Table of Contents
Safety, Operation and Maintenance Manual - Aug 2012IV
SY115C9/135C/155H Crawler Hydraulic Excavator
2.4.6 Lifting objects with the machine ................................................................... 2-56
2.5 Precautions for Maintenance ................................................................................. 2-57
2.5.1 Prior-maintenance precautions .................................................................... 2-57
2.5.2 Select a working area .................................................................................. 2-57
2.5.3 Preparing the machine ................................................................................ 2-58
2.5.4 Preparing yourself ........................................................................................ 2-59
2.5.5 Lock-out and tag-out .................................................................................. 2-60
2.5.6 Using proper tools ........................................................................................ 2-60
2.5.7 Maintenance with engine running ................................................................ 2-61
2.5.8 Working under the machine ......................................................................... 2-61
2.5.9 Track maintenance....................................................................................... 2-62
2.5.10 Track tension adjustment precautions ....................................................... 2-63
2.5.11 Recoil spring .............................................................................................. 2-63
2.5.12 Welding operation ...................................................................................... 2-64
2.5.13 High-pressure hoses .................................................................................. 2-64
2.5.14 Pressurized fl uid ........................................................................................ 2-65
2.5.15 Hot cooling system..................................................................................... 2-66
2.5.16 Air-conditioning system ............................................................................. 2-66
2.5.17 High voltage precautions ........................................................................... 2-67
2.5.18 Accumulator ............................................................................................... 2-67
2.5.19 Avoiding fi re and explosion ........................................................................ 2-68
2.5.20 Regular replacement of safety-related parts .............................................. 2-69
2.5.21 Maintenance operation ............................................................................. 2-70
2.5.22 Proper disposal of wastes .......................................................................... 2-71
3 System Functions
3.1 Machine Overview ................................................................................................... 3-5
3.2 Machine Controls ..................................................................................................... 3-6
3.3 Monitor ..................................................................................................................... 3-7
3.3.1 Monitor introduction ....................................................................................... 3-7
3.3.2 System information and operation ............................................................... 3-10
3.3.2.1 Main Page ........................................................................................... 3-10
3.3.2.2 System Information ............................................................................. 3-12
3.3.2.3 Time Setup .......................................................................................... 3-13
3.3.2.4 Main Menu .......................................................................................... 3-14
3.3.2.5 Engine & Throttle Signals .................................................................. 3-15
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