Komatsu SA6D140-H-1 Diesel Engine Shop Service Repair Manual PDF Download

Description

Komatsu SA6D140-H-1 Diesel Engine Shop Manual

This 290-page shop manual provides detailed service-workshop information for the Komatsu SA6D140-H-1 diesel engine. It combines engine specifications and system descriptions with testing, adjustment, troubleshooting, overhaul procedures, maintenance limits, and repair or replacement instructions for major engine components.

Engine & Application Coverage

• Engine model: SA6D140-H-1
• Applicable machine: Maintenance diesel motor car
• Configuration: 6 cylinders, 140 × 165 mm bore × stroke
• Total piston displacement: 15.24 L (15,240 cc)
• Flywheel horsepower: 386 kW at 2,000 rpm / 518 HP at 2,000 rpm (Gross)
• Maximum torque: 1,961 Nm at 1,400 rpm / 200 kgm at 1,400 rpm (Gross)
• Turbocharger: KOMATSU KTR110G
• Fuel injection pump: Bosch PE-P (PS7S) type
• Starting motor: 24V, 7.5 kW
• Battery: 12V 170 Ah × 2
• Cooling: Aftercooled engine; engine-only coolant amount 27 L
• Lubricating oil amount: 58 L, with 51 L refill capacity shown in the specifications

Main Systems & Subjects Included

• General specifications, applicable-machine information, assembly drawings, component weights, and engine performance curve
• Intake and exhaust system, air cleaner, turbocharger, and aftercooler-related components
• Cylinder head, cylinder block, pistons, connecting rods, crankshaft, camshaft, timing gears, valve mechanism, flywheel, and flywheel housing
• Lubrication system, lubrication chart, oil pump, regulator and piston-cooling valves, full-flow filter, bypass filter, and oil cooler
• Fuel system, fuel-system chart, fuel injection pump, electronic governor (RED-III), controller information, feed pump, priming pump, injection nozzles, and fuel filter
• Cooling system, cooling-system chart, water pump, and thermostat
• Starting motor and related engine service information

Testing, Adjustment & Troubleshooting Coverage

The testing and adjusting section provides procedures and reference data for diagnosing engine condition and restoring correct settings after service work.

• Engine speed sensor adjustment
• Intake resistance and boost-pressure measurement
• Valve-clearance adjustment
• Exhaust gas color checks
• Compression-pressure and blow-by-pressure measurement
• Engine oil-pressure measurement
• Fuel injection timing and injection-pressure testing and adjustment
• Fuel injection pump and governor adjustment
• Fuel injection volume standards and engine-output adjustment
• Cooling-system leakage checks and coolant corrosion-preventive measurement
• Run-in and engine performance test standards
• Extensive troubleshooting charts, including electronic-governor diagnosis displays and fault remedies

Disassembly, Assembly & Overhaul Procedures

Step-by-step engine disassembly and assembly coverage extends from external components through the main internal engine assemblies. Procedures include the starting motor, turbocharger, exhaust manifold, aftercooler assembly, fuel injection equipment, filters, oil pan, flywheel, cylinder head, water pump, oil cooler, camshaft, timing gears, oil pump, pistons and connecting rods, crankshaft, and cylinder liners.

The manual also includes detailed KTR110 turbocharger disassembly and assembly, special-tool information, tightening instructions, valve-clearance setting, and oil-refilling procedures.

Maintenance Standards & Component Repair

Maintenance-standard tables provide inspection criteria, standard dimensions, clearances, permissible limits, repair limits, and tightening data for components such as the turbocharger, cylinder head, valves and guides, rocker mechanism, cylinder block and liners, crankshaft, camshaft, pistons, connecting rods, oil pump, water pump, and thermostat.

The repair and replacement section covers jobs including grinding the cylinder-head mounting face, replacing valve-seat inserts, crosshead guides and valve guides, grinding valves, cylinder-head pressure testing, replacing cam bushings and gears, replacing the flywheel ring gear and connecting-rod small-end bushing, and reclamation work such as cylinder-block and crankshaft repairs.

Why This Manual Is Useful

This manual brings the information needed for both diagnosis and major mechanical work into one engine-specific reference. Detailed system explanations help identify how components function, while testing procedures, troubleshooting charts, assembly instructions, service limits, and repair standards support decisions about adjustment, reuse, machining, or replacement during workshop repairs.

Instant PDF Download

Delivered as an instant digital PDF download after payment. Keep it available on a computer, tablet, or phone for quick reference while diagnosing, servicing, or rebuilding the SA6D140-H-1 engine.