Complete workshop reapir service manual with electrical wiring diagrams for Caterpillar 3044C Diesel Engines. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Caterpillar 3044C Diesel Engines service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

RENR7577 - Specifications (3044C Industrial Engine and Engines for Caterpillar Built Machines)
RENR7578 - Systems Operation (3044C Industrial Engine & Engines for Caterpillar Built Machines)
RENR7578 - Testing & Adjusting (3044C Industrial Engine & Engines for Caterpillar Built Machines)
RENR7582 - Disassembly & Assembly (3044C Industrial Engine & Engines for Caterpillar Built Machines)
SENR3981 - Schematic (Fluid Power & Electrical Graphic Symbols)

TABLE OF CONTENTS
RENR7577 - Specifications (3044C Industrial Engine and Engines for Caterpillar Built Machines)....1
  Alternator and Regulator....3
  Belt Tension Chart....6
  Camshaft....8
  Connecting Rod Bearing Journal....12
  Connecting Rod....17
  Crankshaft Pulley....26
  Crankshaft Seals....29
  Crankshaft....31
  Cylinder Block....35
  Cylinder Head Valves....42
  Cylinder Head....51
  Electric Starting Motor....54
  Engine Design....56
  Engine Oil Bypass Valve....59
  Engine Oil Pan....62
  Engine Oil Pressure....65
  Engine Oil Pump....68
  Engine Oil Relief Valve....73
  Exhaust Manifold....75
  Flywheel....77
  Front Housing and Covers....79
  Fuel Injection Lines....82
  Fuel Injection Nozzles....84
  Fuel Injection Pump....91
  Fuel Transfer Pump....94
  Gear Group (Front)....96
  Glow Plugs....99
  Lifter Group....102
  Main Bearing Journal....104
  Piston and Rings....112
  Rocker Shaft....124
  Valve Mechanism Cover....127
  Water Temperature Regulator....129
RENR7578 - Systems Operation (3044C Industrial Engine & Engines for Caterpillar Built Machines)....131
  Air Inlet and Exhaust System....132
  Basic Engine....137
  Cooling System....146
  Electrical System....148
  Fuel System ....152
  Fuel System....160
  General Information....168
  Lubrication System....176
  Naturally Aspirated Engine Views....179
RENR7578 - Testing & Adjusting (3044C Industrial Engine & Engines for Caterpillar Built Machines)....180
  Air Inlet and Exhaust System - Inspect....182
  Air in Fuel - Test....183
  Alternator - Test....186
  Battery - Test....188
  Compression - Test....189
  Connecting Rod - Inspect....192
  Connecting Rod Bearings - Inspect....195
  Cooling System - Check - Overheating....196
  Cooling System - Inspect....201
  Cooling System - Test....203
  Cylinder Block - Inspect....212
  Cylinder Head - Inspect....214
  Electric Starting System - Test....217
  Engine Crankcase Pressure (Blowby) - Test....218
  Engine Oil Cooler - Inspect....220
  Engine Oil Pressure - Test....223
  Engine Oil Pump - Inspect....225
  Engine Valve Lash - Inspect_Adjust....229
  Excessive Bearing Wear - Inspect....233
  Excessive Engine Oil Consumption - Inspect....234
  Exhaust Temperature - Test....235
  Finding Top Center Position for No. 1 Piston....236
  Flywheel - Inspect....240
  Flywheel Housing - Inspect....244
  Fuel Injection Nozzle - Test....246
  Fuel Injection Timing - Check - Distributor Pump....253
  Fuel Quality - Test....258
  Fuel System - Inspect....260
  Fuel System - Prime - Distributor Pump....261
  Gear Group - Inspect....263
  Glow Plugs - Test....267
  Increased Engine Oil Temperature - Inspect....269
  Main Bearings - Inspect....270
  Piston Height - Inspect....271
  Piston Ring Groove - Inspect....274
  Troubleshooting....277
  Turbocharger - Inspect....320
  Valve Depth - Inspect....326
  Valve Guide - Inspect....329
  Water Temperature Regulator - Test....331
RENR7582 - Disassembly & Assembly (3044C Industrial Engine & Engines for Caterpillar Built Machines)....333
  Bearing Clearance - Check....336
  Camshaft - Remove and Install....339
  Camshaft Gear - Remove and Install ....343
  Connecting Rod Bearings - Install....346
  Connecting Rod Bearings - Remove....348
  Crankcase Breather - Remove and Install....350
  Crankshaft - Install....352
  Crankshaft - Remove....357
  Crankshaft Front Seal - Install....360
  Crankshaft Front Seal - Remove....362
  Crankshaft Gear - Remove and Install....364
  Crankshaft Main Bearings - Install....367
  Crankshaft Main Bearings - Remove....373
  Crankshaft Pulley - Remove and Install....377
  Crankshaft Rear Seal - Install....380
  Crankshaft Rear Seal - Remove....382
  Crankshaft Wear Sleeve (Rear) - Install....384
  Crankshaft Wear Sleeve (Rear) - Remove....387
  Cylinder Head - Install....389
  Cylinder Head - Remove....393
  Engine Oil Bypass Valve - Remove and Install....397
  Engine Oil Cooler - Install....399
  Engine Oil Cooler - Remove....401
  Engine Oil Filter Base - Remove and Install....404
  Engine Oil Pan - Remove and Install ....407
  Engine Oil Pressure Switch - Remove and Install....411
  Engine Oil Pump - Install....414
  Engine Oil Pump - Remove....416
  Engine Oil Relief Valve - Remove and Install....418
  Exhaust Manifold - Remove and Install....421
  Flywheel - Install....424
  Flywheel - Remove....427
  Flywheel Housing - Remove and Install....430
