Komatsu PC88MR-10 Shop Manual page 59

Abbrevia- Actual word spelled
tion out
Proportional Pressure
PPC
Control
Piston Pump and
PPM
Motor
PTO Power Take Off
Power Tilt and power
PTP
Pitch dozer
Roll-Over Protective
ROPS
Structure
Le Systeme
International d Unites
SI
(International unit
system)
SOL Solenoid
2-Way Valve
TWV
*1: Code for applicable machine family
D: Bulldozer
HD: Dump truck
HM: Articulated dump truck
PC: Hydraulic excavator
WA: Wheel loader
List of abbreviations used in the circuit diagrams
Abbreviation
A/C Air Conditioner
Analogue-to-Digital
A/D
Air Mix Damper
A/M
Accessory
ACC
ADD Additional
Auxiliary
AUX
Battery Relay
BR
CW Clockwise
CCW Counter Clockwise
ECU Electronic Control Unit
ECM Electronic Control Module
Engine
ENG
EXGND External Ground
F.G. Frame Ground
GND Ground
Inlet Metering Actuator
IMA
NC No Connection
S/T
Steering
STRG
PC88MR-10
Purpose of use (major
applicable machine (*), or
equipment/device)
Hydraulic system
Hydraulic system
(D, PC, etc.)
Power transmission
Work equipment
(D)
Cab and canopy
Unit
Electric system
Hydraulic and electric
systems
Actual word spelled out
00 Index and foreword
Foreword, safety and general information
Explanation
Used for controlling proportional pressure.
This system moves actuators in proportion to
the oil pressure.
Piston pump and motor.
Power take-off mechanism
This function performs hydraulic control of the
tilt and pitch of the bulldozer blade.
If a machine tips over, this structure protects
the operator with the seat belt fastened from
being crushed. (Operator Protective Structure
When Tipping)
This performance is standardized as ISO
3471.
Abbreviation for the "International System of
Units". It is the universal unit system and "a
single unit for a single quantity" is the basic
principle applied.
It refers to an actuator consisting of a solenoid
and an iron core that is moved by the
magnetic force when the solenoid is
energized.
Solenoid valve that switches over direction of
flow.
00-57