517869a
CLUTCH
The 517869A CLUTCH is a key component within the drifter's rotation unit. It is responsible for engaging and disengaging the rotational force from the motor to the drill string, ensuring reliable torque transfer for efficient drilling and protecting the drivetrain.
Description
517869A CLUTCH Positioned within the gear housing of the rock drill, this CLUTCH assembly connects the rotation motor to the gear train. Its primary function is to transmit torque, allowing the drill bit to turn effectively. It also serves a…
Full Technical Description
517869A CLUTCH Positioned within the gear housing of the rock drill, this CLUTCH assembly connects the rotation motor to the gear train. Its primary function is to transmit torque, allowing the drill bit to turn effectively. It also serves a protective role, designed to slip under sudden, extreme torque loads, which prevents catastrophic damage to the rotation motor and gears if the drill string gets jammed.
A worn CLUTCH directly impacts drilling performance and rig availability. Symptoms of wear include a noticeable loss of rotation power, inconsistent turning speed under load, or the drifter struggling to break threaded rod joints. If the CLUTCH fails completely, rotation stops, bringing the entire drilling operation to a halt and requiring immediate, often difficult, field service.
During a drifter rebuild, always inspect the CLUTCH components for signs of glazing, heat damage, or excessive wear. If you hear a whining or grinding noise from the drifter during rotation, it could be an early warning of CLUTCH failure. Replacing the CLUTCH assembly with the correct part is essential for restoring performance and preventing more extensive damage.
Applications
- Underground drilling jumbos
- Mining and tunneling
- Hydraulic control systems
- Rock drilling spare parts
Specifications
| Brand | Sandvik |
|---|---|
| Machine Type | DI550 |
| Assembly | COMPRESSOR, MOUNTING |
Used on machines
Brand
All Sandvik parts
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