Abbrevia-
tion
Actual word spelled out
Purpose of use (major ap-
plicable machine (*), or
component/system)
Explanation
ECM
Electronic Control Mod-
ule
Electronic control system
Electronic control device uses the signals from
the sensors on the machine. These signals indi-
cate the optimum actuation to the actuators.
(Same as ECU)
ECMV
Electronic Control Mod-
ulation Valve
Transmission
Proportional electromagnetic valve that gradually
increases oil pressure to engage clutch and re-
duces transmission shock.
(D, HD, WA, etc)
ECSS
Electronically Controlled
Suspension System
Travel
This system ensures smooth high-speed travel
by absorbing vibration of machine during travel
with hydraulic spring effect of accumulator.
(WA)
ECU
Electronic Control Unit
Electronic control system
Electronic control device uses the signals from
the sensors on the machine. These signals indi-
cate the optimum actuation to the actuators.
(Same as ECM)
EGR
Exhaust Gas Recircula-
tion
Engine
This function recirculates part of exhaust gas to
combustion chamber in order to reduce combus-
tion temperature, controls emission of NOx.
EMMS
Equipment Manage-
ment Monitoring System Machine monitor
This system allows data (filter, oil replacement in-
terval, malfunctions on machine, failure code,
and failure history) from each sensor on the ma-
chine to be checked on the monitor.
EPC
Electromagnetic Propor-
tional Control
Hydraulic system
This mechanism allows actuators to be operated
in proportion to the current supplied.
FOPS
Falling Object Protective
Structure
Cab and canopy
This structure protects the operator's head from
falling objects.
This performance is standardized as ISO 3449.
F-N-R
Forward-Neutral-Re-
verse
Operation
Forward - Neutral - Reverse
GPS
Global Positioning Sys-
tem
Communication
Global Positioning System: This system uses sat-
ellites to determine the current location on the
earth.
(KOMTRAX, KOMTRAX
Plus)
GNSS
Global Navigation Satel-
lite System
Communication
Global Navigation Satellite System: This system
uses satellites such as GPS, GALILEO, etc. to
determine the current location on the earth.
(KOMTRAX, KOMTRAX
Plus)
HSS
Hydrostatic Steering
System
Steering
This function uses a combination of hydraulic
motor and bevel shaft to control difference in
travel speed of right and left tracks. Accordingly
machine can turn without using steering clutch.
(D)
HST
Hydro Static Transmis-
sion
Transmission
This function uses a combination of hydraulic
pump and hydraulic motor for stepless shifting of
the speed range without using gears.
(D, WA)
ICT
Information and Com-
munication Technology
Communication and elec-
tronic control
A general term for the engineering and its social-
ly applied technology of information processing
and communication.
IMA
Inlet Metering Actuator
Engine
This valve is installed at inlet port of pump, and it
adjusts fuel intake amount in order to control fuel
discharged volume of supply pump. (Same as
IMV)
ABBREVIATION LIST
00 INDEX AND FOREWORD
00-20
PC290LL-11
