Day: May 24, 2019

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Complete workshop & service manual with electrical wiring diagrams for Mitsubishi Fuso FE.FG.FH.FK.FM Series 2002-2004 Trucks. It’s the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

Mitsubishi Fuso FE.FG.FH.FK.FM Series 2002-2004 Trucks service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

4,655 pages, bookmarked, Searchable, Printable, high quality PDF
FE.FG.FH.FK.FM Series 2002-2004 Fuso Service Manual (TWME0103&TWME0202&TWSE0101 – 4,655 pages).pdf

EXCERPT:
ON-VEHICLE INSPECTION AND ADJUSTMENT
• After adjustment, turn the steering wheel to the left (until the knuckle stopper bolt is contacted), then shake tie rod 2 backward and forward in the longitudinal direction of the vehicle and see if the tie rod moves.
Do the same with the steering wheel turned to the right.
(If the tie rod can be moved, it means that tie rod end G and ball stud H are in simultaneous contact.)
Steering wheel turned to the left
Steering wheel turned to the right
WARNING–
You must be careful not to catch your hand when turning the steering wheel to the left or right, since the tie rod moves.
• If tie rod 2 does not swing, redo the procedure from the item marked.
• Point the front wheels exactly forward.
• Remove the hub caps.
• Wipe off grease from the knuckle end, and attach camber/caster/kingpin gauge A to the knuckle.
• While keeping the bubble in level B centered, measure the camber angle by reading the scale mark at the center of the bubble on camber scale C.
Follow this procedure to measure the camber angles on the left and right sides.
(3) Measurement of caster and kingpin inclination angle
• Prepare a platform B having the same height as turning radius gauges A and place the platform under the rear wheels so that the vehicle is kept level.
• Keep the turning radius gauges A locked.
• Jack up the vehicle and set the left and right wheels so that the
ground contact area of both front tires and the turntables of turning radius gauges A meet at their respective centers.
…

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9_91260_FR – Case WX210, WX240 PELLE HYDRAULIQUE Manuel de réparations.pdf
9_91270_EN – Case WX210, WX240 HYDRAULIC EXCAVATOR Service Manual.pdf
9_91280_DE – Case WX210, WX240 HYDRAULIKBAGGER Reparatur Handbuch.pdf
9_91290_SP – Case WX210, WX240 ESCAVADORA HIDRAULICA Manual de reparación.pdf
9_91300_IT – Case WX210, WX240 ESCAVATORE IDRAULICO Manuale per le riparazioni.pdf

