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DTH Hammer Common Faults and Troubleshooting Methods
Sep 27, 2018

DTH Hammer.png

DTH Hammer Common faults and troubleshooting methods

Failure 1. The lubricant is not enough or does not cause premature wear or damage.

Cause: The lubricating oil does not reach the impact structure of the impactor.

Remedy: Check the lubrication device, adjust the oiler, and increase the oil filling.


Fault 2. The impactor does not work or does not work properly.

Cause 1. The gas path is blocked.

    2. The gap between the piston and the inner and outer cylinders is too large.

    3. The impactor is blocked by dirt.

    4. The piston or the tail of the drill bit is broken or other parts are damaged.

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Method of exclusion:

1. Check the air pressure and check if the air circuit is clear. Whether the check valve is stuck.

2. Disassemble the impactor, check for wear and replace worn parts. (In order to work well for the impactor, please use our genuine accessories.)

3. Disassemble the impactor and clean all internal parts inside the impactor.

4. Disassemble the impactor and replace damaged parts such as pistons or drill bits. (In order to work well for the impactor, please use our genuine accessories.)


Fault 3. The drill bit and the front connector are detached.

Cause: The impactor was not working right-handed.

Remedy: Hook off the part and ensure right turn when drilling or lifting.

Drilling and maintenance of DTH drills and drill bits


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