Case 521E Service Manual
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Case 521E Service Manual

Case 521E Service Manual

Wheel loader
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SERVICE MANUAL
WHEEL LOADER
521E
TIER 3
84243970
(Replaces 87728450)
Revised June 2009
Issued February 2008

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  • Page 1 SERVICE MANUAL WHEEL LOADER 521E TIER 3 84243970 (Replaces 87728450) Revised June 2009 Issued February 2008...
  • Page 2 Find manuals at https://best-manuals.com...
  • Page 3 521E Wheel Loader Service Manual 84243970 (Replaces 87728450) Table of Contents Description Section No. Form No. General Tab 1 Section Index - General 5-10830 Standard Torque Specifications 1001 8-71603 Fluids and Lubricants 1002 5-10840 Metric Conversion Chart 1003 7-52950 Engines...
  • Page 4 521E Wheel Loader Service Manual 84243970 (Replaces 87728450) Table of Contents Description Section No. Form No. Power Train Tab 6 Section Index - Power Train 5-10960 Removal and Installation of Power Train Components 6001 5-10970 Transmission Specifications, Pressure Checks, and Troubleshooting...
  • Page 5 521E Wheel Loader Service Manual 84243970 (Replaces 87728450) Table of Contents Description Section No. Form No. Mounted Equipment Tab 9 Section Index - Mounted Equipment 5-11130 Air Conditioning Troubleshooting and System Checks 9002 5-4030 Air Conditioner System Service 9003 5-11140...
  • Page 6 SECTION INDEX GENERAL Section Title Section Number Standard Torque Specifications............. .1001 Fluids and Lubricants .
  • Page 7 Find manuals at https://best-manuals.com...
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  • Page 14 Section 1002 FLUIDS AND LUBRICANTS Copyright © 2008 CNH America LLC. All rights reserved. CNH America LLC. Printed in U.S.A. 700 State Street Issued February, 2008 Racine, WI 53404 U.S.A. Bur 5-10840...

  • Page 15: Table Of Contents

    Model 521E ........

  • Page 16: Capacities And Lubricants

    NOTE: DO NOT use an alternate oil in the axles. The brake components in the axles could be damaged as a result of using an alternate oil. Machines are shipped from the factory with break-in oil. Brake System ® Type of Fluid (Same as Hydraulic System)..............Case AKCELA Hy-Tran Ultra Fittings Grease as required ....................Case AKCELA Molydisulfide Bur 5-10840 Issued 2-08 Printed in U.S.A.

  • Page 17: 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...

  • Page 18: Tranmission Temperature Chart

    1002-5 TRANMISSION TEMPERATURE CHART BC04F193 HYDRAULIC/BRAKE SYSTEM TEMPERATURE CHART BC04F192 Bur 5-10840 Issued 2-08 Printed in U.S.A.

  • Page 19: Diesel Fuel System

    1002-6 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 20: Maintenance Schedule

    1002-7 MAINTENANCE SCHEDULE Model 521E FREQUENCY IN HOURS SERVICE SERVICE POINTS INTERVAL Air cleaner Bleed Fuel Filter of Condensation Hydraulic Filter Variable Periodic Alternator, AC, Drive Belt ( * ) Radiator Coolant Level Fire extinguisher Tires Every 10 Hours Check Engine Oil Level...

