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Case 750 Service Manual Download Page 2

DIVISION/SECTION 

SECTION N

 

REFERENCE N



8 

HYDRAULICS 

Removal and installation of hydraulic components ..........................................8001 

7-21500GB 

 

Hydraulic specifications, troubleshooting and pressure checks .......................8002 
Cleaning the hydraulic system .........................................................................8003 
Hydraulic pump and unloader valve .................................................................8004 
Loader control valve.........................................................................................8005 
Cylinders ..........................................................................................................8006 
Backhoe control valve ......................................................................................8007 
Extending dipperstick control valve ..................................................................8008 
Priority demand valve ......................................................................................8010 

7-21510GB 

7-21520GB 
7-21530GB 
7-21540GB 
7-21620GB 
7-21550GB 
7-21560GB 
7-21570GB 

9 

MOUNTED/EQUIPMENT 

Pedals and levers .............................................................................................9001 

7-21630GB 

 

Loader ..............................................................................................................9006 
Cab and Rops ..................................................................................................9007 
Backhoe ...........................................................................................................9008 
Seat and seat belt ............................................................................................9009 
Removal and installation of components .........................................................9011 

7-21650GB 
7-21660GB 
7-21670GB 
7-21680GB 

7-21690GB 

















Cre 7-21271GB 

Issued 10-99 

Summary of Contents for 750

Page 1: ...1380GB Steering specifications pressure checks and troubleshooting Models 960 965 5001 7 21900GB Steering control valve 5002 7 21390GB Steering cylinder 5003 7 21400GB Front axle two wheel drive machine two wheel steer machine Model 750 5005 7 21880GB Front axle four wheel drive machine two wheel steer machine Models 750 760 860 5006 7 21410GB Front axle four wheel drive machine four wheel steer m...

Page 2: ...004 Loadercontrolvalve 8005 Cylinders 8006 Backhoecontrolvalve 8007 Extending dipperstick control valve 8008 Prioritydemand valve 8010 7 21510GB 7 21520GB 7 21530GB 7 21540GB 7 21620GB 7 21550GB 7 21560GB 7 21570GB 9 MOUNTED EQUIPMENT Pedals and levers 9001 7 21630GB Loader 9006 CabandRops 9007 Backhoe 9008 Seat and seat belt 9009 Removal and installation of components 9011 7 21650GB 7 21660GB 7 2...

Page 3: ...Section 1001 STANDARD TORQUE SPECIFICATIONS AND LOCTITE PRODUCT CHART Case Cre 7 79451GB Copyright 1999 Case France Printed in U K Issued June 1999 1001 ...

Page 4: ...Section 1002 FLUIDS AND LUBRICANTS Case Cre 7 21280GB Copyright 1999 Case France Printed in U K Issued June 1999 1002 ...

Page 5: ...Total hydraulic system capacity model 965 90 litres Hydraulic reservoir filling capacity with filter replacement 45 litres Hydraulic reservoir filling capacity without filter replacement 43 litres Type of fluid refer to Fluids and lubricants Transmission 2 Wheel drive Total system 19 litres Filling with or without filter replacement 15 litres Type of oil API cd se grade 10W30 4 Wheel drive Total s...

Page 6: ...eel steer Axle centre housing 8 litres Axle hubs each 4 5 litres Type of oil HI LOAD GEAR OIL 2 Wheel steer Capicity 22 5 litres Type of oil HI LOAD GEAR OIL Brake fluid reservoir LHM brake fluid Cre 7 21280GB Issued 06 99 ...

Page 7: ...e or other additive in the sump Oil change intervals shown in this manual are based on tests carried out on lubri cants Oil viscosity Oil operating range Temperate climates 5 C to 40 C Oil type SAE 30 Hot climates 60 C and Oil type SAE 40 Cold climates 30 C to 10 C Oil type SAE 10W30 A B IO36LO A FAHRENHEIT TEMPERATURE B CENTIGRADE TEMPERATURE Cre 7 21280GB Issued 06 99 ...

Page 8: ...isk of freezing For environments with a temperature higher than 36 C use a mixture of 50 ethylene glycol based anti freeze For environments with a temperature lower than 36 C a mixture of 40 water with 60 anti freeze is rec ommended Fuel The fuel to be used must be in conformity with the D975 standard of the American Society for Testing and Materials ASTM Use No 2 type fuel The use of other fuels ...

