Case CX250C CX250C LR Tier 4 Crawler Excavator Service Repair Manual – PDF Download

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Case CX250C CX250C LR Tier 4 Crawler Excavator Service Repair Manual

CASE CX250C CX250C LR TIER 4 CRAWLER EXCAVATOR SERVICE REPAIR MANUAL – PDF DOWNLOAD:

SCREENSHOOTS OF THE MANUAL:

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Case CX250C CX250C LR Tier 4 Crawler Excavator Service Repair Manual

CLEANING
Clean all metal parts except bearings, in a suitable cleaning solvent or by steam cleaning.
Do not use caustic soda for steam cleaning.
After cleaning, dry and put oil on all parts.
Clean oil passages with compressed air.
Clean bearings in a suitable cleaning solvent,
dry the bearings completely and put oil on the bearings.
INSPECTION
Check all parts when the parts are disassembled.
Replace all parts that have wear or damage.
Small scoring or grooves can be removed with a hone or crocus cloth.
Complete a visual inspection for indications of wear, pitting and the replacement of parts necessary to prevent early
failures.
BEARINGS
Check bearings for easy action.
If bearings have a loose fit or rough action replace the bearing.
Wash bearings with a suitable cleaning solvent and permit to air dry.
DO NOT DRY BEARINGS WITH COMPRESSED AIR.
NEEDLE BEARINGS
Before you press needle bearings in a bore always remove any metal protrusions in the bore or edge of the bore.
Before you press bearings into position put petroleum jelly on the inside and outside diameter of the bearings.

TABLE OF CONTENTS:

