While you wait for answers, we may have found some information which could help you.
Success
Message
Qualcast 320 Grass trimmer?
spool removal?
Qualcast Scarifier not working?
spool change?
Striker cord?
Qualcast lawn rake model yt6702?
qualcast med lineauto?
Set screw size Qualcast B43 Mo Line Strimmer?
Qualcast Petrol Grass Trimmer - 30cc?
where can I upload the manual for a qualcast mo - line b43 auto?
qualcast mo-line b43 fuel tube?
where can I get a new battery for qualcast trimlite 23 ?