Avery Dennison ST9500, Operator'S And Service Manual

Page: 35 / 80

35
Replacing the Knife
Disassembly
1. Unplug the unit.
2. Open the front door.
3. Remove the needle guard (see page 29).
4. Remove the tighten screws on the right and left needle blocks, then push the knife
lever so as to remove the right and left needle blocks.
5. Remove the spring cover on the bottom of the knife spring and take out the washer
and spring.
6. Remove the knife.
Assembly
1. Orient the knife with the flat side facing up.
2. Position the square hole in the knife over the square projection that drives the
knife.
3. Position the knife spring over the square projection of knife lever.
4. Mount the spring cover and tighten it.
5. Check that the knife moves back and forth easily and is seated squarely in the
needle holder block.
6. Make sure the needle holder is seated squarely in the needle holder block.
7. Mount the right and left needle blocks.
8. Double check to make sure the knife moves in and out freely.
Right needle block
Left needle block
Spring cover
Hold Knife Spring
Knife
Knife block
Knife lever