to avoid possible sparks due to static electricity build-up.
• Use exclusively specified towing points for towing the tractor. Connect parts carefully. Ensure that foreseen pins
and/or locks are steadily fixed before applying traction. Do not stop near towing bars, cables or chains working
under load.
• To transfer a failed tractor, use a trailer or a low loading platform trolley if available.
• To load and unload the machine from the transportation means, select a flat area providing a firm support to the
trailer or truck wheels. Firmly tie the machine to the truck or trailer platform and block wheels as required by the
forwarder.
• For electrical heaters, battery-chargers and similar equipment use exclusive auxiliary power supplies with a efficient
ground to avoid electrical shock hazard.
• Always use lifting equipment of appropriate capacity to lift or move heavy components.
• Pay special attention to bystanders.
• Never pour gasoline or diesel oil into open, wide and low containers.
• Never use petrol, diesel oil or other inflammable liquids as cleaning agents. Use non-flammable non-toxic propri-
etary solvents.
• Wear safety glasses with side guards when cleaning parts using compressed air.
• Do not exceed a pressure of 2.1 bar, in accordance with local regulations.
• Do not run the engine in a closed building without proper ventilation.
• Do not smoke, use naked flames, or cause sparks in the area when fuel filling or handling highly inflammable liquids.
• Do not use flames as light sources when working on a machine or checking for leaks.
• Move with caution when working under a tractor, and also on or near a tractor. Wear proper safety accessories:
helmets, goggles and special footwear.
• During checks which should be carried out with the engine running, ask an assistant to seat at the operator’s seat
and keep the service technician under visual control at any moment.
• In case of operations outside the workshop, drive the tractor to a flat area and block it. If working on an incline
cannot be avoided, first block the tractor carefully. Move it to a flat area as soon as possible with a certain extent
of safety.
• Ruined or plied cables and chains are unreliable. Do not use them for lifting or trailing. Always handle them wearing
gloves of proper thickness.
• Chains should always be safely fastened. Ensure that fastening device is strong enough to hold the load foreseen.
No persons should stop near the fastening point, trailing chains or cables.
• The working area should be always kept CLEAN and DRY. Immediately clean any spillage of water or oil.
• Do not pile up grease or oil soaked rags, as they constitute a great fire hazard. Always place them into a metal
container.
Before starting the tractor or its attachments, check, adjust and block the operator’s seat. Also ensure that there
are no persons within the tractor or attachment operating range.
• Do not keep in your pockets any object which might fall unobserved into the tractor’s inner compartments.
• Whenever there is the possibility of being reached by ejected metal parts or similar, use protection eye mask or
goggles with side guards, helmets, special footwear and heavy gloves.
• Wear suitable protection such as tinted eye protection, helmets, special clothing, gloves and footwear whenever it is
necessary to carry out welding procedures. All persons standing in the vicinity of the welding process should wear
tinted eye protection. NEVER LOOK AT THE WELDING ARC IF YOUR EYES ARE NOT SUITABLY PROTECTED.
• Metal cables with the use get frayed. Always wear adequate protections (heavy gloves, eye protection, etc.)
• Handle all parts with the greatest caution. Keep your hands and fingers far from gaps, moving gears and similar.
Always use approved protective equipment, such as eye protection, heavy gloves and protective footwear.
Start up
• Never run the engine in confined spaces that are not equipped with adequate ventilation for exhaust gas extraction.
• Never place the head, body, limbs, feet, hands or fingers near fans or rotating belts.
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8. SERVICE MANUAL
Engine
TD3.50
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9. Engine - Engine and crankcase
Engine - Sectional view
Longitudinal section of 3 cylinder engine
ANIL15TRO0027GB 1
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10. Engine - Engine and crankcase
Engine - Sectional view
Cross section of 3 cylinder engine
ANIL15TRO0028GA 1
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11. Engine - Engine and crankcase
Engine - Sectional view
ANIL15TRO0029HB 1
Lubrication system of 3 cylinder engine
F. Filter S. Suction screen
G. Oil pressure gage T. Oil fill cover
L. Oil dipstick V. Pressure bypass valve
P. Pump V1. Filter bypass valve
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12. Engine - Engine and crankcase
ANIL15TRO0030GB 2
Engine cooling system
a. Thermostat open 3. Water temperature gage
b. Thermostat closed 4. Engine coolant temperature sender
c. 3-cylinder models 5. Fan
1. Thermostat 6. Radiator
2. Pump
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13. Engine - Engine and crankcase
Engine - Remove
WARNING
Heavy objects!
Lift and handle all heavy components using lifting equipment with adequate capacity. Always support
units or parts with suitable slings or hooks. Make sure the work area is clear of all bystanders.
Failure to comply could result in death or serious injury.
W0398A
CAUTION
Pinch hazard!
Always use suitable tools to align mating parts. DO NOT use your hand or fingers.
Failure to comply could result in minor or moderate injury.
