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Case 921E Service Manual
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Case 921E Service Manual

Wheel loader tier 3
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SERVICE MANUAL
WHEEL LOADER
921E
TIER 3
84299249
(Replaces 87624950)
Revised December 2009
Issued February 2007

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Summary of Contents for Case 921E

  • Page 1 SERVICE MANUAL WHEEL LOADER 921E TIER 3 84299249 (Replaces 87624950) Revised December 2009 Issued February 2007...
  • Page 2 921E Wheel Loader Service Manual 84299249 (Replaces 87624950) Table of Contents Description Section No. Form No. General Tab 1 Section Index - General 5-5380 Standard Torque Specifications 1001 8-71603 Fluids and Lubricants 1002 5-5390 Metric Conversion Chart 1003 7-52950 Engines...
  • Page 3 921E Wheel Loader Service Manual 84299249 (Replaces 87624950) Table of Contents Description Section No. Form No. Power Train Tab 6 Section Index - Power Train 5-5550 Removal and Installation of Power Train Components 6001 5-5560 Transmission Specifications, Pressure Checks, and Troubleshooting...
  • Page 4 921E Wheel Loader Service Manual 84299249 (Replaces 87624950) Table of Contents Description Section No. Form No. Electrical Schematic Foldouts and Hydraulic Schematic Foldout In Rear Pocket 5-5800 NOTE: CNH America LLC. 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.
  • Page 5 Metric Conversion Chart ..............1003 Copyright © 2007 CNH America LLC. All rights reserved. CASE, LLC. Printed in U.S.A. 700 State Street Issued February, 2007 Racine, WI 53404 U.S.A.
  • Page 6 Section 1001 GENERAL TORQUE SPECIFICATIONS Copyright © 2004 CNH America LLC. All rights reserved. CASE, LLC. Printed in U.S.A. 700 State Street Issued April, 2003 Revised July, 2005 Racine, WI 53404 U.S.A. Bur 8-71603 Find manuals at https://best-manuals.com...
  • Page 7 1001-2 TABLE OF CONTENTS TORQUE SPECIFICATIONS - DECIMAL HARDWARE ..........3 TORQUE SPECIFICATIONS - METRIC HARDWARE .
  • Page 8 1001-3 TORQUE SPECIFICATIONS - DECIMAL HARDWARE Use the torques in this chart when special torques Grade 8 Bolts, Nuts, and Studs 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 Pound-...
  • Page 9 1001-4 TORQUE SPECIFICATIONS - METRIC HARDWARE Use the following torques when specifications are not Grade 10.9 Bolts, Nuts, and Studs given. These values apply to fasteners with coarse threads as received from supplier, plated or unplated, or 10.9 when lubricated with engine oil. These values do not apply if graphite or Molydisulfide grease or oil is Pound- Newton...
  • Page 10 1001-5 TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS 37 Degree Flare Fitting Straight Threads with O-ring Tube OD Thread Pound- Newton Tube OD Thread Pound- Newton Hose ID Size Inches metres Hose ID Size Inches metres 1/4 inch 7/16-20 72 to 144 8 to 16 1/4 inch 7/16-20...
  • Page 11 1001-6 TORQUE SPECIFICATIONS - STEEL HYDRAULIC FITTINGS O-ring Boss End O-ring Face Seal End Fitting or Lock Nut Nom. Dash Thread Pound- Newton Thread Pound- Newton Size Tube OD Size Inches metres Size Inches metres 1/4 inch 9/16-18 120 to 144 14 to 16 7/16-20 204 to 240...
  • Page 12 Section 1002 FLUIDS AND LUBRICANTS Copyright © 2007 CNH Ameica LLC. All rights reserved. CNH America LLC. Printed in U.S.A. 700 State Street Issued February, 2007 Racine, WI 53404 U.S.A. Bur 5-5390...

  • Page 13: Table Of Contents

    Model 921E ........

  • Page 14: Capacities And Lubricants

    Engine Oil Capacity with Filter Change ..................30.0 liters (32 U.S. quarts) Type of oil ....Case AKCELA No. 1 (SAE 15W-40) engine oil - see engine oil recommendations on page 4 Engine Cooling System Capacity........................56.8 liters (15.0 U.S. Gallons) Type of Coolant ....................50% water and 50% Ethylene Glycol...

