BRAKE ASSEMBLY

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The 550 234 95 BRAKE ASSEMBLY is a critical safety component for the drifter's rotation unit. It securely locks the rotation of the drill string when hydraulic pressure is off, which is essential for safe and efficient rod handling during the drilling cycle.

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Full Technical Description

550 234 95 BRAKE ASSEMBLY Located within the drifter's rotation unit, this brake assembly's main job is to hold the drill string stationary. It engages automatically when the operator stops rotation, preventing the string from spinning freely. This locking action is crucial for safely adding or removing drill rods, as an uncontrolled spinning rod is a significant hazard.

A properly functioning brake directly impacts drilling reliability and cycle time. If the brake fails to hold, it becomes difficult to apply the correct torque needed to break rod joints, slowing down the entire operation. Conversely, a brake that doesn't release correctly will drag on the rotation motor, causing it to overheat and wear out prematurely, reducing overall drilling power.

Listen for unusual grinding noises from the rotation unit and watch for any slow, creeping rotation when the controls are neutral. These are clear signs of a failing brake. Due to its safety-critical nature, this assembly should be replaced as a complete unit rather than attempting a field repair.