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SERVICE MANUAL

D125C

Stage IIIB

Crawler Dozer

PIN NDDC12500 and above; PIN NEDC12500 and above; PIN NFDC12500 and above

Part number 47907874

edition English

October 2015

Replaces part number 47619935

SERVICE

MANUAL

D125C

Stage IIIB

Crawler Dozer

PIN NDDC12500 and above;

PIN NEDC12500 and above;

PIN NFDC12500 and above

1/2

Part number 47907874

Содержание D125 LGP

Страница 1: ... PIN NDDC12500 and above PIN NEDC12500 and above PIN NFDC12500 and above Part number 47907874 2nd edition English October 2015 Replaces part number 47619935 SERVICE MANUAL D125C Stage IIIB Crawler Dozer PIN NDDC12500 and above PIN NEDC12500 and above PIN NFDC12500 and above 1 2 Part number 47907874 ...

Страница 2: ...T NEDC12500 D125C Long Track LT NFDC12500 D125C Wide Track WT Low Ground Pressure LGP NDDC12500 D125C Wide Track WT Low Ground Pressure LGP NEDC12500 D125C Wide Track WT Low Ground Pressure LGP NFDC12500 47907874 06 10 2015 EN Find manuals at https best manuals com ...

Страница 3: ...13F A002 D125C Long Track LT NFDC12500 Europe F4HFE613F A002 D125C Wide Track WT Low Ground Pressure LGP NDDC12500 Europe F4HFE613F A002 D125C Wide Track WT Low Ground Pressure LGP NEDC12500 Europe F4HFE613F A002 D125C Wide Track WT Low Ground Pressure LGP NFDC12500 Europe F4HFE613F A002 47907874 06 10 2015 Find manuals at https best manuals com ...

Страница 4: ... 9 Hydrostatic drive 29 29 218 Pump and motor components 29 1 Brakes and controls 33 33 110 Parking brake or parking lock 33 1 33 202 Hydraulic service brakes 33 2 Hydraulic systems 35 35 000 Hydraulic systems 35 1 35 300 Reservoir cooler and filters 35 2 35 104 Fixed displacement pump 35 3 35 105 Charge pump 35 4 35 359 Main control valve 35 5 35 741 Dozer blade cylinders 35 6 Tracks and track su...

Страница 5: ...50 Heating Ventilation and Air Conditioning HVAC control system 55 6 55 100 Harnesses and connectors 55 7 55 201 Engine starting system 55 8 55 202 Cold start aid 55 9 55 301 Alternator 55 10 55 302 Battery 55 11 55 408 Warning indicators alarms and instruments 55 12 55 512 Cab controls 55 13 55 518 Wiper and washer system 55 14 55 988 Selective Catalytic Reduction SCR electrical system 55 15 55 D...

Страница 6: ... Cab interior trim and panels 90 2 90 120 Mechanically adjusted operator seat 90 3 90 124 Pneumatically adjusted operator seat 90 4 90 100 Engine hood and panels 90 5 47907874 06 10 2015 Find manuals at https best manuals com ...

Страница 7: ...47907874 06 10 2015 Find manuals at https best manuals com ...

Страница 8: ...INTRODUCTION 47907874 06 10 2015 1 Find manuals at https best manuals com ...

Страница 9: ...al assembly 17 Torque Standard torque data for hydraulics 20 Torque Special torques 22 Maintenance chart 25 Basic instructions Moving a disabled machine 27 Hydraulic contamination 36 Consumables Loctite Product Chart 37 Conversion factors 43 General specification 45 Capacities 49 General specification 50 Product identification 51 Product identification Machine orientation 53 See content for specif...

Страница 10: ...nents not approved by the manu facturer including those used for the servicing or repair of the product manufactured or marketed by the manufacturer In any case no warranty is given or attributed on the product manufactured or marketed by the manufacturer in case of damages caused by parts and or components not approved by the manufacturer The manufacturer reserves the right to make improvements i...

