CASE 721E Tier 3 Wheel Loader Service Repair Workshop Manual

SERVICE MANUAL WHEEL LOADER 721E TIER 3 84243980 (Replaces 87634099) Revised December 2009 Issued September 2007

84243981 Copyright © 2009 CNH America LLC. All rights reserved. Printed in U.S.A. Revised December 2009 (Issued August 2006) CNH America LLC. 700 State Street Racine, WI 53404 U.S.A. (Replaces 5-2660) 721E Wheel Loader Service Manual 84243980 (Replaces 87364099) Table of Contents Description Section No. Form No. General Tab 1 Section Index - General 5-2670 Standard Torque Specifications 1001 8-71603 Fluids and Lubricants 1002 5-2680 Metric Conversion Chart 1003 7-52950 Engines Tab 2 Section Index - Engines 5-2690 Engine and Radiator Removal and Installation 2000 5-2700 Stall Tests 2002 5-2710 After Cooler 2003 6-49850 For Engine Repair, See the Engine Service Manual 87519803 Fuel System Tab 3 Section Index - Fuel System 5-2720 For Fuel System Repair, See the Engine Service Manual Electrical Tab 4 Section Index - Electrical 5-2730 Removal and Installation of Starter and Alternator 4001 5-2740 Electrical Specifications and Troubleshooting 4002 5-2750 Batteries 4003 6-42330 Instrument Cluster 4005 5-2760 Steering Tab 5 Section Index - Steering 84298386 (Replaces 5-2770) Removal and Installation of Steering Components 5001 5-2780 Steering Specifications, Pressure Checks, and Troubleshooting 5002 5-2790 Steering Cylinders 5005 5-2800 Center Pivot 5006 5-2810 Auxiliary Steering Motor and Pump 5008 6-42430 Joystick Steering 5009 5-17020

84243981 Copyright © 2009 CNH America LLC. All rights reserved. Printed in U.S.A. Revised December 2009 (Issued August 2006) CNH America LLC. 700 State Street Racine, WI 53404 U.S.A. (Replaces 5-2660) Power Train Tab 6 Section Index - Power Train 84251801 (Replaces 5-2820) Removal and Installation of Power Train Components 6001 5-2830 Transmission Specifications, Pressure Checks, and Troubleshooting 6002 5-2840 Transmission 6003 5-2850 Front Axle 6004 5-2860 Rear Axle 6004 5-2870 Rear Axle, Serial Number N8F203816 and After 6004 84243983 Drive Shafts, Center Bearing, and Universal Joints 6005 5-2880 Wheels and Tires 6006 6-47730 Transmission Control Valve 6007 6-81450 Brakes Tab 7 Section Index - Brakes 5-2890 Removal and Installation of Brake Components 7001 5-2900 Hydraulic Brake Troubleshooting 7002 5-2910 Brake Pump 7003 5-2920 Brake Accumulators 7004 6-47761 Parking Brake 7008 5-2930 Hydraulics Tab 8 Section Index - Hydraulics 5-2940 Removal and Installation of Hydraulic Components 8001 5-2950 Hydraulic Specifications, Troubleshooting, and Pressure Checks 8002 5-2960 Cleaning the Hydraulic System 8003 7-49641 Hydraulic Pump 8004 5-2970 Loader Control Valve 8005 5-2980 Cylinders 8006 5-2990 Coupler Solenoid Locking Valve 8007 6-42600 Ride Control Accumulator 8013 5-3000 Ride Control Valve 8014 5-3010 721E Wheel Loader Service Manual 84243980 (Replaces 87364099) Table of Contents Description Section No. Form No.

84243981 Copyright © 2009 CNH America LLC. All rights reserved. Printed in U.S.A. Revised December 2009 (Issued August 2006) CNH America LLC. 700 State Street Racine, WI 53404 U.S.A. (Replaces 5-2660) Mounted Equipment Tab 9 Section Index - Mounted Equipment 5-3020 Air Conditioning Troubleshooting and System Checks For Systems with HFC-134a Refrigerant 9002 5-4030 Air Conditioner System Service 9003 5-3030 Removal And Installation Of Air Conditioning And Heater Components 9004 5-3040 Loader 9006 5-3050 Roll Over Protective Structure (ROPS), Cab Structural Frame (CSF) 9007 5-3060 Cab Glass Installation 9010 6-42710 Electrical Schematic Foldouts and Hydraulic Schematic Foldout In Rear Pocket 5-3070 721E Wheel Loader Service Manual 84243980 (Replaces 87364099) Table of Contents Description Section No. Form No.

Copyright © 2006 CNH America LLC. All rights reserved. Printed in U.S.A. Issued August, 2006 CNH America LLC. 700 State Street Racine, WI 53404 U.S.A. Bur 5-2670 SECTION INDEX GENERAL Standard Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1001 Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1002 Metric Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1003 Section Title Section Number

Section 1001 1001 Copyright © 2004 CNH America LLC. All rights reserved. Printed in U.S.A. Issued April, 2003 Revised July, 2005 CASE, LLC. 700 State Street Racine, WI 53404 U.S.A. Bur 8-71603 GENERAL TORQUE SPECIFICATIONS

