DISC, BRAKE

560 432 48 DISC, BRAKE Working inside a brake caliper assembly, this disc serves as the rotating friction surface for the brake pads. When hydraulic pressure is released from the motor, the brake engages against this disc to lock the mechanism. This is vital for holding the drifter stationary on the feed beam, especially when adding or removing drill rods, or for preventing unwanted rotation of the drill string.

A properly functioning DISC, BRAKE is fundamental to both safety and drilling precision. If the disc becomes excessively worn, glazed, or cracked, the brake's holding capacity is significantly reduced. This can lead to the drifter slowly creeping down the feed, which is a serious safety hazard. It also affects performance by making it difficult to maintain a precise position for collaring a new hole.

Common signs of a failing DISC, BRAKE include a grinding noise when the brake engages or a noticeable slippage of the feed carriage under load. During routine inspections, check the disc surface for deep grooves or heat-related cracks. If the disc is worn below its minimum thickness, it must be replaced to restore safe braking power.