Case CX250C CX250C LR Tier 4 Crawler Excavator Service Repair Manual

1 – GENERAL INFORMATION……………………………………………. 2
Section 1001 – Safety, general information and standard torque data…. 2
Section 1002A – Specifications………………………………….. 14
Section 1002B – Main Equipment Table…………………………….. 28
Section 1002C – Main Unit Weight………………………………… 44
Section 1002D – Maintenance Standards……………………………. 52
Section 1002E – Bolt Size and Torque Table……………………….. 90
Section 1002F – Overall View……………………………………. 98
Section 1002G – New Machine Performance Judgment Table……………..106
Section 1003 – List of special tools……………………………..120
Section 1004 – Fluids and Lubricants……………………………..146
Section 1005 – Conversion Table………………………………….152
Section 1900 – Abbreviations…………………………………….158
2 – ENGINE………………………………………………………………………………………. 2
Section 2000 – Removal and Installation of Engine Assembly………………………………………… 2
Section 2001 – Removal and installation of the fuel cooler engine
inter-cooler radiator and oil cooler…. 14
Section 2004 – Removal and Installation of Turbo Charger………………………………………….. 34
Section 2005 – Removal and Installation of EGR Valve……………………………………………… 44
Section 2006 – Removal and Installation of Engine Hood……………………………………………. 52
Section 2007 – Removal and Installation of Muffler……………………………………………….. 58
Section 2401 – Primary specifications…………………………………………………………… 66
Section 2415 – Removal and Installation of Cylinder Head………………………………………….. 72
Section 2425 – Removal and Installation of Cylinder Block………………………………………….120
Section 2445 – Lubrication System……………………………………………………………….174
Section 2455 – Cooling System…………………………………………………………………..218
Section 2465 – Removal and Installation of Exhaust Manifold………………………………………..232
Section 2470 – Disassembly, Removal and Installation of DPD Assembly………………………………..244
3 – FUEL SYSTEM…………………………………………………………………………………..254
Section 3001 – Removal and Installation of Fuel Tank………………………………………………254
Section 3004A – Removal and Installation of Fuel Supply Pump……………………………………….262
Section 3004B – Removal and Installation of Common Rail Assembly……………………………………270
Section 3005 – Removal and Installation of Injector……………………………………………….282
4 – ELECTRICAL SYSTEM……………………………………. 2
Section 4001A – Electrical and Engine Basic Functions……. 2
Section 4001B – Service Support……………………….. 68
Section 4001C – Function, Structure, Operation…………..104
Section 4001E – Symptom……………………………….184
Section 4001F – Functional Inspection…………………..208
Section 4001G – Maintenance precautions…………………224
Section 4004 – Removal and Installation of Starter Motor….232
Section 4005 – Removal and Installation of Alternator…….238
Section 4008 – Preheating System……………………….244
4 – ELECTRICAL SYSTEM…………………………………. 2
Section 4020A – Electrical Equipment Layout Diagram…… 2
Section 4020B – Connection Connector Pin Layout………. 40
Section 4020C – Sequence Circuit Diagram…………….. 46
Section 4021 – Engine-side DTC List…………………. 64
Section 4022 – Main Unit-side DTC List………………. 70
Section 4023B – Introduction to the trouble diagnosis…. 76
Section 4023D – Engine Control System……………….. 92
Section 4023G – Engine-side Trouble………………….112
Section 4023H – Main Unit-side Trouble……………….186
Section 4023K – Data Reference Values………………..282
Section 4040 – Electrical Wiring Diagram……………..288
5 – UNDERCARRIAGE………………………………………………… 2
Section 5001A – Removal and Installation of Shoe Assembly…………. 2
Section 5001B – Removal and Installation of Shoe Plate……………. 10
Section 5003A – Removal and Installation of Upper Roller………….. 16
Section 5003B – Assembly and Disassembly of Upper Roller………….. 24
Section 5003C – Removal and Installation of Lower Roller………….. 36
Section 5003D – Assembly and Disassembly of Lower Roller………….. 44
Section 5004 – Removal and Installation of the Sprocket…………… 56
Section 5005A – Removal and Installation of Take-up Roller………… 64
Section 5005B – Assembly and Disassembly of Take-up Roller………… 70
Section 5005C – Removal and Installation of Grease Cylinder……….. 82
Section 5005D – Assembly and Disassembly of Tension Shock Absorber…. 88
6 – DRIVE TRAIN………………………………………………….. 98
Section 6001 – Removal and Installation of Travel Motor…………… 98
Section 6002 – Assembly and Disassembly of Travel Motor……………108
Section 6003 – Removal and Installation of Swing Unit……………..162
Section 6004 – Assembly and Disassembly of Swing Unit……………..170
8 – UPPERSTRUCTURE HYDRAULICS……………………………………………………………………. 2
Section 8001A – Overall view…………………………………………………………………. 2
Section 8001B – Port Diagram…………………………………………………………………. 16
Section 8001C – Pump P-Q Diagram……………………………………………………………… 40
Section 8001D – Pressure Measurement and Adjustment Procedures…………………………………… 46
Section 8001E – Hydraulic Pump Flow Measurement Procedures………………………………………. 72
Section 8001F – Drain Volume Measurement Procedures…………………………………………….. 80
Section 8001G – Air Bleed Procedure…………………………………………………………… 88
Section 8002 – Removal and Installation of Hydraulic Oil Tank……………………………………. 96
Section 8003 – Removal and Installation of Hydraulic Pump………………………………………..106
Section 8004 – Removal and Installation of Control Valve…………………………………………116
Section 8005A – Removal and Installation of Bucket Cylinder………………………………………126
Section 8005B – Removal and Installation of Arm Cylinder…………………………………………134
Section 8005C – Removal and Installation of Boom Cylinder………………………………………..144
Section 8006 – Removal and Installation of Center Joint………………………………………….154
Section 8007A – Removal and Installation of Travel Remote Control Valve……………………………162
Section 8007B – Removal and Installation of Operation Remote Control Valve…………………………170
Section 8007C – Removal and Installation of 5 Stack Solenoid……………………………………..184
Section 8007D – Removal and Installation of Cushion Valve………………………………………..194
Section 8008 – Procedures for Assembly and Disassembly of Hydraulic Pump Main Unit………………….202
Section 8010 – Pump Main Unit Maintenance Standards……………………………………………..212
Section 8011 – Procedures for Assembly and Disassembly of Control Valve……………………………246
Section 8012 – Procedures for Operation/Assembly and Disassembly ofHydraulic Cylinder (made by KYB)….284
Section 8013 – Procedures for Assembly and Disassembly of OperationRemote Control Valve…………….328
Section 8014 – Procedures for Assembly and Disassembly of TravelRemote Control Valve……………….344
Section 8016 – Assembly and Disassembly of Cushion Valve…………………………………………362
8 – UPPERSTRUCTURE HYDRAULICS………………………………………………………………… 2
Section 8017A – Removal and Installation of Arm HBCV………………………………………… 2
Section 8017B – Removal and Installation of Boom HBCV……………………………………….. 8
Section 8018 – Assembly and Disassembly of Center Joint……………………………………… 14
Section 8019 – Assembly and Disassembly of Swing Motor………………………………………. 26
Section 8020A – Explanation of Hydraulic Circuit and Operations (standardmodel)……………….. 48
Section 8020B – Explanation of Hydraulic Circuit and Operations (option)……………………….132
Section 8030A – Structure and Operation Explanation of Hydraulic Pump………………………….146
Section 8030B – Structure and Operation Explanation of Travel Motor……………………………166
Section 8030C – Structure and Operation Explanation of Swing Motor…………………………….186
Section 8030D – Structure and Operation Explanation of Control Valve…………………………..200
Section 8030E – 5 Stack Solenoid Valve Operation Explanation………………………………….246
Section 8030F – Structure and Operation Explanation of Upper Pilot Valve(remote control valve)…..252
Section 8030G – Structure and Operation Explanation of Travel Pilot Valve(remote control valve)….264
Section 8030H – Structure and Operation Explanation of Cushion Valve…………………………..274
9 – UPPERSTRUCTURE……………………………………………… 2
Section 9002 – Removal and Installation of Counterweight………… 2
Section 9003A – Removal and Installation of Bucket……………… 10
Section 9003B – Removal and Installation of Bucket Link…………. 16
Section 9003C – Removal and Installation of Arm………………… 24
Section 9003D – Removal and Installation of Boom……………….. 32
Section 9004 – Removal and Installation of Operator’s Seat………. 42
Section 9005A – Removal and Installation of Cab Assembly………… 48
Section 9005B – Removal and Installation of Wiper………………. 58
Section 9005C – Removal and Installation of Wiper Controller…….. 64
Section 9005D – Removal and Installation of Wiper Motor…………. 70
Section 9005E – Removal and Installation of Monitor…………….. 76
Section 9005F – Removal and Installation of Cab Front Glass……… 82
Section 9005G – Window Lock Adjustment Procedures………………. 88
Section 9005H – Tightening torque…………………………….. 94
Section 9006 – Air Conditioner Overall Diagram………………….100
Section 9007 – Assembly and Disassembly of Air Conditioner Units….142
Section 9009 – Removal and Installation of Compressor……………152
Section 9010 – Removal and Installation of Condenser…………….158
Section 9011 – Removal and Installation of Receiver Dryer………..164
Section 9015 – Work Precautions……………………………….170

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