Case Study: Low Rotation Torque on Rock Drill

Equipment Model: Sandvik Ranger DX800 Surface Drill Rig

Symptom: The rock drill experiences significantly reduced rotation torque and penetration rate, even when system pressure appears high.

Diagnosis: This often points to internal leakage within the rotation hydraulic motor, potentially due to excessive wear on the piston group or failure of the internal SEAL SET 6060017420 or the O-RING 5534015400.

Solution:

• Immediate replacement of the rotation motor (or an equivalent part, such as our alternative to the 2681306474 HYDRAULIC MOTOR).

• If the motor is serviceable, a full overhaul using an OVERHAUL SET 6060014322 should be performed to restore internal tolerances.

• Always check the cleanliness of the hydraulic fluid and replace the FILTER ELEMENT 6060102323 to prevent recurrence, utilizing Hugeminer's certified filtration components.