Komatsu Engine 125-2 series service manual

Description Komatsu Engine 125-2 series service manual

Komatsu Engine 6D125-2, S6D125-2, SA6D125-2, SAA6D125-2 pdf workshop service & repair manual

Technical data, specifications, maintenance, troubleshooting, schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
SAFETY
SAFETY NOTICE

FOREWORD
GENERAL
HOW TO READ THE SHOP MANUAL
HOISTING INSTRUCTIONS
METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER
COATING MATERIALS
STANDARD TIGHTENING TORQUE
ELECTRIC WIRE CODE
CONVERSION TABLE
UNITS

General
APPLICABLE MACHINE
SPECIFICATIONS
GENERAL ASSEMBLY DRAWING
ENGINE PERFORMANCE CURVE
WEIGHT TABLE

STRUCTURE AND FUNCTION
GENERAL STRUCTURE
INTAKE AND EXHAUST SYSTEM
ENGINE BODY
LUBRICATION SYSTEM
FUEL SYSTEM
COOLING SYSTEM
ELECTRICAL SYSTEM
ACCESSORY

TESTING AND ADJUSTING
ADJUSTING ENGINE SPEED SENSOR
ENGINE BODY
FUEL SYSTEM
PERFORMANCE TEST
TROUBLESHOOTING
TESTING AND ADJUSTING TOOL LIST
TESTING AND ADJUSTING DATA

DISASSEMBLY AND ASSEMBLY
DISASSEMBLY
SPECIAL TOOL LIST
1. Starting motor assembly
2. Engine oil cooler assembly
3. Setting to tool A1 (overhaul stand)
4. Fan
5. Engine mounts
6. Air cleaner, bracket assembly
7. Turbocharger, exhaust manifold assembly
8. Corrosion resistor and piping, wiring
9. Engine oil filter
10. Lubrication valve
11. Fuel filter
12. Fuel injection pipes
13. Aftercooler assembly
14. Fuel injection pump assembly
15. Alternator assembly
16. Thermostat housing, water pump
17. Fan pulley, drive assembly
18. Front support
19. Crankshaft pulley, vibration damper
20. Air vent tube, spill pipe
21. Head covers
22. Nozzle holders
23. Rocker arms
24. Crossheads
25. Push rods
26. Rocker arm housings
27. Cylinder head assemblies
28. Oil pan
29. Flywheel
30. Rear seal
31. Flywheel housing
32. Front cover
33. Fuel injection pump drive gear
34. Cam follower covers
35. Cam followers
36. Camshaft
37. Oil pump
38. Idler gear
39. Oil suction pipe
40. Piston and connecting rod assembly
41. Crankshaft
42. Piston cooling nozzle
43. Cylinder liner
ASSEMBLY
1. Cylinder liner
2. Piston cooling nozzle
3. Crankshaft
4. Piston and connecting rod assembly
5. Oil suction pipe
6. Idler gear
7. Oil pump
8. Camshaft
9. Cam followers
10. Cam follower covers
11. Drive gear of fuel injection pump
12. Fuel injection pump assembly
13. Adjusting fuel injection timing
14. Front cover
15. Crankshaft pulley, vibration damper
16. Flywheel housing
17. Rear seal
18. Flywheel
19. Oil pan
20. Cylinder head assemblies
21. Rocker arm housings
22. Push rods
23. Crossheads
24. Rocker arms
25. Adjusting valve clearance
26. Nozzle holders
27. Head covers
28. Spill pipe, air vent tube
29. Pulley, front support
30. Drive sensor, tubes, bracket
31. Water pump, thermostat housing
32. Alternator assembly
33. Adjusting V-belts
34. Aftercooler assembly
35. Fuel injection pump pipes
36. Lubrication valve
37. Engine oil filter
38. Corrosion resistor
39. Turbocharger, exhaust manifold assembly
40. Air cleaner
41. Engine mounts
42. Fan
43. Resetting engine in engine stand
44. Engine oil cooler assembly
45. Starting motor assembly
Filling with oil

MAINTENANCE STANDARD
INTAKE AND EXHAUST SYSTEM
ENGINE BODY
COOLING SYSTEM
LUBRICATION SYSTEM
ACCESSORY

REPAIR AND REPLACEMENTOF PARTS
REPLACING VALVE SEAT INSERTS
REPLACING NOZZLE HOLDER SLEEVE
REPLACING VALVE GUIDE
REPLACING CROSS HEAD GUIDE
GRINDING THE VALVE
GRINDING THE FITTING FACE OF CYLINDER HEAD
REPLACING CAM BUSHING
REPLACING CAM GEAR
REPLACING FLYWHEEL RING GEAR
PRESSURE TEST
REPLACING ENGINE REAR SEAL
REPLACING CONNECTING ROD SMALL END BUSHING
REPLACING MAIN BEARING CAP
GRINDING CRANKSHAFT
REPLACING WEAR SLEEVE (When equipped with sleeve)