Страница 11: ...n death or serious injury CAUTION indicates a hazardous situation that if not avoided could result in minor or moderate injury FAILURE TO FOLLOW DANGER WARNING AND CAUTION MESSAGES COULD RESULT IN DEATH OR SERIOUS INJURY Machine safety NOTICE Notice indicates a situation that if not avoided could result in machine or property damage Throughout this manual you will find the signal word Notice follo...

Страница 12: ... coolant mixtures to get into the soil Collect and dispose of coolant mixtures properly The air conditioning system contains gases that should not be released into the atmosphere Consult an air condi tioning specialist or use a special extractor to recharge the system properly Repair any leaks or defects in the engine cooling system or hydraulic system immediately Do not increase the pressure in a...

Страница 13: ...esignated area on the tag The tag should only be removed by the person who signed and attached the tag after validating the repairs or services have been completed A D E B F C 87358697 1 Tag Components A DO NOT REMOVE THIS TAG Warning The tag should only be removed by the person who signed and at tached the tag after validating the repairs or services have been completed B See Other Side Reference...

Страница 14: ... items can become entangled in moving parts Wear protective equipment when appropriate DO NOT attempt to remove material from any part of the machine while it is being operated or components are in motion Make sure all guards and shields are in good condition and properly installed before operating the machine Never operate the machine with shields removed Always close access doors or panels befor...

Страница 15: ...d pets before you start operating the machine Unsupported hydraulic cylinders can lose pressure and drop the equipment causing a crushing hazard Do not leave equipment in a raised position while parked or during service unless securely supported Jack or lift the machine only at jack or lift points indicated in this manual Incorrect towing procedures can cause accidents When towing a disabled machi...

Страница 16: ...ocked together for road travel Use safety chains for trailed equipment when provided with machine or equipment Lift implements and attachments high enough above ground to prevent accidental contact with road When transporting equipment or machine on a transport trailer make sure it is properly secured Be sure the SMV on the equipment or machine is covered while being transported on a trailer Be aw...

Страница 17: ...rocedure shown in the oper ator s manual Do not short across terminals Follow manufacturer s instructions when storing and handling batteries Battery post terminals and related accessories contain lead and lead compounds Wash hands after handling This is a California Proposition 65 warning Battery acid causes burns Batteries contain sulfuric acid Avoid contact with skin eyes or clothing Antidote e...

Страница 18: ...Seat belt inspection and maintenance Keep seat belts in good condition Keep sharp edges and items that can cause damage away from the belts Periodically check belts buckles retractors tethers slack take up system and mounting bolts for damage and wear Replace all parts that have damage or wear Replace belts that have cuts that can make the belt weak Check that bolts are tight on the seat bracket o...

Страница 19: ... servicing the machine Dispose of all fluids filters and containers in an environmentally safe manner according to local laws and regulations Check with local environmental and recycling centers or your dealer for correct disposal information Store fluids and filters in accordance with local laws and regulations Use only appropriate containers for the storage of chemicals or petrochemical substanc...

Страница 20: ... other controls or accessories as handholds when entering or exiting the cab or operator s platform Working at heights When the normal use and maintenance of the machine requires working at heights Correctly use installed steps ladders and railings Never use ladders steps or railings while the machine is moving Do not stand on surfaces which are not designated as steps or platforms Do not use the ...

Страница 21: ...mp ditch or rough ground Use caution when operating the machine on slopes Raised equipment full tanks and other loads can change the center of gravity of the machine The machine can tip or roll over when near ditches and embankments or uneven surfaces Do not operate the unit near or on the soft shoulders of canals brooks other waterways or banks which are under mined by rodents The unit may sink s...

Страница 22: ... tool Do not tap the seal with a hammer or mallet 6 While you insert the seal check that the seal is perpendicular to the seat When the seal settles make sure that the seal makes contact with the thrust element if required 7 To prevent damage to the seal lip on the shaft position a protective guard during installation operations O ring seals Lubricate the O ring seals before you insert them in the...

Страница 23: ...d cable from the machine battery The electronic monitoring system and charging system will be damaged if this is not done 5 Remove the battery ground cable Reconnect the cable when you complete welding WARNING Battery acid causes burns Batteries contain sulfuric acid Avoid contact with skin eyes or clothing Antidote external Flush with water Antidote eyes flush with water for 15 minutes and seek m...

