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2 of 951 Dealer Copy -- Not for Resale

Bobcat B730 Backhoe Loader Service Repair Manual (SN B45111001 and Above)

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Text of Bobcat B730 Backhoe Loader Service Repair Manual (SN B45111001 and Above)

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  • MAINTENANCE SAFETY

    MSW46-0116

    Never service the Bobcat BackhoeLoader without instructions.

    Have good ventilation whenwelding or grinding paintedparts.Wear dust mask when grindingpainted parts. Toxic dust and gascan be produced.

    Vent exhaust to outside whenengine must be run for service.Exhaust system must be tightlysealed. Exhaust Fumes can killwithout warning.

    Never work on backhoe loaderwith lift arms raised unlesssupported by an approved liftarm support device.Always lower the backhoe bucketto the ground before doing anymaintenance.

    Always use an approved lift armsupport device when servicing thebackhoe loader with the lift armsraised. Replace the lift arm supportdevice if damaged or missing.Disconnecting or loosening anyhydraulic tubeline, hose, fittingcomponent, or part failure cancause lift arms or backhoe boomto drop.

    Cleaning and maintenance arerequired daily.NEVER modify equipment or addattachments not approved byBobcat.

    Lead-acid batteries produceflammable and explosive gases.Keep arcs, sparks, flames andlighted tobacco away frombatteries.Batteries contain acid whichburns eyes or skin on contact.Wear protective clothing. If acidcontacts body, flush well withwater. For eye contact flush welland get immediate medicalattention.

    Stop, cool and clean engine offlammable materials beforechecking fluids.Never service or adjust machinewith the engine running unlessinstructed to do so in themanual.Avoid contact with leakinghydraulic fluid or diesel fuelunder pressure. It can penetratethe skin or eyes.Never fill fuel tank with enginerunning, while smoking or whennear open flame.

    CORRECT

    B-10731a B-16768

    CORRECT CORRECT

    B-16738

    WRONG

    B-16730

    WRONG

    B-16746

    WRONG

    B-16719

    B-16571

    WRONG WRONG

    B-16731 B-6589

    WRONG

    WARNINGInstructions are necessary before operating or servicing machine. Read andunderstand the Operation & Maintenance Manual, Operator’s Handbook andsigns (decals) on machine. Follow warnings and instructions in the manualswhen making repairs, adjustments or servicing. Check for correct function afteradjustments, repairs or service. Untrained operators and failure to followinstructions can cause injury or death.

    W-2003-0807

    Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by the owner/operator without any specific technical training. Maintenance procedures which are not in the Operation &Maintenance Manual must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL. Always usegenuine Bobcat replacement parts.

    Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.

    Keep body, jewelry and clothingaway from moving parts,electrical contact, hot parts andexhaust.Wear eye protection to guardfrom battery acid, compressedsprings, fluids under pressureand flying debris when enginesare running or tools are used.Use eye protection approved fortype of welding.Keep engine cover closed exceptfor service. Close and latchengine cover before operatingthe backhoe loader.

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  • 1-3 B730, B750 & B780 Service Manual

    CONTENTS

    GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-01

    LUBRICATION AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-01

    HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-01

    ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-01

    AXLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-01

    TRANSMISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60-01

    ENGINE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70-01

    ALPHABETICAL INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .INDEX-01

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  • 10-01 B730, B750 & B780 Service Manual

    GENERAL INFORMATION

    MACHINE INFOMRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1B730 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-1B750 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-3B780 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10-5

    TECHNICAL PROPERTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1B730 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-1Axle / Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-2Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-2Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-2Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-2Cab / Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-2Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-3Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-3Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-3B750 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-4Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-4Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-4Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-4Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-4Axle / Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Cab / Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-5Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-6Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-6B780 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-7Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-7Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-7Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-7Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-7Axle / Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Loader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Backhoe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Cab / Canopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-8Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-9Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20-9

    MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30-1

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  • 10-02 B730, B750 & B780 Service Manual

    POSITION OF MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1Loader Attachment Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1Backhoe Attachment Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40-1

    SAFETY INSTRUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-1General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-2Crushing And Burning Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-3Fire And Explosion Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-3Hydraulic Lines And Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-50-4

    STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1Preparing The Machine For Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-60-1Preparing The Machine For Work After A Long Period Of Storage . . . . . . . . . . . . . 10-60-1

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  • 10-10-1 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION

    B730 Specification

    These are backhoe loaders that are designed with operating weight up to 8.2 tons, rigid frame, bucket capacity of 0.2m³ and shovel capacity of 1.1 m³. This machine is designed to dig and load in closed and open terrain.

    WARNING: Because of exhaust gas, use the machine only in well ventilated areas.

