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What is the reason why the pneumatic fan motor is normal or not working?

There are several possible reasons for stopping the rotation:

1.

Pneumatic screwdriver

/The motor throttle valve or air inlet of the blower is blocked by foreign objects.

2. The blade of the pneumatic screwdriver/blower is worn, which causes the rotor to get stuck.

3. Rust inside the pneumatic screwdriver/blower causes it.

Madaka

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4. Wear of pneumatic screwdriver/cylinder

5. The pneumatic screwdriver/blower bearing is damaged.

6. Wear of pneumatic screwdriver/fan gear