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case WX210, WX240 Hydraulic Excavator. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case WX210, WX240 Hydraulic Excavator like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case WX210, WX240 Hydraulic Excavator is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
ELECTRONICS WX210 – WX240
Description
The two diagrams show the characteristics for the left and right joystick.
The characteristics of the Y-axis show the forward and reverse movement of the joystick handle and the change in digit value in relation to the angular deflection.
The characteristics of the X-axis show the transverse movement of the joystick handle.
Digit output starts at a joystick handle deflection of >0.7°.
In the X- and in the Y-axis, 512 digits are put out in the event of full deflection from the zero position.
Functioning principle of joysticks and pedals
Description
The joysticks are manually controlled pulse generators that permit the handle to be swivelled in any direction. The swivelling / pedal movements are picked up by sensors and put out via the interfaces as digital signals.
Joystick/pedal position detection and evaluation
The position of the movement axes is detected contact-free by Hall-effect sensors. Two Halleffect sensors per movement axis are used to ensure that the joystick operates correctly. The plausibility control of the signals is based on redundant signal evaluation, i.e. the internal microcontroller computes from the measured value of a Hall-effect sensor the probable value of the other sensor and then compares the computed with the measured value. If the difference between the two values exceeds a defined tolerance window, a troubleshooting routine comes into force.
During this process, all joystick and pedal functions are deactivated and a re-start of the unit is initiated.
The position of the joystick handle, i.e. the angular deflection into one or more directions, is registered in the same way for all joysticks. Four Halleffect sensors (two for X-direction and two for Ydirection) are mounted on a fixed p.c. board in the joystick housing. An annular magnet is attached to the articulated cardan joint at the top of which the joystick handle is located. On deflection of the joystick handle into one direction, the distance of the annular magnet from the sensors located in movement direction is reduced or increased. The resulting changes in the output voltages of the
Hall-effect sensors are converted by the controller into a digital value and can thus be further processed.
The definitive output signal results as a digital value from conversion, amplification and calibration.
Temperature compensation
Temperature compensation is used to reduce the unavoidable influencing of the signals in their digital / analog conversion through changes in ambient temperature. This compensation is executed subsequent to the A/D conversion in the microcontroller by a software program, with the actual ambient temperature being ascertained by an integrated temperature sensor and used for computation purposes. This procedure ensures high stability of the output signals, irrespective of fluctuations in ambient temperature, in a broad temperature range from -40°C to +85°C.
Power supply
The power supply of the controller is designed for an input voltage ranging from 8V to 30V DC.
It supplies the electronic system with a controlled voltage of 5V.
The 5V supply is monitored by a reset controller. If the supply voltage falls below 4.5V, the reset controller generates a reset signal that resets the supervisory controller (SC) directly. With the resetting of the SC, the main controller (MC) is also automatically reset; it is kept in this state until the SC goes through its initialization procedure again.
Only then is the MC released from the reset status by the SC.
Reverse voltage protection
Joystick/pedals have reverse voltage protection at the inputs. In addition, the inputs of the supply
voltage and the outputs of the circuit are protected against positive and negative voltage peaks by
600W suppressor diodes.
…

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9-53961GB – WX150, WX170 and WX200 Wheeled Excavators Service Manual.pdf – 738 pages
7-8271+R1 (replaces 7-8271) – WX200 Wheeled Excavator Parts Catalog.pdf – 1,432 pages

Complete workshop & service manual with electrical wiring diagrams for Case WX150, WX170, WX200, WX200M Wheeled Excavators. It’s the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Case WX150, WX170, WX200, WX200M Wheeled Excavators service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

