Kubota KX019-4 Workshop Manual — RY911-29401

Overview

This is the Kubota Workshop Manual for the KX019-4 (document code RY911-29401, 2022 edition). It provides service and repair procedures for Kubota KX019-4 excavator.

Models and Coverage

• Models: KX019-4
• Equipment type: Excavator
• Applicability: Kubota KX019-4 series excavators
• Document code: RY911-29401
• Year: 2022

Document Details

Manufacturer

KUBOTA

Manual type

Workshop Manual

Models

KX019-4

Document code

RY911-29401

Year

2022

Language

English

Page count

238

Format

PDF

Contents

The manual is structured as follows. Page references correspond to the original PDF pagination.

1. SAFETY

• SAFETY RULES (1-1)
  • Locking the controls (1-15)
    • Locking the control lever (1-15)
  • Engine emergency stop (1-15)
  • Protective structure canopy (1-15)
  • Locking the swivel frame (1-15)
  • Locking the swivel frame (1-16)

2. GENERAL

• GENERAL WORKING INSTRUCTIONS (2-1)
• PRELIMINARY WORKING INSTRUCTIONS (2-11)
• CONCLUDING WORKING INSTRUCTIONS (2-15)
• TIGHTENING TORQUES (2-17)
• GENERAL MACHINE INFORMATION (2-21)
• GENERAL ELECTRICAL INFORMATION (2-27)
  • Electrical circuit diagram description (2-27)
  • Electrical circuit diagram unit symbol (2-27)
  • Electrical wiring color coding (2-28)
  • Electrical wiring clamp (2-28)
  • Bus descript
  • Bus description (2-29)
  • Composite terminal description (2-29)
• Connector handling precaution (2-29)
• Connector diagram description (2-29)
• TRANSPORTING THE MACHINE (2-31)
• SPECIAL JIGS AND TOOLS (2-33)

3. MAINTENANCE

• MAINTENANCE INTERVALS TABLE (3-1)
• LUBRICANT QUANTITY (3-7)
• RECOMMENDED LUBRICANTS (3-9)
• RECOMMENDED LPG CYLINDER DIMENSIONS (3-11)
• DAILY CHECK (3-13)
  • Chec
  • Checking and setting the LPG cylinder (3-13)
  • Checking the exhaust system leakage (3-13)
  • Checking the fuel level (3-14)
  • Checking the fuel line connections (3-15)
• EVERY 50 HOURS (3-17)
  • Checking the fuel line leakage (3-17)
• EVERY 200 HOURS (3-19)
  • Checking the intake air line hoses (3-19)
  • Checking the regulator hose and vaporizer hose (3-19)
• EVERY 250 HOURS (3-21)
  • Cleaning and adjusting the spark plug (3-21)
  • Checking the fuel line hoses (3-21)
• EVERY 1000 HOURS (3-23)
  • Replacing the spark plug (3-23)
  • Replacing the LPG fuel filter (3-23)
  • Replacing the LPG fuel pre-filter (3-24)
  • Checking the engine valve clearance (3-25)
• AFTER 1000 HOURS (3-29)
• EVERY 2 YEARS (3-31)
  • Replacing the fuel line hoses (3-31)
  • Replacing the regulator hose and vaporizer hose (3-31)
  • Checking the inner parts of the vaporizer (3-32)
  • Replacing the breather hose (3-33)
• VICE AS REQUIRED (3-35)

4. MACHINE BODY

• MECHANISM (4-1)
  • Bucket dimensions (4-2)
  • Arm dimensions (4-4)
• Boom dimensions (4-6)
  • Blade dimensions (4-8)
  • Rubber track dimensions (4-8)
  • Front idler dimensions (4-8)
  • Sprocket dimensions (4-9)
  • Track roller dimensions (4-9)
  • Pin, bushing, and shim dimensions (4-10)
• SERVICING (4-17)
  • Service specifications for the machine body (4-17)

5. ENGINE

• MECHANISM (5-1)
• Lubricating system general description (5-8)
  • Cooling system general description (5-8)
  • Intake air system general description (5-9)
  • Fuel system general description (5-10)
  • Exhaust system general description (5-11)
• SERVICING (5-13)
  • Engine troubleshooting (5-13)
  • Service specifications for the engine (5-15)
  • Measuring engine compression pressure (5-15)
  • Measuring engine oil pressure (5-15)
  • Fuel line (5-16)
    • Removing and installing the LPG cylinder (5-16)
    • Removing and installing the fuel reserve tank (5-18)
    • Fuel hose routing (5-20)
  • Engine (5-24)
    • Removing and installing the engine (5-24)
    • Removing the alternator (5-29)
    • Removing the starter motor (5-29)
    • Removing and installing the vaporizer (5-30)
    • Removing and installing the spark plug (5-32)
    • Removing the electronic throttle body (5-33)
  • Radiator (5-35)
    • Removing the radiator (5-35)
  • Muffler (5-41)
    • Removing and installing muffler (5-41)

