Undercarriage
AssemblyWelded track-frame base with two driven crawler tracks. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Undercarriage
15 top-level lines as of r193042| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Track Frame | excavator-track-frame | 2× | 2 | · | part |
| 2 | Track Chain 4 parts | excavator-track-chain | 2× | 2 | 0 | assembly |
| 3 | Drive Sprocket | excavator-sprocket | 2× | 2 | · | part |
| 4 | Front Idler | excavator-idler | 2× | 2 | · | part |
| 5 | Track Roller | excavator-track-roller | 14× | 14 | · | part |
| 6 | Carrier Roller | excavator-carrier-roller | 4× | 4 | · | part |
| 7 | Track Tension Cylinder 4 parts | excavator-track-tension-cylinder | 2× | 2 | 0 | assembly |
| 8 | Final Drive 5 parts | excavator-final-drive | 2× | 2 | 0 | assembly |
| 9 | Track Shoe Bolt & Nut | excavator-track-bolt | 400× | 400 | · | part |
| 10 | Roller Mounting Bolt | excavator-roller-bolt | 144× | 144 | · | part |
| 11 | Track Guard | excavator-track-guard | 4× | 4 | · | part |
| 12 | Grease Fitting | excavator-grease-fitting | 24× | 24 | · | part |
| 13 | Final Drive Bolt | excavator-final-drive-bolt | 48× | 48 | · | part |
| 14 | Hex Bolt | excavator-hex-bolt | 200× | 200 | · | part |
| 15 | Hex Nut | excavator-hex-nut | 120× | 120 | · | part |