  • Page 21: Maintenance Points

    1002-8 MAINTENANCE POINTS Model 521E 12 22 20 16 18 29 28 BS08B289 See your Operators manual for maintenance of If you operate the machine in severe conditions, safety related items and for detailed information of lubricate and service the machine more frequently.
  • Page 26 SECTION INDEX ENGINES Section Title Section Number Engine and Radiator Removal and Installation ..........2000 Stall Tests .
  • Page 28 Section 2000 ENGINE AND RADIATOR REMOVAL AND INSTALLATION Copyright © 2008 CNH Ameica LLC. All rights reserved. CNH America LLC. Printed in U.S.A. 700 State Street Issued February, 2008 Racine, WI 53404 U.S.A. Bur 5-10860...
  • Page 29 2000-2 TABLE OF CONTENTS Engine ................. . 3 Removal .
  • Page 30 2000-3 ENGINE Removal STEP 5 STEP 1 BD02N160 Put a container capable of holding at least 22.7 liter (6.0 gallon) below radiator drain. Remove radiator BD03A040 cap. Remove cap and drain coolant into container. Park machine on a level surface and lower bucket to Install cap after coolant has drained.
  • Page 31 2000-4 STEP 7 STEP 10 BD03A231 BD07N565-01 Double up a nylon lifting strap (1) and slide through Remove the rear lift cylinder from the machine. the exhaust stack (2) on the hood. STEP 11 STEP 8 BD07N566-01 BD07N564-01 Tag and disconnect hood wiring harness connector Place a solid steel bar through the strap, raise the and backup alarm connector from rear chassis wiring hood and release tension on the lifting motor.
  • Page 32 2000-5 STEP 13 STEP 16 BD03A232 BD07N569-01 Carefully raise and remove hood from loader. Lower Loosen clamps on turbocharger and air cleaner, hood onto suitable platform and disconnect lifting remove the intake hose. equipment. STEP 17 STEP 14 BD07N590-01 BD07N568-01 Remove the air cleaner by removing the four bolts.
  • Page 33 2000-6 STEP 19 STEP 22 BD07N565-01 BD07N572-01 Loosen the clamp on the after cooler and remove the Loosen the exhaust clamp from the turbocharger. after cooler inlet hose from the machine. STEP 23 STEP 20 BD07N592-01 Remove the muffler from the bracket. BD07N570-01 Loosen the clamp on the intake manifold for the after cooler output hose.
  • Page 34 2000-7 STEP 24 STEP 26 BD07N577-01 BD07N600-01 Loosen clamps and remove lower cooler hose from the engine. STEP 27 BD07N573-01 Remove the four mounting bolts from the belt cover, remove the cover. NOTE: After removing the belt cover remove the BD07N579-01 cover mounting brackets from the machine frame.
  • Page 35 2000-8 STEP 28 STEP 30 BD07N575-01 BD07N581-01 Tag and disconnect the wiring from the alternator. Tag and remove the wires from the starter solenoid (2), remove the ground cable and ground strap (3) STEP 29 from the starter. Then remove the two mounting bolts (1).
  • Page 36 2000-9 STEP 32 STEP 33 BD07N596-01 BD07N585-01 Tag and remove the grid heater cable. STEP 34 BD07N583-01 BD07N586-01 Disconnect the wiring harness from the EDC 7 controller. NOTE: Lifting up on the lever will release the connector from the controller. STEP 35 BD07N584-01 Remove the radiator hose (1) from the rear of the...
  • Page 37 2000-10 STEP 36 STEP 39 BD07N598-01 BD03A172 Tag and disconnect the fuel filter heater wires (1), Remove the drive shaft bolts from the flywheel. Move disconnect the fuel line (2) from the fuel filter head, the drive shaft clear of the flywheel. plug the line and cap the fitting.
  • Page 38 2000-11 Installation BS08A031 1. ENGINE MOUNT BOLT 3. INSOLATOR UPPER 5. WASHER 7. NUT 9. OIL FILL TUBE 2. WASHER 4. INSOLATOR LOWER 6. WASHER 8. REMOTE OIL DRAIN HOSE STEP 42 STEP 43 Slowly raise engine and move into position over rear If engine rubber isolators require replacement, chassis.
  • Page 39 2000-12 STEP 44 STEP 49 Tighten engine mounting bolts to a torque of 244 to 298 Nm (180 to 220 lb-ft). STEP 45 Disconnect lifting equipment from engine lifting brackets. STEP 46 Connect engine oil drain hose to frame bracket. STEP 47 BD07N588-01 Connect and turn on vacuum pump to the hydraulic...
  • Page 40 2000-13 STEP 52 BD07N583-01 BD07N586-01 Connect wiring harness to EDC 7 controller. NOTE: Start the connector on the EDC 7 with lever straight out from EDC 7. Use lever to pull connector into position. STEP 53 BD07N584-01 Install the heater hose (2) to the rear of the engine, mount the clamps (3), install the radiator hose (1).
  • Page 41 This as a preview PDF file from best-manuals.com Download full PDF manual at best-manuals.com...

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