Page 9: ...lt a local recycling or environmental centre to obtain information on the correct method of disposing of these materials PLASTIC AND RESIN PARTS When cleaning plastic windows the console the instrument panel the gauges etc avoid the use of petrol paraf fin paint solvents etc Use only water soap and a soft cloth The use of petrol paraffin paint solvents etc will cause discoloration cracks or deform...

Page 10: ...Section 2000 ENGINE AND RADIATOR REMOVAL AND INSTALLATION Case Cre 7 21290GB Copyright 1999 Case France Printed in France October 1999 2000 ...

Page 11: ...diator cap NOTE During installation fill the radiator and cool ant reservoir completely See Section 1002 for cool ant specifications Start and run the engine until the coolant is at operating temperature Stop the engine and check for leakage When the coolant is cold check the coolant reservoir level Add coolant as required Never remove the radiator cap to check the coolant level in the radiator ST...

Page 12: ...Loosen the clamp and disconnect the upper radiator hose 2 CI98G517 Position a suitable drainage container beneath the hydraulic hose 5 and disconnect the hose from the oil cooler 9 NOTE Fit blanks to the hose and the oil cooler con nection STEP 18 Repeat step 5 for the remaining hydraulic hoses 6 7 and 8 STEP 19 Remove the for radiator retaining screw STEP 20 Install a suitable sling around the ra...

Page 13: ...27 23 13 11 10 14 15 5 25 16 24 26 22 21 20 1 Hose 15 Washer 2 Collar 16 Nut 3 Hose 17 Bracket 4 Collar 18 Bracket 5 Seal 19 Collar 6 Shroud 20 Nut 7 Radiator 21 Hose 8 Cap filler 22 Clamp 9 Cooler oil 23 Tank expansion 10 Bracket 24 Bracket 11 Nut 25 Screw 12 Screw 26 Washer 13 Washer 27 Plug 14 Stanchion 28 Grommet ...

Page 14: ... hose clip 4 from the air filter hose 5 at the turbocharger inlet STEP 4 Support the air filter assembly 1 and remove the three bolts 2 from the cylinder head and two bolts 3 from the exhaust bracket Remove the air filter assembly STEP 5 6 6 2 789M257A 789M256A Install the engine lifting bracket 6 using two of the bolts 2 from the air filter bracket The bracket is part of the machine tool kit Cre ...

Page 15: ...oses and tie back under the scuttle Cre 7 21290GB Issued 10 99 2 1 5 7 3 6 4 Release the spring 1 and remove the exhaust pipe 2 1 17 7 STEP 7 Release the clip 3 on the silencer to turbocharger 1 1 8 8 connection and remove the nuts washers and spac ers 4 Remove the silencer 5 from the bracket 6 STEP 8 Remove the three bolts and washers 7 from the exhaust bracket and remove the bracket 1 19 9 STEP ...

Page 16: ...exible pipe 26 remove the two bolts and nuts 23 and 28 in the support bracket 27 and the nut and bolt 29 and 30 in the dipstick pipe support 789M263A Remove the nut 32 from the wiring cover 31 on the starter motor 33 and remove the cover STEP 16 789M264A Remove the bolt and nut 36 in the clip 35 for the transmission oil cooler pipe 34 and release the pipe Cre 7 21290GB Issued 10 99 3 3 4 4 3 3 6 6...

Page 17: ...move the bolt and nut 43 and 45 from the shift lever and remove the lever from the transmission STEP 23 Put the wiring ties which attach the electrical harness to the support rail at the rear of the engine STEP 24 Release the oil cooler hose clamp on the right hand side of the chassis STEP 25 3 3 9 9 3 38 8 789M265A Remove the front floor mat 37 in the cab Remove the four screws 39 from the centre...

Page 18: ...e joint STEP 27 5 5 3 3 789M272A Remove the eight flywheel to torque converter bolts 56 and the washers 57 from the flex plate assem bly 58 STEP 29 5 55 5 5 5 4 4 789M271A Remove the four bolts 54 and the inspection plate 55 from the bottom of the bell housing 53 789M273A Remove all except two of the spacer housing bolts 59 Cre 7 21290GB Issued 10 99 55 11 55 00 4 49 9 5 52 2 5 5 66 57 57 5 5 66 5...

Page 19: ...he nuts 60 from each engine bracket 61 STEP 34 789M276A Remove the centre bolt 67 the nuts 64 and the washers 63 and 66 from each transmission mounting plate 65 STEP 35 Remove the rear propshaft STEP 36 Using the hoist and trolley jack raise the engine transmission unit sufficient to remove the engine mountings approximately 40 mm 1 5 in STEP 37 Lower the engine transmission unit and move it towar...

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