Same Explorer II Special 70 75 80 85 90 95 - Workshop Manual

WORKSHOP MANUAL
EXPLORER II Special
70 - 75 HP
80 - 85 - 90 - 95 HP

WORKSHOP MANUAL
EXPLORER II Special
70 - 75 HP
80 - 85 - 90 - 95 HP
Introduction
This publication is addressed to the specialised technicians who work on our tractors.
It contains all the general information about the tractors, with particular emphasis on checking, overhaul and adjust-
ment operations, as well as general removal and refitting procedures.
The workshop manual is the obvious text for technicians attending the annual courses held at our training centre as it
contains the information required to enable them to work safely and effectively on the tractor.
It also provides a useful reference work for trained technicians seeking confirmation on the correct procedures; we
therefore recommend that all authorised service centres keep a copy of this manual ready to hand for consultation
whenever necessary.
We wish to thank all those who have contributed by offering their suggestions for corrections and improvements to our
publications.
CAUTION: For instruction on engine servicing procedures, testing and adjustment,
please to the refer specific manual for SDFG engines code 307.1072.3.5
Head Offices:
V.le Ing. F. Cassani, 15
24047 Treviglio (BG)
Tel. 0363/4211
Telex: 311472 Samtra I

Der Nachdruck des Textes und der Abbildungen ist, auch auszugsweise, verboten.
La reproduction du présent ouvrage, du texte et des ìllustratìons, mème partìelle est interdite.
Text and illustrations herewith enclosed may not be reproduced, not even in part and by any means.
E’ vietata la riproduzione, anche parziale, del testo e delle illustrazioni.
Se prohibe la reproducciòn total o parcial del texto y de las ilustraciones.
A proibida a reproduçào, até mesmo parcial, do texto e das ilustracòes.
Der zeitliche Unterschied zwischen der Aktualisierung der Druckschriften und der Durchführung technischer
Veränderungen (die ständig vorgenommen werden, um immer hochwertigere Erzeugnisse auf den Markt zu bringen)
erfordern aus Gründen der Korrektheit des Hinweises, dass die in dieser Ausgabe enthaltenen Daten jederzeit geändert
werden können und deshalb unverbindlich sind.
Le temps qui s’écoule entre la mise à jour en impression et les modifications techniques (ces dernières changeant con-
tinuellement afin d’offrir aux utilisateurs des produits toujours plus qualifiés) nous oblige a vous signaler que les données
de la présente publication pourraient être susceptibles de variations. Elles sont données sans engagement de notre part.
Because of the possible time lag between the introduction of technical modifications (an on-going process the aim of
which is to offer products which are being continually improved) and the latest update of the manual, we must point
out, for the sake of correctness, that the data contained in this edition are liable to change at any time and are therefore
not binding.
La differenza tra i tempi di aggiornamento in stampa e i tempi delle modifiche tecniche (variando queste ultime continu-
amente, ciò al fine di offrire prodotti sempre più qualificati) impongono di dichiarare, per correttezza, che i dati conte-
nuti nella presente edizione sono suscettibili di variazione in qualsiasi momento e che quindi non sono impegnativi.
La diferencia entre los tiempos necesarios para poner al dia la impresiòn y los tiempos de las modificaciones tècnicas
(las que se verifican continuamente, con el objeto de ofrecer productos cada vez màs calificados) nos imponen declarar,
por corrección, que los datos contenidos en la presente ediciòn estàn sujetos a variaciones en cualquier momento y
que portanto no son obligativos.
A diferença entre os tempos necessãrrios para actualizar a impressão e os tempos das modificacões técnicas (que se
verificam continuamente, a fim de oferecer um produto cada vez mais qualificado), obrigam-nos a declarar, que os dados
contidos neste manuel são susceptiveis de variacão em qualquer momento e que portanto não são vinculatórios.

