Bobcat B730/Bobcat B750 Backhoe Loader Service Manual (Version February 2019)

Bobcat B730/Bobcat B750 Backhoe Loader Service Manual
(B730) S/N B4B611001 & Above
(B750) S/N B4BM11001 & Above

Type of machine: Backhoe Loader
Print No: 7310058enUS (02-19)(A), February 2019
Language and Format: English/PDF
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The Service Manual will give you complete information on repair, servicing and preventative maintenance, for your Bobcat B730/Bobcat B750 Backhoe Loader.

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Table of contents:
1. GENERAL INFORMATION
MACHINE INFORMATION
B730 Specification
B750 Specification
TECHNICAL PROPERTIES
B730 Specifications
Engine
Electrical System
Hydraulic System
Transmission
Axle / Brakes
Tires
Loader
Backhoe
Cab / Canopy
Steering
Capacities
Weights
B750 Specifications
Engine
Electrical System
Hydraulic System
Transmission
Axle / Brakes
Tires
Loader
Backhoe
Cab / Canopy
Steering
Capacities
Weights
MAIN COMPONENTS
POSITION OF MACHINE
Loader Attachment Position
Backhoe Attachment Position
SAFETY INSTRUCTION
General Safety Information
Crushing And Burning Prevention
Fire And Explosion Prevention
Hydraulic Lines And Hoses
STORAGE
Preparing The Machine For Storage
Preparing The Machine For Work After A Long Period Of Storage

2. LUBRICATION AND MAINTENANCE
LIFTING AND BLOCKING THE BACKHOE LOADER
Procedure
APPROVED LIFT ARM SUPPORT DEVICE
Description
TOWING THE BACKHOE LOADER
Procedure
AXLE TOE-IN ADJUSTMENT
Procedure
LUBRICATION
General Safety Information
Lubricant And Operating Materials Specifications
Diesel Fuel:
Engine Coolant
Hydraulic / Hydrostatic Fluid Chart
Brake Oil (For B730 S/N B4B611001 – B4B611134)
Transmission Fluid
Front Axle Oil
Rear Axle Oil
Lubrication Chart (B730 And B750)
Diesel Engine
Checking The Engine Oil Level
Draining The Engine Oil
Replace The Oil Filter Element
Adding Engine Oil
Cooling System
Checking The Coolant Level
Coolant Reservoir
Changing The Coolant
Draining Coolant
Cleaning The Radiator And Adding Coolant
Hydraulic System
Check Hydraulic Oil Level
To Drain Oil
Replacing The Internal Hydraulic Filter
To Clean The Suction Strainer
Adding Hydraulic Oil
The Fuel System
Fuel Specifications
Biodiesel Blend Fuel
Drain The Contaminant From The Fuel Filter
Drain The Contaminant From The Fuel Tank
Clean Fuel Tank Breather
Replace The Fuel Filter Elements
Adding Fuel
Transmission
Checking Transmission Oil Level
Drain Transmission Oil
Add Transmission Oil
Front Drive Axle And Reduction Gears
To Drain Oil
To Add Oil
Reduction Gears
To Check Reduction Gear Oil Level
To Drain Reduction Gear Oil
Add Reduction Gear Oil
Rear Axle
To Check Rear Axle Oil Level
Clean The Rear Axle Breather
Drain Rear Axle Oil
Add Rear Axle Oil
Brake Fluid
Checking Brake Fluid Reservoir Level
Add Brake Oil
Draining The Brake System
Bleeding The Brake System
Service Schedule
AIR CLEANER SERVICE
Engine Air Intake System
Cleaning The Primary Element
Replacing The Air Filter Elements
Cab Air Intake Filter
BACKHOE BOOM / SWING LOCK
Engaging And Disengaging
ENGINE ALTERNATOR / FAN BELT AND AIR CONDITIONER BELT (IF EQUIPPED)
Checking The Fan Belt
Replacing Fan And Alternator Belt
TIRE MAINTENANCE
Maintenance Instruction
Type Of Tires
To Replace A Wheel
Wheel Nut Torque Settings
LUBRICATION OF THE BACKHOE LOADER
Lubrication Locations

