Crawler Undercarriage
AssemblyExtendable tracked base that carries and stabilises the rig. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Crawler Undercarriage
6 top-level lines as of r27259| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Track Frame | cfa-piling-rig-track-frame | 2× | 2 | · | part |
| 2 | Track Chain 4 parts | cfa-piling-rig-track-chain | 2× | 2 | 0 | assembly |
| 3 | Track Drive Unit 5 parts | cfa-piling-rig-track-drive | 2× | 2 | 0 | assembly |
| 4 | Track Gauge Cylinder | cfa-piling-rig-track-extend-cylinder | 2× | 2 | · | part |
| 5 | Counterweight | cfa-piling-rig-counterweight | 1× | 1 | · | part |
| 6 | Fastener Set | fastener-set | 4× | 4 | · | part |