Lower Boom & Riser
AssemblyFirst boom section that lifts the knuckle joint off the turntable, raised by a master lift cylinder and held parallel by a riser linkage. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Lower Boom & Riser
6 top-level lines as of r6369| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Lower Boom Section | articulating-boom-lift-lower-boom-section | 1× | 1 | · | part |
| 2 | Riser Parallel Linkage | articulating-boom-lift-riser-link | 1× | 1 | · | part |
| 3 | Lower Lift Cylinder | articulating-boom-lift-lift-cylinder | 1× | 1 | · | part |
| 4 | Boom Pivot Pin | articulating-boom-lift-lower-boom-pin | 2× | 2 | · | part |
| 5 | Boom Pivot Bushing | articulating-boom-lift-boom-bushing | 4× | 4 | · | part |
| 6 | O-Ring Set | oring-set | 2× | 2 | · | part |