Changing the rear bearings requires hydraulic pressure behind the bearing to push them out.

Once the blower is dismantled the first step is to tap a thread into the two access holes from the underside of the blower. 8.0mm or 5/16".

The next step is to slightly dislodge the bearing from its seated position by using a stepped shaft to knock the bearing in a little. Strike on the front edge of the bearing only, do not damage the rear of the bearing case.

You will need to use an extension piece for the grease nipple which can be made from an old pushrod. Tap a thread at one end to suit a grease nipple and use a die nut on the other end the same thread as you have tapped the access holes.

Screw the grease nipple into the hole and use a grease gun to fill the cavity behind the bearing with graese untill the pressure is high enough to dislodge the bearing.

New bearings should be pressed in straight, using a snug fitting stepped shaft applying pressure to the front edge of the bearing only.