Part number 47941899
2nd edition English
March 2016
Replaces part number 47700453
SERVICE MANUAL
Boomer™ 33
Boomer™ 37
Tier 4B (final)
Compact Tractor
Printed in U.S.A.
© 2016 CNH Industrial America LLC. All Rights Reserved.
New Holland is a trademark registered in the United States and many other countries,
owned by or licensed to CNH Industrial N.V., its subsidiaries or affiliates.
SERVICE MANUAL
Boomer™ 33
Boomer™ 37 TIER 4B (FINAL), Cab
Boomer™ 37 TIER 4B (FINAL), ROPS
47941899 16/03/2016
EN
Link Product / Engine
Product
Market Product
Engine
Boomer™ 33
North America
N843T-F-24
Boomer™ 37 TIER 4B (FINAL),
ROPS
North America
N843LT-F-27
Boomer™ 37 TIER 4B (FINAL),
Cab
North America
N843LT-F-27
47941899 16/03/2016
Contents
INTRODUCTION
Engine....................................................................................... 10
[10.001] Engine and crankcase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.1
[10.202] Air cleaners and lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.2
[10.206] Fuel filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.3
[10.304] Engine lubrication system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.4
[10.400] Engine cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.5
[10.501] Exhaust Gas Recirculation (EGR) exhaust treatment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.6
Clutch ....................................................................................... 18
[18.100] Clutch mechanical release control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.1
[18.110] Clutch a