Part number 51428265
2nd edition English
December 2017
SERVICE MANUAL
621G
721G
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
621G WHEEL LOADER XR-EH, NEW CAB TIER4B NA, 621G WHEEL LOADER
XT-EH, NEW CAB TIER4B NA, 621G WHEEL LOADER ZBAR-EH, NEW CAB
TIER4B NA, 721G WHEEL LOADER XR-EH, NEW CAB TIER4B NA, 721G
WHEEL LOADER XT-EH, NEW CAB TIER4B NA, 721G WHEEL LOADER
ZBAR-EH, NEW CAB TIER4B NA
51428265_EN 18/12/2017
EN
Link Product / Engine
Product
Market Product
Engine
621G WHEEL LOADER ZBAR-EH,
NEW CAB TIER4B NA
North America
F4HFE613W*B002
621G WHEEL LOADER XT-EH,
NEW CAB TIER4B NA
North America
F4HFE613W*B002
621G WHEEL LOADER XR-EH,
NEW CAB TIER4B NA
North America
F4HFE613W*B002
721G WHEEL LOADER ZBAR-EH,
NEW CAB TIER4B NA
North America
F4HFE613T*B001
721G WHEEL LOADER XT-EH,
NEW CAB TIER4B NA
North America
F4HFE613T*B001
721G WHEEL LOADER XR-EH,
NEW CAB TIER4B NA
North America
F4HFE613T*B001
51428265_EN 18/12/2017
Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1
[10.202] Air cleaners and lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2
[10.500] Selective Catalytic Reduction (SCR) exhaust treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3
[10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4
[10.414] Fan and drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5
[