Part number 51428262
2nd edition English
December 2017
SERVICE MANUAL
521G
Tier 4B (final)
Wheel Loader
Printed in U.S.A.
© 2018 CNH Industrial Italia S.p.A. All Rights Reserved.
Case is a trademark registered in the United States and many
other countries, owned or licensed to CNH Industrial N.V.,
its subsidiaries or affiliates.
SERVICE MANUAL
521G WHEEL LOADER XR-EH, NEW CAB TIER4B NA
521G WHEEL LOADER XT-EH, NEW CAB TIER4B NA
521G WHEEL LOADER ZBAR-EH, NEW CAB TIER4B NA
51428262_EN 14/12/2017
EN
Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1
[10.216] Fuel tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2
[10.202] Air cleaners and lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3
[10.500] Selective Catalytic Reduction (SCR) exhaust treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4
[10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5
[10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.6
[10.310] Aftercooler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.7
[10.304] Engine lubrication system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.8
Transmission.............................................................................. 21
[21.113] Powershift transmission . . . . . . . . . . . .