Case 521E Bedienungsanleitung
SERVICE MANUAL
WHEEL LOADER
521E
TIER 3
84243970
(Replaces 87728450)
Revised June 2009
Issued February 2008
84243971 Copyright © 2009 CNH America LLC.
All rights reserved.
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
84243971 Copyright © 2009 CNH America LLC.
All rights reserved.
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
84243971 Copyright © 2009 CNH America LLC.
All rights reserved.
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
Copyright © 2008 CNH America LLC.
All rights reserved.
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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