Case ih jx1075 n tractor service repair manual

MDB1965A
JX1060V -- JX1070V -- JX1075V --
JX1070N -- JX1075N TRACTORS
SERVICE MANUAL
SECTIONS
GENERAL GUIDELINES 00. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSMISSIONS 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRIVE LINES 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT MECHANICAL TRANSMISSION 25. . . . . . . . . . . . . . . . . . . . . . . . . .
REAR MECHANICAL TRANSMISSION 27. . . . . . . . . . . . . . . . . . . . . . . . . . .
POWER TAKE-OFF 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BRAKES 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HYDRAULIC SYSTEMS 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STEERING 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXLE AND WHEELS 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAB AIR CONDITIONING SYSTEM 50. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEM 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CAB 90. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T E C H N I C A L S U P P O R T

INTRODUCTION
◊ This manual is divided into sections identified by two--figure numbers and each section has independent page
numbering.
For easy reference, these sections have the same numbers and names as the Repairs Rate Book sections.
◊ The different sections can easily be found by consulting the table of contents on the following pages.
◊ The document number of the manual and the edition/update dates are given at the bottom of each page.
◊ Pages updated in the future will be identified by the a document number and by the corresponding issue date.
These pages will be supplemented by a reprint of the updated contents page.
◊ The information contained in this manual was current on the date printed on each section. As CASE IH con-
stantly improves its product range, some information may be out of date subsequent to modifications implem-
ented for technical or commercial reasons, or to meet legal requirements in different countries.
In the event of conflicting information, consult the CASE IH Sales and Service Departments.
IMPORTANT WARNINGS
◊ All maintenance and repair work described in this manual must be performed exclusively by CASE IH service
technicians, in strict accordance with the instructions given and using any specific tools necessary.
◊ Anyone performing the operations described herein without strictly following the instructions is personally re-
sponsible for any eventual injury or damage to property.
◊ The Manufacturer and all organisations belonging to the Manufacturer’s distribution network, including but
not restricted to national, regional or local distributors, will accept no responsibility for personal injury or dam-
age to property caused by abnormal function of parts and/or components not approved by the Manufacturer,
including those used for maintenance and/or repair of the product manufactured or marketed by the Manufac-
turer.
In any case, the product manufactured or marketed by the Manufacturer is covered by no guarantee of any
kind against personal injury or damage to property caused by abnormal function of parts and/or components
not approved by the Manufacturer.
TEXT AND ILLUSTRATIONS ARE THE PROPERTY OF
CNH ITALIA S.p.A.
No part of the text or illustrations
may be reproduced
PRINTED IN ITALY
CNH ITALIA S.p.A. -- Viale delle Nazioni, 55 -- 41100 MODENA -- Italy
TECHNICAL SUPPORT -- Technical Information
Print No. 6--62730 -- 04 -- 2004 -- 200