00-1
INTRODUCTION
The purposeof this workshop manual is toprovideinstructionforrepairtechnicians and
a practical guide for improving the quality of repairs.
This manual enables repair technicians to acquire a thorough knowledge of the
machine,indicatingthe correctmethodsforfaultdiagnosis,forworkingin safety and for
accurate dimensional checks and visual inspections. The instructions also indicate the
products to use, the tightening torques and the adjustment data.
The technical material contained in this manual is reserved for Authorised Dealers and
Service Centres which will bedulyinformed of any technical changes to themachines in
question through the issue of documents regarding modifications, updates and
supplements for optional equipment.
All technicians and their colleagues are expressly forbidden from reproducing any part
of this manual in any form or from communicating the contents to third parties without
the express written permission of the Manufacturer, who remains the sole owner of this
document with all rights reserved in accordance with applicable laws.
INTRODUCTION

00-3
GENERAL SAFETY RULES
SAFETY NOTES
To ensure that machines entrusted to Authorised Service Centres for repair or overhaul continue
tofunctioncorrectly,itisveryimportantthatallrepairworkiscarriedoutintheprescribedmanner.
The procedures for checks and repairs indicated in this manual are safe and effective.
Some of the operations described require the use of special tools and equipment; these tools
have been specifically designed for the intended purpose and may be ordered directly from the
Manufacturers.
DO NOT USE MAKESHIFT TOOLS; not only is there a risk of personal injury, but such tools are
rarely suited to the purpose for which they are used.
To prevent injury to operators, the symbols and are used in this manual to indicate the
safety precautions required. The warnings accompanying these symbols must always be
adhered to carefully.
Inpotentially hazardous situations, always givepriority to personal safety and takethenecessary
actions to eliminate the danger.
1 - Even if you have a thorough knowledge of the machine as regards its
components, operation and controls, always take particular care when
carrying out manoeuvres; remember that the machine you are working on
isinneedofrepairoroverhaulandconsequentlymaynotalwaysbehaveas
expected.
2 - Before starting work, clean the machine thoroughly to remove all mud,
dust and road dirt. Also clean the cab to remove all traces of oil, snow and
ice from the access steps and grab rails.
3 - When climbing up to or down from the cab, always ensure you maintain
three points of contact at a time (foot or handholds) in order to keep your
balance and prevent accidental falls.
4 - Always take special care when carrying out fault diagnosis operations;
these operations often require two persons, who must never stand in front
of the wheels when the engine is running.
5 - When carrying out checks and repairs, wear close-fitting clothing, safety
goggles and protective gloves that are suitable for the task (cleaning,
draining fluids, repairs).
When working near moving parts, long hair should be gathered up and
secured safely under a cap to prevent the risk of entanglement and severe
injury.
6 - Do not allow anyone who is not directly involved in the work to approach
the machine; ensure that they remain at a safe distance.
7 - Keep well clear of moving parts; when the engine is running, some moving
parts are not easily visible and therefore present a risk of entanglement,
even if protected by safety guards.
8 - Ensure that the area is well ventilated before starting the engine in order to
avoid the formation of dangerous concentrations of toxic gases; always
connect suitable fume extraction equipment to the exhaust pipe.

00-4
9 - Under no circumstances start the engine with the safety guards removed;
all repair and adjustment operations must be carried out with the engine
stopped.
10 - Do not top up fuel, oil or coolant levels when the engine is running.
11 - Never smoke and ensure there are no naked flames nearby when topping
up fuel or oil. Always remove the battery from the machine before
recharging.
12 - Before checking or removing the battery, stop the engine and remove the
key from the starter switch.
13 - Remove the battery and recharge in a well-ventilated area where the
temperature exceeds 0°C.
14 - When checking or recharging the battery, do not smoke or allow naked
flames in the vicinity as the hydrogen gas given off by the battery is highly
explosive.
15 - The liquid (electrolyte) contained in the battery is very harmful if it comes
into contact with the skin and the eyes; for this reason, always wear gloves
and safety goggles with side shields when checking or topping up the
battery.
Should any electrolyte accidentallycomeinto contact with yourskin, wash
the affected parts immediately with plenty of water; if electrolyte comes
into contact with your clothing, remove clothing as soon as possible.
In case of accidental ingestion of electrolyte, drink plenty of water, milk or
vegetable oil and take antacids such as magnesium, bicarbonate, etc. and
seek medical attention immediately.
16 - Before working on the electrical systems, always disconnect the battery
terminals.
IMPORTANT!
Always disconnect the negative terminal (-) first and then the positive
terminal (+); when re-connecting the battery on completion of the work,
first connect the positive terminal (+) and then the negative(-).
17 - Before carrying out any arc welding (permitted only on implements
attached to the machine) always disconnect the battery terminals and
unplug all the connectors of the electronic control units and the alternator.
18 - When topping up lubricants, always wear suitable protective gloves.
19 - Do not wear clothing contaminated by engine or hydraulic oil; prolonged
contact with the skin can be harmful and may cause allergic reactions.
20 - Used engine oil and hydraulic oil must be disposed of in a proper manner;
recover used lubricants and dispose of them in accordance with the
applicable regulations.
21 - Before carrying out any work on the hydraulic or pneumatic systems,
discharge all residual pressure from the circuits.
22 - Before carrying out any work on the hydraulic system or engine, allow the
oil and engine coolant to cool down.

