Service Manual Download

Service Manual Download

Cummins QSX15 Service Manual Download FRee

Cummins QSX15 Repair Manual Direct download in PDF format.

Language: english 
Format: PDF 
Zoom in/out: Yes 
Printable: Yes 
Quality: Factory 
Pages: 1000 

DIRECT DOWNLOAD LINK - CLICK HERE



Cummins Repair & Troubleshooting Manual Contents: 

Introduction 

Familiarization 
1. Air intake system overview & flow diagram 
2. Complete engine overview & info 
3. Compressed air system & flow diagram 
4. Cooling system overview & flow diagram 
5. Cylinder block overview & info 
6. Engine electrical equipment overview 
7. Engine testing overview including dyno testing 
8. Flow diagram for exhaust system 
9. Fuel system overview & flow diagram 
10. Injectors & fuel line overview including operation theory for PT & STC fuel system 
11. Lubrication system overview & flow diagram 

Troubleshooting Symptoms 
1. Troubleshooting Procedures & Techniques 
2. Air compressor problems 
3. Alternator problems 
4. Cooling system problems 
5. Excessive crankcase blowby 
6. Low fuel pressure 
7. Engine brake problems 
8. Hard starting 
9. Engine noises 
10. Low power 
11. Misfire or runs rough 
12. Engine dies 
13. Speed surge 
14. Starts but dies 
15. Excessive vibration 
16. Fuel consumption 
17. Fuel in coolant 
18. Fuel in oil 
19. Low boost 
20. Excessive oil consumption 
21. Smoking 
22. Governor problems 
23. Troubleshooting overview 
24. More 

Complete Engine 
1. Removal & Installation 

Cylinder Block 
1. Accessory drive seal 
2. Con rod bearings 
3. Main bearings 
4. Thrust bearings 
5. Camshaft, bushings, clearance & bearing supports 
6. Crankshaft inspection & servicing 
7. Crankshaft gears, pulley & seals 
8. Cylinder block, servicing, liners, liner seats, counterbore 
9. Gear cover accessory drive bushing 
10. Pistons & rings 
11. Con rods 
12. Piston cooling pipes 
13. Vibration damper 

Cylinder Head 
1. Clean / inspect 
2. Finishing / surfacing 
3. Installation / removal 
4. Leak / pressure test 
5. Head gasket general info 

Rocker Arms 
1. Crankcase breather 
2. Overhead adjusting, finishing, general info 
3. Rocker arm, clean, inspect & service 
4. Rocker cover & housing 
5. Special tools 

Cam Followers / Push Rods or Tubes 
1. Remove, clean, inspect, disassemble, assemble & install 

Fuel System 
1. Fuel Flow, inspect & test 
2. Fuel pump, inspect & test 
3. Check valve 
4. High idle speed adjust 
5. Idle speed adjust 
6. Pressure regulator 
7. Pulsation damper 
8. Throttle lever & linkage 
9. VS throttle shaft housing 
10. Shut-off valve 
11. Service tools 
12. Stall speed test 
13. VS governor adjusting screw sealing washers & idle spring 

Injectors & Fuel Lines 
1. AFC no air check 
2. Air in fuel 
3. Cylinder misfire or smokes 
4. ECM fuel plate, fuel cooled 
5. Fuel drain line restriction 
6. Fuel filter, spin on 
7. Fuel inlet restriction 
8. Fuel supply lines 
9. Injector 
10. Service tools 
11. Static injector timing 

Lubrication System 
1. Lube oil & filter analysis 
2. Lube oil contamination 
3. Lube oil cooler & transfer housing 
4. Dipstick & housing 
5. Lube oil filter, spin on 
6. Lube oil by-pass valve 
7. Lube oil filter head 
8. Lube oil high pressure relief valve 
9. Lube oil leaks 
10. Lube oil pan 
11. Lube oil pressure gauge 
12. Lube oil pressure regulator 
13. Lube oil pump 
14. Lube oil pump signal tube & signal tube oriface 
15. Lube oil system diagnostics 
16. Lube oil temperature gauge 
17. Lube oil thermostat 
18. Lube oil transfer tube 
19. Lube oil viscosity sensor 

Cooling System 
1. Coolant filter, head & valve 
2. Temperature gauge 
3. Thermostat, housing & seal 
4. Vent lines 
5. Cooling system, servicing 
6. Cooling system, air or combustion gas test 
7. Cooling fan & water pump drive belt 
8. Fan clutch, electric / on-off / viscous 
9. Fan hub, belt driven 
10. Fan shroud, spacer & pulley 
11. Cooling fan 
12. Radiator, hoses & cap 
13. Radiator shutters 
14. Heat exchanger 
15. Sea water pump 
16. Water pump & idler 

Drive Units 
1. Accessory drive & pulley 
2. Accessory drive pulley wear sleeve 

Air Intake System 
1. Aftercooler 
2. Intake manifold 
3. Intake restriction 
4. Air leaks, intake & exhaust system 
5. Charge air cooler 
6. Turbocharger 
7. Turbocharger inspection 

Exhaust System 
1. Exhaust manifold, dry 
2. Exhaust restriction 

Compressed Air System 
1. Air compressor 
2. Carbon buil-up 
3. Air compressor head 
4. Pin bore wear 
5. Unloader & valve assy. 
6. Governor testing (compressor pumps continuously or will not pump 
7. Air leaks 

Electrical Equipment 
1. Alternator 
2. Batteries, cables & connections 
3. Alternator drive belt 
4. Starter magnetic switch 
5. Starter solenoid 
6. Starter switch 
7. Starter motor 

Engine Testing 
1. Dyno worksheet 
2. Engine run-in (dyno) 
3. Engine run-in (without dyno) 
4. Engine testing with dyno 

Mounting Adaptations 
1. Engine lifting brackets 
2. Engine mounts 
3. Support brackets 
4. Flywheel & ring gear 
5. Flywheel housing 

Miscellaneous 
1. Cup plugs 
2. Pipe plugs 
3. Straight thread fittings & plugs 

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