Regular Maintenance - Mighty Seven NE-399 Bedienungsanleitung

Maintenance:
1. Before connecting the air hose to this tool or after operating, apply 4 or 5 drops of
pneumatic oil into the air inlet and run it for several seconds, referring this operation to the
attached illustration No.1.
2. Maintain this tool regularly by performing the same oiling application every 3 to 4 hours of
operation.
3. Do not lubricate tools with flammable or volatile liquids. Use only the lubricant
recommended by Mighty-Seven or authorized dealers. Any other lubricant will lead to
reduce performance of the tool and permanent damage. Whenever any unauthorized
lubricant is used by accident, flush it immediately with recommended pneumatic oil.
4. The impact mechanism also needs to be greased once every 50 hours after practical
operation, referring this performance to the attached illustration No.2.
5. Follow all the recycling laws of waste disposal once this tool is no longer usable.
Pneumatic oil

Regular maintenance

4
Air inlet
Impact mechanism greasing