Case 480C Backheo Loader Service Repair Manual Case 480C
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Case 480C Backheo Loader Service Repair Manual Case 480C
- Before making any repairs or adjustments on an engine, a mechanic or technician must properly diagnose the trouble.
- Locating the trouble and repairing it is only part of the job, a technician must find and eliminate the cause of the trouble as well. Too many repairs are made with no thought to removing the causes that made the repair necessary.
- For any engine to start or perform properly, three main requirements must be present:
1.FUEL
2.COMPRESSION ,
3. COMBUSTION
When any of these requirements are not present or limited by some mechanical reason, the engine will not start and will fail to operate properly throughout the power range. - FUEL. Fuel system problems can be presentanywhere from the fuel tank. through the filters and injection pump as well as the injectors. Correct injection pump timing is important in the overall fuel system performance.
- COMPRESSION. Compression on an engine is related to the “breathing function“. Proper compression is affected by the air cleaner condition. muffler restriction. valve condition and operation including proper valve adjustment, cylinder head gaskets, condition of sleeves. rings. pistons, camshaft, and camshaft timing.
- COMBUSTION. Combustion is the result of adequate compression to develop enough heat in the air charge on the compression stroke to fire the fuel being injected into the engine cylinders.Proper spray pattern and atomization of the fuel by the injector is very important. Timing the fuel injection pump to the engine to a precise degree BTDC is a vital requirement for proper combustion.
The engine diagnosis contained in the following pages covers many trouble symptoms. the causes. and what will be necessary to repair or eliminate the problem. Under each sympvtom are listed the most common and reoccuring problems progessing to the not so common problems. Locate your problem symptom in the diagnosis chart and refer to the pages listed for the probable causes and remedies.
TABLE OF CONTENTS:
Case 480C Backheo Loader Service Repair Manual Case 480C
Tabler of Contents ..................................................................................................... 2 Section 1: General Description ......................................................................................... 6 Section 2: Specifications .............................................................................................. 9 Section 3: Instruments ................................................................................................. 28 Section 4: Cooling System .............................................................................................. 30 Section 5: Electrical System ........................................................................................... 39 Section 6: Engine Air Intake System .................................................................................... 61 Section 7: Engine, Track and Equipment Controls ........................................................................ 64 Section 8: Torsion Bar and Suspension System ........................................................................... 68 Section 9: Track System .............................................................................................. 73 Section 10: Torque Converter ........................................................................................... 88 Section 11: Transmission ...............................................................................................104 Section 12: Miscellaneous Tractor Components ...........................................................................127 Section 13: Hydraulic System .........................................................................................132 Section 14: Allied Equipment ...........................................................................................186 Section 15: General Service Information ................................................................................202 Section C: Specifications For Case A267 Diesel Engine ...............................................................206 Supplement No. 1: Model 750 Industrial Crawler .........................................................................212 Section K: Servicing The Cylinder Heads, Valve Systems, Rocker Arms, Decompressor on Case Powercel Diesel Engines ....252 Section M: Servicing The Assemblies Contained In The Engine Block ......................................................270 Section M Supplement: Servicing The Front Mounted Oil Pump ............................................................316 Section I: Servicing The Fuel Injectors, Case Powercel, Fuel Injection Pump ...........................................324 Supplement No. 3 Cylinders For Models 33S and 34 Backhoes ..............................................................368 Supplement No. 2: Models 33Sand 34 Backhoes For Model 750 Crawler ......................................................398 Table of Contents for Basic Tractor ....................................................................................470 Section 1: General Description .........................................................................................474 Section 2: General Specifications .....................................................................................477 Section 3: Instruments .................................................................................................490 Section 4: Cooling System .............................................................................................492 Section 5: Electrical System ..........................................................................................500 Section 6: Engine Air Intake System ...................................................................................520 Section 7: Engine, Track and Equipment Controls .......................................................................523 Section 8: Suspension System ...........................................................................................525 Section 9: Track System .............................................................................................530 Section 10: Torque Converter System ...................................................................................543 Section 11: Transmission System ........................................................................................559 Section 12: Final Drive System .........................................................................................583 Section 13: Brake System ...............................................................................................590 Section 14: Miscellaneous Tractor Components ...........................................................................596 Section 15: Tractor Hydraulic System ...................................................................................600 Section 16: Allied Equipment ...........................................................................................625 Section 17: General Service Information ................................................................................632 Section 18: Torques and Tolerances .....................................................................................636 Section E: Suggestions .................................................................................................646 Section H: Servicing The Fuel System ...................................................................................694 Section I: Servicing The Fuel Injectors, Fuel Injection Pump, Case Powercel ............................................710 Section 4MM: Servicing The Assemblies Contained In The Engine Block ....................................................758
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