Clean the type with a brush and white spirit
place a cloth under the type bars and the brush them until clean
you might have to wipe each type bar clean to get rid of any excess liquid and dirt
a hard tooth brush is fine to clean the type
do not use a wire brush as that will damage the type face 

check that the type bars are entering the type guide correctly 

check that none of the plates are loose 

some times when the platen is hard it can sound tinny

also check the ring and cylinder
remove the ribbon
move the carriage so the platen is in the centre of the machine.
then feed a peace of paper round the platen
tare off a small peace of paper, then lift the “H” key lever
place the paper strip in front of the platen between the type face and the platen
hold the type bar on to the ring
then pull the paper up, there should be a slite resistance
if the paper will not pull out the platen is too near
if there is no resistance the platen is to far away
do this with the “W” and the “Q“ and at both ends of the platen 

if I think of anything else I will post it
 

Last edited by dukedford (29-6-2015 14:38:50)