SECTION 00 -- GENERAL GUIDELINES -- CHAPTER 1 3
6-62730 -- 04 -- 2004
SAFETY REGULATIONS
PAY ATTENTION TO THIS SYMBOL
This warning symbol points out important messages
concerning your safety.
Carefully read the following safety regulations and
observe advised precautions in order to avoid poten-
tial hazards and safeguard your health and safety.
In this manual the symbol is accompanied by the fol-
lowing key--words:
CAUTION -- Warnings concerning unsuitable repair
operations that may jeopardise the safety of Service
personnel.
DANGER -- Specific warnings concerning potential
hazards for operator safety or for other persons di-
rectly or indirectly involved. 1
ACCIDENT PREVENTION
Most accidents or injuries that occur in workshops
are the result of non--observance of simple and fun-
damental safety regulations. For this reason, IN
MOST CASES THESE ACCIDENTS CAN BE
AVOIDED by foreseeing possible causes and conse-
quently acting with the necessary caution and care.
Accidents may occur with all types of vehicle, regard-
less of how well it was designed and built.
A careful and judicious service technician is the best
guarantee against accidents.
Precise observance of the most basic safety rule is
normally sufficient to avoid many serious accidents.
DANGER. Never carry out any cleaning, lubrication
or maintenance operations when the engine is run-
ning.
SAFETY REGULATIONS
GENERAL GUIDELINES
-- Carefully follow specified repair and mainten-
ance procedures.
-- Do not wear rings, wristwatches, jewellery, un-
buttoned or loose articles of clothing such as:
ties, torn clothing, scarves, open jackets or shirts
with open zips that may remain entangled in
moving parts. It is advised to wear approved
safety clothing, e.g.: non--slip footwear, gloves,
safety goggles, helmets, etc.
-- Do not carry out repair operations with someone
sitting in the driver’s seat, unless the person is a
trained technician who is assisting with the oper-
ation in question.
-- Do not operate the vehicle or use any of the im-
plements from different positions, other than the
driver’s seat.
-- Do not carry out operations on the vehicle with
the engine running, unless specifically indicated.
-- Stop the engine and check that the hydraulic cir-
cuits are pressure--free 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. Any
parts that are to be raised must be locked in posi-
tion.
-- Do not check or fill fuel tanks, accumulator bat-
teries, nor use starting liquid when smoking or
near naked flames, as these fluids are inflam-
mable.
-- Brakes are inoperative when manually released
for repair or maintenance purposes. Use blocks
or similar devices to control the machine in these
conditions.
-- The fuel nozzle should always be in contact with
the filling aperture. Maintain this position until fill-
ing operations are completed in order to avoid
possible sparks caused by the accumulation of
static electricity.
-- Only use specified towing points for towing the
tractor. Connect parts carefully. Make sure that
all pins and/or locks are secured in position be-
fore applying traction. Never remain near the
towing bars, cables or chains that are operating
under load.
-- Transport vehicles that cannot be driven using a
trailer or a low--loading platform trolley, if avail-
able.

4 SECTION 00 -- GENERAL GUIDELINES -- CHAPTER 1
6-62730 -- 04 -- 2004
-- When loading or unloading the vehicle from the
trailer (or other means of transport), select a flat
area capable of sustaining the trailer or truck
wheels. Firmly secure the tractor to the truck or
trailer and lock the wheels in the position used by
the carrier.
-- Electric heaters, battery--chargers and similar
equipment must only be powered by auxiliary
power supplies with efficient ground insulation to
avoid electrical shock hazards.
-- Always use suitable hoisting or lifting devices
when raising or moving heavy parts.
-- Take extra care if bystanders are present.
-- Never pour petrol or diesel oil into open, wide or
low containers.
-- Never use petrol, diesel oil or other inflammable
liquids as cleaning agents. Use non--inflam-
mable, non toxic commercially available sol-
vents.
-- Wear safety goggles with side guards when
cleaning parts with compressed air.
-- Limit the air pressure to a maximum of 30.45 psi
(2.1 bar), according to local regulations.
-- Do not run the engine in confined spaces without
suitable ventilation.
-- Do not smoke, use naked flames, or cause
sparks in the area when fuel filling or handling
highly inflammable liquids.
-- Never use naked flames for lighting when work-
ing on the machine or checking for “leaks”.
-- All movements must be carried out carefully
when working under, on or near the vehicle.
Wear protective equipment: helmets, goggles
and special footwear.
-- When carrying out checks with the engine run-
ning, request the assistance of an operator in the
driver’s seat. The operator must maintain visual
contact with the service technician at all times.
-- If operating outside the workshop, position the
vehicle on a flat surface and lock in position. If
working on a slope, lock the vehicle in position.
Move to a flat area as soon as is safely possible.
-- Damaged or bent chains or cables areunreliable.
Do not use them for lifting or towing. Always use
suitable protective gloves when handling chains
or cables.
-- Chains should always be safely secured. Make
sure that the hitch--up point is capable of sustain-
ing the load in question. Keep the area near the
hitch--up point, chains or cables free of all by-
standers.
-- Maintenance and repair operations must be car-
ried out in a CLEAN and DRY area. Eliminate any
water or oil spillage immediately.
-- Do not create piles of oil or grease--soaked rags
as they represent a serious 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
check that there are no persons within the tractor
or implement range of action.
-- Do not keep into your pockets any object which
might fall unobserved into the tractor’s inner
compartments.
-- In the presence of protruding metal parts, use
protective goggles or goggles with side guards,
helmets, special footwear and gloves.
-- When welding, use protective safety devices:
tinted safety goggles, helmets, special overalls,
gloves and footwear. All persons present in the
area where welding is taking place must wear
tinted goggles. NEVER LOOK DIRECTLY AT
THE WELDING ARC WITHOUT SUITABLE
EYE PROTECTION.
-- Metal cables tend to fray with repeated use. Al-
ways use suitable protective devices (gloves,
goggles, etc.) when handling cables.
-- Handle all parts carefully. Do not put your hands
or fingers between moving parts. Always wear
suitable safety clothing -- safety goggles, gloves
and shoes.
START UP
-- Never run the engine in confined spaces that are
not equipped with adequate ventilation for ex-
haust gas extraction.
-- Never bring your head, body, arms, legs, feet,
hands, fingers near fans or rotating belts.
ENGINE
-- Always loosen the radiator cap slowly before re-
moving it to allow any remaining pressure in the
system to be discharged. Filling up with coolant
should only be carried out with the engine
stopped or idling (if hot).
-- Never fill up with fuel when the engine is running,
especially if hot, in order to prevent the outbreak
of fire as a result of fuel spillage.
-- Never check or adjust fan belt tension when the
engine is running.
Never adjust the fuel injection pump when the ve-
hicle is moving.

