3M 3125 Sander User Manual


 
4. Remove parts from housing
- Place housing (60) in a vise and rotate cup (21) counterclockwise and remove the angle
housing assembly (22-32).
- Rotate the cup lock (20) counterclockwise and remove it.
5. Remove motor
- Remove motor assembly (10-19).
- Drive out rear bearing (11) using special tool and a hammer.
- Remove rear end plate. Drive out bearing (10) using special tool.
- Remove the cylinder (14).
- Remove the vanes (16).
- Hold the rotor (15) carefully. Rotate the pinion (19) counterclockwise and remove.
- Use a plastic hammer to strike the rotor axle (15).
- Remove the rotor from the front end plate.
- Remove the rotor collar (13).
- Drive out the bearing (18) from the front end plate (17) using the special tool.
7