6. HYDRAULIC SYSTEM

• MECHANISM (6-1)
  • Hydraulic pump specifications (6-2)
  • Hydraulic pump hydraulic circuit (6-3)
  • Piston pump P-Q performance (6-4)
  • Control valve specifications (6-5)
  • Control valve hydraulic circuit (6-7)
  • Swivel motor specifications (6-8)
  • Swivel motor hydraulic circuit (6-9)
  • Travel motor specifications (6-10)
  • Travel motor hydraulic circuit (6-11)
• Hydraulic cylinder specifications (6-12)
  • Swivel joint specifications (6-13)
  • Pilot control valve specifications (6-13)
  • Pilot control valve specifications (6-15)
  • Unload valve specifications (6-16)
  • Proportional valve specifications (6-17)
  • Third line valve specifications (6-17)
• SERVICING (6-19)
  • Service specifications for the hydraulic system (6-19)

7. ELECTRICAL SYSTEM

• MECHANISM (7-1)
  • Electrical device layout (7-1)
  • Switch layout (7-2)
  • Fuse and relay layout (7-1)
  • Fuse and relay layout (7-3)
  • Slow blow fuse layout (7-4)
  • Communication port layout (7-4)
  • Ground wiring layout (7-4)
  • Power supply electrical circuit diagram (7-5)
  • Accessory electrical circuit diagram (7-6)
  • Battery charge electrical circuit diagram (7-7)
  • Engine start electrical circuit diagram (7-8)
  • Lever lock electrical circuit diagram (7-9)
  • AUX operation electrical circuit diagram (7-11)
  • Work light electrical circuit diagram (7-13)
  • Fuel reserve tank electrical circuit diagram (7-14)
  • Meter panel function (7-15)
  • Display mode (7-15)
  • Operating normal mode (7-16)
  • Operating user setting mode (7-16)
  • Service dealer mode (7-17)
    • Service dealer mode list (7-17)
    • Operating service dealer mode (7-19)
    • Operating SET-1 (Tester mode) (7-19)
    • Operating SET-2 (Reading error history) (7-20)
    • Operating SET-3 (Clearing error history) (7-20)
    • Operating SET-4 (Dealer settings) (7-20)
    • Operating SET-5 (Reading all error history) (7-20)
    • Operating SET-5 (Reading all error history) (7-21)
• SERVICING (7-23)
  • Error warning list (Red lamp) (7-23)
  • Engine system error (Red lamp) (7-24)
  • Lamp warning list (7-26)
  • Handling E:053CAN communication error (Engine) (7-27)

8. APPENDICES

• APPENDICES (8-1)
  • Service specifications for the machine body (8-1)
  • Service specifications for the engine (8-3)
  • Service specifications for the hydraulic system (8-3)
    • Piston pump P-Q performance (8-6)
    • AUX P-Q performance (8-7)
  • Service dealer mode (8-6)
  • Service dealer mode (8-9)
    • Tester mode (8-9)
    • Default settings (8-10)
• ABBREVIATIONS
• KX019-4 LPG
• DANGER
• 1-2 KX019-4 LPG
• KX019-4 LPG
• 1-4 KX019-4 LPG
• KX019-4 LPG
• 1-6 KX019-4 LPG
• KX019-4 LPG
• 1-8 KX019-4 LPG
• KX019-4 LPG
• 1-10 KX019-4 LPG
• KX019-4 LPG
• 1-12 KX019-4 LPG
• KX019-4 LPG
• 1-14 KX019-4 LPG
  • Locking the controls
    • Locking the control lever
  • Engine emergency stop
  • Protective structure canopy
• KX019-4 LPG
  • Locking the swivel frame
• 1-16 KX019-4 LPG
• • A
• DGUV79:
• KX019-4 LPG
• GENERAL WORKING INSTRUCTIONS
• – T
• KX019-4 LPG
• 2-2 KX019-4 LPG
  • in.) without making any gaps
  • in.)
  • to 5.0 mm (0.12 to
  • in.)
• KX019-4 LPG
• 2-4 KX019-4 LPG
• CAUTION
• KX019-4 LPG
• 2-6 KX019-4 LPG
• KX019-4 LPG
• IMPORTANT
• 2-8 KX019-4 LPG
• KX019-4 LPG
• 2-10 KX019-4 LPG

Note: The full manual contains approximately 238 pages of detailed diagnostic procedures, DTC tables, wiring diagrams, and connector pinouts that extend well beyond the Contents listing above. The manual includes 0 DTC entries with detailed inspection steps for each fault code, plus active test routines, data monitor signals, and checking-by-system procedures.