SECTION 00 -- GENERAL GUIDELINES -- CHAPTER 1 5
6-62730 -- 04 -- 2004
-- Never lubricate the vehicle when the engine is
running.
ELECTRICAL SYSTEMS
-- If it is necessary to use auxiliary batteries, re-
member that both ends of the cables must be
connected as follows: (+) with (+) and (--) with(--).
Avoid short--circuiting the terminals. GAS RE-
LEASED FROM BATTERIES IS HIGHLY IN-
FLAMMABLE. During charging, leave the bat-
tery compartment uncovered to improve
ventilation. Never check the battery charge using
“jumpers” (metal objects placed on the ter-
minals). Avoid sparks or flames near the battery
zone. Do no smoke to prevent explosion haz-
ards.
-- Before servicing operations, check for fuel or
current leaks. Eliminate any eventual leaks be-
fore proceeding with work.
-- Never charge batteries in confined spaces. Make
sure that there is adequate ventilation in order to
prevent accidental explosion hazards as a result
of the accumulation of gases released during
charging operations.
-- Always disconnect the batteries before perform-
ing any kind of servicing on the electrical system.
HYDRAULIC SYSTEMS
-- A liquid leaking from a tiny hole may be almost
invisible but, at the same time, be powerful
enough to penetrate the skin. Therefore, NEVER
USE HANDS TO CHECK FOR LEAKS. Use a
piece of cardboard or wood for this purpose. If
any liquid penetrates skin tissue, call for medical
aid immediately. Failure to treat this condition
with correct medical procedure may result inseri-
ous infection or dermatosis.
-- In order to check the pressure in the system use
suitable instruments.
WHEELS AND TYRES
-- Check that the tyres are correctly inflated at the
pressure specified by the manufacturer.
Periodically check for possible damage to the
rims and tyres.
-- Stand away from (at the side of) the tyre when
checking inflation pressure.
-- Only check pressure when the tractor is un-
loaded and the tyres are cold, to avoid incorrect
readings as a result of over--pressure. Do not
reuse parts of recovered wheels as improper
welding, brazing or heating may weaken the
wheel and make it fail.
-- Never cut or weld a rim mounted with an inflated
tyre.
-- To remove the wheels, lock both the front and
rear vehicle wheels. After having raised the ve-
hicle, position supports underneath, according to
regulations in force.
-- Deflate the tyre before removing any object
caught in the tyre tread.
-- Never inflate tyres using inflammable gases; as
this may result in explosions and injury to by-
standers.
REMOVAL AND INSTALLATION
-- Lift and handle all heavy parts using suitable ho-
isting equipment. Ensure that parts are sup-
ported by appropriate slings and hooks. Use lift-
ing eyes provided to this purpose. Extra care
should be taken if persons are present near the
load to be lifted.
-- Handle all parts carefully. Do not put your hands
or fingers between parts. Wear suitable safety
clothing, safety goggles, gloves and footwear.
-- Avoid twisting chains or metal cables. Always
wear safety gloves when handling cables or
chains.

