Case 621C, Service Manual

Page 1: ...shooting Batteries StarterandStarterSolenoid 621C StarterandStarterSolenoid 721C Information andDiagnostic Center Alternator Steering SectionIndex Steering Removal andInstallation ofSteeringComponents SteeringSpecifications Pressure Checks andTroubleshooting SteeringControlValve SteeringPriorityValve SteeringCylinders CenterPivot CASE CORPORATION 700 State Street Racine WI 53404 U S A Bur 12113 Se...

Page 2: ...rakeand brakepedal adjustments see Section9001 Hydraulics Removal andInstallation of Hydraulic Components Cleaning theHydraulic System LoaderControlValve CouplerLockValve Combination Valve Solenoid ValveandAccumulator Valvefor RideControl Bur 12113 SectionNo FormNo 7 12362 6003 7 12401 6004 6 41400 6005 7 12430 6007 7 12450 Tab7 7001 7 12480 7004 7 12510 7007 7 12530 Tab8 8001 7 12571 8003 7 49640...

Page 3: ...C Hydraulic Schematic Foldout andElectrical Schematic Foldout SectionNo Tab9 9001 9003 9005 9007 In RearPocket NOTE Case Corporation reserves the right to make improvements in design or changes in specifications at any time without incurring any obligation to install them on units previously sold Bur 12113 lsssued 12 01 FormNo 7 12670 7 14160 7 14180 7 12690 7 12721 Printed in U S A Find manuals a...

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Page 5: ... 1001 FluidsandLubricants 1002 LoctiteProduct Chart CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 3350 SOUTHSERVICEROAD BURLINGTON ON L7N3M6 CANADA Bur 7 12120 1999 Case Corporation Printed in U S A April 1999 Find manuals at https best manuals com ...

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Page 7: ...S CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 3350 South Service Road Burlington ON L7N 3M6 CANADA RacS 71601 1994 Case Corporation Printed in U S A Issued November 1991 Find manuals at https best manuals com ...

Page 8: ...the torques in this chart when special torques are not given These torques apply to fasteners with both UNC and UNF threads as received from suppliers dry or when lubricated with engine oil Not applicable if special graphities Molydisulfide greases or other extreme pressure lubricants are used Grade 5 Bolts Nuts andStuds Rae8 71601 Grade 8 Bolts Nuts andStuds 0 Issued11 91 Retyped November Printed...

Page 9: ...ated or when lubricated with engine oil These values do not apply if graphite or Molydisulfide grease or oil is used Grade 8 8Bolts Nuts andStuds Rae8 71601 Grade 10 9Bolts Nuts andStuds Grade 12 9 Bolts Nuts and Studs Usually the torque values specified for grade 10 9 fasteners can be used satisfactorily on grade 12 9 fasteners Issued11 91 Printed in U S A Find manuals at https best manuals com ...

Page 10: ...lareFitting Newton metres SplitFlange Mounting Bolts Rae8 71601 TubeOD HoseID 1 2inch 12 7mm TubeOD HoseID Thread Size Pound Inches Newton metres Straight Threads withO ring 3 4 16 Thread Size 540to 804 57to91 Pound Newton Inches metres Issued11 91 Printed in U S A Find manuals at https best manuals com ...

Page 11: ...tres Thread Size Pound Inches Newton metres O ring Face SealEnd O ring Boss End Fitting orLock Nut NOTE Case Corporation reserves the right to make improvements in design or changes in specifications at any time without incurring any obligation to install them on units previously sold 1001 5 Issued11 91 Printedin U S A ...

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Page 13: ...02 FLUIDS AND LUBRICANTS CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 450 Sherman Avenue Hamilton ON L8N 4C4 CANADA Bur 7 12131 2000 Case Corporation Printed in U S A April 2000 ...

Page 14: ...pe of oil MS 1209 Hy Tran Ultra Transmission Refill capacity with filter change 621C 7 4 litres 8 U S quarts 721C 12 3 litres 3 25 U S gallons Total system capacity 621C 18 9 litres 20 0 U S quarts 721C 22 7 litres 24 0 U S quarts Type of oil Case No 1 Engine Oil 15W 40 Axles Capacity of center bowl 621C Front and rear each 8 5 litres 9 quarts 135H EP Plus 0 9 litres 2 pints B91246 721C Front 13 7...

Page 15: ...e chart below for recommended viscosity at ambient air temperature ranges NOTE Do not put performance additives or other oil additive products in the engine crankcase The oil change intervals given in this manual are according to tests with Case lubricants Bur 7 12131 40 Oil Viscosity Temperature Ranges Temperature Fahrenheit 20 20 40 60 80 100 30 30 50 70 90 Temperature Celsius 120 110 NOTE Use o...