    A Overall Machine Length In Travel Position 5950 mm (234.25 in) F Machine Height In Travel Position 3900 mm (153.54 in)

    B Wheelbase 2180 mm (85.83 in) G Machine Width 2280 mm (89.76 in)

    C Backhoe Swing Center Distance 1300 mm (51.18 in) H Overall Width With Bucket 2280 mm (89.76 in)

    D Minimum Machine Height 380 mm (14.96 in) J Rear Wheel Track 1770 mm (69.68 in)

    E Cab Height 2900 mm (114.17 in) K Front Wheel Track 1895 mm (74.61 in)

    S45423

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  • 10-10-2 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION (CONT’D)

    B730 Specification (Cont’d)

    S45424

    Retracted Extended

    A Maximum Dig Depth 4600 mm (181.10 in) 5800 mm (228.35 in) I Distance Between Hinge Pin And Front Axle Center

    1220mm (48.03 in)

    B Max Reach From Rear Axle Center 7000mm (275.59 in) 8100 mm (318.90 in) J Max Rollback Angle, Fully Raised 59.2°

    C Max Reach From Swing Center 5700 mm (224.41 in) 6800 mm (267.72 in) K Dump Height 2810 mm (110.63 in)

    D Maximum Digging Height 5600 mm (220.47 in) 6450 mm (253.94 in) L Loadover Height 3280 mm (129.13 in)

    E Maximum Dumping Height 3850 mm (151.57 in) 4700 mm (185.04 in) M Height To Hinge Pin 3520 mm (138.58 in)

    F Loading Reach 1800 mm (70.87 in) 2650 mm (104.33 in) N Max Reach At Full Height 1070 mm (42.13 in)

    G Bucket Rotation Angle 200.4° 200.4° O Dumping Reach 620 mm (24.41 in)

    H Max Bucket Hinge Pin Height 4750 mm (187.01 in) 5550 mm (218.50 in) P Digging Depth 115 mm (4.53 in)

    R Dump Angle 45°

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  • 10-10-3 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION (CONT’D)

    B750 Specification

    These are backhoe loaders that are designed with operating weight up to 8.2 tons, rigid frame, bucket capacity of 0.2m³ and shovel capacity of 1.1 m³. This machine is designed to dig and load in closed and open terrain.

    S45423

    A Overall Machine Length In Travel Position 6100 mm (240.16 in) F Machine Height In Travel Position 3900 mm (153.54 in)

    B Wheelbase 2180 mm (85.83 in) G Machine Width 2280 mm (89.76 in)

    C Backhoe Swing Center Distance 1300 mm (51.18 in) H Overall Width With Bucket 2280 mm (89.76 in)

    D Minimum Machine Height 400 mm (15.75 in) J Rear Wheel Track 1770 mm (69.68 in)

    E Cab Height 2900 mm (11.17 in) K Front Wheel Track 1820 mm (71.65 in)

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  • 10-10-4 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION (CONT’D)

    B750 Specification (Cont’d)

    S45424

    Retracted Extended

    A Maximum Dig Depth 4600 mm (181.10 in) 5800 mm (228.35 in) I Distance Between Hinge Pin And Front Axle Center

    1460mm (57.48 in)

    B Max Reach From Rear Axle Center 7000mm (275.59 in) 8100 mm (318.90 in) J Max Rollback Angle, Fully Raised

    59.2°

    C Max Reach From Swing Center 5700 mm (224.41 in) 6800 mm (267.72 in) K Dump Height 2950 mm (116.14 in)

    D Maximum Digging Height 5600 mm (220.47 in) 6450 mm (253.94 in) L Loadover Height 3370 mm (132.68 in)

    E Maximum Dumping Height 3850 mm (151.57 in) 4700 mm (185.04 in) M Height To Hinge Pin 3670 mm (144.49 in)

    F Loading Reach 1800 mm (70.87 in) 2650 mm (104.33 in) N Max Reach At Full Height 1125 mm (44.29 in)

    G Bucket Rotation Angle 200.4° 200.4° O Dumping Reach 685 mm (24.41 in)

    H Max Bucket Hinge Pin Height 4750 mm (187.01 in) 5550 mm (218.50 in) P Digging Depth 113 mm (4.45 in)

    R Dump Angle 45°

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  • 10-10-5 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION (CONT’D)

    B780 Specification

    These are backhoe loaders that are designed with operating weight up to 8.7 tons, rigid frame, bucket capacity of 0.2m³ and shovel capacity of 1.1 m³. This machine is designed to dig and load in closed and open terrain

    S45425

    A Overall Machine Length In Travel Position 6375 mm (250.98 in) F Machine Height In Travel Position 3880 mm (152.76 in)

    B Wheelbase 2223 mm (87.52 in) G Machine Width 2400 mm (94.49 in)

    C Backhoe Swing Center Distance 1355 mm (53.35 in) H Overall Width With Bucket 2400 mm (94.49 in)

    D Minimum Machine Height 385 mm (15.16 in) J Rear Wheel Track 1950 mm (76.77 in)

    E Cab Height 2930 mm (71.65 in) K Front Wheel Track 1950 mm (76.77 in)

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  • 10-10-6 B730, B750 & B780 Service Manual

    MACHINE INFOMRATION (CONT’D)

    B780 Specification (Cont’d)

