Kubota Tractor B21 Loader TL421 Backhoe BT751 workshop service manual

Description Kubota Tractor B21 Loader TL421 Backhoe BT751 workshop service manual

Kubota Tractor B21, Front Loader TL421, Backhoe BT751 pdf workshop service & repair manual

MANUAL CONTENT:
GENERAL
TRACTOR IDENTIFICATION
MODEL NAME AND SERIAL NUMBERS
ENGINE
CYLINDER NUMBER
GENERAL PRECAUTIONS
HANDLING PRECAUTIONS FOR ELECTRICAL PARTS AND WIRING
WIRING
BATTERY
FUSE
CONNECTOR
HANDLING OF CIRCUIT TESTER
LUBRICANTS, FUEL AND COOLANT
TIGHTENING TORQUES
GENERAL USE SCREWS, BOLTS AND NUTS B21
STUD BOLTS
HYDRAULIC FITTINGS
MAINTENANCE
CHECK AND MAINTENANCE
DAILY CHECK
Tractor
Front Loader
OTHERS
SPECIAL TOOLS
SPECIAL TOOLS FOR ENGINE
SPECIAL TOOLS FOR TRACTOR
TIRES
TIRE PRESSURE
TREADS
TIRE LIQUID INJECTION
IMPLEMENT LIMITATIONS

PREPARATION
TIGHTENING TORQUES
DISASSEMBLING AND ASSEMBLING
DISMOUNTING FRONT LOADER ASSEMBLY
SEPARATING CANOPY
SEPARATING ROPS AND FRAME
SEPARATING TRACTOR FRAME

ENGINE
FEATURES

CLUTCH
FEATURE
PTO SYSTEM
STRUCTURE
PTO CLUTCH
Shift Linkage
Oil Flow
Operation

TRANSMISSION
STRUCTURE
HYDROSTATIC TRANSMISSION (HST)
POWER TRAIN
Structure
Oil Flow
Function of Components
Operation
Range Gear Shift Section
Front Wheel Drive Section
SHIFT LINKAGE MECHANISM
Range Gear Shift Lever
Front Wheel Drive Lever
AUTO THROTTLE ADVANCE (ATA)
CRAWL CONTROL

REAR AXLE
STRUCTURE

BRAKES
LINKAGEBACKHOE
REAR PARKING BRAKE LINKAGE
OPERATION

FRONT AXLE
STRUCTURE

STEERING
STRUCTURE
HYDRAULIC CIRCUIT

HYDRAULIC SYSTEM
STRUCTURE
HYDRAULIC CIRCUIT
FUNCTION OF COMPONENT PARTS
POSITION CONTROL LINKAGE
DIRECTIONAL VALVE
RELIEF VALVE
HYDRAULIC CYLINDER
OTHERS
CONTROL VALVE
Position Control Valve
CYLINDER SAFETY VALUE
Cylinder Safety Value
REGULATING VALVE

ELECTRICAL SYSTEM
WIRING DIAGRAM
DIAGRAM
Main Harness
Lighting Harness
ELECTRONIC CONTROL PANEL
SYSTEM OUTLINE AND ELECTRICAL CIRCUIT
System Outline
Control Items
CONSTRUCTION AND FUNCTION OF COMPONENTS
BASIC CONTROL SYSTEM
Normal Display
Attention Display (At Engine Starting)
Service Interval Alert
Warning Display or Warning Information
Lamp Control
ASSISTANT CONTROL SYSTEM
Fail-safe Function
Self-diagnosis Function
Testing, Setting and Adjusting Function
Glow Control
ENGINE STARTING SYSTEM AND STOPPING SYSTEM
CIRCUIT
RELATED SWITCHES
ENGINE STARTING CONDITIONS
AUTOMATIC ENGINE STOP
3RD FUNCTION VALVE WIRING (IF EQUIPPED)

FRONT LOADER
HYDRAULIC SYSTEM
STRUCTURE
OPERATION
OVERLOAD RELIEF VALVE
BOOM CYLINDER AND BUCKET CYLINDER
3RD. FUNCTION SOLENOID VALVE
Hydraulic Circuit