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Water Box & Front Shank Assembly for Montabert HC20 Hydraulic Drifter
This assembly includes the water box, front cover, retainer shank, spline shank, seal holder ring, roller thrust, lip seals, O-rings, adaptor, plug, rings and fastening screws for the Montabert HC20 hydraulic drifter. These components form the front tool-retention and flushing section of the drifter, supporting secure shank positioning, efficient transfer of rotary motion and controlled delivery of flushing water. Reliable sealing and correct assembly help prevent fluid leakage, reduce component wear and maintain consistent drilling performance.
Assembly Components
| Item | Part No. | Name | Qty | Remarks |
|---|---|---|---|---|
| 10 | 86668761 | Water Box | 1 | Flushing water housing |
| 20 | 86737533 | Ring | 1 | Water box ring |
| 30 | 96718499 | M8 Screw | 1 | Fastening screw |
| 40 | 86668928 | UNF 1/2" Hexagonal Screw | 8 | Tightening torque: 90 Nm / 66 ft.lb |
| 50 | 95303335 | Adaptor | 1 | Water connection adaptor |
| 60 | 86262698 | Lip Seal | 2 | Water box sealing element |
| 70 | 86731726 | Front Cover | 1 | Tightening torque: 850 Nm / 627 ft.lb |
| 80 | 86267069 | O-ring | 2 | Hydraulic sealing ring |
| 90 | 86684271 | Seal | 1 | Front section sealing element |
| 100 | 86668829 | Retainer Shank | 1 | Drilling tool retaining component |
| 110 | 86732526 | O-ring | 1 | Hydraulic sealing ring |
| 120 | 86677192 | Spline Shank | 1 | Rotary transmission component |
| 130 | 86668811 | Seal Holder Ring | 1 | Seal retaining component |
| 140 | 86668944 | Dual Seal | 1 | Combined sealing element |
| 150 | 86676822 | Roller Thrust | 1 | Axial load support component |
| 160 | 86625175 | Lip Seal | 1 | Shank sealing element |
| 170 | 86668951 | Lip Seal | 1 | Shank sealing element |
| 180 | 86676889 | Ring | 1 | Support ring |
| 190 | 86676897 | Ring | 1 | Retaining ring |
| 200 | 86247723 | Plug | 1 | Connection port plug |
Contact us for pricing, availability and technical assistance regarding water boxes, front covers, retainer shanks, spline shanks, roller thrust components, seals, rings, adaptors and spare parts for the Montabert HC20 hydraulic drifter.