Case 721E Service Manual Download Page 4

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Contents

INTRODUCTION

Engine....................................................................................... 10

[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1

[10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2

[10.310] Aftercooler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3

Transmission.............................................................................. 21

[21.113] Powershift transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.1

[21.135] Powershift transmission external controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.2

[21.155] Powershift transmission internal components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.3

[21.145] Gearbox internal components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21.4

Front axle system ....................................................................... 25

[25.100] Powered front axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.1

[25.102] Front bevel gear set and differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.2

[25.108] Final drive hub, steering knuckles, and shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25.3

Rear axle system........................................................................ 27

[27.100] Powered rear axle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.1

[27.106] Rear bevel gear set and differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.2

[27.120] Planetary and final drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27.3

Brakes and controls .................................................................... 33

[33.202] Hydraulic service brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33.1

Hydraulic systems....................................................................... 35

[35.000] Hydraulic systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.1

[35.359] Main control valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.2

[35.701] Front loader arm hydraulic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.3

Steering..................................................................................... 41

[41.910] Auxiliary steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1

71114022 15/02/2016

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Summary of Contents for 721E

Page 1: ...Loader Service Manual 1 1 Part Number 71114022 2nd Edition English 02 2016 Printed in Brazil Copyright 2016 CNH Industrial Latin America LTDA All Rights Reserved Part Number 71114022 2nd Edition English 02 2016 721E Wheel Loader ...

Page 2: ...RVICE MANUAL 721E Tier3 XT N8AE12517 721E Tier3 Z bar Bagage suggar N8AE12525 721E Tier3 Z bar Fertilizer N8AE12547 721E Tier3 Z bar N7AE12500 71114022 15 02 2016 EN Find manuals at https best manuals com ...

Page 3: ... Latin America F4HE9684F J100 721E Tier3 Z bar Fertilizer N8AE12547 Latin America F4HE9684F J100 721E Tier3 Z bar Bagage suggar N8AE12525 Latin America F4HE9684F J100 721E Tier3 XT N8AE12517 Latin America F4HE9684F J100 71114022 15 02 2016 Find manuals at https best manuals com ...

Page 4: ...wered front axle 25 1 25 102 Front bevel gear set and differential 25 2 25 108 Final drive hub steering knuckles and shafts 25 3 Rear axle system 27 27 100 Powered rear axle 27 1 27 106 Rear bevel gear set and differential 27 2 27 120 Planetary and final drives 27 3 Brakes and controls 33 33 202 Hydraulic service brakes 33 1 Hydraulic systems 35 35 000 Hydraulic systems 35 1 35 359 Main control va...

Page 5: ...cal system 55 11 55 031 Parking brake electrical system 55 12 55 512 Cab controls 55 13 55 051 Cab Heating Ventilation and Air Conditioning HVAC controls 55 14 55 050 Heating Ventilation and Air Conditioning HVAC control system 55 15 55 047 Steering control system 55 16 55 524 Cab controls Lift arm Boom Dipper Bucket 55 17 55 415 Loader arm and bucket control system 55 18 55 518 Wiper and washer s...

Page 6: ... 90 150 Cab 90 1 90 124 Pneumatically adjusted operator seat 90 2 71114022 15 02 2016 Find manuals at https best manuals com ...

Page 7: ...71114022 15 02 2016 Find manuals at https best manuals com ...

Page 8: ...INTRODUCTION 71114022 15 02 2016 1 Find manuals at https best manuals com ...

Page 9: ...hrough this manual 4 Safety rules Ecology and the environment 9 Safety rules 10 Basic instructions Shop and assembly 11 Torque Minimum tightening torques for normal assembly 13 Torque Standard torque data for hydraulics 18 See content for specific models 71114022 15 02 2016 2 Find manuals at https best manuals com ...

Page 10: ...ents 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 in...

Page 11: ...ata specifications the functional data how it works the diagnostic data fault codes and troubleshooting and the service data remove install adjust etc By integrating SAP coding into technical information you will be able to search and retrieve just the right piece of technical information you need to resolve that customer s concern on his machine This is made possible by attaching 3 categories to ...