SECTION 10 -- ENGINE -- CHAPTER 1 1
6-62730 -- 04 -- 2004
SECTION 10 -- ENGINE
Chapter 1 -- Engine
CONTENTS
Section Description Page
10 000 General specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main data 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque settings 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tools 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sections 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication and cooling system diagrams 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 001 10 Engine. Removal -- Installation 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 001 30 Compression. test 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 001 54 Engine. Disassembly -- Assembly 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 101 53 Valve guides. Replacement 76. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 101 60 Injector sleeve. Replacement 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 102 70 Front engine oil seal. Removal -- Installation 81. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 106 12 Valve--rocker arm clearance adjustment 83. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 216 10 Fuel tank. Removal -- Installation 86. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 218 30 Engine injector. Removal -- Installation 88. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 246 14 Bosch injection pump. Removal, installation, timing check and air bleeding 89. . . . . . . . . . .
10 254 44 Exhaust pipe. Removal -- Installation 96. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 402 11 Coolant pump. Removal and installation with radiator removed 97. . . . . . . . . . . . . . . . . . . . .
10 402 28 Coolant pump. Overhaul 98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 402 30 Thermostat valve. Removal -- Installation 99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 406 10 Radiator. Removal -- Installation 100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 SECTION 10 -- ENGINE -- CHAPTER 1
6-62730 -- 04 -- 2004
GENERAL SPECIFICATIONS
Engine, technical type:
-- Mod. JX1060V -- type 8035.05C.925/929 (BOSCH pump) . . . . . . . . . . . . . . See data on page 6--7
-- Mod. JX1070V and JX1070N -- type 8035.25R.925/929 (BOSCH pump) . . See data on page 8--9
-- Mod. JX1075V and JX1075N -- type 8035.25.925/929 (BOSCH pump) . . . See data on page 10--11
Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . diesel, 4--stroke
Fuel injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . direct
Number of cylinders in line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Cylinder liners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dry force--fitted in cylinder
block
Piston diameter
-- Mod. JX1060V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0944 in. (104 mm)
-- Mod. JX1070V and JX1070N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0944 in. (104 mm)
-- Mod. JX1075V and JX1075N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0944 in. (104 mm)
Piston stroke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5275 in. (115 mm)
Total displacement:
-- Mod. JX1060V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178.84 in3 (2931 cm3)
-- Mod. JX1070V and JX1070N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178.84 in3 (2931 cm3)
-- Mod. JX1075V and JX1075N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178.84 in3 (2931 cm3)
Compression ratio for Mod. JX1060V, JX1070V and JX1070N . . . . . . . . . . . . . . 17:1 normally aspirated
Compression ratio for Mod. JX1075V and JX1075N . . . . . . . . . . . . . . . . . . . . . . . 16.5:1 turbocharged
Maximum power:
-- Mod. JX1060V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.5 kW (59 Hp)
-- Mod. JX1070V and JX1070N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 kW (72 Hp)
-- Mod. JX1075V and JX1075N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55.5 kW (76 Hp)
Maximum power speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2300 rpm
Maximum torque speed for Mod. JX1060V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1400 rev/min
Maximum torque speed for Mod. JX1070V and JX1070N . . . . . . . . . . . . . . . . . . 1400 rev/min
Maximum torque speed for Mod. JX1075V and JX1075N . . . . . . . . . . . . . . . . . . 1400 rev/min
Number of main bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . structural, cast iron
(continued)

6-62730 -- 04 -- 2004
1
2
345
6
7
25355
3
Longitudinal section of engine (mod. JX1060V).

6-62730 -- 04 -- 2004
25356
4
Cross--section of engine (mod. JX1060V).

6-62730 -- 04 -- 2004
5
5335B
1
2
3
4
5
6
7
8
6
1
3
8
5335A
Enginelubricationsystemdiagram
1.Oilfillercap--2.Filtersafetyvalve(openswhenoilpressureatfilterinletexceedstheoutletpressureby1.5--1.7bar/cm2)--3.Filter--
4.Enginelubricationoillowpressureindicatorlampswitch(locatedonthedashboard)--5.Dipstick--6.Pump--7.Oilpressurelimitingvalve--
8.Meshfilteronintake

6-62730 -- 04 -- 2004
1 2
3
4
56
25363
a b
6
Engine cooling system circuit diagram.
A. Coolant circulation with thermostat valve
closed
B. Coolant circulation with thermostat valve open
1. Thermostat
2. Pump
3. Electric thermometer for engine coolant
temperature
4. Temperature transmitter
5. Fan
6. Radiator

