DAELIM ET-300 Service Manual page 144

Loosen two bolts to take out rear brake disk
as shown in picture.
Bolts
Loosen bolts and remove the brake disc
Check the thickness of disc and replace a new one
if the thickness less than 3mm
TO REPLACE THE BRAKE SHOE
To replace the brake shoe, please loosen this bolt as
shown in picture.
Bolt
Please push the plate back to take a shoe out as shown
in picture
Plate
Piston