    S45426

    Retracted Extended

    A Maximum Dig Depth 4600 mm (181.10 in) 5800 mm (228.35 in) I Distance Between Hinge Pin And Front Axle Center

    1550 mm (61.02 in)

    B Max Reach From Rear Axle Center 7000mm (275.59 in) 8100 mm (318.90 in) J Max Rollback Angle, Fully Raised

    59.2°

    C Max Reach From Swing Center 5700 mm (224.41 in) 6800 mm (267.72 in) K Dump Height 2865 mm (112.79 in)

    D Maximum Digging Height 5600 mm (220.47 in) 6450 mm (253.94 in) L Loadover Height 3450 mm (135.83 in)

    E Maximum Dumping Height 3850 mm (151.57 in) 4700 mm (185.04 in) M Height To Hinge Pin 3590 mm (141.34 in)

    F Loading Reach 1800 mm (70.87 in) 2650 mm (104.33 in) N Max Reach At Full Height 1620 mm (63.78 in)

    G Bucket Rotation Angle 200.4° 200.4° O Dumping Reach 595 mm (23.43 in)

    H Max Bucket Hinge Pin Height 4750 mm (187.01 in) 5550 mm (218.50 in) P Digging Depth 117 mm (4.61 in)

    R Dump Angle 45°

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  • 10-20-1 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES

    B730 Specifications

    Engine

    Electrical System

    Hydraulic System

    Transmission

    Make & Model PERKINS 1104C-44T

    Emission Type Tier II

    Engine Type 4 Stroke diesel, Turbocharged

    Engine Power 74.5 kW/ 100 hp

    Rated Speed 2200 rpm

    Displacement 4.4 L (268.5 ci)

    Bore And Stroke 105 x 127 mm (4.13 x 5.00 in)

    Number Of Cylinder 4

    Maximum Torque 408 N•m (300.92 ft-lb)

    Cooling Water cooled

    Battery 12 volt / 120 Ah

    Starter 3,2 kW (4.3 hp)

    Alternator 75A

    Type Open center

    Hydraulic Pump Tandem Gear

    Maximum Flow 90 + 64 Lpm (23.78 + 16.91 gpm)

    Maximum Pressure 22000 kPa (220 bar) (3191 psi)

    Hydraulic Oil Filter Full flow filter in return line with integrated fine filter area

    Hydraulic Oil Cooler Hydraulic and transmission oil cooler

    Hydraulic Controls

    Backhoe Control

    Loader ControlMechanical control lever

    Mechanical control lever

    Make ZF

    Drive 4 Wheel Drive

    Type Powershift

    2WD / 4WD Selection By switch on dash panel

    Transmission Disconnect Push button and brake system

    Travel Speeds

    1st

    2nd

    3rd

    4th

    Forward Reverse

    6,5 km/h (4.0 mph) 7,0 km/h (4.4 mph)

    11 km/h (6.8 mph) 12 km/h (7.5 mph)

    26 km/h (16.2 mph) 30 km/h (18.6 mph)

    40 km/h (24.9 mph)

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  • 10-20-2 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B730 Specifications (Cont’d)

    Axle / Brakes

    Tires

    Loader

    Backhoe

    Cab / Canopy

    Type (Front and Rear) ZF

    Front Axle Oscillation 20 degrees

    Steering angle 52 degrees

    Rear Axle Electro-hydraulic operated differential lock, outboard planetary design, self-adjusting high torque internal wet service brake

    Service Brake Type Hydraulic wet multi - disc

    Parking Brake Type Mechanical control on rear axle

    Front 2WD / 4WD - standard 12.5 - 18

    Rear - standard 16.9 - 28

    Bucket capacity 1.1 m³ (1.4 y³)

    Breakout force - lift 81,5 kN (118322 lbf)

    Breakout force shovel maximum 60,5 kN (13601 lbf)

    Bucket width 2280 mm (69.76 in)

    Lift height to hinge pin 3520 mm (138.58 in)

    ROC (ISO 14397-1) Bucket Application

    3413 kg (7524 lb)

    Maximum bucket break - out force 59,1 kN (13277 lbf)

    Bucket capacity 0.2 m³ (0.26 y³)

    Bucket width 600 mm (23.62 in)

    Arm tear - out

    Retracted

    Extended (With Optional extendable arm)31,8 kN (7140 lbf)

    22,4 kN (5033 lbf)

    Cab ROPS (ISO 3741) and FOPS (ISO 3449 Level II) type tinted safety glass giving total visibility, full opening rear-side windows, front and rear windshield wipers, fully adjustable front/rear and up/

    down seat, Fresh air heater/blower, full heat control

    Canopy ROPS (ISO 3741) and FOPS (ISO 3449 Level II), fully adjustable front/rear and up/down seat.