EXCERPT:
Service Manual
WX150, WX170 and WX200 wheeled excavators
Table of contents
DIVISION/SECTION SECTION No. REFERENCE No.
1 GENERAL INFORMATION
Safety, general section and standard torque settings ……..1001 *
Specifications (Wheeled excavators)………1002 *
2 ENGINE
Removal and installation of the engine ……2002 9-54130GB
Removal and installation of the engine
WX150 : CGG0228401…, WX170 : CGG0232601…,
WX200 : CGG0231801 …, WX200M : CGG0233301……2002 9-88230GB
Radiator and oil-cooler…….2003 9-53720GB
Engine specifications ………2401 * *
Cylinder head and valve assembly ……2415 * *
Engine block ……….2425 * *
Lubrication circuit ………2445 * *
Cooling circuit ……..2455 * *
Turbocharger……….2465 * *
Analysis of turbocharger failures……….2565 * *
3 FUEL SYSTEM
Fuel circuit and filter………..3410 * *
CAV injection pump……3411 * *
BOSCH injection pump ……3412 * *
Fuel injector ………..3412 * *
BOSCH ANEROID injection pump…….3416 * *
4 ELECTRICAL SYSTEM
Electrical schematics ………4001 *
Electronic system and troubleshooting ……4002 *
Starter motor ……….4003 7-58691GB
Alternator ………4004 7-58701GB
5 UNDERCARRIAGE
6 DRIVE TRAIN
Reduction gear and swing brake Trasmital 705T2…….6003 7-80671GB
Reduction gear and swing brake Trasmital 757T2…….6003 7-84141GB
Front axle and service brake – CARRARO 638LD and 638FR axle ….6004 9-53250GB
Front axle and service brake – CARRARO 652FR axle …..6004 9-53260GB
Rear axle and service brake – CARRARO 852FR axle……6005 9-53270GB
Rear axle and service brake – CARRARO 838LD and 838FR axle …..6005 9-53290GB
Gearbox and parking brake ………..6008 7-80701GB
Twin wheels ………..6020 9-53300GB
7 UNDERCARRIAGE HYDRAULICS
Hydraulic travel motor ……..7003 7-80731GB
One-piece control valve for travel, stabilizers and dozer blade …..7031 9-53620GB
Two section control valve for travel, stabilizers and dozer blade …7031 7-84151GB
Cylinders for steering, stabilizers, dozer blade
and front axle locking (WX200) …….7080 7-79180GB
Cylinders for steering, stabilizers, dozer blade
and front axle locking (WX150-WX170)…….7080 9-53440GB
8 UPPERSTRUCTURE HYDRAULICS
Hydraulic inspections, adjustments and schematics (Wheeled excavators)….8001 *
Hydraulic swivel ………..8011 7-80801GB
High pressure hydraulic pump (WX170 – WX200) …….8020 9-54020GB
High pressure and swing hydraulic pump (WX150)…..8020 9-54030GB
Hydraulic swing pump 28 cc fixed flow (WX170) ………8021 7-27101GB
Hydraulic swing pump 45 cc variable flow (WX200) ….8021 7-79221GB
MARREL attachment control valve ……8031 7-80822GB
REXROTH attachment control valve ………8031 9-53860GB
One-piece swing control valve …….8033 7-79241GB
Two-piece swing control valve …….8033 7-80832GB
Swing control valve (Orbitrol) ………8037 7-80841GB
Hydraulic swing motor and safety and force-feeding block……8040 7-80852GB
Hydraulic fan motor……8041 9-54010GB
Attachment and swing control block ….8050 9-53680GB
Option control block ………..8051 9-53610GB
Direction of travel inverter control block…..8053 7-80290GB
Travel control block ……8054 7-80301GB
Brake unit………8060 9-53570GB
Parking brake electro-control valve……8061 9-54040GB
Electro-control valve block ……8071 9-54120GB
Flow cancellation over-pressure selector block …..8072 7-26651GB
Electro-control valve block DRE4 ……..8073 9-54110GB
Attachment cylinders……….8080 9-53560GB
Safety valves……….8081 7-26641GB
9 UPPERSTRUCTURE
Upperstructure and turntable ………9002 9-53830GB
Cab …………9004 9-53840GB

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9-91211_FR – Case WX145, WX165, WX185 PELLE HYDRAULIQUE Manuel de réparations.pdf
9-91221_EN – Case WX145, WX165, WX185 HYDRAULIC EXCAVATOR Service manual.pdf
9-91231_DE – Case WX145, WX165, WX185 HYDRAULIKBAGGER Reparatur Handbuch.pdf
9-91241_ES – Case WX145, WX165, WX185 ESCAVADORA HIDRAULICA Manual de reparación.pdf
9-91251_IT – Case WX145, WX165, WX185 ESCAVATORE IDRAULICO Manuale per le riparazioni.pdf
84285662 – Case WX145, WX165, WX185 Wheel Excavators Stage IIIA Operator’s Manual.pdf
87677462A – Case WX145, WX165, WX185 Wheel Excavators Repair Manual.pdf

Complete workshop & service manual with electrical wiring diagrams for Case WX145, WX165, WX185 Wheel Excavators. It’s the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Case WX145, WX165, WX185 Wheel Excavators service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

