Komatsu 3D82AE, 3D84E, 3D88E, 4D88E, 4D98E, 4D106, S4D84E, S4D98E, S4D106 Series Diesel Engine Service Manual
281 pages · Publication WEBMTNV000
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- Models
- 3D82AE, 3D84E, 3D88E, 4D88E, 4D98E, 4D106, S4D84E, S4D98E, S4D106 Series Diesel
- Manual type
- Service Manual
- Pages
- 281
- Publication
- WEBMTNV000
- Condition
- Brand new
What's inside
From the manual's own table of contents: 13 sections, 166 entries. See sample pages (PDF, 753 KB)
General12 topics
- Engine Nomenclature
- Specifications
- Fuel Oil, Lubricating Oil and Cooling Water
- Fuel oil
- Lubricating oil
- Cooling water
- Engine External Views
- Structural Description
- Exhaust gas emission regulation
- The Emission Standard in USA
- Engine identification
- Guarantee Conditions for the EPA Emission Standard
Inspection and Adjustment18 topics
- Periodic Maintenance Schedule
- Periodic Inspection and Maintenance Procedure
- Check before Daily Operation
- inspection after initial 50 hours operation
- Inspection every 50 hours
- Inspection every 250 hours or 3 months
- Inspection every 500 hours or 6 months
- Inspection every 1,000 hours or one year
- Inspection every 2000 hours or 2 years
- Adjusting the no-load maximum or minimum speed
- Sensor Inspection
- Oil pressure switch
- Thermo switch
- Water leak check in cooling water system
- Radiator cap inspection
- Thermostat Inspection
- Adjusting Operation
- Long storage
TROUBLESHOOTING3 topics
- Preparation before troubleshooting
- Quick Reference Table for Troubleshooting
- Troubleshooting by measuring Compression Pressure
Disassembly, Inspection and Reassembly of Engines32 topics
- Complete disassembly and reassembly
- Introduction
- Special service tools
- Complete disassembly
- Precautions before and during reassembly
- Adjusting operation
- Cylinder Head: Disassembly, Inspection and Reassembly
- Components (2-valve cylinder head)
- Disassembly procedure
- Reassembly procedure
- Servicing points
- Parts Inspection and measurement
- Valve seat correction
- Valve guide replacement
- Valve stem seal replacement
- Gear Train and Camshaft
- Components
- Disassembly procedure
- Reassembly procedure
- Servicing points
- Parts inspection and measurement
- Oil seal replacement (Gear case side)
- Camshaft bushing replacement
- Cylinder Block
- Components
- Disassembly procedure
- Reassembly procedure
- Servicing points
- Parts inspection and measurement
- Cylinder bore correction
- Piston pin bushing replacement
- Oil seal replacement (Flywheel housing side)
LUBRICATION SYSTEM6 topics
- Lubrication System Diagram
- Trochoid Pump Components
- Disassembly(Reverse the procedure below for assembly)
- Servicing Points
- Parts Inspection and Measurement
- Trochoid pump inspection and measurement
COOLING SYSTEM3 topics
- Cooling Water System
- Cooling Water Pump Components
- Disassembly (Reverse the procedure below for assembly)
FUEL INJECTION PUMP/GOVERNOR7 topics
- Introduction
- Fuel Injection Pump
- Fuel system diagram
- External view and components
- Disassembly procedure
- Assembly procedure
- Servicing points
TURBOCHAGER: Disassembly, inspection and reassembly31 topics
- Structure and Functions
- Main specifications
- Construction
- Structural and functional outline
- Components
- Service Standards and Tightening Torque
- Service standards
- Tightening torque
- Periodic Inspection Procedure
- Periodic inspection intervals
- Inspection procedure
- Waste gate valve adjustment procedure
- Disassembly Procedure
- Preparation for disassembly
- Inspection before disassembly
- Disassembly
- Washing and Inspection procedure
- Washing
- Inspection procedure
- Reassembly Procedure
- Preparation for reassembly
- Reassembly
- Handling after Disassembly and Reassembly
- Instructions for turbocharger installation
- Troubleshooting
- Excessively exhaust smoke
- White smoke generation
- Sudden oil decrease
- Decrease in output
- Poor (slow) response (starting) of turbocharger
- Abnormal sound or vibration
STARTING MOTOR17 topics
- Specifications
- Components
- Troubleshooting
- Names of parts and disassembly procedure
- Inspection and Maintenance
- Service standards
- Assembly
- Characteristic test
- Specifications
- Congiguration drawing
- Troubleshooting
- Component names and disassembly procedure
- Disassembly procedure
- Inspection and maintenance
- Assembly
- Adjustment
- Service standards
ALTERNATOR6 topics
- The 40A Alternator for 3TNV84 and other models
- Components
- Specifications
- Wiring diagram
- Standard output characteristics
- Inspection
ELECTRIC WIRING6 topics
- Electric Wiring Diagram
- PRECAUTION ON ELECTRIC WIRING
- Alternator
- Starter
- Current limiter
- Section area and resistance of electric wire
SERVICE STANDARDS10 topics
- Engine Tuning
- Engine Body
- Cylinder head
- Gear train and camshaft
- Cylinder block
- Lubricating Oil System (Trochoid Pump)
- Outside clearance of outer rotor
- Side clearance of outer rotor
- Inside clearance of inner rotor
- Rotor shaft clearance
TIGHTENING TORQUE for BOLTS and NUTS2 topics
- Tightening Torques for Main Bolts and Nuts
- Tightening Torques for Standard Bolts and Nuts
Inside this manual
Real pages from this service manual (281 pages). Open the sample pages (PDF, 753 KB)
- Specifications, page 30: 1. General
- Troubleshooting, page 70: 3. Troubleshooting
- Diagram, page 186: 9. Starting Motor
- Color page, page 134: 7. Fuel Injection Pump/Governor
- Foldout diagram, page 72: 3. Troubleshooting
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, 281 pages
Quantity one is the manual described above.
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60-day returns
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Other editions and similar models
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).