00-5
23 - When removing and refitting certain assemblies, it will be necessary to
support the machine; use stands, jacks or blocks capable of supporting
the weight and arrange them in a triangular pattern to prevent the machine
from overturning.
24 - To lift heavy components, use a hoist or crane. Check that
wire ropes, chains or fibre slings are not worn and that hooks are not
damaged.
25 - Always use lifting equipment of suitable capacity for the weight of the
components to be removed. Ensure lifting equipment is attached
correctly.
26 - When lifting or supporting an assembly or component, manoeuvre the
parts slowly and carefully to avoid swinging or collision with other
components.
27 - Never work on components suspended from a hoist or crane.
28 - When removing the retaining bolts of a component that could fall, always
leavetwoopposingboltsinplaceforsafety;beforeremovingtheselasttwo
bolts, attach the component to suitable lifting equipment or position
support blocks.
29 - Any oil or fuel spilled during removal or dismantling operations should be
cleaned up as soon as possible to prevent the risk of slipping and fire.
30 - When refitting electrical wiring looms and wires, ensure that they are
properly secured with their original retaining straps or brackets to prevent
the possibility of damage caused by vibration.
31 - Never insert your fingers or hands to check the alignment between fixing
holes in components; always use a suitable dowel of soft material.
32 - When refitting assemblies or components, always use the tightening
torques specified in the tables; the tightening torques indicated in the
paragraphs regarding assembly/refitting operations have been
determined through experimentation and must be scrupulously adhered
to.
33 - When refitting parts that are subject to vibration or that rotate at high
speed, take particular care when carrying out final installation checks.

00-6
SAFETY PRECAUTIONS FOR REMOVAL AND REFITTING OPERATIONS
★ When removing or refitting parts, always take the following safety
precautions.
1. PRECAUTIONS FOR REMOVAL OPERATIONS
• Unless otherwise indicated, lower the working implement until it rests on
the ground.
• After disconnecting hydraulic andfuel systempipes,always fitplugstothe
open ends of the pipes to prevent ingress of impurities.
• Before removing a cylinder, fully retract the piston and secure it in this
position using a retaining strap.
• Use containers of sufficient capacity when draining oil, coolant or fuel.
• Before removing a part from the machine, check for alignment markings
indicatingthecorrectassemblyposition.Ifnecessary,makenewmarkings
to ensure correct assembly.
• When unplugging electrical connectors, always grip the connectors firmly
to avoid pulling on the wires.
• Where necessary, label wires and pipes before removal to avoid confusion
when reconnecting.
• Check the number and thickness of any shims removed and keep them
together in a safe place.
• To lift the machine or any of its main components, use lifting equipment of
suitable capacity.
• When using eyebolts for lifting components, first check that they are not
bent or damaged; screw them fully home and then turn the bolt so that the
eye is aligned with the lifting hook.
• Beforeremoving apart,cleanthesurrounding area and,afterremoving the
part, cover it to protect it from dirt and dust.
2. PRECAUTIONS FOR REFITTING OPERATIONS
• Tighten nuts and bolts to the specified tightening torques.
• When refitting flexible pipes and wires, take care not to twist or tangle
them.
• Always fit new seals, O-rings, split pins and safety stop rings; make sure
that the ends of the split pins are separated and bent back so that the pin
cannot be withdrawn from the hole.
• Ensure that circlips are correctly installed in their seatings.
• When applying threadlocking compound, first clean the part removing all
oil and grease, then cover the thread evenly applying a few drops of the
compound.

