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3M-Matic 800rf Case Sealer Disassembly/Reassembly
3M 1998 December 4-9
4-11. Knife Replacement, Upper Taping
Head
The Tape Cut-Off Knife is very sharp. To
avoid personal injury, handle the knife with
special care. Also, disconnect the power
before starting this procedure.
1. Apply air pressure to the machine and raise the
upper head assembly to its full upward position.
2. Pivot the knife guard back and hold it in this
position, as shown in the figure below.
3. Carefully cover the knife teeth with tape.
4. Loosen, but do not remove, the knife fastening
screws [A]. Remove and discard the old knife.
5. Clean the knife mounting bracket.
6.
Carefully cover the teeth on the new knife with tape.
7. Position the new knife [B] with the beveled side
away from the mounting bracket.
8. Mount the knife so that the screws bottom out in
the slots. This position automatically gives the
proper mounting and cutting angle.
9. Tighten the screws that secure the knife.
10. Slowly pivot the knife guard back and forth to
ensure proper clearance.
11. Remove the tape from the new knife.
Caution
Be sure the knife does not interfere with the
knife guard.
Warning!
!