Page 16: ...a period of time you can get foreign material or water in the fuel storage tank Many engine problems are caused by water in the fuel Keep the fuel storage tank outside and keep the fuel as cool as possible Remove water from the storage container at regular periods of time Fill the fuel tank at the end of the daily operating period to prevent condensation in the fuel tank Specifications for Accepta...

Page 17: ...26 LUBRICATE THE FRONT DRIVE SHAFT SUPPPORT BEARING 1 FITTING CASE MOLYDISULFIDE GREASE 32 LUBRICATE THE REAR DRIVE SHAFT SLIP JOINT 1 FITTING CASE MOLYDISULFIDE GREASE 8 LUBRICATE THE LOADER LIFT ARM AND CYLINDER PIVOTS 14 FITTINGS 621C 721C XT CASE MOLYDISULFIDE GREASE r VERY 250 HOURS OF OPERATION 19 CHECK THE RADIATOR COOLANT LEVEL ETHYLENE GLYCOL AND WATER 2 CHANGE THE ENGINE OIL AND REPLACE ...

Page 18: ...Analysis System See your Operators manual for maintenance of safety related items and for detailed information of the service items on this chart Operators and service manuals are available for this machine from your Case dealer Bur 7 12131 NOTE The Case Company reserves the right to make improvements in design or changes in specifications at any time without incurring any obligation to install th...

Page 19: ... Engine andRadiator Removal andInstallation 721C 2000 Stall Test 2002 ForEngineRepair SeetheEngine ServiceManual CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 3350 SOUTHSERVICEROAD BURLINGTON ON L7N3M6 CANADA Bur 7 12140 1999 Case Corporation Printed in U S A April 1999 ...

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Page 21: ...TOR REMOVAL AND INSTALLATION 621C CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 3350 SOUTH SERVICE ROAD BURLINGTON ON L7N 3M6 CANADA Bur 7 12150 1999 Case Corporation Printed in U S A January 1999 ...

Page 22: ...e flex plates to the flywheel 43 to 49 Nm 384 to 432 pound inches Cap screws that fasten the transmission to the flywheel housing 47 to 51 Nm 420 to 504 pound inches Cap screws that fasten the fan to the pulley 57 Nm 504 pound inches Belt tension for the air conditioner compressor New belt 45 kg 100 pounds Used belt 41 kg 90 pounds Cooling system capacity 26 5 litres 28 U S quarts Bur 7 12150 SPEC...

Page 23: ...nnect the tube from the valve assembly Bur 7 12150 17 Cut the tie strap that fastens the hoses and wire harness 18 Loosen and remove the nuts and lock washers that fasten the clamps for the wire harness and hose to the left side of the radiator shroud 19 Disconnect the hose from the bottom of the coolant reservoir and drain the coolant reservoir 20 Loosen and remove the hardware that fastens the r...

Page 24: ...tor 44 Disconnect the hose from the air cleaner 45 Loosen and remove the nuts and bolts that fasten the straps for the air cleaner Bur 7 12150 46 Remove the air cleaner from the bracket 47 Loosen and remove the cap screw that fastens the clamp for the wire harness 48 Disconnect the heater hose Install a plug in the hose 49 Loosen and remove the cap screw lock washer and external tooth washer that ...

Page 25: ...t side of the flywheel housing 5 Bur 7 12150 2000 5 73 Connect acceptable lifting equipment to the engine 74 Loosen the bottom cap screw and loosen and remove the top cap screw that fastens the cover to the flywheel housing 5 75 Remove the plastic plug from the flywheel housing 5 76 There are four 10 mm Allen head screws that fasten the flex plates to the flywheel Only one Allen head screw at a ti...

Page 26: ...2000 6 4 GS98K001 1 THROTTLE CABLE 5 FLYWHEEL HOUSING 2 REAR ENGINE MOUNT 6 MOUNTING BOLT 3 ENGINE WELDMENT MOUNT 7 WASHER 4 ENGINE 8 NUT Figure 1 ENGINE Bur 7 12150 Issued 1 99 Printed in U S A ...

Page 27: ...12 Start the vacuum pump Bur 7 12150 2000 7 13 Connect the brake pump inlet and outlet lines 14 Stop the vacuum pump 15 Remove the vacuum pump from the hydraulic reservoir Replace the cap on the reservoir 16 Install the cap screws and lock washers that fasten the clamps for the wire harness and the bracket for the heater hose to the flywheel housing Install the remaining cap screws and lock washer...