6-62730 -- 04 -- 2004
Op. 10 001 10
ENGINE Removal--Installation
DANGER
Lift and handle all heavy parts using suitable lifting
equipment.
Make sure that assemblies or parts are supported by
means of suitable slings and hooks. Check that no
one is in the vicinity of the load to be lifted.
CAUTION
Always use appropriate tools to align fixing holes.
NEVER USE FINGERS OR HANDS.
Proceed as follows.
1. Carry out operation 90 150 10 Cab with platform
unit, only removal (see Sect. 90) (models with
cab).
NOTE: Make sure that the bracket 380001613 lock-
ing the front axle in relation to theengine ispositioned
and secured between the above.
2. Carry out operation 90 110 36 Platform assembly
only removal (see Sect. 90) (models with plat-
form).
3. Carry out operation 90 114 20 Front roll bar, only
removal (see Sect. 90) (models with platform).
4. Unscrew the plug and drain the oil from the rear
transmission casing (the prescribed quantity is
11.09 US gal. (42 litres)).
25628
7
5. Disconnect the electrical connections (2) and re-
move the front guard (1) by sliding forwards.
8

6-62730 -- 04 -- 2004
6. If the tractor is not fitted with an extra fuel tank,
disconnect the piping (1) and drain the fuel from
the main tank.
7. If the tractor is fitted with a platform the coolant
must be drained.
9
8. Disconnect the fuel return piping (1).
10
9. Remove the clamp (1) and detach the radiator
sleeve (2), unscrew the radiator retainingbracket
(3).
11
10. Disconnect the connecting pipe (1) between the
main fuel tank and the extra fuel tank.
12

6-62730 -- 04 -- 2004
11. Unscrew the brake control piping (1) on the front
axle.
13
12. Disconnect the hydrostatic steering piping (1).
14
13. Disconnect the steering sensor wire, loosen the
hose and wire retaining clamps (1) on the radi-
ator.
15
14. Loosen the clamp and disconnect the fuel injec-
tion pump hose (1).
16

6-62730 -- 04 -- 2004
15. Unscrew the clamp (1) to release the sleeve (2)
from the turbocharger.
16. Disconnect the electrical connections (1) on the
clogged air filter sensor.
17
17. Unscrew the clamp and remove the sleeve (1) on
the relative rigid pipe (2).
18
18. Loosen the hydraulic pump line piping bolts (1).
19
19. Loosen the clamps (1, 3 and 4), unscrew the
bracket retaining bolts (2) and remove the hy-
draulic pump line piping (5).
20

6-62730 -- 04 -- 2004
20. Unscrew the filter piping (1 and 2).
21. Unscrew the services distributor piping (3, 4 and
5).
21
22. Disconnect and remove piping (1, 2, 3, 4, 5 and
6).
23. Carry out operation 10 254 44 Exhaust pipe, only
removal (see Sect. 10).
22
24. Disconnect the piping (2), unscrew the clamp (1),
the piping/clutch housing retaining bolt, and re-
move piping (1 and 3).
23
25. Remove the guard (2) and disconnect the starter
motor wires (1), disconnect the pipe (4).
26. Remove the retaining clamp and disconnect the
engine electrical wires, place the wires (2 and 3)
on the clutch casing.
24

6-62730 -- 04 -- 2004
27. Disconnect the brake piping (1) from the block.
28. Carry out operation 23 101 26 Propeller shafts
and guard, only removal (see Sect. 23).
25
29. Position an hydraulic jack under the rear axle, at-
tach the motor to a hoist, using a chain, and place
a stand under the clutch casing.
30. Unscrew the front axle -- engine retaining bolts
(1).
26
31. Remove the front axle, complete with support,
tanks, radiator and air filter.
27
32. Unscrew the bolt (2) accessing the Allen screw
(1) (on both sides).
28

