Fiat Kobelco EX355 Tier2 User manual
FIAT KOBELCO CONSTRUCTION MACHINERY S.p.A. - ENGINEERING -
FORM No. 604.13.206 - Edition - July 2002
EXCAVATOR
TECHNICAL MANUAL
OPERATIONAL PRINCIPLE
(Tier 2)
All information, illustrations and specifications in this manual are based on the latest product information available
at the time of publication.
The right is reserved to make changes at any time without notice.
EX355 IN-1
INTRODUCTION
TO THE READER
• This manual is written for an experienced technician
to provide technical information needed to maintain
and repair this machine.
- Be sure to thoroughly read this manual for correct
information concerning the service procedures.
- If you have any questions or comments, or if you
found any errors regarding the contents of this
manual, please contact:
FIAT KOBELCO CONSTRUCTION
MACHINERY S.p.A.
Strada Settimo, 323
San Mauro Torinese (TO)
10099 ITALY
PRODUCT SUPPORT
Fax. ++39 011 6877357
BOOK PRINT NUMBER
- Technical Manual - Operational Principle 604.13.206
- Technical Manual - Troubleshooting 604.13.211
- Workshop Manual 604.13.216
SERVICE MANUAL COMPOSITION
• The complete service manual consists of three
books:
- Technical Manual - Operational Principle
-Technical Manual - Troubleshooting
-Workshop Manual
- The Technical Manual - Operational Principle in-
cludes the technical information concerning the
operation of main devices and systems.
- The Technical Manual -Troubleshooting includes
the technical information needed for operational
performance tests, and troubleshooting procedures.
- The Workshop Manual includes information needed
for maintenance and repair of the machine, tools and
devices needed for maintenance and repair, mainte-
nance standards, removal/installation and assem-
bly/disassembly procedures.
• The Service Manual for EX355 Excavator consists
of the following book/print numbers:
ADDITIONAL REFERENCES
• Please refer to the materials listed below in addition
to this service manual:
-Operation and Maintenance Instruction
Manual
-Parts Catalog
IN-2 EX355
INTRODUCTION
To To
Quantity convert Into Multiply by Quantity convert Into Multiply by
from (SI) (Others) from (SI) (Others)
Lenght mm in 0.039 37 Pressure MPa kgf/cm210.197
mm ft 0.003 281 MPa psi 145.0
L US gal 0.264 2 Power kW CV-PS 1.360
Volume L US qt 1.057 kW HP 1.341
m3yd31.308 Temperature °C °F °C x 1.8 + 32
Weight Kg lb 2.205 Velocity Km/h mph 0.621 4
Force N kgf 0.101 97 min-1 rpm 1.0
N lbf 0.224 8 Flow rate L/min US gpm 0.264 2
Torque N.m Kgf.m 0.10197 ML/rev Cc/rev 1.0
N.m lbf.ft 0.737 5
PAGE NUMBER
• Each page has a number, located on the external upper corner of the page. Each page number contains the
following information:
Example: T 1-2-3
Consecutive page number for each group
Group number (if exist)
Section number
T: Technical Manual
W: Workshop Manual
SYMBOLS
In this manual, the following safety alert symbol and signal words are used to alert the reader to the potential for
personal injury or machine damage.
This is the safety alert symbol.
When you see this symbol, be alert to the potential for personal injury.
Never fail to follow the safety instructions prescribed along with the safety alert symbol.
The safety alert symbol is also used to draw attentio in to component/part weights.
To avoid injury and damage, be sure to use appropriate lifting techniques and equipment when lifting heavy
parts.
UNITS USED
SI Units (International System of Units) are used in this manual.
MKSA system units and English units are also indicated in parentheses just behinds SI units.
Example: 24.5 MPa (250 kgf/cm2, 3560 psi)
A table for conversion from SI units to other system units is shown below for reference purposes.
Section 3 - COMPONENT OPERATION
Group 1 Pump Device
Group 2 Swing Device
Group 3 Control Valve
Group 4 Pilot Valve
Group 5 Travel Device
Group 6 Other components (Upperstructure)
Group 7 Other components (Undercarriage)
TECHNICAL MANUAL EX355
OPERATIONAL PRINCIPLE
SECTION AND GROUP CONTENTS
Section 1 - GENERAL
Group 1 Specifications
Group 2 Component Layout
Section 2 - SYSTEM
Group 1 Control System
Group 2 Hydraulic System
Group 3 Electrical System
Table of contents