EXCERPT:
INDEX
SECTION 01 – SAFETY PRECAUTIONS
1. GENERAL SAFETY INSTRUCTIONS….. 2
2. USE INSTRUCTION….. 11
SECTION 02 – CONTROLS AND INSTRUMENTS
1. SWITCHES AND PUSH-BUTTONS….. 1
2. CONTROLS AND PEDALS … 7
3. MULTI-FUNCTION DISPLAY …. 10
SECTION 03 – TECHNICAL SPECIFICATIONS
1. MAIN COMPONENTS…. 1
2. DIMENSIONS – OPERATING WEIGHTS… 3
3. DIGGING PERFORMANCE … 11
4. LIFTING CAPACITIES….. 25
4.1 WX 165 MODELS…. 34
4.2 WX 185 MODELS…. 46
5. HYDRAULIC SYSTEM ….. 54
6. ROTATION …. 56
7. TRAVEL… 57
8. TYRES….. 58
9. BRAKES ….. 58
10. STEERING …. 58
11. ELECTRICAL SYSTEM… 58
12. BUCKETS… 59
13. TIGHTENING TORQUES… 60
14. CENTRALIZED LUBRICATION PUMP (OPTIONAL)…. 60
15. FUEL SYSTEM…. 60
16. ENGINE… 61
17. SUPPLY SUMMARIZING CHART… 62
SECTION 04 – UPPER STRUCTURE
1. MAIN COMPONENTS…. 1
2. SLEWING BEARING … 2
3. ROTATION GEARMOTOR… 7
3.1 DISASSEMBLY AND ASSEMBLY … 12
3.2 SPECIAL TOOLS ….. 34
4. MULTI-COOLER….. 35
4.1 TECHNICAL SPECIFICATIONS … 36
5. HYDRAULIC PUMPS …. 39
6. MUFFLER… 40
7. HYDRAULIC OIL TANK… 41
8. AIR FILTER … 47
9. COUNTERWEIGHT… 47
10. FUEL SYSTEM …. 48
11. CAB AND OPERATOR’S SEAT … 55
12. CENTRALIZED LUBRICATION PUMP….. 66
SECTION 05 – UNDERCARRIAGE
1. UNDERCARRIAGE COMPONENTS…. 1
2. REAR RIGID AXLE… 2
2.1 TECHNICAL SPECIFICATIONS… 3
2.2 DISASSEMBLY AND ASSEMBLY… 6
2.3 DISASSEMBLY AND ASSEMBLY… 8
2.4 TROUBLESHOOTING… 87
2.5 SPECIAL TOOLS….. 89
3. TRAVEL MOTOR…. 90
3.1 TECHNICAL SPECIFICATIONS…. 90
3.2 DISASSEMBLY AND ASSEMBLY…. 91
3.3 DISASSEMBLY AND ASSEMBLY…. 92
4. CARDAN SHAFT ….. 103
4.1 DISASSEMBLY AND ASSEMBLY….. 104
5. FRONT STEERING AXLE …. 106
5.1 TECHNICAL SPECIFICATIONS….. 107
5.2 DISASSEMBLY AND ASSEMBLY….. 110
5.3 DISASSEMBLY AND ASSEMBLY….. 112
5.4 TROUBLESHOOTING…. 185
5.5 SPECIAL TOOLS… 187
6. WHEELS AND TYRES … 188
7. BLADE … 192
7.1 BLADE CYLINDER… 194
8. AXLE FLOATING LOCKING CYLINDERS … 202
8.1 TECHNICAL SPECIFICATIONS….. 203
8.2 DISASSEMBLY AND ASSEMBLY….. 204
8.3 AIR BLEEDING… 205
8.4 DISASSEMBLY AND ASSEMBLY….. 206
8.5 TROUBLESHOOTING…. 208
9. STABILIZERS …. 209
9.1 STABILIZER CYLINDERS….. 212
9.2 TROUBLESHOOTING…. 221
10. LEFT LADDER… 223
11. RIGHT LADDER AND TOOL STORAGE BOX… 224
12. ROTARY CONTROL VALVE AND ELECTRIC ROTOR…. 225
12.1 TECHNICAL SPECIFICATIONS….. 225
12.2 DISASSEMBLY AND ASSEMBLY….. 226
12.3 DISASSEMBLY AND ASSEMBLY….. 227
12.4 ELECTRIC ROTOR … 229
SECTION 06 – FRONT ATTACHMENT
1. TYPES OF FRONT ATTACHMENT….. 2
2. HYDRAULIC CYLINDERS…. 4
2.1 BOOM CYLINDER….. 5
2.2 SPECIAL TOOLS ….. 50
3. BUCKETS… 51
4. QUICK COUPLER ….. 55
5. CLAMSHELL BUCKET…. 59
SECTION 07 – STEERING SYSTEM
1. OPERATION…. 1
2. POWER STEERING…. 3
2.1 DISASSEMBLY AND ASSEMBLY ….. 5
3. PRIORITY VALVE ….. 23
4. TROUBLESHOOTING….. 24
SECTION 08 – BRAKE SYSTEM
1. OPERATION…. 1
2. SERVICE BRAKE….. 4
3. PARKING BRAKE …. 7
4. PEDAL BRAKE VALVE … 8
5. ACCUMULATORS…. 9
6. TROUBLESHOOTING….. 11
