COFAN 0900 0401 Guide D'utilisation page 19

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3.1. Disconnect the hammer from the air supply.
3.2. Turn the hammer upside down.
3.3. Simultaneously (at the same time), pull the trigger and pour a teaspoon of oil in the air inlet.
Then, push the forward and reverse button in both directions.
After an air tool has been lubricated, oil will discharge through the exhaust port during the
first few seconds of operation. Thus, the exhaust port must be covered with a towel before
applying air pressure. Failure to cover the exhaust port can result in serious injury.
4. Connect the hammer to the air supply and cover the exhaust port with a towel.
Run the hammer and oil will discharge from the exhaust port when air pressure is applied.
5. Impacting mechanism lubrication. The hammer should be lubricated monthly.
5.1. Disconnect the hammerr from the air supply.
5.2. Remove the slotted screw or Allen head screw from the oil porthole on the right side of the tool
that has "OIL" stamped below the hole for.
5.3. Put three teaspoons of air tool oil in the oil porthole. Replace the screw.
5.4. Reconnect the air supply to the hammer and run for 20 to 30 seconds.
Lubricate the entire tools by rotating upside down and sideways while running the tool.
5.5. Remove the screw and hold the oil porthole over a suitable container to allow excess oil to
drain.
5.6. If the oil is dirty, repeat the procedure above until the oil comes out clear. Install the screw and
tighten. The residual oil remaining in the impacting mechanism chamber is all that is needed for
proper lubrication.
ENGLISH