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  • 10-20-3 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B730 Specifications (Cont’d)

    Steering

    Capacities

    Weights

    Steering type 2 wheel hydraulic

    Power steering Hydrostatic

    Turning circle - outer front tire clearance 9500 mm (31.2 ft)

    Turning circle - outer bucket clearance 12,320 mm (40.4 ft)

    MAXIMUM CAPACITY SERVICE CAPACITY

    Engine oil (with filters) 8.4 l (8.9 qt) 8.0 l (8.5 qt)

    Cooling system 25,0 l (6.6 U.S. gal) 25,0 l (6.6 U.S. gal)

    Fuel tank 140,0 l (37 U.S. gal) 140,0 l (37 U.S. gal)

    Hydraulic tank 75,0 l (19.8 U.S. gal) 90,0 l (23.8 U.S. gal)

    Hydraulic system 130,0 l (34.3 U.S. gal) 130,0 l (34.3 U.S. gal)

    Transmission 19,0 l (5.0 U.S. gal) 14,0 - 16 l (3.7 - 4.2 U.S. gal)

    Axle oil

    Front

    Rear8,0 l (8.5 qt) 5,5 l (5.8 qt)

    16,0 l (4.2 U.S. gal) 9,0 l (2.4 U.S. gal)

    Brake oil 0,4 l (0.42 qt) 0,4 l (0.42 qt)

    Operating Weight 7800 kg (17196 lb)

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  • 10-20-4 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B750 Specifications

    Engine

    Electrical System

    Hydraulic System

    Transmission

    Make & Model PERKINS 1104C-44T

    Emission Type Tier II

    Engine Type 4 Stroke diesel, Turbocharged

    Engine Power 74.5 kW/ 100 hp

    Rated Speed 2200 rpm

    Displacement 4.4 L (268.5 ci)

    Bore And Stroke 105 x 127 mm (4.13 x 5.00 in)

    Number Of Cylinder 4

    Maximum Torque 408 N•m (300.92 ft-lb)

    Cooling Water cooled

    Battery 12 volt / 120 Ah

    Starter 3,2 kW (4.3 hp)

    Alternator 75A

    Type Open Center

    Hydraulic Pump Tandem Gear

    Maximum Flow 90 + 64 Lpm (23.78 + 16.91 gpm)

    Maximum Pressure 22000 kPa (220 bar) (3191 psi)

    Hydraulic Oil Filter Full flow filter in return line with integrated fine filter area

    Hydraulic Oil Cooler Hydraulic and transmission oil cooler

    Hydraulic Controls

    Backhoe Control

    Loader ControlPilot controls

    Pilot controls

    Make ZF

    Drive 4 Wheel Drive

    2WD / 4WD Selection By switch on dash panel

    Type Powershift

    Transmission disconnect Push button and brake system

    Travel Speeds

    1st

    2nd

    3rd

    4th

    Forward Reverse

    6,5 km/h (4.0 mph) 7,0 km/h (4.4 mph)

    11 km/h (6.8 mph) 12 km/h (7.5 mph)

    26 km/h (16.2 mph) 30 km/h (18.6 mph)

    40 km/h (24.9 mph)

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  • 10-20-5 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B750 Specifications (Cont’d)

    Axle / Brakes

    Tires

    Loader

    Backhoe

    Cab / Canopy

    Steering

    Type ZF

    Front Oscillation 20 degrees

    Steering angle 52 degrees

    Rear Axle Electro-hydraulic operated differential lock, outboard planetary design, self-adjusting high torque internal wet service brake

    Service Brake Type Hydraulic wet multi - disc

    Parking Brake Type Mechanical control on rear axle

    Front 4WD - standard 14.5 - 20

    Rear 4WD - standard 16,9 - 28

    Shovel capacity 1,1 m³ (1.4 y³)

    Breakout force - lift 56,1 kN (12612 lbf)

    Breakout force shovel maximum 81,6 kN (18344 lbf)

    Bucket width 2280 mm (89.76 in)

    Lift height to hinge pin 3670 mm (144.49 in)

    ROC (ISO 14397-1) Bucket Application 2905.5 kg (6505 lb)

    Maximum bucket breakout 59,1 kN (13277 lbf)

    Arm breakout force

    Retracted

    Extended (with optional extendable arm)31,8 kN (7140 lbf)

    22,4 kN (5036 lbf)

    Bucket capacity 0,2 m³ (0.26 y³)

    Bucket width 600 mm (23.62 in)

    Cab ROPS (ISO 3741) and FOPS (ISO 3449 Level II) type tinted safety glass giving total visibility, full opening rear-side windows, front and rear windshield wipers, fully adjustable front/rear and up/

    down seat, Fresh air heater/blower, full heat control

    Canopy ROPS (ISO 3741) and FOPS (ISO 3449 Level II), fully adjustable front/rear and up/down seat.

