Maeda MC405C-3 - Page 6

Table of Contents Mini-Crawler Crane M A E D A
iv 1/2019 MC405C-3
Outrigger Setting Precautions ................................................................................ 4-42
Tasks to Be Performed upon Engine Stop ............................................................. 4-44
Tasks to Be Performed after Starting Engine ......................................................... 4-46
Outrigger Extension Modes .................................................................................... 4-48
Outrigger Maximum Extension .......................................................................... 4-48
Outrigger Medium Extension ............................................................................. 4-48
Outrigger Minimum Extension ........................................................................... 4-49
OUTRIGGER STOWING ................................................................................................. 4-49
Tasks to Be Performed after Starting Engine ......................................................... 4-50
Tasks to Be Performed upon Engine Stop ............................................................. 4-52
WORKING WITH CRANE ................................................................................................ 4-53
CRANE OPERATION ....................................................................................................... 4-60
Dos and Don’ts During Crane Operations .............................................................. 4-60
Before Crane Operations ........................................................................................ 4-62
Crane Operation Posture ........................................................................................ 4-63
Hook Raising/Lowering Operation .......................................................................... 4-63
Boom Derricking Operation .................................................................................... 4-64
Boom Telescoping Operation ................................................................................. 4-64
Slewing Operation .................................................................................................. 4-65
Acceleration Operation ........................................................................................... 4-65
Crane Stowing Operation ....................................................................................... 4-66
MOMENT LIMITER (OVERLOAD DETECTOR) .............................................................. 4-68
Moment Limiter Features ........................................................................................ 4-68
Function of Moment Limiter .................................................................................... 4-69
Mechanism of Moment Limiter ........................................................................... 4-69
Display of Moment Limiter Error Messages ....................................................... 4-69
Moment Limiter Operations .................................................................................... 4-70
Prohibited Actions After Auto Stop .................................................................... 4-70
Recovery Operation After Auto Stop ................................................................. 4-70
Moment Limiter Display .......................................................................................... 4-72
Descriptions of Switches on Moment Limiter Display ............................................. 4-73
Wire Falls Selector Switch and Wire Falls Display LED (Blue) ......................... 4-73
Boom Angle Upper Limit Switch and LED (Orange) .......................................... 4-73
Boom Angle Lower Limit Switch and LED (Orange) .......................................... 4-74
Working Radius Upper Limit Switch and LED (Orange) .................................... 4-74
Lifting Height Upper Limit Switch and LED (Orange) ........................................ 4-75
Cancel Switch .................................................................................................... 4-75
Check Switch ..................................................................................................... 4-75
Descriptions of Moment Limiter Display ................................................................. 4-76
Actual Load Display Section .............................................................................. 4-76
Rated Total Load Display Section ................................
..................................... 4-76
Working Radius Display Section ........................................................................ 4-77
Boom Length Display Section ............................................................................ 4-77
Lifting Height Display Section ............................................................................ 4-77
Boom Angle Display Section ............................................................................. 4-77
Over Winding LED (Red) ................................................................................... 4-77
Outrigger Extension LED (Blue) ........................................................................ 4-77