SECTION 09 – HYDRAULIC SYSTEM
1. HYDRAULIC SYSTEM …. 1
2. HYDRAULIC SYSTEM DIAGRAMS….. 5
2.1 HYDRAULIC SYSTEM DIAGRAMS – UPPER STRUCTURE … 5
2.2 HYDRAULIC SYSTEM DIAGRAMS – UNDERCARRIAGE ….. 31
2.3 HYDRAULIC SYSTEM DIAGRAMS BLADE AND/OR STABILIZERS … 35
3. HYDRAULIC PUMPS …. 39
4. UPPER STRUCTURE CONTROL VALVE ….. 56
5. UNDERCARRIAGE CONTROL VALVE … 66
6. PILOT CONTROL ASSY ….. 68
7. ROTATION SYSTEM …. 77
8. TRAVEL… 81
9. STABILIZATION HYDRAULIC SYSTEM….. 92
10. BOOM HYDRAULIC SYSTEM ….. 98
11. HYDRAULIC SYSTEM … 105
12. HYDRAULIC SYSTEM OF DIPPER…. 111
13. HYDRAULIC SYSTEM OF PLACING BOOM….. 115
14. HYDRAULIC SYSTEM WITH COMBINATION OF DIFFERENT FUNCTIONS
(BOOM, PLACING BOOM, DIPPER AND BUCKET) ….. 122
15. HYDRAULIC SYSTEM OF HAMMER (WITH PLACING BOOM) ….. 124
16. HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH PLACING BOOM)….. 127
17. HYDRAULIC SYSTEM OF SHEARS (WITH PLACING BOOM) … 132
18. HYDRAULIC SYSTEM OF HAMMER (WITH MONOBOOM)….. 135
19. HYDRAULIC SYSTEM OF HAMMER AND SHEARS (WITH MONOBOOM) …. 138
20. HYDRAULIC SYSTEM OF SHEARS (WITH MONOBOOM)… 143
21. TROUBLESHOOTING… 146
SECTION 10 – ELECTRICAL SYSTEM
1. ELECTRICAL DIAGRAMS…. 1
2. FUSES ….. 43
3. BATTERIES… 46
4. BULBS ….. 50
5. TROUBLESHOOTING….. 55
SECTION 11 – ELECTRONICS
1. MAIN COMPONENTS …. 1
1.1 ELECTRICAL POWER SUPPLY DIAGRAM….. 3
2. COMPONENTS OF LINE 1 … 5
3. COMPONENTS OF LINE 2 … 9
3.1 TRAVEL PEDAL …. 15
3.2 ATTACHMENT PEDAL (PLACING BOOM AND HAMMER)… 16
3.3 ELECTRO-HYDRAULIC SYSTEM … 17
3.4 POWER CONTROL SYSTEM…. 18
4. ENGINE SPEED ACTUATOR … 25
5. COOLANT TEMPERATURE DETECTION….. 26
6. CHARGE AIR TEMPERATURE DETECTION… 27
7. HYDRAULIC OIL TEMPERATURE DETECTION…. 28
8. PROPORTIONAL VALVE – FAN MOTOR… 29
9. PROPORTIONAL VALVES – CONTROL BLOCK…. 30
SECTION 12 – CALIBRATION
1. NECESSARY OPERATIONS BEFORE CALIBRATION….. 1
2. DISPLAY: CALIBRATION MENU … 3
3. CALIBRATIONS WITH THE ENGINE RUNNING… 4
3.1 VDO CALIBRATION … 6
3.2 POWER CALIBRATION … 8
3.3 MAIN VALVE CALIBRATION (CONTROL VALVE)….. 10
3.4 TRAVEL CALIBRATION…. 13
3.5 PUMP DELIVERY CALIBRATION…. 15
3.6 ROTATION PUMP CALIBRATION… 18
3.7 AUXILIARY PRESSURE CALIBRATION ….. 20
4. CALIBRATIONS WITH THE ENGINE STOPPED … 22
4.1 CALIBRATIONS, ALL SOLENOID VALVES, MAIN PUMP, ROTATION PUMP,
AUXILIARY PRESSURE … 24
4.2 MAIN VALVE CALIBRATION (CONTROL VALVE)….. 26
…
SECTION 05 – UNDERCARRIAGE
Disassembly
Before draining the oil, place the wheel hub with the plug (1) in the highest position and unscrew it of a few turns in order to relieve a possible internal pressure, then completely remove it. Rotate the hub until the hole reaches the lowest position.
Drain the oil completely.
Remove the screws (2) from the planet carrier cover.
By means of levers inserted in the provided slots, remove the planet carrier cover (3).
Remove the planet carrier cover (3) and the O-ring (6).
…