Page 12: ...stems on the machine Each Section is identified by a number 00 35 55 etc The Sections included in the manual will depend on the type and function of the machine that the manual is written for Each Section has a Contents page listed in alphabetic numeric order This table illustrates which Sections could be included in a manual for a particular product PRODUCT Tractors Vehicles with working arms bac...

Page 13: ...2 Separation X 73 Residue handling X 74 Cleaning X 75 Soil preparation Finishing 76 Secondary cleaning Destemmer 77 Seeding X 78 Spraying X 79 Planting X 80 Crop storage Unloading X 82 Front loader and bucket X X 83 Telescopic single arm X X 84 Booms dippers and buckets X X 86 Dozer blade and arm X X 88 Accessories X X X X X 89 Tools X X X X X 90 Platform cab bodywork and decals X X X X 71114022 1...

Page 14: ...e 10 001 TECHNICAL DATA ENGINE Engine and crankcase General specification 10 001 D 40 A 10 4 FUNCTIONAL DATA ENGINE Engine and crankcase Dynamic description 10 001 C 30 A 10 6 SERVICE ENGINE Engine and crankcase Remove 10 001 F 10 A 10 8 DIAGNOSTIC ENGINE Engine and crankcase Troubleshooting 10 001 G 40 A 10 10 INDEX The Chapter Index lists in alphabetical order all the types of information called...

Page 15: ...the chapters of the service manual After B there may be some additional information In this case it shows 01 which represents the Front block cover These options may be front rear left right hydraulic mechanical etc C corresponds to the type of information listed in the chapter contents Technical Data Functional Data Diagnos tic or Service A and B are also shown in the page numbering on the page f...

Page 16: ...ow 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...

Page 17: ...ciated with WARNING is ORANGE CAUTION indicates a hazardous situation that if not avoided could result in minor or moderate injury The color associated with CAUTION is YELLOW 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 damage or property damage The color ...

Page 18: ...on 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 t...

Page 19: ... ground 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 ...

Page 20: ...in 25 N m 217 lb in 26 N m 234 lb in 35 N m 311 lb in 17 N m 151 lb in 24 N m 212 lb in M10 37 N m 27 lb ft 49 N m 36 lb ft 52 N m 38 lb ft 70 N m 51 lb ft 33 N m 25 lb ft 48 N m 35 lb ft M12 64 N m 47 lb ft 85 N m 63 lb ft 91 N m 67 lb ft 121 N m 90 lb ft 58 N m 43 lb ft 83 N m 61 lb ft M16 158 N m 116 lb ft 210 N m 155 lb ft 225 N m 166 lb ft 301 N m 222 lb ft 143 N m 106 lb ft 205 N m 151 lb ft...

Page 21: ...9 N m 343 lb in 18 N m 163 lb in 27 N m 240 lb in M10 40 N m 30 lb ft 54 N m 40 lb ft 57 N m 42 lb ft 77 N m 56 lb ft 37 N m 27 lb ft 53 N m 39 lb ft M12 70 N m 52 lb ft 93 N m 69 lb ft 100 N m 74 lb ft 134 N m 98 lb ft 63 N m 47 lb ft 91 N m 67 lb ft M16 174 N m 128 lb ft 231 N m 171 lb ft 248 N m 183 lb ft 331 N m 244 lb ft 158 N m 116 lb ft 226 N m 167 lb ft M20 350 N m 259 lb ft 467 N m 345 lb...

Page 22: ...ft 7 16 48 N m 36 lb ft 65 N m 48 lb ft 68 N m 50 lb ft 91 N m 67 lb ft 50 N m 37 lb ft 71 N m 53 lb ft 1 2 74 N m 54 lb ft 98 N m 73 lb ft 104 N m 77 lb ft 139 N m 103 lb ft 76 N m 56 lb ft 108 N m 80 lb ft 9 16 107 N m 79 lb ft 142 N m 105 lb ft 150 N m 111 lb ft 201 N m 148 lb ft 111 N m 82 lb ft 156 N m 115 lb ft 5 8 147 N m 108 lb ft 196 N m 145 lb ft 208 N m 153 lb ft 277 N m 204 lb ft 153 N...

