NEW HOLLAND E485B HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL

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Print No. 87475986A
Edition – March 2008

Manual Type: Service Manual
Total Pages: 1030

Models Covered:

E485B

Manual Contents:

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
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
Section 5 ENGINE
Group 1 General …………………………………………………………………………….W5-1
Group 2 Standard Value …………………………………………………………………..W5-2
Group 3 Parts to be prepared …………………………………………………………..W5-3
Group 4 Engine assembly/disassembly ……………………………………………..W5-4
Group 5 Fuel System ………………………………………………………………………W5-5
Group 6 Emission Control ………………………………………………………………..W5-6
Group 7 Electrical ……………………………………………………………………………W5-7
Group 8 Intake ………………………………………………………………………………..W5-8
Group 9 Engine Mechanical ……………………………………………………………..W5-9
Group 10 Exhaust …………………………………………………………………………..W5-10
Group 11 Cooling ……………………………………………………………………………W5-11
Group 12 Lubrication ………………………………………………………………………W5-12
Group 13 Starting and Charging ……………………………………………………….W5-13
Group 14 Turbocharger ……………………………………………………………………W5-14
Group 15 Failure Diagnosis for each Engine Status …………………………….W5-15
Group 16 Engine Diagnosis Code …………………………………………………….W5-16