6-62730 -- 04 -- 2004
33. Unscrew all of the clutch casing -- engine bolts
and detach the engine.
34. To re--fit the engine, proceed as follows.
CAUTION
Always use appropriate tools to align fixing holes.
NEVER USE FINGERS OR HANDS.
-- Apply the torque settings listed on page 20.
-- Before refitting the engine to the clutch box care-
fully clean the mating surfaces and apply sealing
compound (0.0787 in. (2 mm) diameter), accord-
ing to the diagram shown Section 21, Chapter 1,
page 29.
-- Fit the engine on the clutch casing.
-- Re--fit the front axle support assembly on the en-
gine.
-- Carry out operation 23 101 26 Propeller shafts
and guard, only installation (see Sect. 23).
-- Connect the brake piping.
-- Connect the wires to the starter motor and posi-
tion the other wires on the engine.
-- Assemble all hydraulic pipes and hoses.
-- Carry out operation 10 254 44 Exhaust pipe, only
installation (see Sect. 10).
-- Assemble the hydraulic pump feed piping, com-
plete with the relative support bracket.
-- Connect the lower radiator sleeve to the rigid
pipe.
-- Place the inlet sleeve on the turbocharger and
secure in position.
-- Connect the electrical connections to the
clogged air filter sensor.
-- Connect the injection pump fuel supply piping.
-- Connect the steering sensor wire.
-- Fit the hydrostatic steering piping to the radiator.
29
-- Connect the hydrostatic steering piping.
-- Connect the brake piping on the front axle.
-- Connect and secure the main fuel tank/extra fuel
tank piping.
-- Connect the upper radiator sleeve.
-- Attach the radiator bracket.
-- Connect the fuel return piping to the fuel tank.
-- Position the front guard and connect the head-
lamps and direction indicator electrical connec-
tions.
-- Screw the plug on the rear transmission casing
and fill up with oil (see page 6, Sect. 00 for pre-
scribed products and quantities).
-- Carry out operation 90 114 20 Removable front
roll bar, only re--assembly (see sect. 90) (models
with platform).
-- Carry out operation 90 110 36 Platform assem-
bly, only installation (see Sect. 90) (models with
platform).
-- Carry out operation 90 150 10 Cab with platform
unit, only installation (see Sect. 90) (models with
cab).
-- Fill up the engine cooling system (see page 6,
Sect. 00 for prescribed products and quantities).
-- Fill up the fuel tank (see page 6, Sect. 00 for pre-
scribed products and quantities).
-- Bleed the brakes (see Sect. 33).

6-62730 -- 04 -- 2004
Op. 10 001 30 COMPRESSION TEST
In case of poor engine performance, in addition to
checking the fuel injection system (injection nozzles
and injection pump), also test the compression on
each cylinder.
DANGER
Do not use matches, lighters, blowtorches or any
form of naked flame as a source of light when in-
specting the engine due to the presence of flam-
mable fluids and vapour.
Compression ratio
The compression ratio is a measure of the quantity
of air drawn into the cylinder, and provides an indica-
tion of the efficiency of the sealing elements in the
cylinder (piston rings and valves).
Uniform compression in all the cylinders ensures that
they all perform an equal amount of work, provided
that each cylinder is injected with the same quantity
of fuel at the right time.
Low compression not only reduces engine perform-
ance, it also causes incomplete fuel combustion due
to the lack of available combustion air.
The engine therefore gives poor performance with
excessive fuel consumption and, consequently, ex-
haust smoke and restriction of the exhaust pass-
ages.
As the compression ratio also varies with the tem-
perature of the engine (cold engines produce lower
compression values than hot engines), the compres-
sion should only be tested when the engine is at nor-
mal operating temperature.
Compression should be tested using the compres-
sion test kit 380000303, as follows:
1) run the engine until it reaches normal operating
temperature;
2) switch off the engine;
3) disconnect the lead from the engine stop electro-
magnet on the injection pump in order to close the
valve and block the flow of fuel to the injectors;
4) remove the injector from the cylinder to be tested;
5) turn the engine over a few times with the starter
motor in order to expel any carbon residue;
6) fit the dummy injector 380000617 in place of the
injector removed previously, inserting the copper
sealing washer;
7) connect the compression test instrument
380000303 and take readings while turning the en-
gine over with the starter motor.
On engines in perfect working order, with the sump
oil at approx. 104 °F (40 °C) at sea level (29.9212 in.
(760 mm) mercury) and at an engine speed of 200 to
280 rpm, the compression should be 369.75 to
398.75 psi (25.5 to 27.5 bar).
8) Test the compression on the other cylinders, re-
peating steps 4--5--6--7, bearing in mind that:
The minimum permissible compression on a used
engine is 313.2 psi (21.6 bar).
The maximum permissible compression difference
between cylinders is 43.5 psi (3 bar).
Every 100 metres above sea level corresponds to a
reduction in compression by approx. 1%.
CONSIDERATIONS:
Uniform compression
Although high compression is important, it is more
important for smooth engine running that compres-
sion is uniform in all cylinders.
Low compression readings.
If extremely low pressure readings are obtained on
one cylinder it is advisable to repeat the test.
Before testing this time, pour about a spoonful of en-
gine oil into the cylinder through the injector bore.
Turn over the engine a few times to distribute the oil
evenly over the cylinder walls, and then repeat the
test.
If the second test readings are significantly higher,
suspect worn piston rings, out--of--round or damaged
pistons or liners.
If the second test readings are not higher, the prob-
lem will be the valves.
On the other hand, if the second test reading shows
only a slight improvement, the problem will be due to
both the valves and the rings.

