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Home / Caterpillar / Caterpillar Service Manual PDF
Caterpillar K21, K25 Gasoline Engine Service Manual 99789-80110
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Caterpillar K21, K25 Gasoline Engine Service Manual 99789-80110

$50.00

  • Type Of Manual: Service Manual
  • Manual ID: 99789-80110
  • Number of Pages: 214
  • Size: 4.6MB
  • Format: PDF
Category: Caterpillar Service Manual PDF
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  • Caterpillar K15, K21, K25 Gasoline Engine Service Manual 99789-87100 Caterpillar K15, K21, K25 Gasoline Engine Service Manual 99789-87100 $50.00
  • Model List:

    • K21 Gasoline Engine, K25 Gasoline Engine
  • 1. How to use this manual
  • 1.1. Description
  • 1.2. Definition of Terms
  • 1.3. Definition of Units
  • 1.4. Description
  • 2. Precautions for safety and quality
  • 2.1. Reduction of Risk Operation
  • 2.2. Correct Operation
  • 2.3. Precautions for Radio Equipment Installation
  • 3. Precautions
  • 3.1. Precautions in Draining Engine Coolant
  • 3.2. Precautions for Disconnecting Fuel Piping
  • 3.3. Precautions for Removing and Disassembling
  • 3.4. Precautions for Inspection, Correction, and Replacement
  • 3.5. Precautions for Assembly and Installation
  • 3.6. Parts Requiring Angle Tightening
  • 3.7. Caution for Use of Power Tools
  • 3.8. Precautions for Liquid Gasket Application
  • 4. Tightening torque
  • 4.1. Standard Bolt Tightening Torque
  • 4.2. Engine Part Tightening Torque
  • 5. Special Service Tools
  • 6. Engine outside drawings
  • 7. MAIN SPECIFICATIONS
  • 8. Standard and repair limit
  • 9. STAMPED LOCATION OF ENGINE NO.
  • 10. Trouble diagnosis
  • 10.1. Engine Adjustment
  • 10.2. Engine LPG Fuel System
  • 11. Engine maintenance
  • 11.1. Specifications
  • 11.2. Tightening Torque
  • 11.3. Maintenance Schedule
  • 11.4. Oil and Grease, and Capacity
  • 11.5. On Board Inspection and Service
  • 12. Specifications
  • 13. Tightening torque
  • 14. Trouble diagnosis
  • 15. ENGINE INSPECTION AND ADJUSTMENT
  • 15.1. Engine Body Related
  • 15.2. Ignition and Fuel Systems
  • 16. SERVICE DATA AND SPECIFICATIONS (SDS)
  • 16.1. Electronic Control System Specifications
  • 17. Precautions
  • 17.1. Precautions for Draining Engine Coolant
  • 17.2. Precautions for Disconnecting Fuel Piping
  • 17.3. Precautions for Removing and Disassembling
  • 17.4. Precautions for Inspection, Correction, and Replacement
  • 17.5. Precautions for Assembly and Installation
  • 17.6. Parts Requiring Angle Tightening
  • 17.7. Caution for Use of Power Tools
  • 17.8. Precautions for Liquid Gasket Application
  • 18. ENGINE OUTSIDE DRAWINGS
  • 19. MAIN SPECIFICATIONS
  • 20. ADJUSTMENT value
  • 21. Tightening torque
  • 21.1. Standard Bolt Tightening Torque
  • 21.2. Engine Part Tightening Torque
  • 22. Trouble diagnosis
  • 23. Special Service Tools
  • 24. Removal and installation of engine
  • 24.1. Removal
  • 24.2. Installation
  • 24.3. Inspection
  • 25. Engine service
  • 25.1. Engine Disassembly
  • 25.2. Inspection and Correction
  • 25.3. Engine Assembly
  • 25.4. Engine Assembly (Contd)
  • 26. Precautions
  • 26.1. On Board Diagnostic (OBD) System of Engine
  • 26.2. Precaution
  • 27. Preparation
  • 28. preparation
  • 28.1. Special Service Tools
  • 29. Description