Page 23: ...85 lb ft 153 N m 113 lb ft 74 N m 55 lb ft 104 N m 77 lb ft 9 16 117 N m 86 lb ft 156 N m 115 lb ft 165 N m 122 lb ft 221 N m 163 lb ft 106 N m 78 lb ft 157 N m 116 lb ft 5 8 162 N m 119 lb ft 216 N m 159 lb ft 228 N m 168 lb ft 304 N m 225 lb ft 147 N m 108 lb ft 207 N m 153 lb ft 3 4 287 N m 212 lb ft 383 N m 282 lb ft 405 N m 299 lb ft 541 N m 399 lb ft 261 N m 193 lb ft 369 N m 272 lb ft 7 8 4...

Page 24: ...8 4 Grade Identification Grade Corner Marking Method 1 Flats Marking Method 2 Clock Marking Method 3 Grade A No Notches No Mark No Marks Grade B One Circumferential Notch Letter B Three Marks Grade C Two Circumferential Notches Letter C Six Marks 71114022 15 02 2016 17 ...

Page 25: ...0 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 12 149 163 ...

Page 26: ...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...

Page 27: ...INTRODUCTION 71114022 15 02 2016 20 ...

Page 28: ...SERVICE MANUAL Engine 721E Tier3 XT N8AE12517 721E Tier3 Z bar Bagage suggar N8AE12525 721E Tier3 Z bar Fertilizer N8AE12547 721E Tier3 Z bar N7AE12500 71114022 15 02 2016 10 ...

Page 29: ...Contents Engine 10 10 001 Engine and crankcase 10 1 10 400 Engine cooling system 10 2 10 310 Aftercooler 10 3 71114022 15 02 2016 10 ...

Page 30: ...Engine 10 Engine and crankcase 001 721E Tier3 XT N8AE12517 721E Tier3 Z bar Bagage suggar N8AE12525 721E Tier3 Z bar Fertilizer N8AE12547 721E Tier3 Z bar N7AE12500 71114022 15 02 2016 10 1 10 001 1 ...

Page 31: ...Contents Engine 10 Engine and crankcase 001 TECHNICAL DATA Engine Speeds 3 See content for specific models 71114022 15 02 2016 10 1 10 001 2 ...

Page 32: ...e Engine and crankcase Engine Speeds 721E LA 1021F 1121F Machine idled alternate low idle 570 630 rpm Machine idled cold weather alternate accelerated low idle 1170 1230 rpm 71114022 15 02 2016 10 1 10 001 3 ...

Page 33: ...Index Engine 10 Engine and crankcase 001 Engine Speeds 3 See content for specific models 71114022 15 02 2016 10 1 10 001 4 ...

Page 34: ...Engine 10 Engine cooling system 400 721E Tier3 XT N8AE12517 721E Tier3 Z bar Bagage suggar N8AE12525 721E Tier3 Z bar Fertilizer N8AE12547 721E Tier3 Z bar N7AE12500 71114022 15 02 2016 10 2 10 400 1 ...

Page 35: ...Contents Engine 10 Engine cooling system 400 SERVICE Radiator Remove 3 See content for specific models 71114022 15 02 2016 10 2 10 400 2 ...

Page 36: ...ke and shut down en gine 2 Place the linkage lock in the LOCKED position LAIL11WL1525A0A 1 3 Place the master disconnect switch in the OFF posi tion RCPH11WHL653BAU 2 4 Have another person lift and secure the side panel in the raised position Remove the fastening bolts from the side panel Remove the panel 71114022 15 02 2016 10 2 10 400 3 ...

Page 37: ...the radiator cap Then remove the drain plug and drain the coolant into the container Install the drain plug after you have drained out the coolant Install the radiator cap BRCE12WLCCM143B 5 7 Loosen the clamps 1 and 2 of the two hoses Dis connect the two hoses 3 and 4 from the fuel cooler 5 Plug the ends of the hoses and the holes of the cooler in order to prevent the entry of foreign material int...

Page 38: ...cooling system Tilt the air conditioning condenser to its vertical posi tion Loosen the two hose clamps 7 Remove hose 8 BRCE12WLCCM067B 8 10 Loosen the two clamps that secure the lower radiator hose Remove the lower hose BRCE12WLCCM092A 9 11 Remove the radiator cap 9 Disconnect the overfill ing overflow hose 10 Install the radiator cap Dis connect the connector of the coolant level sender 11 Remov...