C0044A
1. Remove the negative (-) pole of the battery.
ANIL15TRO0031AA 1
2. Remove the guards at the right and left hand side of
the engine.
ANIL15TRO0032AA 2
3. Remove the fixing bolt (1) of the gas strut.
ANIL15TRO0034AB 3
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14. Engine - Engine and crankcase
4. Loosen the pins, which hold the hood, from it’s socket.
ANIL15TRO0035AB 4
5. Disconnect the connections (1) from the clogged air
filter sensor.
ANIL15TRO0036AB 5
6. Disconnect the connection (1) from the coolant water
temperature sensor
ANIL15TRO0037AB 6
7. Disconnect the electrical connection of heater on fuel
system.
ANIL15TRO0038AA 7
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15. Engine - Engine and crankcase
8. Disconnect the electrical connection of cut-off sender
on fuel system.
ANIL15TRO0039AA 8
9. Disconnect connection of the level sender from the
brake fluid reservoir.
ANIL15TRO0040AA 9
10. Disconnect the electrical connection from KSB unit.
ANIL15TRO0041AA 10
11. Disconnect the electrical connections from alternator
(1).
ANIL15TRO0042AB 11
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16. Engine - Engine and crankcase
12. Disconnect the fuse box connections and cables be-
tween the battery and starter motor.
ANIL15TRO0043AA 12
13. Disconnect the electrical socket connections on the
engine.
ANIL15TRO0044AB 13
14. Remove the bracket (1) from the pump where hand
throttle and accelerator pedal is connected.
ANIL15TRO0045AB 14
15. Remove the hand throttle and accelerator pedal fixing
support (1) from the pump.
ANIL15TRO0046AB 15
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17. Engine - Engine and crankcase
16. Remove the fuel line bolt (1) on the fuel delivery pump.
ANIL15TRO0047AB 16
17. Disconnect the delivery line of hydraulic lift pump (1).
ANIL15TRO0048AB 17
18. Remove the clamp from the oil reservoir hose and
detach it.
ANIL15TRO0049AB 18
19. Remove the delivery lines (1) and pressure sender (2)
of hydrostatic steering pump.
ANIL15TRO0050AB 19
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18. Engine - Engine and crankcase
20. Remove the clamp from the rubber hose line of hy-
draulic lift pump delivery line.
ANIL15TRO0051AA 20
21. Disconnect the electrical connections (1) from fuel
float (4) and remove the fuel return line connection
(2).
ANIL15TRO0052AB 21
22. Remove the suction and pressure lines from hydro-
static steering cylinder.
ANIL15TRO0053AA 22
23. Remove the radiator hose clamps (1). Drain the cool-
ing system coolant liquid.
ANIL15TRO0054AB 23
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19. Engine - Engine and crankcase
24. Remove front, middle and rear fixing bolts from 4WD
shaft shield and remove the shield.
ANIL15TRO0055AA 24
25. Remove the snap ring (2) at the front axle side of the
4WD shaft. Slide the sleeve (1) in the direction of
arrow, indicated in the figure 25.
ANIL15TRO0056AB 25
26. Remove the snap ring (2) at the 4WD transmission
side of the 4WD shaft. Slide the sleeve (1) in the direc-
tion shown in the figure 26, until the shaft is released.
ANIL15TRO0057AB 26
27. Remove the middle support bolts (1) on the 4WD shaft
and take out the 4WD shaft together with its support.
ANIL15TRO0058AB 27
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20. Engine - Engine and crankcase
28. Place a rotating stand (1) under the engine transmis-
sion body and place a block at both sides to prevent
rotation of the axles.
ANIL15TRO0059AB 28
29. Place a wooden block (1) between the stands and
tractor.
ANIL15TRO0060AB 29
30. Position a fixed stand (1) under the draw bar support
and engage the hand brake.
ANIL15TRO0061AB 30
31. Remove ten bolts (1) fixing the engine to the transmis-
sion.
ANIL15TRO0062AA 31
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21. Engine - Engine and crankcase
32. Separate the engine from the transmission.
ANIL15TRO0063AA 32
33. Insert the fixed stand (1) under the front ballast and
secure the front wheels with wooden blocks (2).
NOTE: After separating the engine from the transmission
follow the following steps of procedure to separate front
axle support.
ANIL15TRO0064AB 33
34. Remove two metal clamps (1) from the turbocharger.
ANIL15TRO0065AB 34
35. Remove engine air intake hose connections located
on the intake line.
ANIL15TRO0066AB 35
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22. Engine - Engine and crankcase
36. Take out the metal clamps securing the turbocharger
(1) connections.
ANIL15TRO0067AB 36
37. Remove connection clamps (1) of the cooling system
hoses.
ANIL15TRO0068AB 37
38. Remove the fixing clamps (1) of the connection hoses
at the top of the radiator.
ANIL15TRO0069AB 38
39. Remove the bolts fixing the engine to the front axle
support.