  • 29.1. Description
  • 30. trouble diagnosis
  • 30.1. Component Parts Location
  • 30.2. ECM Component
  • 30.3. Circuit Diagram
  • 30.4. ECM Terminal
  • 31. Trouble Diagnosis
  • 31.1. How to Proceed with Trouble Diagnosis
  • 31.2. Diagnosis Chart by Symptom
  • 31.3. Description
  • 31.4. Fail-Safe Function
  • 31.5. Table of DTC
  • 31.6. Service Tool
  • 31.7. Self-Diagnosis Function (Without Service tool)
  • 31.8. ECM Input/Output Monitor
  • 31.9. ECM Active Test
  • 32. Basic inspection
  • 32.1. Inspection of Idle Speed and Ignition Timing
  • 32.2. Throttle Valve Closed Position Learning and Idle Air Volume Learning
  • 32.3. Accelerator Pedal Released Position Learning
  • 32.4. Fuel Pressure Inspection
  • 32.5. Fuel Pressure Release
  • 33. COMPONENT PARTS INSPECTION
  • 33.1. Crankshaft Position Sensor (POS)
  • 33.2. Camshaft Position Sensor (PHASE)
  • 33.3. Mass Air Flow Sensor
  • 33.4. Engine Coolant Temperature Sensor
  • 33.5. Throttle Position Sensor 1, 2 (Electric throttle control actuator assembly)
  • 34. Component Parts Inspection
  • 34.1. Accelerator Pedal Position Sensors 1, 2 (Accelerator work unit)
  • 34.2. Intake Air Temperature Sensor (Joined with mass air flow sensor)
  • 34.3. Stop Lamp Switch
  • 34.4. Spark Plug
  • 34.5. Ignition Coil
  • 34.6. Injector
  • 34.7. Fuel Pump
  • 34.8. Electric Throttle Control Motor (Electric throttle control actuator assembly)
  • 34.9. Heated Oxygen Sensor
  • 34.10. Map Sensor (Atmosphere Pressure Sensor)
  • 34.11. LPG Injector
  • 34.12. LPG Assistance Injector
  • 34.13. PTC Heater (Integrated with vaporizer)
  • 35. pcv gas recirculation devi
  • 35.1. System Diagram
  • 35.2. Component Parts Inspection
  • 36. ECM components
  • 36.1. Removal and Installation
  • 37. Lubrication system
  • 37.1. Specifications
  • 37.2. Adjustment Value
  • 37.3. Oil Pressure
  • 37.4. Tightening Torque
  • 37.5. Trouble Diagnosis
  • 37.6. Lubrication Schematic Diagram
  • 37.7. Oil Pump
  • 38. Engine coolant system
  • 38.1. Specifications
  • 38.2. Adjustment Value
  • 38.3. Tightening Torque
  • 38.4. Trouble Diagnosis
  • 38.5. Cooling System Configuration
  • 38.6. Water Pump
  • 38.7. Thermostat
  • 39. Emission control system
  • 40. ENGINE OUTSIDE DRAWINGS
  • 41. SYSTEM DIAGRAM
  • 42. UNIT LAYOUT
  • 43. LPG FUEL SYSTEM TROUBLE DIAGNOSIS
  • 44. DISASSEMBLY AND ASSEMBLY OF FUEL SYSTEM
  • 44.1. Removal and Installation of Electronic Control Throttle Assembly
  • 44.2. Removal and Installation of Gasoline Fuel Injector (Electronic Controlled Gasoline and Combined Use)
  • 44.3. LPG device (Specifications for LPG and combined use)
  • 44.4. Vaporizer Mechanism and Operation
  • 45. DISASSEMBLY AND ASSEMBLY OF INJECTOR HOLDER
  • 45.1. LPG Fuel Injector
  • 45.2. LPG Assist Fuel Injector
  • 45.3. LPG Fuel Pressure Sensor
  • 45.4. Relief Valve (2 Relief Valves)
  • 46. DISASSEMBLY AND ASSEMBLY OF VAPORIZER
  • 46.1. Tar drain, Removal, Installation, Disassem- bly and Inspection of Vaporizer
  • 47. Adjustment value
  • 48. Trouble diagnosis
  • 49. Starter motor
  • 49.1. Specifications
  • 49.2. Components
  • 49.3. Component Parts Location
  • 49.4. Overhaul
  • 49.5. Assembly Inspection
  • 50. ALTERNATOR
  • 50.1. Components of Alternator
  • 50.2. Disassembly
  • 50.3. Inspection
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