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9-91370_EN – EXCAVATOR WX95, WX125 SERVICE MANUAL.pdf
9-91360_FR – PELLE WX95, WX125 MANUEL DE SERVICE.pdf
9-91370 EN – WX95, WX125 Excavator Service Manual.pdf
9-91380_DE – BAGGER WX95, WX125 WERKSTATTHANDBUCH.pdf
9-93260_IT – ESCAVATORE WX95, WX125 MANUALE ISTRUZIONI PER LE RIPARAZIONI.pdf

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case WX95, WX125 Excavator. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case WX95, WX125 Excavator like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case WX95, WX125 Excavator is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
AXLES
OPERATIONAL PRINCIPLE
STEERING AXLES: FRONT AND REAR
The steering effect is obtained with an hydraulic cylinder acting on the two articulation boxes (right and left) directing them according to the flywheel rotation
sense.
The swinging effect is obtained by two supports complete of bushings, mounted on the central housing of the axle in turn secured to the lower frame of the machine.
The axles consist mainly of:
• Axle body
• Steering control cylinder
• Lateral reduction units
• Differential and pinion (in the axle body)
• Braking unit (in the axle body)
Those components are contained both in the front and back axle. Namely the only difference between both axles is that the rear axle carries:
• The outer negative hydraulic brake.
STEERING FRONT AXLE
…
BRAKING UNIT
The braking action is hydraulically actuated in both axles through wet discs.
The service brake circuit is actuated by the action exercised on the brake valve. The latter sends pressurised hydraulic oil (70 bar) to the piston of the front and rear axle. These pistons, after overcoming the reaction of the springs, keeping the drive plate in rest condition, ensure that the discs are pressed one against the other, thus providing the braking action.
The service brake circuit can be applied, while the machine is standing, by pressing a switch located on the steering column, that controls electrically, the brake valve; the braking action occurs, under these conditions, in a non modulated manner and allows an optimised stability during digging operations. The application of the work brake is signalled by an indicator located in correspondence with the actuating switch.
STEERING CASE AND LATERAL REDUCTION UNIT
The final drive is of a planetary type and its function is to reduce in an appropriate manner, the r.p.m. of the drive wheels with respect to the r.p.m. output of the
differential.
The reduction unit is composed of a toothed hub, three planetary gears and a solar gear splined on the end of the axle shaft.
The reduction unit is fitted in the cover on its turn fitted on the wheel hub.
This hub is located in the steering case, which thanks to the articulations (and to the steering cylinder movement) enables the wheels steering.
…
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