  • Page 15: Engine Oil Recommendations

    1002-4 ENGINE OIL RECOMMENDATIONS Case AKCELA No. 1 Engine oil is recommended for use in your Case engine. Case AKCELA No. 1 Engine Oil will lubricate your engine correctly under all operating conditions. If Case AKCELA No. 1 Multi-Viscosity Oil is not available, use only oil meeting API engine oil service -4 (preferred) or CG-4.

  • Page 16: Diesel Fuel System

    1002-5 DIESEL FUEL SYSTEM Fuel Storage Use No. 2 diesel fuel in the engine of this machine. The use of other fuels can cause the loss of engine If you keep fuel in storage for a period of time, you power and high fuel consumption.

  • Page 17: Maintenance Schedule

    LUBRICATE REAR AXLE TRUNNION PINS (2 FITTINGS) .............. CASE AKCELA MOLYDISULFIDE GREASE EVERY 100 HOURS OF OPERATION LUBRICATE THE STEERING CYLINDER PIVOTS - ROD AND CLOSED END (4 FITTINGS) ..CASE AKCELA MOLYDISULFIDE GREASE LUBRICATE THE LOADER LIFT ARM AND CYLINDER PIVOTS (7 FITTINGS) Z-BAR ....CASE AKCELA MOLYDISULFIDE GREASE LUBRICATE THE FRONT DRIVE SHAFT SUPPORT BEARING............
  • Page 18 Section 1003 METRIC CONVERSION CHART Copyright © 2003 CNH Ameica LLC. All rights reserved. CNH America LLC. Printed in U.S.A. 700 State Street Issued April, 2003 Racine, WI 53404 U.S.A. Bur 7-52590...
  • Page 19 1003-2 TABLE OF CONTENTS CONVERSION FACTORS ..............3 Metric to U.S.
  • Page 20 1003-3 CONVERSION FACTORS Metric to U.S. MULTIPLY TO OBTAIN Area: sq. meter 10.763 91 square foot hectare 2.471 05 acre Force: newton 3.596 942 ounce force newton 0.224 809 pound force Length: millimeter 0.039 370 inch meter 3.280 840 foot kilometer 0.621 371 mile...
  • Page 21 1003-4 U.S. to Metric MULTIPLY TO OBTAIN Area: square foot 0.092 903 square meter acre 0.404 686 hectare Force: ounce force 0.278 014 newton pound force 4.448 222 newton Length: inch 25.4 * millimeter foot 0.304 8 * meter mile 1.609 344 * kilometer Mass:...
  • Page 22 After Cooler ................2003 FOR ENGINE REPAIR, SEE YOUR CUMMINS DEALER Copyright © 2007 CNH America LLC. All rights reserved. CASE, LLC. Printed in U.S.A. 700 State Street Issued February, 2007 Racine, WI 53404 U.S.A.
  • Page 23 Section 2000 ENGINE AND RADIATOR REMOVAL AND INSTALLATION Copyright © 2007 CNH Ameica LLC. All rights reserved. CNH America LLC. Printed in U.S.A. 700 State Street Issued February, 2007 Racine, WI 53404 U.S.A. Bur 5-5410...
  • Page 24 2000-2 TABLE OF CONTENTS Engine ................. . 3 Removal .
  • Page 25 2000-3 ENGINE Removal STEP 8 IMPORTANT: When disconnecting fuel or hydraulics connections put caps on the fittings and plugs in the hoses to prevent foreign material from entering the system. STEP 1 BD07A219 Raise the hood with the hood lift motor. Put master disconnect switch in OFF position.
  • Page 26 2000-4 STEP 11 STEP 14 BD07B111 BD07B108 Remove the pin from the top of the lifting motor. Attach sling left side of the hood. STEP 15 STEP 12 BD07B112 BD07B109 Put punch in the hole to hold washer and bolt from Attach sling right side of the hood.
  • Page 27 2000-5 STEP 17 STEP 21 BD07B114 BD07B117 M a r k we d g e a n d h o o d fo r r e p o s i t i o n d u r i n g Loosen hand rail bolts, turn the hand rail out away assembly, remove bolt, washer, and wedge.
  • Page 28 2000-6 STEP 25 STEP 27 BD07B214 BD07B296 Open the hydraulic reservoir cap. Attach a hose to Located behind the rear axle on the right side of the the hydraulic reser voir drain valve, drain the frame, disconnect the return line from the oil cooler, reservoir.
  • Page 29 2000-7 STEP 30 STEP 33 BD07B200 BD07B206 Tag and disconnect fan hoses. Tag and disconnect the fuel cooler hoses from the fuel cooler, remove brackets securing fuel hoses to STEP 31 cooler pack. STEP 34 BD07B204 Tag and disconnect four oil cooler hoses. BD07B230 STEP 32 Disconnect the fuel tank vent hose.
