Counterbalance System
AssemblyHydro-pneumatic counterbalance cushioning thread engagement and supporting the quill weight during stabbing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Counterbalance System
3 top-level lines as of r50256| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Hydraulic Cylinder | drilling-top-drive-hyd-cylinder | 2× | 2 | · | part |
| 2 | Counterbalance Accumulator | drilling-top-drive-accumulator | 1× | 1 | · | part |
| 3 | O-Ring Set | oring-set | 1× | 1 | · | part |