New Holland E305B User manual

CONSTRUCTION
SERVICE MANUAL
E265B
E305B
Crawler Excavators ROPS Tier III
Print No. 84392423A
1st Edition
English 12/10

WARNING
Read this manual before operating the machine
Most accidents occurring during work are due to non-observance of simple safety norms and elementary
precautions.
Many accidents can be avoided if the causes are known and opportune cautions taken beforehand.
There is no device or protection, no matter how advanced, that may prove so effective at avoiding accidents
as a careful and attentive behaviour.
WARNING
Ensure that the attachment is safely resting onto the ground before repairing, adjusting or servicing machines
fitted with hydraulically, mechanically or cable controlled attachments (such as, excavators, loaders, dozers,
scrapers, etc.). Should it be necessary to partially or fully raise the hydraulically, mechanically or cable
controlled attachment to gain access to certain items, make sure the attachment is adequately retained in the
raised position by means other than the hydraulic lift cylinders, cables and/or mechanical devices used for
controlling it.
COPYRIGHT BY NEW HOLLAND KOBELCO CONSTRUCTION MACHINERY S.p.A.
Product Support
Strada di Settimo, 323 - S. MAURO T.SE ( TO ) ITALY
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IN - 1
INTRODUCTION E265B-E305B
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:
NEW HOLLAND KOBELCO
CONSTRUCTION MACHINERY S.p.A.
Strada Settimo, 323
San Mauro Torinese (TO)
10099 ITALIA
PRODUCT SUPPORT
Fax. ++39 011 0077357
ADDITIONAL REFERENCES
• Please refer to the materials listed below in
addition to this service manual:
- Operation and Maintenance Instruction
Manual
-PartsCatalog
WORKSHOP MANUAL COMPOSITION
• The Workshop Manual consists of five parts:
- “Safety Precautions”
- “Operational Principle”
- “Operational Performance Test”
- “Troubleshouting”
- “Repair Instructions”
- The “Safety Precaution” part includes the
recommended procedures that, if followed, can
avoid the risk of accident for operator and for staff
related to the work and maintenance machine
operations.
- The “Operational Principle” part includes the
technical information concerning the operation of
main devices and systems.
- The “Operational Performance Test” part includes
the information needed to carry out the machine
operational performance test.
- The “Troubleshooting” part includes the technical
information needed for troubleshooting and
malfunction detection.
- The “Repair Instruction” part includes information
needed for maintenance and repair of the
machine, tools and devices needed for
maintenance and repair, maintenance standards,
removal/installation and assembly/disassembly
procedures.
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E265B-E305B INTRODUCTION
IN - 2
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)
A table for conversion from SI units to other system units is shown below for reference purposes.
Quantity To convert from
(SI)
Into
(Others)
Multiply by Quantity To convert from
(SI)
Into
(Others)
Multiply by
Lenght mm in 0.03937 Pressure MPa kgf/cm210.197
mm ft 0.003281 MPa psi 145.0
Volume L US gal 0.2642 Power kW CV-PS 1.360
L US qt 1.057 kW HP 1.341
m3yd31.308 Temperature °C °F °C x 1.8 + 32
Mass kg lb 2.205 Velocity km/h mph 0.6214
Force N kgf 0.10197 min-1 rpm 1.0
N lbf 0.2248 Flow rate L/min US gpm 0.2642
Torque N.m kgf.m 0.10197 mL/rev cc/rev 1.0
N.m lbf.ft 0.7375
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INDEX E265B-E305B
MANUAL INDEX
SAFETY PRECAUTIONS Page
Section 1 GENERALITIES ..................................................................... S1
Section 2 SAFETY PRECAUTIONS ...................................................... S2
Section 3 SAFETY PLATES .................................................................. S3
OPERATIONAL PRINCIPLE
Section 1 GENERAL
Group 1 Specifications................................................................................. T1-1
Section 2 SYSTEM
Group 1 Mechatro control system................................................................ T2-1
Group 2 Hydraulic System........................................................................... T2-2
Group 3 Electrical System ........................................................................... T2-3
Section 3 COMPONENT OPERATION
Group 1 Hydraulic Pump Assy..................................................................... T3-1
Group 2 Pilot Valve ...................................................................................... T3-2
Group 3 Control Valve ................................................................................. T3-3
Group 4 Swing Device ................................................................................. T3-4
Group 5 Travel Device ................................................................................. T3-5
Group 6 Swivel Joint.................................................................................... T3-6
Group 7 Cylinders........................................................................................ T3-7
Group 8 Air Conditioner system................................................................... T3-8
OPERATIONAL PERFORMANCE TEST
Section 4 OPERATIONAL PERFORMANCE TEST
Group 1 Introduction ................................................................................... T4-1
Group 2 Standard Performances ................................................................. T4-2
Group 3 Test Procedures ............................................................................ T4-3
Group 4 Mechatro Controller ....................................................................... T4-4
TROUBLESHOOTING
Section 5 TROUBLESHOOTING
Group 1 Troubleshooting (by error codes)................................................... T5-1
Group 2 Troubleshooting (by trouble) .......................................................... T5-2
Group 3 Troubleshooting (trouble diagnosis mode)..................................... T5-3
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E265B-E305B INDEX
REPAIR INSTRUCTIONS
Section 1 GENERAL INFORMATION
Group 1 Precautions for Disassembly and Assembly.................................W1-1
Group 2 Tightening Torque ........................................................................W1-2
Section 2 UPPERSTRUCTURE
Group 1 Upperstructure ..............................................................................W2-1
Group 2 Pump Device.................................................................................W2-2
Group 3 Control Valve ................................................................................W2-3
Group 4 Swing Device ...............................................................................W2-4
Group 5 Pilot Valve .....................................................................................W2-5
Section 3 UNDERCARRIAGE
Group 1 Swing Bearing ..............................................................................W3-1
Group 2 Travel Device ...............................................................................W3-2
Group 3 Swivel Joint ..................................................................................W3-3
Group 4 Track Adjuster ..............................................................................W3-4
Group 5 Front Idler .....................................................................................W3-5
Group 6 Upper and Lower Roller ...............................................................W3-6
Group 7 Tracks ...........................................................................................W3-7
Section 4 FRONT ATTACHMENT
Group 1 Front attachment...........................................................................W4-1
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SAFETY PRECAUTIONS
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SAFETY PRECAUTIONS E265B-E305B
INDEX
Section 1 GENERALITIES
Section 2 SAFETY PRECAUTIONS
Section 3 SAFETY PLATES
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