  • Page 30 2000-8 STEP 36 STEP 39 Carefully raise and remove cooler pack from loader. Lower cooler pack onto suitable platfor m and disconnect lifting equipment. STEP 40 BD07B178 Loosen clamps and remove upper radiator hose and tube. Loosen the clamps and remove the hoses from the after cooler.
  • Page 31 2000-9 STEP 42 STEP 45 BD07B222 BD07B225 Disconnect air filter restriction indicator switch. If equipped with ether, disconnect the ether solenoid connector. Remove mounting bolt for fuel cap chain, STEP 43 remove mounting bolt for engine oil dipstick. STEP 46 Attach lifting equipment to the fire wall and muffler mounting frame.
  • Page 32 2000-10 STEP 49 STEP 52 BD07B072 BD07B210 Tag and disconnect electrical connectors from the Disconnect the heater hose and lower radiator hose. alternator. STEP 53 STEP 50 BD07B211 Remove the mounting bolt for the deaeration tank to BD07B217 Disconnect the engine block vent hose. lower radiator hose.
  • Page 33 2000-11 STEP 55 STEP 58 BD07A222 BD07B231 If loader is equipped with air conditioning, disconnect Remove mounting bolts for brackets. Tag and the low pressure hose from the compressor. disconnect the grounding wires on the side of the engine block. STEP 59 STEP 56 BD07B238...
  • Page 34 2000-12 STEP 61 STEP 64 BD07B067 BD07B070 Remove the rubber cap from the starter solenoid Tag and disconnect the ground cables from the cover. starter. STEP 62 STEP 65 Refer to section 6001 and prepare the transmission for removal. STEP 66 Attach lifting equipment to the engine, remove the mounting bolts on the engine and transmission.
  • Page 35 2000-13 Installation BS07B492 1. NUT 4. ISOLATOR UPPER 7. ENGINE MOUNT BOLT 10. WASHER 2. WASHER 5. ISOLATOR LOWER 8. ENGINE MOUNT PLATE 11. BOLT 3. WASHER 6. WASHER 9. NUT Bur 5-5410 Issued 2-07 Printed in U.S.A.
  • Page 36 2000-14 STEP 68 STEP 75 If engine rubber isolators require replacement, remove and discard isolators (3 and 4). Install new rubber isolator (4), then rubber isolator (3). STEP 69 Slowly raise engine and transmission, move into position over rear chassis. Be sure all harness connections and hoses are out of the way then lower the engine and transmission.
  • Page 37 2000-15 STEP 78 STEP 81 BD07B240 BD07B213 Connect engine controller, torque mounting bolt to Install mounting bolts and clamps securing the 2 Nm (18 pound inches). Install mounting bolt for heater hose and wiring harness. Connect heater wiring harness clamp. Connect the grounding wires hose at bell housing side of engine.
  • Page 38 2000-16 STEP 84 STEP 87 BD07B211 BD07B217 Install the mounting bolt for the deaeration tank to Connect the engine block vent hose. lower radiator hose. STEP 88 STEP 85 BD07B072 Connect electrical connectors to the alternator, make BD07B210 Connect the heater hose and lower radiator hose. sure wires do not rub the engine.
  • Page 39 2000-17 STEP 90 STEP 92 BD07B233 BD07B224 Install the mounting bolts into the fire wall to rear Place the wiring harness to the top of the fire wall, chassis and muffler to hydraulic reservoir brackets. Install wiring harness mounting clamp bolts. Push the Tighten bolts mounting the fire wall to the frame first ether hose through the fire wall and connect the t h e n t h e b o l t s m o u n t i n g t h e b ra cke t s t o t h e...
  • Page 40 2000-18 STEP 95 STEP 98 BD07B212 BD07B208 Connect the turbo inlet hose and tighten the clamp. Install the bushings and the mounting bolts for the Connect the muffler flex pipe from the turbo and cooler pack, tighten the bolts. Remove the lifting torque the clamp to 17 ±...
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