Mincon Rockdrills MC60

Questions and Answers

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Victoria BuchananJul 31, 2025
Why do Mincon Rockdrills MC60 have low penetration and high pressure?
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  anna50Aug 1, 2025
  If Mincon Rockdrills Tools exhibit low penetration and high pressure, it might be due to several reasons. The chuck shoulder length may be excessively worn, restricting air on the piston's upstroke, so measure it against the discard length and replace if needed. There could be contamination in the hammer, requiring you to open it and remove any obstructions. Also, excessive water injection can cause this issue, so reduce the water flow.
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kennedydanielleAug 5, 2025
What to do if Mincon Rockdrills MC60 operate roughly or erratically?
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  Daniel Matthews DDSAug 5, 2025
  If your Mincon Rockdrills Tools are operating roughly or erratically, several factors could be at play. First, excessive feed pressure might be the culprit; adjust it until the rotation starts to bind, then reduce it until it runs smoothly. Also, a worn chuck shoulder can restrict air to the drill's upstroke; measure it against the discard length and replace if necessary. The rotation speed might be too slow, so ensure a drill bit peripheral rotation speed of 12 – 15” per second (300-380mm). Worn bit bearings (on some models) can also cause this, so replace them if they're outside the discard limit. Finally, too much water injection can lead to rough operation, so reduce the water injection level.
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Jody FrancisAug 9, 2025
Why is the piston strike end breaking on Mincon Rockdrills MC60 Tools?
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  Charles HortonAug 9, 2025
  If Mincon Rockdrills Tools experience piston strike end breaking, it could be due to insufficient down-force. Increase the feed until rotation binds and pressure pulses, then reduce it until rotation and pressure become smooth. Another reason could be contamination from excessive water injection, causing pitting on the piston face. Avoid excessive water, ensure it's pH neutral and filtered to prevent contamination.
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Caleb MarshallAug 13, 2025
What to do if Mincon Rockdrills MC60 have low penetration / low pressure?
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  Greg BlackAug 13, 2025
  If your Mincon Rockdrills Tools have low penetration and low pressure, inspect the piston, inner cylinder, wearsleeve, air distributor probe, and bearing against discard measurements as outlined in repair section 2.2 and discard as necessary due to worn drill clearances. Also, ensure there is an oil film coming from bit spline and bit parts by placing cardboard under the bit to check for lack of oil.
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James RiveraAug 17, 2025
Why is my Mincon Rockdrills Tools drill running off bottom?
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  Denise AllenAug 17, 2025
  If the Mincon Rockdrills Tools are running off bottom, it could be due to a worn piston. Measure the large end of the piston for wear, as air leaking past this area can cause cycling when off bottom. Too much water injection can also cause this, so reduce the water injection flow. Additionally, a worn chuck I/D or bearing I/D can be the issue, so replace the chuck or bearing, respectively.
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jwatsonAug 22, 2025
How to prevent cracked wearsleeve in Mincon Rockdrills MC60?
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  Melvin BeckAug 22, 2025
  A cracked wearsleeve on Mincon Rockdrills Tools can be caused by abuse of the wearsleeve. Avoid welding, heating, or using a torque wrench in the wrong place as outlined in section 1.4. Also, a worn wearsleeve where the casing has worn beyond the discard point can cause cracks. Measure the casing O/D approx. 3” from the chuck end and backhead end and replace if necessary. Corrosion from using non-pH neutral, unfiltered, or contaminated water can also lead to cracks. Ensure you're using pH neutral, well-filtered water free from contaminants. Coat with corrosion protector if there is any danger of corrosion.
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Chris JordanAug 27, 2025
What causes a piston to crack through large diameter in Mincon Rockdrills MC60 Tools?
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  Nathan HarrisAug 27, 2025
  A piston cracked through large diameter in Mincon Rockdrills Tools may be due to a lack of lubrication, causing micro-cracks. Check the lubricator and ensure an oil film on the bit splines and slow holes. It may also happen if the drill is badly bogged, which can cause the wearsleeve to distort. Flood tool with water when bogged. Feeding hard through voids on broken ground can cause the wearsleeve to distort. Use light feed and ensure the hole is kept clean and consolidated. Use foam or mud if necessary. Also, using a wrench over the wrong area causes the wearsleeve to distort. Use wrench only in the Area indicated in spec 1.4.

Summary

Installation and Operation

Safety

Essential safety precautions for operating the Mincon MC60 hammer, including PPE and handling procedures.

Hammer Care

Guidelines for maintaining the hammer, covering storage, commissioning, lubrication, and operation.

Storage

Guidelines for storing the hammer to prevent damage and maintain condition, including proper lubrication.

Commissioning

Steps for initial setup and operation, including bit selection, lubrication, and initial run-in procedures.

Lubrication

Importance of continuous lubrication, recommended oil grades, and visual checks for proper oil flow.

Operation

Instructions on operating the hammer, including thrust control, rotation speed, and flushing procedures.

Servicing

General Servicing Practices

Recommendations for thread greasing, avoiding certain greases, and general preparation for servicing.

Opening Chuck and Backhead

Detailed procedure for safely dismantling the chuck and backhead using appropriate tools and techniques.

Dismantling for Drill Bit Change

Step-by-step guide for removing and replacing the drill bit, emphasizing safety and proper support.

Disassembly for Full Servicing

Comprehensive guide to disassembling the hammer for thorough maintenance and component replacement.

Inspection Procedures

Methods for visually inspecting components for wear, damage, or cracking, including cleaning recommendations.

Checking Wear Limits

How to measure critical component wear, referencing service logs, and determining when parts need replacement or reversal.

Reassembly Guide

Instructions for reassembling the hammer, including lubrication, part placement, and critical gap measurements.

Trouble Shooting

Common Problems and Solutions

Identifies common operational issues, their causes, and recommended remedies for effective troubleshooting.

Appendix

Parts List and Technical Data

Provides an exploded view, part numbers, and key technical specifications for the Mincon MC60 hammer.

Hammer Service Log

Guidance on using the service log to record measurements and track component wear for maintenance purposes.

Warranty

Limitation of Liability and Void Conditions

Details the warranty terms, limitations of Mincon's liability, and conditions that will void the warranty.