• Part No.: 86785946
• Part Weight:
• Product Name: O_ring (Hydraulic Rock Drill Large-Diameter O-Ring)
• Applicable Eqpt: Montabert HC28 Hydraulic Rock Drill/Drifter
• Replacement: Mandatory after 800h impact operation
• Core Advantages: Genuine OEM, Short Delivery, Competitive Price
• Key Function: Seals large-diameter interfaces (e.g., cylinder covers), preventing oil leakage
The O_ring 86785946 for HC28 Hydraulic Rock Drills seals large interfaces. Generic large O-rings have uneven cross-section (20% leak rate); this OEM O-ring has consistent 5mm cross-section, NBR material, 800h compression set ≤15%, sealing cylinder covers effectively.
| Model | Part No. | Description | Weight/Kg | Qty. | Unit | Replacement Part No. | |||
|---|---|---|---|---|---|---|---|---|---|
| HC28 | 86780483 | 200 hours Service kits | 1 | pcs | |||||
| HC28 | 86780491 | 400 hours Service kits | 1 | pcs | |||||
| HC28 | 86780509 | 800 hours Service kits | 1 | pcs | |||||
| HC28 | 86780517 | 1600 hours Service kits | 1 | pcs | |||||
| HC28 | 86780525 | 3200 hours Service kits | 1 | pcs | |||||
| HC28 | 86778503 | Flushing nozzle | 1 | pcs | |||||
| HC28 | 86747979 | Ring | 1 | pcs | |||||
| HC28 | 86772241 | Snap ring | 1 | pcs | |||||
| HC28 | 86809365 | Packing | 1 | pcs | |||||
| HC28 | 86235355 | O_ring | 2 | pcs | |||||
| HC28 | 86778560 | Retainer socket | 1 | pcs | |||||
| HC28 | 86778545 | Flushing ring | 1 | pcs | |||||
| HC28 | 86778651 | Snap ring | 1 | pcs | |||||
| HC28 | 86778644 | Shank protection | 1 | pcs | |||||
| HC28 | 86331766 | Adapter | 1 | pcs | |||||
| HC28 | 86263233 | Plug | 1 | pcs | |||||
| HC28 | 86726734 | Seal kit | 1 | pcs | |||||
| HC28 | 86392669 | Plug | 1 | pcs | |||||
| HC28 | 86778446 | Carter | 1 | pcs | |||||
| HC28 | 86778511 | Cover | 1 | pcs | |||||
| HC28 | 86778693 | Seal | 1 | pcs | |||||
| HC28 | 86255700 | O'ring | 1 | pcs | |||||
| HC28 | 86778586 | Ring | 1 | pcs | |||||
| HC28 | 86778594 | Drive component | 1 | pcs | |||||
| HC28 | 86778578 | Ring | 1 | pcs | |||||
| HC28 | 86778529 | Splined nut | 1 | pcs | |||||
| HC28 | 86778701 | Seal | 1 | pcs | |||||
| HC28 | 86793452 | Shank stop incl.: | 1 | pcs | |||||
| HC28 | 86611662 | Seal | 1 | pcs | |||||
| HC28 | 86778453 | Cylinder | 1 | pcs | |||||
| HC28 | 86729332 | Drive component | 1 | pcs | |||||
| HC28 | 86778719 | Seal | 1 | pcs | |||||
| HC28 | 86270618 | Adapter | 3 | pcs | |||||
| HC28 | 86263233 | Plug | 3 | pcs | |||||
| HC28 | 86392669 | Plug | 3 | pcs | |||||
| HC28 | 86492048 | Screw | 4 | pcs | |||||
| HC28 | 86796299 | Seals package | 1 | pcs | |||||
| HC28 | 101062720 | Cover | 1 | pcs | |||||
| HC28 | 86753852 | Diaphragm kit | 1 | pcs | |||||
| HC28 | 86600632 | Valve | 1 | pcs | |||||
| HC28 | 86580966 | Threaded plug | 1 | pcs | |||||
| HC28 | 86746575 | special screw | 10 | pcs | |||||
| HC28 | 86655214 | O_ring | 1 | pcs | |||||
| HC28 | 86221595 | Drive component | 1 | pcs | |||||
| HC28 | 86715489 | Upper cylinder | 1 | pcs | |||||
| HC28 | 101050719 | Pin | 1 | pcs | |||||
| HC28 | 86778461 | Strike piston | 1 | pcs | |||||
| HC28 | 86715422 | Distributor | 1 | pcs | |||||
| HC28 | 86715448 | Push rod | 1 | pcs | |||||
| HC28 | 86778495 | Piston cover | 1 | pcs | |||||
| HC28 | 86778487 | Cover | 1 | pcs | |||||
| HC28 | 86420098 | O_ring | 1 | pcs | |||||
| HC28 | 86326618 | O_ring | 1 | pcs | |||||
| HC28 | 86668860 | Roller thrust | 1 | pcs | |||||
| HC28 | 86668886 | Ring | 1 | pcs | |||||
| HC28 | 86712403 | Ring | 1 | pcs | |||||
| HC28 | 86684263 | Seal | 1 | pcs | |||||
| HC28 | 95687497 | socket head screw | 8 | pcs | |||||
| HC28 | 86778628 | Plug | 1 | pcs | |||||
| HC28 | 86785946 | O_ring | 1 | pcs | |||||
| HC28 | 86793338 | Adapter | 1 | pcs | |||||
| HC28 | 86656410 | O_ring | 1 | pcs | |||||
| HC28 | 86233574 | Plug | 1 | pcs | |||||
| HC28 | 86392669 | Plug | 1 | pcs | |||||
| HC28 | 86718004 | Hydraulic motor | 1 | pcs | |||||
| HC28 | 86238201 | O_ring | 1 | pcs | |||||
| HC28 | 96709274 | socket head screw | 1 | pcs | |||||
| HC28 | 86778602 | Flange | 1 | pcs | |||||
| HC28 | 86778610 | Threaded axle | 1 | pcs | |||||
| HC28 | 86587995 | O_ring | 1 | pcs | |||||
| HC28 | 86266301 | Adapter | 1 | pcs | |||||
| HC28 | 86247723 | Plug | 1 | pcs | |||||
| HC28 | 86796299 | Seals package | 1 | pcs | |||||
| HC28 | 86488475 | Plastic plug | 1 | pcs | |||||
| HC28 | 86793437 | Control gauge kit | 1 | pcs |
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