3. HYDRAULIC SYSTEM
HYDRAULIC SYSTEM INFORMATION
Glossary Of Hydraulic / Hydrostatic Symbols
HYDRAULIC SYSTEM
Tests and Hydraulic Pressure Test (B730)
Tests and Hydraulic Pressure Test (B750)
Test Ports
Hydraulic Tank And Return Filter
Fixed Displacement Tandem Pump
Blocks
ON-OFF Solenoid Valve
ON-OFF Pressure Reducing Valve
Loader Control Valve
Unloading Valve Test
Steering Priority Valve
Backhoe Control Valve
Steering Pressure Test
Pilot Pressure Test (B750)
Priority Valve
RETURN LINE CHECK VALVE
Removal And Installation
HYDRAULIC CYLINDERS
Basic Type Cylinder Assembly
Nut Type Cylinder Montage
Loader Lift Cylinder
Loader Bucket (Tilt) Cylinder
Clampshell Cylinder
Backhoe Boom Cylinder
Backhoe Arm Cylinder
Backhoe Bucket Cylinder
Backhoe Extendible Arm Cylinder
Backhoe Swing Cylinder
Backhoe Stabilizer Cylinder
HYDRAULIC PUMP
Removal And Installation
BACKHOE CONTROL VALVE (B750)
Removal And Installation
BACKHOE CONTROL VALVE (B730)
Removal And Installation
BOOM CYLINDER
Removal And Installation
BUCKET CYLINDER
Removal And Installation
CLAMP CYLINDERS
Removal And Installation
CLAMSHELL CYLINDER
Removal And Installation
LIFT CYLINDERS
Removal And Installation
STABILIZER CYLINDERS
Removal And Installation
STICK CYLINDER
Removal And Installation
SWING CYLINDERS
Removal And Installation
TILT CYLINDERS (B750)
Removal And Installation
TILT CYLINDERS (B730)
Removal And Installation
BRAKE PEDAL AND BOOSTER
Removal And Installation (B730 S/N B4511155 & Above)
(B750 S/N B45211080 & Above)
HYDRAULIC RESERVOIR
Removal And Installation
LOADER CONTROL VALVE (B750)
Removal And Installation
LOADER CONTROL VALVE (B730)
Removal And Installation
STEERING COLUMN AND UNIT
Removal And Installation

4. ELECTRICAL SYSTEM
ELECTRICAL SYSTEM – B730
Fuses
Relays
ELECTRICAL SYSTEM – B750
Fuses
Relays
ELECTRICAL SYSTEM
Component Location
Component Location – ZF In B730 And B750
BATTERY
Removal And Installation
FUSE
Fuse Location
RELAY
Relay Location
INSTRUMENT CLUSTERS
Removal And Installation

5. AXLES
SAFTEY INSTRUCTIONS
General Safety Recommendations
FRONT AXLE – B730 AND B750
Description
Disassembly
Reassembly
FRONT SHAFT
Removal And Installation
REAR SHAFT
Removal And Installation
SAFETY INSTRUCTIONS
General Safety Recommendations
REAR AXLE – B730 AND B750
Preface
Lubrication And Maintenance Instructions
Service Brake – Brake Wear Measurement On The ZF-Axle MT-B 3070
Instructions For The Displacement Resp. Emergency Towing Of The Vehicle
Technical Data
Disassembly – Output Unit
Service Brake (Multi-Disc Brake)
Differential
Disassembly – Input
Disassembly – Parking Brake “Multi-Disc Brake”
Disassembly – Parking Brake “Disc Brake”
Reassembly – Input
Reassembly – Differential
Assembly Service Brake (Multi-Disc Brake)
Reassembly – Output Unit
Parking Brake Version “Multi-Disc Brake”
Reassembly Of Parking Brake Version “Disc Brake”
Completion Of Axle
SERVICE BRAKE
Description
Bleeding The Brake Circuitry
Test Procedure
Brake System Troubleshooting

6. TRANSMISSION
MANUAL USE
Maintenance
Repair
Agreements And Definitions
Typographic Agreements
Measurements
General Description
Recommendations For Repair Operations
Transmission Installation On The Machine
SAFETY INSTRUCTIONS
General Safety Recommendations
TRANSMISSION – B730 AND B750
Serial Number Plate Location
Preface
General
Schematics
Measuring Points For Pressure Oil And Temperature
Solenoid / Gear Activation
Hydraulic Schematic
Disassembly
Reassembly