1001-2 Bur 8-71603 Revised 7-05 Printed in U.S.A. TABLE OF CONTENTS TORQUE SPECIFICATIONS - DECIMAL HARDWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 TORQUE SPECIFICATIONS - METRIC HARDWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1001-3 Bur 8-71603 Revised 7-05 Printed in U.S.A. TORQUE SPECIFICATIONS - DECIMAL HARDWARE Use 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, and Studs Size Pound- Inches Newton metres 1/4 inch 108 to 132 12 to 15 5/16 inch 204 to 252 23 to 28 3/8 inch 420 to 504 48 to 57 Size Pound- Feet Newton metres 7/16 inch 54 to 64 73 to 87 1/2 inch 80 to 96 109 to 130 9/16 inch 110 to 132 149 to 179 5/8 inch 150 to 180 203 to 244 3/4 inch 270 to 324 366 to 439 7/8 inch 400 to 480 542 to 651 1.0 inch 580 to 696 787 to 944 1-1/8 inch 800 to 880 1085 to 1193 1-1/4 inch 1120 to 1240 1519 to 1681 1-3/8 inch 1460 to 1680 1980 to 2278 1-1/2 inch 1940 to 2200 2631 to 2983 Grade 8 Bolts, Nuts, and Studs Size Pound- Inches Newton metres 1/4 inch 144 to 180 16 to 20 5/16 inch 288 to 348 33 to 39 3/8 inch 540 to 648 61 to 73 Size Pound- Feet Newton metres 7/16 inch 70 to 84 95 to 114 1/2 inch 110 to 132 149 to 179 9/16 inch 160 to 192 217 to 260 5/8 inch 220 to 264 298 to 358 3/4 inch 380 to 456 515 to 618 7/8 inch 600 to 720 814 to 976 1.0 inch 900 to 1080 1220 to 1465 1-1/8 inch 1280 to 1440 1736 to 1953 1-1/4 inch 1820 to 2000 2468 to 2712 1-3/8 inch 2380 to 2720 3227 to 3688 1-1/2 inch 3160 to 3560 4285 to 4827 NOTE: Use thick nuts with Grade 8 bolts.

1001-4 Bur 8-71603 Revised 7-05 Printed in U.S.A. TORQUE SPECIFICATIONS - METRIC HARDWARE Use the following torques when specifications are not given. These values apply to fasteners with coarse threads as received from supplier, plated or unplated, or when lubricated with engine oil. These values do not apply if graphite or Molydisulfide grease or oil is used. 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. Grade 8.8 Bolts, Nuts, and Studs Size Pound- Inches Newton metres M4 24 to 36 3 to 4 M5 60 to 72 7 to 8 M6 96 to 108 11 to 12 M8 228 to 276 26 to 31 M10 456 to 540 52 to 61 Size Pound- Feet Newton metres M12 66 to 79 90 to 107 M14 106 to 127 144 to 172 M16 160 to 200 217 to 271 M20 320 to 380 434 to 515 M24 500 to 600 675 to 815 M30 920 to 1100 1250 to 1500 M36 1600 to 1950 2175 to 2600 8.8 Grade 10.9 Bolts, Nuts, and Studs Size Pound- Inches Newton metres M4 36 to 48 4 to 5 M5 84 to 96 9 to 11 M6 132 to 156 15 to 18 M8 324 to 384 37 to 43 Size Pound- Feet Newton metres M10 54 to 64 73 to 87 M12 93 to 112 125 to 150 M14 149 to 179 200 to 245 M16 230 to 280 310 to 380 M20 450 to 540 610 to 730 M24 780 to 940 1050 to 1275 M30 1470 to 1770 2000 to 2400 M36 2580 to 3090 3500 to 4200 10.9 12.9

1001-5 Bur 8-71603 Revised 7-05 Printed in U.S.A. TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS 37 Degree Flare Fitting Tube OD Hose ID Thread Size Pound- Inches Newton metres 1/4 inch 6.4 mm 7/16-20 72 to 144 8 to 16 5/16 inch 7.9 mm 1/2-20 96 to 192 11 to 22 3/8 inch 9.5 mm 9/16-18 120 to 300 14 to 34 1/2 inch 12.7 mm 3/4-16 180 to 504 20 to 57 5/8 inch 15.9 mm 7/8-14 300 to 696 34 to 79 Tube OD Hose ID Thread Size Pound- Feet Newton metres 3/4 inch 19.0 mm 1-1/16-12 40 to 80 54 to 108 7/8 inch 22.2 mm 1-3/16-12 60 to 100 81 to 135 1.0 inch 25.4 mm 1-5/16-12 75 to 117 102 to 158 1-1/4 inch 31.8 mm 1-5/8-12 125 to 165 169 to 223 1-1/2 inch 38.1 mm 1-7/8-12 210 to 250 285 to 338 Split Flange Mounting Bolts Size Pound- Inches Newton metres 5/16-18 180 to 240 20 to 27 3/8-16 240 to 300 27 to 34 7/16-14 420 to 540 47 to 61 Size Pound- Feet Newton metres 1/2-13 55 to 65 74 to 88 5/8-11 140 to 150 190 to 203 Straight Threads with O-ring Tube OD Hose ID Thread Size Pound- Inches Newton metres 1/4 inch 6.4 mm 7/16-20 144 to 228 16 to 26 5/16 inch 7.9 mm 1/2-20 192 to 300 22 to 34 3/8 inch 9.5 mm 9/16-18 300 to 480 34 to 54 1/2 inch 12.7 mm 3/4-16 540 to 804 57 to 91 Tube OD Hose ID Thread Size Pound- Feet Newton metres 5/8 inch 15.9 mm 7/8-14 58 to 92 79 to 124 3/4 inch 19.0 mm 1-1/16-12 80 to 128 108 to 174 7/8 inch 22.2 mm 1-3/16-12 100 to 160 136 to 216 1.0 inch 25.4 mm 1-5/16-12 117 to 187 159 to 253 1-1/4 inch 31.8 mm 1-5/8-12 165 to 264 224 to 357 1-1/2 inch 38.1 mm 1-7/8-12 250 to 400 339 to 542

CASE 721E Tier 3 Wheel Loader Service Repair Workshop Manual

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