Download Fiat-Hitachi Excavator EX455 Operational Principle Technical Manual 60413001 PDF (English) 

Download the official Fiat-Hitachi Excavator EX455 Operational Principle Technical Manual (Part No. 60413001) in digital PDF format. This specialized engineering guide is designed for professional mechanics, technicians, and engineers seeking an in-depth understanding of system operations, hydraulic flows, electrical circuits, and component functions for the Fiat-Hitachi EX455 crawler excavator. Featuring detailed schematics, functional descriptions, and comprehensive technical theory. www.themanualsgroup.com

MODEL COVERED :
Fiat-Hitachi EX455 Excavator

CONTENTS INCLUDED :
Section 1 Ex455 General
Group 1 – Specifications
Excavator Dimensions (Lch Version)
Excavator Dimensions (Beh Version)
Excavator Performance
Engine Accessory
Electrical Equipment
Group 2 – Component Layout
Main Components
Electrical System (1) (Overall System)
Electrical System (2) (Monitor And Switch Panels)
Electrical System (3) (Relays, Diodes, Etc) {
Electrical System (4) (Relays, Batteries, Fuses)
Electrical System (5) (Fuses)
Other Components Pump Device 1
Section 2 Ex455 System
Group 1 –
Control System
Outline
Engine Control
Pump Control
Valve Control
Other Control
Group 2 –
Hydraulic System
Outline
Main Circuit
Pilot Circuit
Group 3 –
Electrical System
Outline
Power Circuit
Bulb Check Circuit
Preheat Circuit
Engine Start Circuit
Charging Circuit
Accessory Circuit
Surge Voltage Prevention Circuit
Engine Stop Circuit
Section 3 Ex455 Component Operation
Group 1 – Pump Device
Outline
Main Pump
Regulator
Pilot Pump
N Sensor (Engine Speed Sensor)
P Sensor (Pump Delivery Pressure Sensor)
A Sensor (Pump Displacement Angle Sensor)
Group 2 – Swing Device
Outline
Swing Motor
Valve Unit
Swing Parking Brake
Swing Reduction Gear
Group 3 – Control Valve
Outline
Hydraulic Circuits
Flow Combiner Valve
Pump Control Valve
Main Relief Valve
Overload Relief Valve (With Make-Up Function)
Make-Up Valve
Holding Valve
Arm Regenerative Valve
Group 4 – Pilot Valve
Outline
Operation
Group 5 -Travel Device
Outline
Travel Reduction Gear
Travel Motor
Travel Brake Valve
Travel Motor Displacement Angle Shift
Parking Brake
Group 6 – Other Components (Upperstructure)
Pilot Shut-Off Valve
Shockless Valves
Solenoid Valve
Accumulator
Ec Motor
Group 7 -Other Components (Undercarriage)
Swing Bearing
Center Joint
Track Adjuster

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