please read thro first.
first unplug it, pull it out so you have some work space, take off back plate, remove belt undo (should be white rectangle plastic block with wire attached), remove green+yellow wire undo bolts which hold motor to drum, gently ease out motor (please be aware of sharp edges), run screwdriver down 1 side of motor so you put it back together same way you took it apart, unscrew 4 bolts that hold motor together take top bit of dont loose spacer ring, place to 1 side, remove middle comutator the end the brushes are touching will need a proper clean wd40 maybe wipe clean with cloth so its not dull let dry, undo carbon brushes, take plate off also clean then clean what they were attached to when dry replace in reverse order gently (with new brushes) then replace back on machine plug back in and test by running spin program found at bottom of dail if i have my mod/num right let it get to full spin watch motor if it sparks an looks like blackpool illuminations motors no good will need new 1 sorry.
steven
October 2007