ANIL15TRO0070AA 39
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23. Engine - Engine and crankcase
40. Connect the crane to the adjustable chain (1) fixed to
lifting lugs on the engine.
41. Lift the engine off to a suitable place by separating
front axle support.
ANIL15TRO0071AB 40
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24. Engine - Engine and crankcase
Engine - Install
1. Lift the engine at prescribed three points by using suit-
able chains. Position the engine on the front axle sup-
port. Assemble two bodies by using 4 safety bolts.
2. Shift the rotating stand from under the differential case
towards engine oil sump. Place a suitable wooden
block between the stand and engine block.
3. Connect the lower connection hose of the radiator to
the water pump secure both ends of the hose with suit-
able clamps.
4. Install the metal clamps securing the turbocharger con-
nections.
5. Install engine air intake hose connections located on
the intake line.
6. Make the connections of turbocharger.
7. Insert the fixed stand under the front ballast and secure
the front wheels with wooden blocks.
8. Install ten bolts fixing the engine to the transmission.
9. Position a fixed stand under the drawbar support.
10. Install the 4WD and guard.
11. Place a wooden block between the stands and tractor.
12. Connect the 4WD shaft and install the guard.
13. Make the electrical connections to fuel float and install
the fuel return line connection.
14. Use suitable sealants for matching surfaces of the en-
gine. Use suitable sealants for studs of the engine.
Place suitable gaskets on the studs of the engine.
15. Connect delivery lines of the hydrostatic steering
pump.
16. Install oil reservoir connection hose.
17. Install the delivery lines of hydraulic lift pump.
18. Make fuel line connection on the delivery pump.
19. Connect the hand throttle and accelerator pedal ca-
bles to the pump.
20. Install electrical connection wire of the hood.
21. Refit the front ballast together with the support.
22. Fill the radiator coolant.
23. Connect the battery pole clamps.
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25. Engine - Engine and crankcase
Engine - Disassemble
WARNING
Heavy objects!
Lift and handle all heavy components using lifting equipment with adequate capacity. Always support
units or parts with suitable slings or hooks. Make sure the work area is clear of all bystanders.
Failure to comply could result in death or serious injury.
W0398A
1. Drain the engine oil. Take the engine assembly on to
a suitable stand using such equipment as chains and
hooks (1).
ANIL15TRO0072AB 1
2. Remove the oil filter (1).
ANIL15TRO0073AB 2
3. Remove the bolts (1) fixing the fan unit and water pump
pulley.
ANIL15TRO0074AB 3
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27. Engine - Engine and crankcase
4. Loosen the alternator fixing bolts (1).
ANIL15TRO0075AB 4
5. Loosen the belt tensioner adjusting bolt (1).
ANIL15TRO0076AB 5
6. Remove the engine belts (1). (Compressor, A/C and
fan belt).
ANIL15TRO0077AB 6
7. Remove the alternator (1) from its housing on engine
block.
ANIL15TRO0078AB 7
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28. Engine - Engine and crankcase
8. Remove the lower pipe piece (1) and paper gasket (2)
of the water pump.
ANIL15TRO0079AB 8
9. Remove the water pump and fan pulley (1) fixing bolts
(2).
ANIL15TRO0080AB 9
10. Remove the water pump and fan pulley (1).
ANIL15TRO0081AB 10
11. Unscrew the fixing bolts (2) and remove the coolant
pump (1) together with the gasket.
ANIL15TRO0082AB 11
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29. Engine - Engine and crankcase
12. Remove the bolts (1) of the thermostat housing and
remove the thermostat housing.
ANIL15TRO0083AB 12
13. Remove the bolts of the pump support (1) and silencer
support and take out both brackets.
ANIL15TRO0084AB 13
14. Install support number 380000313 (1) on the engine in
order to allow the engine to be fixed to rotating stand
no 380000201.
ANIL15TRO0085AB 14
15. Insert a plug (1) at the position where the silencer
support is fixed at the front side of the engine. Lift the
engine from the wooden platform and carry to stand no
380000301 (2). Fix the engine together with bracket
(3).
ANIL15TRO0086AB 15
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30. Engine - Engine and crankcase
16. Remove the turbocharger oil return pipe connection
(1).
ANIL15TRO0087AB 16
17. Remove the turbocharger lubrication oil supply pipe
connection (1).
ANIL15TRO0088AB 17
18. Remove the turbocharger oil return pipe (1).
ANIL15TRO0089AB 18
19. Remove the turbocharger unit (1) entirely.
ANIL15TRO0090AB 19
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31. Engine - Engine and crankcase
20. Take out the exhaust manifold (1).
ANIL15TRO0091AB 20
21. Remove and separate air hose connection (1) con-
nected to LDA valve of intake manifold.
ANIL15TRO0092AB 21
22. Remove the bolts (1) fixing the intake manifold to en-
gine and take out the intake manifold.
ANIL15TRO0093AB 22
23. Remove the connections (1) on lift pump and take out
the fuel lines.
ANIL15TRO0094AB 23
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