Only a guess and search on this forum.
If yours is the 140 series.
you'll have to remove the drum first as follows
Attach three 10"- 12" G clamps to the edge of the drum approximately 120 degrees apart. Place the mixer with the drum face down into soft earth so that the clamps dig in. Grab the frame and swing it anti clockwise until the drum loosens. Turn the mixer so that the drum now faces upwards. Turn the drum until it comes off the the threaded bit of the shaft. The drum can now be lifted off the shaft. Be aware the drum is very heavy you might need two persons.
OAPete
July 2013
Not my input.
bob uk, March 2017