    Steering type 2 wheel steer hydrostatic

    Power steering Hydrostatic

    Turning circle - outer front tire clearance 12,170 mm (39.9 ft)

    Turning circle - outer bucket clearance 14,600 mm (47.9 ft)

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  • 10-20-6 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B750 Specifications (Cont’d)

    Capacities

    Weights

    MAXIMUM CAPACITY SERVICE CAPACITY

    Engine oil (with filters) 8.4 l (8.9 qt) 8.0 l (8.5 qt)

    Cooling system 25,0 l (6.6 U.S. gal) 25,0 l (6.6 U.S. gal)

    Fuel tank 140,0 l (37 U.S. gal) 140,0 l (37 U.S. gal)

    Hydraulic tank 75,0 l (19.8 U.S. gal) 90,0 l (23.8 U.S. gal)

    Hydraulic system 130,0 l (34.3 U.S. gal) 130,0 l (34.3 U.S. gal)

    Transmission 19,0 l (5.0 U.S. gal) 14,0 - 16 l (3.7 - 4.2 U.S. gal)

    Axle oil

    Front

    Rear8,0 l (8.5 qt) 5,5 l (5.8 qt)

    16,0 l (4.2 U.S. gal) 9,0 l (2.4 U.S. gal)

    Brake oil 0,4 l (0.42 qt) 0,4 l (0.42 qt)

    Operating Weight 8000 kg (17637 lb)

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  • Thank you very much for your reading. Please Click Here. Then Get COMPLETE MANUAL. NO WAITING

    NOTE: If there is no response to click on the link above, please download the PDF document first and then click on it.

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  • 10-20-7 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B780 Specifications

    Engine

    Electrical System

    Hydraulic System

    Transmission

    Make & Model PERKINS 1104C-44T

    Emission Type Tier II

    Engine Type 4 Stroke diesel, Turbocharged

    Engine Power 74.5 kW/ 100 hp

    Rated Speed 2200 rpm

    Displacement 4.4 L (268.5 ci)

    Bore And Stroke 105 x 127 mm (4.13 x 5.00 in)

    Number Of Cylinder 4

    Maximum Torque 408 N•m (300.92 ft-lb)

    Cooling Water cooled

    Battery 12 volt / 120 Ah

    Starter 3,2 kW (4.3 hp)

    Alternator 75A

    Type Open Center

    Hydraulic Pump Tandem Gear

    Maximum Flow 90 + 64 Lpm (23.78 + 16.91 gpm)

    Maximum Pressure 22000 kPa (220 bar) (3191 psi)

    Hydraulic Oil Filter Full flow filter in return line with integrated fine filter area

    Hydraulic Oil Cooler Hydraulic and transmission oil cooler

    Hydraulic Controls

    Backhoe Control

    Loader ControlPilot controls

    Pilot controls

    Make Carraro

    Drive All Wheel Drive (AWD)

    2WD / 4WD Selection By switch on dash panel

    Type Auto Powershift

    Transmission disconnect Push button and brake system

    Travel Speeds

    1st

    2nd

    3rd

    4th

    Forward Reverse

    5,8 km/h (3.6 mph) 5,8 km/h (3.6 mph)

    9,6 km/h (6.0 mph) 9,6 km/h (6.0 mph)

    21,2 km/h (13.17 mph) 21, 2 km/h (13.17 mph)

    40 km/h (24.9 mph) 40 km/h (24.9 mph)

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  • 10-20-8 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B780 Specifications (Cont’d)

    Axle / Brakes

    Tires

    Loader

    Backhoe

    Cab / Canopy

    Steering

    Type Carraro

    Front Oscillation 16 degrees

    Steering angle 52 degrees

    Rear Axle Electro-hydraulic operated differential, outboard planetary design,self-adjusting high torque internal wet service brake

    Service Brake Type Hydraulic wet multi - disc

    Parking Brake Type Mechanical control on rear axle

    Front 4WD-standard 16.9 - 28

    Rear 4WD-standard 16.9 - 28

    Bucket capacity 1,1 m³ (1.4 y³)

    Breakout force - lift 56,1 kN (12612 lbf)

    Breakout force bucket maximum 81,6 kN (18344 lbf)

    Bucket width 2400 mm (89.76 in)

    Lift height to hinge pin 3590 mm (141.34 in)

    ROC (ISO 14397-1) Bucket Application

    3122 kg (6883 lb)

    Maximum bucket breakout 59,1 kN (13277 lbf)

    Arm break out

    Retracted

    Extended (with optional extendable arm)31,8 kN (7140 lbf)

    22,4 kN (5036 lbf)

    Bucket capacity 0,2 m³ (0.26 y³)

    Bucket width 600 mm (23.62 in)

    Cab ROPS (ISO 3741) and FOPS (ISO 3449 Level II) type tinted safety glass giving total visibility, full opening rear-side windows, front and rear windshield wipers, fully adjustable front/rear and up/

    down seat, Fresh air heater/blower, full heat control

    Canopy ROPS (ISO 3741) and FOPS (ISO 3449 Level II), fully adjustable front/rear and up/down seat.

