Komatsu PC500LC-10R Shop Manual page 11

00 INDEX AND FOREWORD
Abbrevia-
Actual word spelled out
tion
Multimedia Messaging
MMS
Service
NC Normally Closed
NO Normally Open
Open-center Load
OLSS
Sensing System
PC Pressure Compensation Hydraulic system
Palm command control
PCCS
system
PCV Pre-stroke Control Valve Engine
Proportional Pressure
PPC
Control
PPM Piston Pump and Motor
PTO Power Take Off
Power Tilt and power
PTP
Pitch dozer
Roll-Over Protective
ROPS
Structure
Selective Catalytic Re-
SCR
duction
Le Systeme Internation-
SI al d' Unites (Internation-
al unit system)
SOL Solenoid
PC500LC-10R
Purpose of use (major ap-
plicable machine (*1), or
component/system)
Communication
Electrical system, hydraulic
system
Electrical system, hydraulic
system
Hydraulic system
Steering
(D Series)
Hydraulic system
Hydraulic system
(D, PC, etc)
Power train system
Work equipment
(D Series)
Cab and canopy
Urea SCR system
Unit
Electrical system
Explanation
This is a service that allows transmission and re-
ception of short messages consisting of charac-
ters or voice or images between cell phones.
This is a characteristic of electrical or hydraulic
circuits. Circuit is normally closed if it is not actu-
ated, and it opens when it is actuated.
This is a characteristic of electrical or hydraulic
circuits. Circuit is normally open if it is not actuat-
ed, and it closes when it is actuated.
This is a hydraulic system that can operate multi-
ple actuators at the same time regardless of the
load.
This is a function that corrects the oil pressure.
This is a function that electrically controls the en-
gine and transmission in an optimal way with the
controller instantly analyzing data from levers,
pedals, and dials.
This is a valve that adjusts the fuel intake amount
at the pump inlet in order to control fuel dis-
charged volume of supply pump.
This is a system that operates actuators in pro-
portion to the oil pressure.
Piston type hydraulic pump and motor.
Power take-off mechanism
This is a function that performs hydraulic control
of the tilt and pitch of the dozer blade of the bull-
dozer.
ROPS is a protective structure that intended to
protect the operator wearing seat belt from suffer-
ing injury which may be caused if the cab is
crushed when the machine rolls over. (Roll-over
protective structure)
This performance is standardized as ISO 3471 or
ISO 12117-2.
This is an exhaust gas purifier using urea water
that converts nitrogen oxides (NOx) into harm-
less nitrogen and water by oxidation-reduction re-
action. It may also be mentioned as exhaust gas
purification catalyst or part of the name of related
devices.
Abbreviation for "International System of Units" It
is the universal unit system and "a single unit for
a single quantity" is the basic principle applied.
This is an actuator that consists of a solenoid and
an iron core that is operated by the magnetic
force when the solenoid is energized.
ABBREVIATION LIST
00-9