Страница 24: ...88 348 lb in 3 8 in 61 73 Nm 540 648 lb in 7 16 in 95 114 Nm 70 84 lb ft 1 2 in 149 179 Nm 110 132 lb ft 9 16 in 217 260 Nm 160 192 lb ft 5 8 in 298 358 Nm 220 264 lb ft 3 4 in 515 618 Nm 380 456 lb ft 7 8 in 814 976 Nm 600 720 lb ft 1 in 1220 1465 Nm 900 1080 lb ft 1 1 8 in 1736 1953 Nm 1280 1440 lb ft 1 1 4 in 2468 2712 Nm 1820 2000 lb ft 1 3 8 in 3227 3688 Nm 2380 2720 lb ft 1 1 2 in 4285 4827 ...

Страница 25: ... in 7 8 14 in 34 79 Nm 300 696 lb in 19 0 mm 3 4 in 1 1 16 12 in 54 108 Nm 40 80 lb ft 22 2 mm 7 8 in 1 3 16 12 in 81 135 Nm 60 100 lb ft 25 4 mm 1 in 1 5 16 12 in 102 158 Nm 75 117 lb ft 31 8 mm 1 1 4 in 1 5 8 12 in 169 223 Nm 125 165 lb ft 38 1 mm 1 1 2 in 1 7 8 12 in 285 338 Nm 210 250 lb ft Straight threads with O ring Tube outside diameter Hose inside diameter mm inch Thread size Nm lb in lb ...

Страница 26: ...6 in 43 54 Nm 384 480 lb in 3 4 16 in 61 68 Nm 540 600 lb in 10 15 9 mm 5 8 in 1 14 in 62 76 Nm 552 672 lb in 7 8 14 in 81 88 Nm 60 65 lb ft 12 19 0 mm 3 4 in 1 3 16 12 in 90 110 Nm 65 80 lb ft 1 1 16 12 in 115 122 Nm 85 90 lb ft 14 22 2 mm 7 8 in 1 3 16 12 in 90 110 Nm 65 80 lb ft 1 13 16 12 in 129 136 Nm 95 100 lb ft 16 25 41 mm 1 0 in 1 7 16 12 in 125 140 Nm 92 105 lb ft 1 5 16 12 in 156 169 Nm...

Страница 27: ...N m 10 15 lb ft 6 9 5 mm 3 8 in 9 16 18 29 33 N m 21 24 lb ft 20 27 N m 15 20 lb ft 8 12 7 mm 1 2 in 3 4 16 47 54 N m 35 40 lb ft 34 41 N m 25 30 lb ft 10 15 9 mm 5 8 in 7 8 14 72 79 N m 53 58 lb ft 47 54 N m 35 40 lb ft 12 19 1 mm 3 4 in 1 1 16 12 104 111 N m 77 82 lb ft 81 95 N m 60 70 lb ft 14 22 2 mm 7 8 in 1 3 16 12 122 136 N m 90 100 lb ft 95 109 N m 70 80 lb ft 16 25 4 mm 1 in 1 5 16 12 149...

Страница 28: ...ngs When installing ORFS fittings thoroughly clean both flat surfaces of the fittings 1 and lubricate the O ring 2 with light oil Make sure both surfaces are aligned properly Torque the fitting to specified torque listed throughout the repair manual NOTICE If the fitting surfaces are not properly cleaned the O ring will not seal properly If the fitting surfaces are not properly aligned the fitting...

Страница 29: ...put studs 5 4 Nm 48 lb in Input studs 16 3 Nm 144 lb in Engine Mounts Component Torque Engine mount bolts to chassis 205 230 Nm 151 170 lb ft Rear engine mount brackets to bell housing 118 133 Nm 87 98 lb ft Front engine mount bracket to engine block 118 133 Nm 87 98 lb ft Starter mounting bolts 68 77 Nm 50 57 lb ft Engine to Pumps Drive Shaft Component Torque Flywheel mount bolts 285 305 Nm 210 2...

