Caterpillar GK21E, GK25E Engine Electronic Control System Service Manual
173 pages · Publication 99789-40100
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- Models
- GK21E, GK25E
- Manual type
- Service Manual
- Pages
- 173
- Publication
- 99789-40100
- Condition
- Brand new
What's inside
From the manual's own table of contents: 106 topics. See sample pages (PDF, 267 KB)
- HOW TO USE THIS MANUAL
- Description
- Definition of Terms
- Definition of Units
- QUALITY
- Safe Operation
- Correct Operation
- Installation
- TIGHTENING TORQUE
- Standard Bolt Tightening Torque
- ENGINE OUTSIDE DRAWINGS
- MAIN SPECIFICATIONS
- STAMPED LOCATION OF ENGINE NO
- ENGINE MAINTENANCE
- Specifications
- Maintenance Schedule
- Oil and Grease, and Capacity
- On Board Inspection and Service
- Engine Body Related
- Ignition Systems
- PRECAUTIONS
- Precautions for Draining Engine Coolant
- Precautions for Disconnecting Fuel Piping
- Disassembling
Show all 106 topics
- Replacement
- Precautions for Assembly and Installation
- Parts Requiring Angle Tightening
- Caution for Use of Power Tools
- Precautions for Liquid Gasket Application
- SERVICE DATA ON SPECIFICATION
- Engine Part Tightening Torque
- TROUBLE DIAGNOSIS
- OF ENGINE
- Removal
- Inspection
- ENGINE SERVICE
- Engine Disassembly
- Inspection and Correction
- Engine Assembly
- LUBRICATION SYSTEM
- Oil Pressure
- Lubrication Schematic Diagram
- ENGINE COOLANT SYSTEM
- Adjustment Value
- Cooling System Configuration
- Water Pump
- Thermostat
- ELECTRONIC CONTROLLED TYPE)
- FUEL SYSTEM
- Throttle Assembly
- and Combined Use)
- LPG Injector Holder
- LPG Fuel injector
- LPG Assist fuel injector
- LPG Fuel pressure sensor
- Relief valve (2 relief valves)
- and Inspection of Vaporizer
- Precaution
- PREPARATION
- Special Service Tools
- Component Parts Location
- ECM Component
- Circuit Diagram
- ECM Terminal
- How to Proceed with Trouble Diagnosis
- Diagnosis Chart by Symptom
- Fail-Safe Function
- Table of DTC
- Service Tool
- (Without Service tool)
- ECM Input/Output Monitor
- ECM Active Test
- BASIC INSPECTION
- Ignition Timing
- and Idle Air Volume Learning
- Position Learning
- Fuel Pressure Inspection
- COMPONENT PARTS INSPECTION
- Crankshaft Position Sensor (POS)
- Camshaft Position Sensor (PHASE)
- Mass Air Flow Sensor
- Engine Coolant Temperature Sensor
- assembly)
- (Accelerator work unit)
- (Joined with mass air flow sensor)
- Stop Lamp Switch
- Spark Plug
- Ignition Coil
- Injector
- Fuel Pump
- throttle control actuator assembly)
- Heated Oxygen Sensor
- LPG Injector
- LPG Assistance Injector
- LPG Cut Sol Valve
- ECM COMPONENTS
- Removal and Installation
- BLOW-BY GAS RECIRCULATION DEVICE
- System Diagram
- STARTER MOTOR (DRY TYPE)
- Components
- Overhaul
- Assembly Inspection
- ALTERNATOR
- Exploded View
- Disassembly
Inside this manual
Real pages from this service manual (173 pages). Open the sample pages (PDF, 267 KB)
- Specifications, page 31: SERVICE DATA ON SPECIFICATION
- Troubleshooting, page 129: TROUBLE DIAGNOSIS
- Diagram, page 151: COMPONENT PARTS INSPECTION
This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 173 pages
Quantity one is the manual described above.
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60-day returns
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Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).