6-62730 -- 04 -- 2004
Op. 10 001 54
ENGINE Disassembly -- Assembly
CAUTION
Handle all parts carefully. Do not put your hands or
fingers between parts. Wear the prescribed safety
clothing, including goggles, gloves and safety foot-
wear.
Proceed as follows.
1. Carry out operation 10 001 10 Engine, only re-
moval (see page 31).
2. Remove the alternator and air conditioning com-
pressor belts (1). 30
3. Unscrew the retaining bolts and remove the ex-
haust silencer (1).
31
4. Unscrew the retaining bolt (2) and move the al-
ternator (1) outwards.
32
5. Loosen the clamp and remove the turbocharger
sleeve (1).
33

6-62730 -- 04 -- 2004
6. Disconnect the turbocharger lubrication piping
(1).
7. Unscrew the retaining bolts and remove the ex-
haust manifold (2) complete with the turbo-
charger (1).
34
8. Unscrew the retaining bolt and remove the alter-
nator.
9. Disconnect and remove the turbocharger (2) lu-
brication piping.
35
10. Unscrew the retaining bolts and remove the lift
pump (1).
11. Unscrew: the oil filter (2), the relative retaining
bolts and remove the filter support (3).
36
12. Unscrew the retaining bolts and remove the ser-
vices pump (1).
37

6-62730 -- 04 -- 2004
13. Unscrew the oil filter (3).
14. Loosen the clamps (2) and remove the heat ex-
changer (4) piping (1), unscrew the retaining
bolts and remove the heat exchanger.
38
15. Unscrew the union (1) and remove the piping (2).
16. Unscrew the retaining bolts and remove the pip-
ing (3).
39
17. Loosen the clamp (2) and remove the oil vapour
recovery device (1).
40
18. Unscrew the retaining bolts and remove the
brake fluid reservoir (2).
19. Disconnect the injector delivery piping (1), both
from the pump and the injectors, and remove.
20. Disconnect the fuel return piping (4) from the in-
jection pump.
21. Disconnect the thermostarter supply piping (3).
41

6-62730 -- 04 -- 2004
22. Disconnect the piping on: the fuel supply pump
(3), injection pump (2) and the connecting piping
(1) between the LDA device to the inlet manifold.
23. Remove the piping (5).
24. Unscrew the retaining bolts and remove the fuel
supply pump (4) and support.
25. Unscrew the fuel filter (6).
26. Make reference marks on the injection pump and
relative support.
42
27. Unscrew the injection pump (2) retaining bolts
(1).
28. Unscrew the retaining bolts and remove the fuel
filter support (3).
43
cover (1).
44
30. Unscrew the nut (2) fastening the injection pump
and, using the extractor 380000322, remove the
pump drive gear (1), retrieving this from the op-
posite side.
45

6-62730 -- 04 -- 2004
31. Unscrew the retaining bolts and remove the inlet
manifold (1).
46
starter motor (1).
47
33. Unscrew the retaining bolts and remove the fan
(1) and relative drive pulley (2).
48
34. Unscrew the retaining bolts and remove the cool-
ant pump (1).
49

6-62730 -- 04 -- 2004
35. Unscrew the retaining bolts and remove the cool-
ant pump support (1).
50
36. Unscrew the retaining bolts and remove the ther-
mostat switch (1) and support.
51
37. Using tool 380001760 (1), unscrew the retaining
bolts and remove the clutch (2).
38. With the aid of the brackets 380000313, secure
the engine to the rotating stand 380000301.
27785
52
39. Remove the injector mounting nuts, the underly-
ing spherical washers, then the supports and the
injectors themselves.
40. Remove the retaining bolts (1), washers and
seal, then remove the rocker housing cover (2)
and seal.
25098
2
1
53

