IMT 4004i - Page 4

Oshkosh Corporation Classification: Unrestricted
ii Contents
Crane Shut Down ........................................................................................................................................ 33
Operation in Poor Conditions ..................................................................................................................... 33
Hand Signals ............................................................................................................................................... 34
Maintenance & Repair 37
Maintenance Introduction ........................................................................................................................... 38
Electric Crane Power Safety ....................................................................................................................... 38
Maintenance Schedule ................................................................................................................................ 39
Electric Crane Lubrication .......................................................................................................................... 39
Grease Zerks ............................................................................................................................................... 40
Crane Hydraulic Oil Specifications ............................................................................................................ 40
Electric Crane Power Unit Components ..................................................................................................... 41
Power Unit Troubleshooting ....................................................................................................................... 43
Purging Air from Hydraulic System ........................................................................................................... 44
Hydraulic Pressure Relief ........................................................................................................................... 44
Hydraulic Cylinder Holding Capability ...................................................................................................... 44
Pin Removal & Inspection .......................................................................................................................... 45
Electric Crane Wear Pads ........................................................................................................................... 46
Wire Rope Inspection ................................................................................................................................. 47
Wire Rope Lubrication ............................................................................................................................... 48
Wire Rope Maintenance ............................................................................................................................. 48
Wire Rope Inspection & Replacement........................................................................................................ 48
Wire Rope Lay ............................................................................................................................................ 50
Additional Inspections ................................................................................................................................ 50
Excessive Load Limitation System ............................................................................................................. 52
Excessive Load Limitation System (ELLS) Testing ....................................................................... 52
ELLS Troubleshooting Procedure ................................................................................................... 53
Stability Test 55
Crane Stability ............................................................................................................................................ 56
Stability Chart ............................................................................................................................................. 58