Operation
SY115C9/135C/155H Crawler Hydraulic Excavator
4-2
Safety, Operation and Maintenance Manual - Sep 2012
4.4.2 Moving the machine forward ........................................................................ 4-29
4.4.3 Moving the machine backward .................................................................... 4-30
4.4.4 Parking the machine .................................................................................... 4-31
4.5 Steering Operation................................................................................................. 4-32
4.5.4.1 Steering with travel controls ............................................................... 4-32
4.5.4.2 Steering with machine stopped ........................................................... 4-32
4.5.4.3 Steering during traveling ..................................................................... 4-33
4.5.4.4 Pivot turn ............................................................................................. 4-33
4.5.1 Swing operation ........................................................................................... 4-34
4.6 Work Equipment Control and Operation ................................................................ 4-35
4.7 Working mode ........................................................................................................ 4-37
4.8 Restricted Operations ............................................................................................ 4-38
4.8.1 Operation with swinging force ...................................................................... 4-38
4.8.2 Operation with traveling force ...................................................................... 4-38
4.8.3 Operation when hydraulic cylinder reaches its stroke end ......................... 4-39
4.8.4 Operation with bucket landing force............................................................. 4-39
4.8.5 Operation with machine weight .................................................................... 4-40
4.8.6 Hard rocky ground ...................................................................................... 4-40
4.8.7 Sudden shift of travel speed during fast traveling ....................................... 4-41
4.9 General Operation ................................................................................................ 4-41
4.9.1 Traveling operation ...................................................................................... 4-41
4.9.2 High-speed travel ......................................................................................... 4-41
4.9.3 Permissible depth of water........................................................................... 4-42
4.10 Traveling on Slope ............................................................................................... 4-42
4.10.1 Traveling downhill ..................................................................................... 4-44
4.10.2 Engine stalls on an incline ......................................................................... 4-44
4.10.3 Cab door on an incline ............................................................................... 4-44
4.11 Removing Machine from Mud .............................................................................. 4-44
4.11.1 One track trapped ...................................................................................... 4-44
4.11.2 Both tracks trapped .................................................................................... 4-45
4.12 Recommended Applications ................................................................................ 4-45
4.12.1 Backhoe operation ..................................................................................... 4-45
4.12.2 Trench work ............................................................................................... 4-46
4.12.3 Loading operation ...................................................................................... 4-46
4.13 Parking Operation ................................................................................................ 4-47
4.14 Checks after Each Workday ................................................................................ 4-49