Страница 30: ...r Plate Mounting Bolts 125 150 N m 92 111 lb ft Planetary Carrier to Drive Hub 310 380 N m 229 280 lb ft Final Drive to Frame Mounting Bolts 656 725 N m 484 535 lb ft Fill Check Plug 24 30 N m 18 22 lb ft Drain Plug 24 30 N m 18 22 lb ft Cab Mounting Component Torque Support mount bolts 733 854 N m 541 630 lb ft Brush guard mount bolts if equipped 587 794 N m 433 586 lb ft Air Conditioning Compres...

Страница 31: ...erminal nut 17 7 24 5 Nm 13 18 lb ft Solenoid screw 2 6 4 5 Nm 23 40 lb in Multifunction valve Component Torque Brake valve 3 4 N m 2 3 lb ft Brake valve screws 3 4 N m 2 3 lb ft Cartridge valve 32 6 35 4 N m 24 0 26 1 lb ft Check valve 150 177 N m 111 131 lb ft 47907874 06 10 2015 24 ...

Страница 32: ...EF supply filter Initial x Track tension Initial x Final drive oil initial x Final drive oil sample x Every 500 hours Change engine oil and filter x Change engine oil and filter x Fuel filters x Battery electrolyte level x Final drive oil sample x Every 1000 hours Fuel tank cap x Fuel tank sediment x Hydraulic reservoir breather x Final drive oil x Final drive oil sample x Drive shaft slip spline ...

Страница 33: ...ter Recirculation filter x Selective Catalytic Reduction SCR system Replace supply module filter x Selective Catalytic Reduction System SCR tank filter x Engine air filters x Doors and windows x Ripper shanks and teeth x Battery service x Auxiliary battery connections x Battery removal and installation x Work lights x ELECTRICAL SYSTEM Fuses and relays x 47907874 06 10 2015 26 ...

Страница 34: ...creases with increasing speed as the weight of the towed load increases especially on hills and slopes Failure to comply could result in death or serious injury W1138A Electronic override 1 Use the multi function display screen to select the tow ing mode From the main menu scroll down and se lect Service Press the enter switch RAIL15DOZ0018AA 1 2 Scroll down and highlight the Tow Mode selection Pr...

Страница 35: ...ON 3 Change the Tow Mode from Disabled to Enabled by highlighting and pressing the enter switch RAIL12DOZ0592AA 3 RAIL12DOZ0823AA 4 4 Continue to follow the screen prompts RAIL12DOZ0824AA 5 47907874 06 10 2015 28 ...

Страница 36: ...DOZ0825AA 6 6 Press the enter switch to continue to the next screen NOTICE Do not tow the machine over 1 2 km h 0 7 mph RAIL12DOZ0826AA 7 7 Press the enter switch to continue to the next screen NOTICE Tow the machine the shortest possible distance RAIL12DOZ0827AA 8 47907874 06 10 2015 29 ...

Страница 37: ...drostatic pump 9 Access the upper pressure relief valve by removing the floor mat 1 cab floor access panel and tilting the operator seat back The valves are located on the hydrostatic pumps beneath the cab floor RAIL12DOZ0232AA 10 10 Open pressure relief valves to bypass the hydrostatic pumps two right side valves 1 and two left side valves 2 The pumps are tandem mounted and the valves can be foun...

Страница 38: ...s on each relief valve RCIL10CWL116AAL 13 Releasing the brakes NOTE This machine is equipped with a spring applied hydraulically released parking brakes Hydraulic pressure must release the brakes You MUST use a hand pump to release the brakes when the engine is not running 13 Remove the hydraulic reservoir breather Connect a vacuum pump at the hydraulic reservoir breather and hold a vacuum to keep...

Страница 39: ...H12DOZ0094AA 15 15 Connect a hand pump with the capacity to reach and maintain 22 7 bar 330 psi 16 Operate the pump until the correct pressure is reached and the brakes are released 17 Check and maintain 22 7 bar 330 psi minimum in the brake line when moving the machine Damage to the brake system can result if the pressure is re duced 18 Tow the machine the shortest possible distance Do not tow th...

