M7 NC-8211, Manual

2

1.  This tool should only be used as a hand operated tool. It is powered by compressed air and is not insulated against electric 

shock.

2.  This tool is specially designed for tightening or loosening bolts or nuts. Any application or use of this tool other than what it is 

designed for is strictly prohibited. 

3.  Use only pneumatic impact sockets and accessories on this tool. Never use hand sockets or accessories.
4.  High sound levels may cause hearing damage. Always wear hearing protection when operating this tool.
5.  Wearing eye/face protection can reduce the danger of high-speed socket being ejected from the tool, due to improper socket 

insertion during operation.

6.  User must wear proper clothing. Loose clothing, long hair, stings, straps, belts and jewelry should not be worn when operating 

this tool.

7.  Before using these tools, make sure that all couplings and plugs are securely mounted. Air hoses which are under pressure will 

cause a whipping action when disconnecting, this can lead to serious injury!

8. 

in well-balanced position while operating this tool.

9. 

rotating direction.

10.In case of tool insert failure, always keep hands away from rotating socket to reduce the risk of being injured, especially when 

12.Release the throttle trigger to avoid danger if there is a failure of energy supply and when connecting or   disconnecting the air 

hose.

13.prolonged use will cause user fatigue. Periodic breaks are recommended for user safety.
14.It is recommended to stop operating the tool whenever the user experiences discomfort, tingling or pain during use.
15.Beware if the compressed air hose breaks unexpectedly, or is being connected or disconnected improperly. This whipping action 

may cause injury.

16.Always use caution when operating this tool to prevent injury.
17.Avoid storing this tool where it is subject to high humidity.

Warning:

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 

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.

Maintenance:

Regular maintenance

Pneumatic oil

Air inlet