6-62730 -- 04 -- 2004
41. Remove the rocker shaft retaining bolts (2), then
remove the entire rocker shaft assembly (1).
25099
1 2
54
42. Remove the valve collets (1) and extract the
pushrods (2).
25100
21
55
43. Unscrew the cylinder head bolts (1) and remove
the head using a hoist and lifting hook
380000216.
44. Remove the cylinder head gasket.
25101 1
56
45. Unscrew the sump pan retaining bolts (4) and re-
move the sump pan using a hoist, lifting hook
380000216 and lifting chain with eyeholes.
46. Remove the half--gaskets (1) and (3) between
the crankcase/sump pan and the gasket (2) be-
tween the timing gear carrier/sump pan.
1
25104
2
3
4
57

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6-62730 -- 04 -- 2004
47. Remove the gasket (1) between the flywheel
carrier and the sump pan.
NOTE: When relocating gaskets (1) and (2, fig. 31),
apply RHODORSIL CAF1 silicone sealing com-
pound to the mating surfaces.
1
25105
58
48. Remove the rotating counterweight oil seal O--
ring (1) installed on the crankcase mating sur-
face.
25106
1
59
49. Unscrew the retaining bolts (1) and remove the
complete oil pump.
25107
1
60
fan--alternator drive pulley (1).
25108
1
2
61

6-62730 -- 04 -- 2004
51. Straighten the lock tab and remove the nut (1),
securing the crankshaft against rotation.
25109
1
62
52. Pull the pulley hub off the crankshaft using tool
380000226 (1) and recover the Woodruff key.
25110
1
63
timing cover and gasket.
25111
1
64
54. Unscrew the retaining bolts and remove the lift
pump drive gear carrier (1).
25112
1
65

6-62730 -- 04 -- 2004
55. Remove the circlip (1) and recover the thrust
washer and the intermediate gear (2):
NOTE: When refitting the intermediate gear see en-
gine timing instructions on page 49.
25113
1 2
66
intermediate gear journal.
25114
1
67
57. Unscrew the retaining bolts (2) and withdraw the
camshaft (3) complete with the camshaft gear(1)
and the end plate (4).
25115
1
4
3
2
68
58. Remove the circlip (1) and the thrust washer, and
withdraw the gear with fuel supply pump cam-
shaft (2) from the opposite side.
NOTE: This gear transmits drive to the injection
pump gear. On re--assembly, see the timing instruc-
tions on page 49.
25108
1
2
69

6-62730 -- 04 -- 2004
timing gear case.
25109
1
70
60. Replace the O--ring seal (1) installed in the lift
pump drive shaft lubrication line.
61. Remove the crankcase -- timing gear case
gasket.
25118
1
71
62. Rotate the engine through 90_, take out the re-
taining bolts (2) and recover the big--end caps (1)
with their bearings.
25119
1
2
72
63. Slide the pistons (1), complete with rings, gudg-
eon pins and connecting rods, out of the cylinder
linings.
25108
1
73

6-62730 -- 04 -- 2004
64. Rotate the engine on the stand through 90_ back
to the horizontal position. Unscrew the flywheel
bolts and remove the flywheel with the aid of a
hoist and hook 380000216.
65. Unscrew the retaining bolts and remove the rear
cover (1) complete with gasket.
25109
1
74
66. Unscrew the main bearing cap bolts (1), and re-
move the main bearing caps with relative bearing
shells, recover the thrust washers located on the
penultimate main bearing, as shown in the draw-
ing.
67. Lift the crankshaft clear of the crankcase using
a hoist and nylon sling. Recover the bearing
shells, thrust washers and tappets.
25122
1
75
68. Turn the engine through 180_ on rotating stand
380000301 (2). Attach the lifting chain with eye-
holes to the crankcase, as shown in the figure.
Slightly tension the chain with the hoist and the
hook 380000216, take out the bolts securing the
crankcase to the rotating stand (2) and bracket
(3) of the 380000313 series.
69. Lift the engine clear of the stand.
70. Unscrew the retaining bolts and remove the rear
crankcase housing (1) and its gasket.
25123
1
23
76

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