Страница 40: ...es 2 Remove the plugs and reconnect the lines 1 to the brake solenoid RAPH12DOZ0094AA 16 3 Remove the vacuum pump and install the hydraulic reservoir breather RAIL12DOZ0372AA 17 4 Turn the engagement screws clockwise two turns on each relief valve RCIL10CWL116AAL 18 47907874 06 10 2015 33 ...

Страница 41: ...nstall the floor access panel RAIL12DOZ0644AA 19 7 On the multi function display screen select Service and press the enter switch RAIL15DOZ0018AA 20 8 Scroll down and highlight the Tow Mode selection and press the enter switch RAIL15DOZ0032AA 21 47907874 06 10 2015 34 ...

Страница 42: ...INTRODUCTION 9 Change the Tow Mode from Enabled to Disabled by highlighting and pressing the enter switch RAIL12DOZ0592AA 22 47907874 06 10 2015 35 ...

Страница 43: ...rts wear rapidly F Relief valves or check valves held open by dirt G Quick failure of components that have been repaired H Cycle times are slow machine does not have enough power If your machine has any of these problems check the hydraulic oil for contamination There are two types of contam ination microscopic and visible Microscopic contamination occurs when very fine particles of foreign materi...

Страница 44: ...el The gel consistency prevents adhesive flow even on vertical surfaces 426 Black 4 8 20 7 MPa 696 3003 psi 10 sec 40 sec none Is an adhesive gel toughened with elastomers for impact and peel strength along with improved resistance to heat and humidity 454 Clear to slightly cloudy 19 28 MPa 2756 4061 psi 1 min 72 hrs none Is particularly suited for bonding porous or absorbent materials such as woo...

Страница 45: ...de retaining roller bearings or oil impregnated bushings into housings 609 Green 10 3 15 8 MPa 1494 2292 psi 25 min 6 hrs 7471 or 7469 Is designed for the bonding of cylindrical fitting parts The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration Typical applications include rotor to shafts in fractiona...

Страница 46: ...product possesses excellent gap cure characteristics Typical applications include restoring correct fits on worn shafts spun bearings and damaged keyways 680 Green 19 3 24 1 MPa 2799 3496 psi 20 min 1 1 hrs 7471 or 7469 Is designed for the bonding of cylindrical fitting parts particularly where low viscosity is required The product cures when confined in the absence of air between close fitting me...

Страница 47: ... MPa 870 2031 psi 30 min 18 hrs 7471 or 7469 It seals close fitting joints between rigid metal faces and flanges and will flex with minor flange movements Provides resistance to low pressures immediately after assembly of flanges Typically used as a form in place gasket for pumps thermostats compressors transmission housings and axle covers 518 Red 7 5 8 5 MPa 1088 1233 psi 30 min 8 hrs 7471 or 74...

Страница 48: ...embly 222 Purple 4 14 Nm 35 124 lb in 20 min 3 hrs 7471 or 7469 Is designed for the locking and sealing of threaded fasteners which require easy disassembly with standard hand tools 242 Blue 5 6 17 Nm 50 150 lb in 3 min 6 hrs 7471 or 7469 Is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools 243 Blue 7 24 Nm 62 212 lb in 10 min 1 hr...

Страница 49: ...ty and capillary action the product wicks between engaged threads and eliminates the need to disassemble prior to application 425 Dark blue 0 23 8 5 Nm 2 75 lb in 2 min 24 hrs 7113 Is designed as a fast curing low strength adhesive for locking metal and plastics fasteners The product is designed for pre or post application LOCTITE 425 cures quickly on plated metal and plastics fasteners fixturing ...

Страница 50: ... 35 314 66 1 307 950 0 033 814 1 056 814 0 879 877 0 264 172 0 219 969 cubic inch cubic foot cubic yd ounce US fluid quart US liquid quart Imperial gallon US liquid gallon Imperial VOLUME TIME litre min litre min 0 264 172 0 219 969 gallon min US liquid gallon min Imperial U S to Metric MULTIPLY BY TO OBTAIN AREA square foot acre 0 092 903 0 404 686 square meter hectare FORCE ounce force pound for...

Страница 51: ...This as a preview PDF file from best manuals com Download full PDF manual at best manuals com ...

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