7. ENGINE SERVICE
GENERAL INFORMATION
Introduction
Engine Views
Engine Identification
Safety Precautions
Engine Lift Equipment
Viton Seals
POWERPART Recommended Consumable Products
SPECIFICATIONS
Basic Engine Data
Data And Dimensions
Thread Sealant
Standard Torque Values
Specific Torque Values
Compression Test Data
CYLINDER HEAD
General Description
Atomiser Cover
Rocker Cover
Rocker Arm
Valve Tip Clearances
Valve Springs
Removal
Installation
Valve And Valve Springs
Valve Guides
Inspection And To Correct
PISTON AND CONNECTING ROD ASSEMBLIES
General Description
Big End Bearing
Piston And Connecting Rod
Piston Rings
Piston And Connecting Rod Assembly
Piston And Piston Rings
Connecting Rod
Partially Finished Small End Bush
Piston Cooling Jets
CRANKSHAFT ASSEMBLY
General Description
Crankshaft Pulley
Rear End Oil Seal Assembly
To Remove And To Fit A Wear Sleeve
Thrust Washers
Main Bearings
Crankshaft
Balancer Unit
TIMING CASE AND DRIVE ASSEMBLY
General Description
Timing Cover
Mechanical Fuel Pump Gear
Electronic Fuel Pump Gear
Idler Gear and Hub
Heavy Duty Idler Gear
Camshaft Gear
Front Oil Seal
Timing Case
Crankshaft Gear
Camshaft and Tappets
CYLINDER BLOCK ASSEMBLY
General Description
Cylinder Block
Cylinder Bore
ENGINE TIMING
General Description
To Set Number 1 Piston To TDC On The Compression Stroke
To Check The Timing Of The Bosch VP30 Fuel Injection Pump
To Check The Timing Of The Bosch EPVE Fuel Injection Pump
To Adjust The Timing Of The Bosch EPVE Fuel Injection Pump
To Check The Timing Of The Delphi DP210 Fuel Injection Pump
To Check The Valve Timing
ASPERATION SYSTEM
General Description
Exhaust Elbow
Turbocharger Side Mount
Turbocharger Faults
Open Engine Breather
Natural Aspirated Engine Breather
Closed Engine Breather
LUBRICATION SYSTEM
General Description
Lubrication System Flow Diagram
Canister Type Oil Filter
Element Type Oil Filter
Filter Head
Sump
Dipstick Tube
Oil Strainer And Suction Pipe
Lubricating Oil Pump Assembly
Relief Valve
FUEL SYSTEM
General Description
Cold Start Advance Unit (KSB)
Typical Fuel System
Fuel Filter Assembly
Atomizers
Fuel Lift Pump And Filter Assembly
Removing Air From The Fuel System
Bosch VP30 Fuel Injection Pump
Bosch EVPE Fuel Injection Pump
Delphi DP210 Fuel Injection Pump
COOLING SYSTEM
General Description
Coolant Flow Diagram
Thermostat
Coolant Pump
Fan
Fan Drive
Lubricating Oil Cooler
Coolant Bypass Pipe
Oil Cooler / Radiator Removal And Installation
FLYWHEEL AND HOUSING
General Description
Flywheel
Ring Gear
Flywheel Housing
ELECTRICAL SYSTEM
General Description
Alternator
Starting Aid (Glow Plug)
Electrical Components
Engine Control Module (ECM)
Voltage Load Protection Module
Programming A New ECM
Speed And Timing Sensor
Pressure Sensor
Temperature Sensor
Wiring Harness
AUXILIARY EQUIPMENT
General Description
Power Steering Pump
Adaptor For A Hydraulic Pump Or A Steering Pump
Exhauster
SPECIAL TOOLS
List Of Special Tools
REAR HAND THROTTLE LEVER
Cable Adjustment Procedure
ACCELERATOR PEDAL
Removal And Installation
Cable Adjustment Procedure
EXHAUST
Removal And Installation
AIR FILTER
Housing Removal And Installation
ENGINE
Removal And Installation

