Boom Head
AssemblyBoom point holding the hoist rope sheaves and the topping rope anchor. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Boom Head
4 top-level lines as of r45007| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Load Sheave | derrick-crane-load-sheave | 3× | 3 | · | part |
| 2 | Sheave Axle Pin | derrick-crane-sheave-pin | 1× | 1 | · | part |
| 3 | Ball Bearing | ball-bearing | 6× | 6 | · | part |
| 4 | Rope Guard | derrick-crane-rope-guard | 2× | 2 | · | part |