Never allow a hammer and bit to remain overnight in a hole that contains water or mud. The corrosive action caused by these conditions can seriously damage the hammer. Observe the following points when storing the hammer. They will help its components stay protected
from rust, and ensure that it is always ready to be used, whenever necessary.
–– Disassemble the hammer completely.
–– Thoroughly clean and repair all of its components.
–– Reassemble the hammer immediately, keeping
–– Coat the entire inside diameter of the hammer with a light film of rock drill oil. Coat all of the threads with thread grease. Install thread protectors.
–– Seal each end of the hammer to keep it free from dirt and dust.
–– Always store the hammer in a suitable protective container, in a dry location.
–– Grease the bit shank.
–– Place a protective cover on top of the bit to prevent foot valve breakage.
–– Always store the bit in a dry location.
–– Before storing the hammer overnight or over a weekend, clean it by blowing lubricated air through the system, and insert rock drill oil into the top sub. Push the check valve dart open with a rounded-end drift pin, to ensure the inlet of oil to the hammer.