Case 3: Burrs are left at cut end faces. Why?
The probable cause is a chipped cutting blade or the deterioration of the bending wheel and
bending wheel guide (See the photo below).
Replace them with new ones.
Replacement parts list for HAKKO 153/154
If the backlash is too large when the cutting wheel guide is
attached to the cutting wheel, they are worn out. Wear causes gaps and
excessive backlash.
Case 4: Bending wheel guide comes off.