While you wait for answers, we may have found some information which could help you.
Click here for Gcs 2000s GardenlineHow to fix electric chainsaw, will not start?
what is the right mixture petrol/oil for a gardenline petrol chainsaw?
as below?
Garedenline GCS 2000S Chain Saw broken idler gear?
chain oil adjuster?
Saw blows the Trip Switch when the On button pressed?