8. HEATING, VENTILATION AND AIR CONDITIONING (HVAC)
HVAC UNIT
Removal
Installation

9. MAIN FRAME
BACKHOE BOOM / SWING LOCK
Removal And Installation
BACKHOE BUCKET TEETH
Removal And Installation
LOADER BUCKET TEETH
Removal And Installation
BOOM
Removal And Installation
CAB (B750)
Removal And Installation
CAB (B730)
Removal And Installation
COUNTERWEIGHT
Removal And Installation
ENGINE COVER
Removal And Installation
ENGINE SIDE COVERS
Removal And Installation
FRONT MUDGUARD
Removal And Installation
PARKING LEVER
Removal And Installation
FUEL TANK
Removal And Installation
GRILL FRAME
Removal And Installation
GRILL
Removal And Installation
KINGPOST
Removal And Installation
SIDE SHIFT
Removal And Installation
STICK
Removal And Installation
FRONT CONSOLE
Removal And Installation
STABILIZER WEAR PADS
Adjustment

10. ALPHABETICAL INDEX
ACCELERATOR PEDAL
AIR CLEANER SERVICE
AIR FILTER
APPROVED LIFT ARM SUPPORT
DEVICE
ASPERATION SYSTEM
AUXILIARY EQUIPMENT
AXLE TOE-IN ADJUSTMENT
BACKHOE BOOM / SWING LOCK
BACKHOE BOOM / SWING LOCK
BACKHOE BUCKET TEETH
BACKHOE CONTROL VALVE (B730)
BACKHOE CONTROL VALVE (B750)
BATTERY
BOOM CYLINDER
BOOM
BRAKE PEDAL AND BOOSTER
BUCKET CYLINDER
CAB (B730)
CAB (B750)
CLAMP CYLINDERS
CLAMSHELL CYLINDER
COOLING SYSTEM
COUNTERWEIGHT
CRANKSHAFT ASSEMBLY
CYLINDER BLOCK ASSEMBLY
CYLINDER HEAD
ELECTRICAL SYSTEM – B730
ELECTRICAL SYSTEM – B750
ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
ENGINE ALTERNATOR / FAN BELT AND AIR
CONDITIONER BELT (IF EQUIPPED) 20-80-1
ENGINE COVER
ENGINE SIDE COVERS
ENGINE TIMING
ENGINE
EXHAUST
FLYWHEEL AND HOUSING
FRONT AXLE – B730 AND B750
FRONT CONSOLE
FRONT MUDGUARD
FRONT SHAFT
FUEL SYSTEM
FUEL TANK
FUSE
GENERAL INFORMATION
GRILL FRAME
GRILL
HVAC UNIT
HYDRAULIC CYLINDERS
HYDRAULIC PUMP
HYDRAULIC RESERVOIR
HYDRAULIC SYSTEM ?
INFORMATION
HYDRAULIC SYSTEM
INSTRUMENT CLUSTERS
KINGPOST
LIFT CYLINDERS
LIFTING AND BLOCKING THE BACKHOE
LOADER
LOADER BUCKET TEETH
LOADER CONTROL VALVE (B730)
LOADER CONTROL VALVE (B750)
LUBRICATION OF THE BACKHOE
LOADER
LUBRICATION SYSTEM
LUBRICATION
MACHINE INFORMATION
MAIN COMPONENTS
MAINTENANCE SAFETY
MANUAL USE
PARKING LEVER
PISTON AND CONNECTING ROD
ASSEMBLIES
POSITION OF MACHINE
REAR AXLE – B730 AND B750
REAR HAND THROTTLE LEVER
REAR SHAFT
RELAY
RETURN LINE CHECK VALVE
SAFETY INSTRUCTION
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
SAFTEY INSTRUCTIONS
SERVICE BRAKE
SIDE SHIFT
SPECIAL TOOLS
SPECIFICATIONS
STABILIZER CYLINDERS
STABILIZER WEAR PADS
STEERING COLUMN AND UNIT
STICK CYLINDER
STICK
STORAGE
SWING CYLINDERS
TECHNICAL PROPERTIES
TILT CYLINDERS (B730)
TILT CYLINDERS (B750)
TIMING CASE AND DRIVE
ASSEMBLY
TIRE MAINTENANCE
TOWING THE BACKHOE
LOADER
TRANSMISSION – B730 AND B750