Page 39: ...1 13 Install the lifting equipment on the lifting eyes Elimi nate any slack present in the straps of the lifting equip ment BRCE12WLCCM093A 12 14 Remove the four bolts 15 and the lock washers that secure the radiator to the cooling frame Slowly and carefully lift the radiator cooling frame Remove the frame from the loader LAIL11CW0897A0A 13 71114022 15 02 2016 10 2 10 400 6 ...

Page 40: ...Index Engine 10 Engine cooling system 400 Radiator Remove 3 See content for specific models 71114022 15 02 2016 10 2 10 400 7 ...

Page 41: ...71114022 15 02 2016 10 2 10 400 8 ...

Page 42: ...Engine 10 Aftercooler 310 721E Tier3 XT N8AE12517 721E Tier3 Z bar Bagage suggar N8AE12525 721E Tier3 Z bar Fertilizer N8AE12547 721E Tier3 Z bar N7AE12500 71114022 15 02 2016 10 3 10 310 1 ...

Page 43: ...Contents Engine 10 Aftercooler 310 SERVICE Aftercooler Remove 3 Install 11 Pressure test 23 DIAGNOSTIC Aftercooler Testing 28 See content for specific models 71114022 15 02 2016 10 3 10 310 2 ...

Page 44: ...ort units or parts with suitable slings or hooks Make sure the work area is clear of all bystanders Failure to comply could result in death or serious injury W0398A 1 Raise hood using controls located behind the access cover RCPH11WHL652BAU 1 2 After hood is raised turn master electric switch to the off position RCPH11WHL653BAU 2 71114022 15 02 2016 10 3 10 310 3 ...

Page 45: ...lide looped strap through the hood exhaust opening RAPH12WEL0170AA 4 6 Place a solid steel bar through the strap loop see ar row and tighten Attach the other end of the strap to a suitable lifting device and remove any slack in the line NOTE Note the position of the lifting bar strap It is offset to even out the weight distribution of the hood RAPH12WEL0193AA 5 71114022 15 02 2016 10 3 10 310 4 ...

Page 46: ...r switch back to the OFF position RAPH12WEL0191AA 6 8 Remove the hood bracket bolts and move hood away from back plate allowing enough clearance to reach air cooler unit front bolts RAPH12WEL0169AA 7 Turbocharger tube removal 9 Loosen top left side clamp of the air cooler outlet hose NOTE Loosen only the clamp closest to the air cooler RAPH12WEL0207AA 8 71114022 15 02 2016 10 3 10 310 5 ...

Page 47: ...arger RAPH12WEL0206AA 9 Intake port tube removal 11 Loosen top right side clamps of the air cooler intake hose Slide hose back far enough to clear air cooler tube RAPH12WEL0200AA 10 12 Loosen end clamp on intake port side of the engine Remove tube with hose RAPH12WEL0202AA 11 71114022 15 02 2016 10 3 10 310 6 ...

Page 48: ...rubber T handle from the screen cover NOTE Screen cover may be different from what is shown RAPH12WEL0190AA 12 14 Lift screen cover part way Pull cotter pin and washer from screen tab and locking bar prop RAPH12WEL0189AA 13 71114022 15 02 2016 10 3 10 310 7 ...

Page 49: ... RAPH12WEL0181AA 14 air cooler unit removal NOTE For Commodity King include instruction 16 For Standard 721F omit instruction 16 and go to instruction 17 Commodity king only 16 Lift side panels Unbolt and remove left and right beam seals then lower side panels NOTE Left side shown RAPH12WEL0222AA 15 71114022 15 02 2016 10 3 10 310 8 ...

Page 50: ...the shoulder bolt RAPH12WEL0177AA 16 18 Remove shoulder bolt washers and nut 1 from air conditioner condenser unit 2 RAPH12WEL0221AA 17 19 Lift air conditioner condenser up and angle toward the back of the cab Support in place if needed RAPH12WEL0146AA 18 71114022 15 02 2016 10 3 10 310 9 ...

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