    Steering type 4 wheel steer hydrostatic (2WS, 4WS, Crab)

    Power steering Hydrostatic

    Turning circle - outer front tire clearance 11,700 mm (38.4 ft)

    Turning circle - outer bucket clearance 11,240 mm (36.9 ft)

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  • 10-20-9 B730, B750 & B780 Service Manual

    TECHNICAL PROPERTIES (CONT’D)

    B780 Specifications (Cont’d)

    Capacities

    Weights

    MAXIMUM CAPACITY SERVICE CAPACITY

    Engine oil (with filters) 8.4 l (8.9 qt) 8.0 l (8.5 qt)

    Cooling system 25,0 l (6.6 U.S. gal) 25,0 l (6.6 U.S. gal)

    Fuel tank 140,0 l (37 U.S. gal) 140,0 l (37 U.S. gal)

    Hydraulic tank 75,0 l (19.8 U.S. gal) 90,0 l (23.8 U.S. gal)

    Hydraulic system 130,0 l (34.3 U.S. gal) 130,0 l (34.3 U.S. gal)

    Transmission 19,0 l (5.0 U.S. gal) 18,0 l (4.8 U.S. gal)

    Axle oil

    Front

    Rear11,5 l (3.0 U.S. gal) 7,0 l (7.4 qt)

    16,0 l (4.2 U.S. gal) 9,0 - 10 l (2.4 - 2.6 U.S. gal)

    Brake oil 0,4 l (0.42 qt) 0,4 l (0.42 qt)

    Operating Weight 8700 kg (19180 lb)

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  • 10-30-1 B730, B750 & B780 Service Manual

    MAIN COMPONENTS

    [A] - Roll Over Protective Structure (ROPS) per ISO 3471 and Falling Over Protective Structure (FOPS) per ISO 3449,Level II.

    [B] - Several different buckets and other attachments are available for the Bobcat backhoe loader.

    1 OPERATOR’S CAB (WITH ROPS / FOPS) [A] 11 BACKHOE ARM

    2 LOADER BUCKET 12 BACKHOE BOOM

    3 LIFT ARM 13 BACKHOE ATTACHMENT SIDESHIFT CARRIAGE

    4 FRONT AXLE 14 STABILIZERS

    5 REAR AXLE 15 HYDRAULIC OIL TANK

    6 FUEL TANK 16 BATTERY BOX

    7 BACKHOE BUCKET [B] 17 ENGINE BONNET

    8 WORK LIGHTS 18 APPROVED LIFT ARM SUPPORT DEVICE

    9 MIRRORS 19 BOOM LOCKOUT

    10 TIRES 20 BUCKET LINK

    1

    2

    3

    4

    5

    1516

    18

    17

    8 9

    9

    8

    NA9989

    NA99906

    7

    11

    12

    1410

    20

    1310 14

    198

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    MAINTENANCE SAFETYCONTENTSGENERAL INFORMATIONMACHINE INFOMRATIONB730 SpecificationB750 SpecificationB780 Specification

    TECHNICAL PROPERTIESB730 SpecificationsEngineElectrical SystemHydraulic SystemTransmissionAxle / BrakesTiresLoaderBackhoeCab / CanopySteeringCapacitiesWeightsB750 SpecificationsEngineElectrical SystemHydraulic SystemTransmissionAxle / BrakesTiresLoaderBackhoeCab / CanopySteeringCapacitiesWeightsB780 SpecificationsEngineElectrical SystemHydraulic SystemTransmissionAxle / BrakesTiresLoaderBackhoeCab / CanopySteeringCapacitiesWeights

    POSITION OF MACHINELoader Attachment PositionBackhoe Attachment Position

    SAFETY INSTRUCTIONGeneral Safety InformationCrushing And Burning PreventionFire And Explosion PreventionHydraulic Lines And Hoses

    STORAGEPreparing The Machine For StoragePreparing The Machine For Work After A Long Period Of Storage

    LUBRICATION AND MAINTENANCELIFTING AND BLOCKING THE BACKHOE LOADERProcedure

    APPROVED LIFT ARM SUPPORT DEVICEDescription

    TOWING THE BACKHOE LOADERProcedure

    AXLE TOE-IN ADJUSTMENTProcedure

    LUBRICATIONGeneral Safety InformationLubricant And Operating Materials SpecificationsDiesel FuelEngine CoolantHydraulic FluidBrake OilTransmission FluidFront Axle OilRear Axle OilLubrication Chart (B730 & B750)Lubrication Chart (B780)Diesel EngineChecking The Engine Oil LevelDraining The Engine OilReplace The Oil Filter ElementAdding Engine OilCooling SystemChecking The Coolant LevelChanging The CoolantDraining CoolantClean The Radiator And Adding CoolantClean The Oil Cooler And The RadiatorHydraulic SystemCheck Hydraulic Oil LevelTo Drain OilTo Replace The Return FilterReplacing The Internal Hydraulic FilterTo Clean The Suction StrainerAdding Hydraulic OilThe Fuel SystemFuel SpecificationsBiodiesel Blend FuelDrain The Contaminant From The Fuel FilterDrain The Contaminant From The Fuel TankClean Fuel Tank BreatherReplace The Fuel Filter ElementsAdding FuelTransmission SystemChecking Transmission Oil LevelDraining Transmission OilReplace The Transmission Filter ElementsAdd Transmission OilFront Drive Axle And Reduction GearsTo Drain OilTo Add OilReduction GearsTo Check Reduction Gear Oil LevelTo Drain Reduction Gear OilAdding Reduction Gear OilRear AxleChecking Rear Axle Oil LevelCleaning The Rear Axle BreatherDraining Rear Axle OilAdding Rear Axle OilBrake FluidChecking Brake Fluid Reservoir LevelAdding Brake FluidBleeding The Brake SystemService Schedule