00-7
• When applying sealant,first clean the surface removing all traces of oil and
grease and check for dirt or indentations, then apply the sealant evenly
making sure that it forms a continuous film around any fixing holes.
• Clean all parts, removing dirt, oxidisation, carbon deposits, burrs and
indentations.
• Coat all moving parts with a thin film of engine oil.
• Whenreconnectingelectricalconnectors,firstremovealltracesofoil, dust
and water from the inside of the connector and then push the two halves
together firmly; connectors with locking tabs should be pushed together
until the tab engages the keeper.
• Bolt down flanged fittings evenly, tightening the bolts gradually in a
crosswise pattern.
3. PRECAUTIONS TO BE TAKEN ON COMPLETION OF REMOVAL/REFITTING OPERATIONS
• If coolant has been drained from the engine, refit the drain plug and add
new coolant to the correct level. Start the engine to circulate the coolant
and then check the level again and top up.
• After removing hydraulic components, top up the hydraulic oil to the
specified level. Start the engine to circulate the oil in the hydraulic circuits
and then recheck the level and top up as necessary.
• After having removed a variable displacement pump, connect the drain
pipe and fill the pump casing with oil through the filler hole provided.
• Grease stub axle housings, cylinder pivot mountings and drive shafts
thoroughly after assembly.

00-8
LIFTING INSTRUCTIONS
Components weighing over 25 kg or of significant size must be supported and removed using suitable lifting
equipment with wire rope or polyester slings.
In the paragraphs regarding removal and refitting operations, the weight of the component or assembly to be lifted is
indicated with the symbol
WIRE ROPES - SLINGS
• Use wire ropes or polyester slings of suitable capacity for the parts to be lifted, referring to the following tables:
NOTE. Lifting capacities are calculated with a safety coefficient.
• The lifting hook should be attached to the central part of the rope or sling; if the hook is attached near the ends of the
rope/sling, this could cause the load to slip during lifting.
• Never lift a heavy load using a single rope; always use two or more symmetrically arranged ropes.
Suspension of a load from a single rope could cause the load to start rotating and consequently cause the rope
strands to untwist or the load to slip; this could lead to serious injury.
• Never lift a heavy load when the two legs of the ropes form a wide angle.
Thepermitted load (kg)decreases ininverseproportiontothe angleofsuspension;thetablebelow indicates howthe
permitted load varies according to the angle of suspension for two Ø 10 mm ropes each with a load capacity of
1000 kg.
WIRE ROPES
(standard twisted «S» or «Z» type)
POLYESTER SLINGS
(eye-and-eye - simple loop)
Ø rope
mm
Capacity (kg)
Width
(mm)
Capacity (kg)
8
10
12
14
16
18
650
1000
1450
2000
2600
3300
620
1740
2500
3460
4500
5710
500
1420
2050
2820
3670
4660
25
50
62
75
100
150
500
1000
1250
1400
2000
2500
400
800
1000
1120
1600
2000
860
1730
2160
2420
3460
4330
700
1410
1760
1980
2820
3530
60° 90° 60° 90°
30° 60° 90° 120° 150°
1000
2000
2000
1900
1700
1400
1000
500
Angle of suspension: ␣
Load
capacity:
kg
LIFTING INSTRUCTIONS

00-9
HOW THE MANUAL IS STRUCTURED
SECTION 00 Contains the general safety rules, information on how to use and update
the manual, the symbols used, the products required, the standard
tightening torques and a conversion table for units of measurement.
SECTION 10 Contains technical descriptions and information regarding the
mechanical and hydraulic operation of machine components, the
designations of the various components, hydraulic diagrams and general
technical data.
SECTION 30 Contains the methods, checks and adjustments regarding the external
components; the operations dealt with in this section do not require
removal of the various assemblies that form the tractor frame and cab.
SECTION 40 Contains information and diagrams regarding the machine's electrical
and electronic systems
CAUTION!
This manual does not contain information and instructions regarding the engine, which
can be found in the following manuals:
Engine 1000/3/4/6
307.1103.1.5 Italian
307.1103.5.5 German
307.1103.3.5 English
307.1103.2.5 French
307.1103.4.5 Spanish
307.1103.7.5 Portuguese
HOW THE MANUAL IS STRUCTURED

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