Komatsu PC500LC-10R Shop Manual page 12

ABBREVIATION LIST
Abbrevia-
Actual word spelled out
tion
Tip-Over Protective
TOPS
Structure
TWV 2-Way Valve
Variable Geometry Tur-
VGT
bocharger
Variable Horse Power
VHPC
Control
*1: Code for applicable machine model
D: Bulldozer
HD: Dump truck
HM: Articulate dump truck
PC: Hydraulic excavator
WA: Wheel loader
List of abbreviations used in the circuit diagrams
Abbreviation
A/C Air Conditioner
A/D Analogue-to-Digital
A/M Air Mix Damper
ACC Accessory
ADD Additional
AUX Auxiliary
BR Battery Relay
CW Clockwise
CCW Counter Clockwise
ECU Electronic Control Unit
ECM Electronic Control Module
ENG Engine
EXGND External Ground
F.G. Frame Ground
GND Ground
IMA Inlet Metering Actuator
NC No Connection
00-10
Purpose of use (major ap-
plicable machine (*1), or
component/system)
Cab and canopy
Hydraulic system
Engine
Engine control
Actual word spelled out
00 INDEX AND FOREWORD
Explanation
This is a protective structure that intended to pro-
tect the operator wearing seat belt from suffering
injury which may be caused if the cab is crushed
when the machine tips over. (Roll-over protective
structure of hydraulic excavator)
This performance is standardized as ISO 12117.
This is a solenoid valve that switches over direc-
tion of flow.
This is a turbocharger on which the cross-section
area of the exhaust passage is variable.
This is a function that finely controls the maxi-
mum output of the machine so that high work effi-
ciency and low fuel consumption rate are both
achieved.
PC500LC-10R