Jackleg drills play a critical role in underground mining, delivering powerful percussion and precision in tight spaces and challenging rock conditions. To maximize productivity and minimize downtime, proper maintenance is not optional — it’s essential. In this guide, we share practical maintenance tips tailored to keep your drilling fleet in top form, especially for the rugged GME G250 and the versatile G83F jackleg drills.
Why Regular Maintenance Matters
Underground mining environments expose equipment to dust, vibration, moisture, and continuous use, all of which can accelerate wear. A disciplined maintenance program enhances performance, improves safety, extends equipment life, and reduces operating costs. Whether you’re using the GME G250 or the G83F, these drills reward diligent care with reliability and efficiency.
GME G250 Jackleg Drill – Built for Heavy-Duty Underground Work
The GME G250 Jackleg Drill is engineered for hard rock drilling and demanding underground operations. Known for its robust construction and consistent performance, the G250 delivers powerful percussion force while maintaining operator comfort and control. Its durable components handle high work cycles, making it ideal for tunneling, stoping, and development drilling. To keep the G250 performing at its best, regular inspection of key parts — especially the feed system, air lines, and bits — is crucial. A well-maintained G250 not only extends service life but also maintains the high productivity mining teams depend on.
G83F Jackleg Drill – Versatility and Efficiency Underground
The G83F Jackleg Drill offers a balance of reliability and versatility for a range of underground drilling tasks. Equivalent to the Mid Western S83F, the G83F is a popular choice for operations requiring smooth performance in varying rock types. With its efficient design and manageable weight, it’s effective in both medium and hard rock conditions. Regular upkeep — such as monitoring air supply, checking for wear in moving parts, and maintaining drill bit sharpness — ensures the G83F continues to deliver consistent drilling results. Routine maintenance keeps this drill dependable, minimizing downtime and maximizing drilling accuracy.
Key Maintenance Practices to Keep Your Jackleg Drill Performing Underground
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Daily Pre-Operation Checks
Begin each shift with a visual and functional inspection:
- Look for loose bolts, worn parts, cracks, or signs of stress
- Check feed leg alignment and clamp integrity
- Ensure all safety devices and controls operate correctly
Early detection prevents more serious issues later in the day.
2. Clean and Lubricate Regularly
Underground dust and debris can build up quickly. After each shift:
- Remove dust using compressed air or a clean cloth
- Lubricate bearings, joints, and moving parts as recommended
- Avoid excessive moisture near sensitive components
Proper cleaning and lubrication prevent corrosion and reduce friction.
3. Maintain Air Supply and Filters
Jackleg drills depend on clean, pressurized air:
- Replace clogged air filters promptly
- Maintain recommended air pressure levels
- Drain water or oil buildup from air lines
Good airflow translates to consistent performance and reduced internal wear.
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Monitor Drill Bit Wear
Drill bits are subject to intense wear:
- Check bits for damage or dull edges daily
- Replace worn bits quickly to maintain drilling power
- Match bit type to rock conditions for best results
Sharp bits enhance penetration and reduce strain on the drill.
5. Schedule Professional Servicing
Beyond daily checks:
- Arrange periodic technical inspections
- Replace worn seals, pistons, and other components
- Run performance tests to catch hidden issues
Professional servicing ensures long-term reliability.
Final Thoughts
With proper maintenance, your jackleg drills — especially the GME G250 and G83F — will continue to deliver dependable performance underground. A regular maintenance routine keeps your operations efficient, safe, and cost-effective.
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Keep your drilling fleet strong, efficient, and reliable with proactive care.