    AIR CLEANER SERVICEEngine Air Intake SystemCleaning The Primary ElementReplacing The Air Filter ElementsCab Air Intake Filter

    BACKHOE BOOM / SWING LOCKEngaging And Disengaging

    ENGINE ALTERNATOR / FAN BELT AND AIR CONDITIONER BELT (IF EQUIPPED)Replacing Fan And Alternator Belt

    TIRE MAINTENANCEType Of TiresTo Replace A WheelWheel Nut Torque Settings

    LUBRICATING THE BACKHOE LOADERLubrication Locations

    HYDRAULIC SYSTEMHYDRAULIC / HYDROSTATIC SCHEMATICSHYDRAULIC SYSTEM INFORMATIONGlossary Of Hydraulic / Hydrostatic Symbols

    HYDRAULIC SYSTEMTests and Hydraulic Pressure Test (B730)Tests and Hydraulic Pressure Test (B750)Tests and Hydraulic Pressure Test (B780)Test PortsHydraulic Tank And Return FilterFixed Displacement Tandem PumpBlocksON-OFF Solenoid ValveON-OFF Pressure Reducing ValveLoader Control ValveUnloading Valve TestSteering Priority ValveBackhoe Control ValveSteering Pressure TestPilot Pressure Test (B750) And (B780)

    HYDRAULIC CYLINDERSBasic Type Cylinder AssemblyNut Type Cylinder MontageLoader Lift CylinderLoader Bucket (Tilt) CylinderClampshell CylinderBackhoe Boom CylinderBackhoe Arm CylinderBackhoe Bucket CylinderBackhoe Extendible Arm CylinderBackhoe Swing CylinderBackhoe Stabilizer Cylinder

    ELECTRICAL SYSTEMELECTRICAL SCHEMATICSELECTRICAL SYSTEM - B730FusesRelays

    ELECTRICAL SYSTEM - B750FusesRelays

    ELECTRICAL SYSTEM - B780FusesRelays

    ELECTRICAL SYSTEMComponent LocationComponent Location - ZF In B730 & B750Component Location - Carraro In B780

    AXLESSAFTEY INSTRUCTIONSGeneral Safety Recommendations

    FRONT AXLE - B730 AND B750DescriptionDisassemblyReassembly

    FRONT AXLE - B780DescriptionTightening TorqueSteering Cylinder Group DisassemblySteering Cylinder Group AssemblyEpicyclic Reduction Gear Group DisassemblyEpicyclic Reduction Gear Group AssemblyWheel Hub Group DisassemblyWheel Hub Group AssemblyAxle Beam Group DisassemblyAxle Beam Group AssemblyFlange Group DisassemblyFlange Group AssemblyDifferential Support Group DisassemblyDifferential Support Group AssemblyDifferential Group DisassemblyDifferential Group AssemblyPinion Group DisassemblyPinion Group AssemblyToe-in / Steering AngleSteering Angle AdjustmentTesting After Assembly

    SAFETY INSTRUCTIONSGeneral Safety Recommendations

    REAR AXLE - B730 AND B750PrefaceLubrication And Maintenance InstructionsService Brake - Brake Wear Measurement On The ZF- Axle MT-B 3070Instructions For The Displacement Resp. Emergency Towing Of The VehicleTechnical DataDisassembly - Output UnitService Brake (Multi Disc Brake)DifferentialDisassembly - InputDisassembly - Parking Brake “Multi-Disc Brake”Disassembly - Parking Brake “Disc Brake”Reassembly - InputReassembly - DifferentialAssembly Service Brake (Multi-Disc Brake)Reassembly - Output UnitParking Brake Version “Multi-Disc Brake”Reassembly of Parking Brake version “Disc Brake”Completion Of Axle

    REAR AXLE - B780DescriptionTightening TorqueSteering Cylinder Group DisassemblySteering Cylinder Group AssemblyEpicyclic Reduction Gear Group DisassemblyEpicyclic Reduction Gear Group AssemblyWheel Hub Group DisassemblyWheel Hub Group AssemblyParking Brake Group DisassemblyParking Brake Group AssemblyParking Brake CaliperAxle Beam Trumpet Group DisassemblyAxle Beam Trumpet Group AssemblyBrake GroupBrake Group DisassemblyBrake Group AssemblyDifferential Support Group DisassemblyDifferential Support Group AssemblyDifferential Group DisassemblyDifferential Group AssemblyDifferential LockDifferential Locking Group DisassemblyDifferential Locking Group AssemblyPinion Group DisassemblyPinion Group AssemblyToe-In/Steering AngleSteering Angle AdjustmentTesting After Assembly