Page 28: ...eater hose to the engine 42 Install the small wire on the alternator Install the lock washer and nut Tighten the nut 43 Install the wire to the battery terminal on the alternator Install the lock washer and nut Tighten the nut Bur 7 12150 44 Install the external tooth washer the ground cable the lock washer and the cap screw Tighten the cap screw 45 Remove the plug from the heater hose and connect...

Page 29: ...rvoir 72 Install the lock washer and nut that fasten the clamp for the wire harness to the top left side of the radiator shroud Tighten the nut Bur 7 12150 2000 9 73 Install the lock washer and nut that fasten the clamps for the hose and the clamp for the wire harness to the left side of the radiator shroud 74 Install a new tie strap on the hoses and wire harness 75 If equipped with ether injectio...

Page 30: ...hood 89 Install the cap screws lock washers and flat washers that fasten the hood Tighten the cap screws Install the plugs in the hood Bur 7 12150 90 Install the precleaner If the air cleaner is equipped with a cap install the cap and tighten the clamp 91 Close the grille 92 Close the access door on each side of the engine compartment 93 Remove the floor jack from under the transmission Issued 1 9...

Page 31: ...move the cap screws lock washers and flat washers that fasten the clamps for the hose and the guard 6 to the fan shroud 5 Bur 7 12150 14 Remove the guard 6 15 Disconnect the bottom radiator hose 7 from the water pump 16 Loosen and remove the cap screws lock washers and flat washers that fasten the fan shroud 5 to the radiator 3 Put the fan shroud 5 over the fan 17 Loosen and remove the cap screws ...

Page 32: ...p Bur 7 12150 13 Install the guard 6 14 Install the cap screws lock washers and flat washers that fasten the clamps for the hose and the guard 6 to the fan shroud 5 Tighten the cap screws 15 Install the bracket for the battery disconnect switch to the radiator shroud Install the flat washers lock washers and nuts Tighten the nuts 16 Connect the positive cable to the batteries 17 Connect the ground...

Page 33: ...2000 13 4 GS98K002 1 GRILLE 4 UPPER RADIATOR HOSE 7 BOTTOM RADIATOR HOSE 2 RADIATOR SUPPORT 5 FAN SHROUD 3 RADIATOR 6 GUARD Figure2 RADIATOR Bur 7 12150 Issued 1 99 Printed in U S A ...

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Page 35: ...TOR REMOVAL AND INSTALLATION CASE CORPORATION 700 State Street Racine WI 53404 U S A CASE CANADA CORPORATION 3350 SOUTH SERVICE ROAD BURLINGTON ON L7N 3M6 CANADA 721C Bur 7 12160 1999 Case Corporation Printed in U S A January 1999 ...

Page 36: ...ches Allen head screws that fasten the flex plates to the flywheel 43 to 49 Nm 384 to 432 pound inches Cap screws that fasten the transmission to the flywheel housing 47 to 57 Nm 420 to 504 pound inches Clamp that fastens the hose for the air cleaner to the turbocharger 5 65 Nm 50 pound inches Belt tension for the air conditioner compressor New belt tension 45 kg 100 pounds Used belt tension 41 kg...

Page 37: ...m the fitting Install a plug in the hose Bur 7 12160 16 Disconnect the wire from the temperature sender NOTE Fasten identification tags to the cables for the starter solenoid 17 Disconnect the cables from the battery terminal of the starter solenoid 18 Disconnect the cables from the switch terminal of the starter solenoid 19 Disconnect the cable from the ground terminal of the starter 20 If the ma...

Page 38: ...re harness to the top right side of the flywheel housing Loosen and remove the cap screw and lock washer that fasten the clamp for the hose to the bottom right side of the flywheel housing 5 refer to Figure 2 Bur 7 12160 41 Loosen the bottom cap screw and loosen and remove the top cap screw that fastens the cover to the flywheel housing 5 42 Remove the plastic plug from the flywheel housing 5 43 T...

Page 39: ...2000 5 GS98K004 1 THROTTLE CABLE 5 FLYWHEEL HOUSING 2 REAR ENGINE MOUNT 6 BOLT 3 ENGINE WELDMENT MOUNT 7 WASHER 4 ENGINE 8 NUT Figure 1 ENGINE Bur 7 12160 Issued 1 99 Printed in U S A ...

Page 40: ... and remove the engine from the machine Installation 1 Make sure the torque converter is installed on the transmission Three splined shafts must be engaged for the torque converter to be installed correctly 2 Install a stud 70 mm 2 3 4 inches long with 10 mm threads in one of the holes in the flex plates so the stud is to the left side Make sure the flex plates are not bent or damaged 3 Carry the ...

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