Baumfolder BaumCut 26.4 (For serials 78D1001 thru 78D1100) - Manual (Page 89)

6.0 Knife Change
The knife may only be changed by personnel especially instructed
for this purpose!
Always use the knife guard when changing or transporting the knife
outside the knife case!
Please make sure to verify the effectiveness of the safety installations
before every shift and after every knife change.
It is recommended to record the test results!
K6 - 1