  Front Cover - Remove and Install....433
  Fuel Injection Lines - Remove and Install - Naturally Aspirated Engines....435
  Fuel Injection Lines - Remove and Install - Turbocharged Engines....439
  Fuel Injection Nozzles - Install - Naturally Aspirated Engines....442
  Fuel Injection Nozzles - Install - Turbocharged Engines....444
  Fuel Injection Nozzles - Remove - Naturally Aspirated Engines....446
  Fuel Injection Nozzles - Remove - Turbocharged Engines....448
  Fuel Injection Pump - Install....450
  Fuel Injection Pump - Remove....453
  Glow Plugs - Remove and Install - Naturally Aspirated Engines....456
  Glow Plugs - Remove and Install - Turbocharged Engines....459
  Housing (Front) - Install....462
  Housing (Front) - Remove....464
  Idler Gear - Remove and Install....466
  Inlet Manifold - Install....470
  Inlet Manifold - Remove....472
  Inlet and Exhaust Valve Guides - Remove and Install....474
  Inlet and Exhaust Valve Seat Inserts - Remove and Install....478
  Inlet and Exhaust Valve Springs - Remove and Install....481
  Inlet and Exhaust Valves - Remove and Install....487
  Lifter Group - Remove and Install....493
  Pistons and Connecting Rods - Assemble....496
  Pistons and Connecting Rods - Disassemble....500
  Pistons and Connecting Rods - Install....502
  Pistons and Connecting Rods - Remove....505
  Rocker Shaft - Assemble....508
  Rocker Shaft - Disassemble....510
  Rocker Shaft and Pushrod - Install....512
  Rocker Shaft and Pushrod - Remove....514
  Turbocharger - Install....516
  Turbocharger - Remove....518
  Valve Mechanism Cover - Remove and Install....521
  Water Pump - Remove and Install....524
  Water Temperature Regulator Housing - Remove and Install....527
SENR3981 - Schematic (Fluid Power & Electrical Graphic Symbols)....531
  Electrical Power Graphic Symbols....532
  Fluid Power Graphic Symbols....542
SENR9823 - Disassembly and Assembly (3044C Engine for Caterpillar Built Machines)....565
  Bearing Clearance - Check....567
  Camshaft - Remove and Install....570
  Camshaft Bearings - Remove and Install....573
  Camshaft Gear - Remove and Install....575
  Connecting Rod Bearings - Install....578
  Connecting Rod Bearings - Remove....580
  Crankcase Breather - Remove and Install....582
  Crankshaft - Install....584
  Crankshaft - Remove....589
  Crankshaft Front Seal - Install....592
  Crankshaft Front Seal - Remove....594
  Crankshaft Gear - Remove and Install....596
  Crankshaft Main Bearings - Install....599
  Crankshaft Main Bearings - Remove....605
  Crankshaft Pulley - Remove and Install....609
  Crankshaft Rear Seal - Install....612
  Crankshaft Rear Seal - Remove....614
  Cylinder Head - Install....616
  Cylinder Head - Remove....620
  Engine Oil Bypass Valve - Remove and Install....624
  Engine Oil Cooler - Install....626
  Engine Oil Cooler - Remove....628
  Engine Oil Filter Base - Remove and Install....630
  Engine Oil Pan - Remove and Install....633
  Engine Oil Pump - Install....636
  Engine Oil Pump - Remove....638
  Engine Oil Relief Valve - Remove and Install....640
  Exhaust Manifold - Remove and Install....643
  Flywheel - Install....645
  Flywheel - Remove....647
  Flywheel Housing - Remove and Install....649
  Fuel Injection Lines - Remove and Install - Turbocharged Engines....652
  Fuel Injection Nozzles - Install - Turbocharged Engines....655
  Fuel Injection Nozzles - Remove - Turbocharged Engines....657
  Fuel Injection Pump - Install....659
  Fuel Injection Pump - Remove....662
  Glow Plugs - Remove and Install - Turbocharged Engines....665
  Housing (Front) - Install....668
  Housing (Front) - Remove....670
  Idler Gear - Remove and Install....672
  Inlet Manifold - Install....675
  Inlet Manifold - Remove....677
  Inlet and Exhaust Valve Guides - Remove and Install....679
  Inlet and Exhaust Valve Seat Inserts - Remove and Install....683
  Inlet and Exhaust Valve Springs - Remove and Install....686
  Inlet and Exhaust Valves - Remove and Install....692
  Lifter Group - Remove and Install....697
  Pistons and Connecting Rods - Assemble....699
  Pistons and Connecting Rods - Disassemble....703
  Pistons and Connecting Rods - Install....705
  Pistons and Connecting Rods - Remove....707
  Rocker Shaft - Assemble....710
  Rocker Shaft - Disassemble....712
  Rocker Shaft and Pushrod - Install....714
  Rocker Shaft and Pushrod - Remove....716
  Turbocharger - Install....718
  Turbocharger - Remove....720
  Valve Mechanism Cover - Remove and Install....722
  Water Pump - Remove and Install....725
  Water Temperature Regulator Housing - Remove and Install....728

EXCERPT:
4. Ensure that timing marks on teeth (4) are in the correct position.
5. Install O-ring seal (3) and cover (1). Install bolts (2) .
6. Check the fuel injection timing. Refer to Testing and Adjusting, "Fuel Injection Timing - Check - Distributor Pump".
End By: Install the fuel injection lines. Refer to Disassembly and Assembly, "Fuel Injection Lines - Remove and Install".
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Caterpillar 3044C Diesel Engines Factory Service & Shop Manual