    SERVICE BRAKEDescriptionBleeding The Brake Circuitry

    TRANSMISSIONMANUAL USEMaintenanceRepairAgreements And DefinitionsTypographic AgreementsMeasurementsGeneral DescriptionRecommendations For Repair OperationsTransmission Installation On The Machine

    SAFETY INSTRUCTIONSGeneral Safety Recommendations

    TRANSMISSION - B730 AND B750Serial Number Plate LocationPrefaceGeneralSchematicsMeasuring Points For Pressure Oil And TemperatureSolenoid / Gear ActivationHydraulic SchematicDisassemblyReassembly

    TRANSMISSION - B780Component LocationTightening TorqueHydraulic SchematicMain Hydraulic ComponentsKinematic SchemePlugs And Filters DisassemblyPlugs And Filters AssemblyTorque Converter And Oil Pump DisassemblyTorque Converter And Oil Pump AssemblyHydraulic Control Valve DisassemblyHydraulic Control Valve AssemblyHydraulic System Pipes DisassemblyHydraulic System Pipes AssemblyTransmission Housing DisassemblyTransmission Housing AssemblyShafts A - D DisassemblyShafts A - D AssemblyAxis B DisassemblyAxis B AssemblyAxis C DisassemblyAxis C AssemblyAxis E DisassemblyAxis E Assembly

    ENGINE SERVICEGENERAL INFORMATIONIntroductionEngine ViewsEngine IdentificationSafety PrecautionsEngine Lift EquipmentViton SealsPOWERPART Recommended Consumable Products

    SPECIFICATIONSBasic Engine DataData And DimensionsThread SealantStandard Torque ValuesSpecific Torque ValuesCompression Test Data

    CYLINDER HEADGeneral DescriptionAtomiser CoverRocker CoverRocker ArmValve Tip ClearancesValve SpringsRemovalInstallationValve And Valve SpringsValve GuidesInspection And To Correct

    PISTON AND CONNECTING ROD ASSEMBLIESGeneral DescriptionBig End BearingPiston And Connecting RodPiston RingsPiston And Connecting Rod AssemblyPiston And Piston RingsConnecting RodPartially Finished Small End BushPiston Cooling Jets

    CRANKSHAFT ASSEMBLYGeneral DescriptionCrankshaft PulleyRear End Oil Seal AssemblyTo Remove And To Fit A Wear SleeveThrust WashersMain BearingsCrankshaftBalancer Unit

    TIMING CASE AND DRIVE ASSEMBLYGeneral DescriptionTiming CoverMechanical Fuel Pump GearElectronic Fuel Pump GearIdler Gear and HubHeavy Duty Idler GearCamshaft GearFront Oil SealTiming CaseCrankshaft GearCamshaft and Tappets

    CYLINDER BLOCK ASSEMBLYGeneral DescriptionCylinder BlockCylinder Bore

    ENGINE TIMINGGeneral DescriptionTo Set Number 1 Piston To TDC On The Compression StrokeTo Check The Timing Of The Bosch VP30 Fuel Injection PumpTo Check The Timing Of The Bosch EPVE Fuel Injection PumpTo Adjust The Timing Of The Bosch EPVE Fuel Injection PumpTo Check The Timing Of The Delphi DP210 Fuel Injection PumpTo Check The Valve Timing

    ASPERATION SYSTEMGeneral DescriptionExhaust ElbowTurbocharger Side MountTurbocharger FaultsOpen Engine BreatherNatural Aspirated Engine BreatherClosed Engine Breather

    LUBRICATION SYSTEMGeneral DescriptionLubrication System Flow DiagramCanister Type Oil FilterElement Type Oil FilterFilter HeadSumpDipstick TubeOil Strainer And Suction PipeLubricating Oil Pump AssemblyRelief Valve

    FUEL SYSTEMGeneral DescriptionCold Start Advance Unit (KSB)Typical Fuel SystemFuel Filter AssemblyAtomizersFuel Lift Pump And Filter AssemblyRemoving Air From The Fuel SystemBosch VP30 Fuel Injection PumpBosch EVPE Fuel Injection PumpDelphi DP210 Fuel Injection Pump

    COOLING SYSTEMGeneral DescriptionCoolant Flow DiagramThermostatCoolant PumpFanFan DriveLubricating Oil CoolerCoolant By-Pass Pipe

    FLYWHEEL AND HOUSINGGeneral DescriptionFlywheelRing GearFlywheel Housing

    ELECTRICAL SYSTEMGeneral DescriptionAlternatorStarting Aid (Glow Plug)Electrical ComponentsEngine Control Module (ECM)Voltage Load Protection ModuleProgramming A New ECMSpeed And Timing SensorPressure SensorTemperature SensorWiring Harness

    AUXILIARY EQUIPMENTPower Steering PumpAdaptor For A Hydraulic Pump Or A Steering PumpExhauster

    SPECIAL TOOLSList Of Special Tools

    ALPHABETICAL INDEX