Case 521E Manual de usuario

SERVICE MANUAL

WHEEL LOADER

521E

TIER 3

84243970

(Replaces 87728450)

Revised June 2009

Issued February 2008

Find manuals at https://best-manuals.com

Printed in U.S.A.

Issued February, 2008 Revised December 2009

CNH America LLC.

700 State Street

Racine, WI 53404 U.S.A. (Replaces 5-10820)

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 Tab 2

Section Index - Engines 5-10850

Engine and Radiator Removal and Installation 2000 5-10860

Stall Tests 2002 5-10870

After Cooler 2003 6-49850

For Engine Repair, See the Engine Service Manual 87630273

Fuel System Tab 3

Section Index - Fuel System 5-11830

For Fuel System Repair, See the Engine Service Manual 87630273

Electrical Tab 4

Section Index - Electrical 5-10880

Removal and Installation of Starter and Alternator 4001 5-10890

Electrical Specifications and Troubleshooting 4002 5-11190

Batteries 4003 6-42331

Instrument Cluster 4005 5-10900

Steering Tab 5

Section Index - Steering 5-10911

Removal and Installation of Steering Components 5001 5-10920

Steering Specifications, Pressure Checks, and Troubleshooting 5002 5-7410

Steering Cylinders 5005 5-10930

Center Pivot 5006 5-10940

Auxiliary Steering Motor and Pump 5008 5-10950

Joystick Steering 5009 5-17000

Find manuals at https://best-manuals.com

Printed in U.S.A.

Issued February, 2008 Revised December 2009

CNH America LLC.

700 State Street

Racine, WI 53404 U.S.A. (Replaces 5-10820)

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 6002 5-11840

Transmission 6003 5-11820

Front Axle 6004 5-10980

Rear Axle 6004 84243973

Replaces 5-10990

Drive Shafts, Center Bearing, and Universal Joints 6005 5-11000

Wheels and Tires 6006 5-11010

Transmission Control Valve 6007 6-81450

Brakes Tab 7

Section Index - Brakes 5-11020

Removal and Installation of Brake Components 7001 5-11030

Hydraulic Brake Troubleshooting 7002 5-11040

Brake Pump 7003 5-11050

Brake Accumulators 7004 5-11060

Parking Brake 7008 5-11070

Hydraulics Tab 8

Section Index - Hydraulics 5-11080

How to Read Hydraulic Schematics 8000 5-5670

Removal and Installation of Hydraulic Components 8001 5-11090

Hydraulic Specifications, Troubleshooting, and Pressure Checks 8002 5-11100

Cleaning the Hydraulic System 8003 7-49641

Loader Control Valve 8005 5-11110

Cylinders 8006 5-11610

Coupler Solenoid Locking Valve 8007 6-42600

Ride Control Accumulator 8013 5-11120

Ride Control Valve 8014 5-3010

521E Wheel Loader

Service Manual

84243970 (Replaces 87728450)

Table of Contents

Description Section No. Form No.

Find manuals at https://best-manuals.com

Printed in U.S.A.

Issued February, 2008 Revised December 2009

CNH America LLC.

700 State Street

Racine, WI 53404 U.S.A. (Replaces 5-10820)

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.

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

Removal And Installation Of Air Conditioning And Heater Components 9004 5-11150

Loader 9006 5-11160

Roll Over Protective Structure (ROPS), Cab Structural Frame (CSF) 9007 5-11170

Cab Glass Installation 9010 6-42710

Electrical Schematic Foldouts and Hydraulic Schematic Foldout In Rear Pocket 5-11180

521E Wheel Loader

Service Manual

84243970 (Replaces 87728450)

Table of Contents

Description Section No. Form No.

Find manuals at https://best-manuals.com

Printed in U.S.A.

Issued February, 2008

CNH America LLC.

700 State Street

Racine, WI 53404 U.S.A. Bur 5-10830

SECTION INDEX

GENERAL

Standard Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001

Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1002

Metric Conversion Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1003

Section Title Section Number

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