Challenge TITAN 265 XG, Operator'S Manual

Page: 43 / 52

7.0 Knife Installation/Changing
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7.2 Knife Installation
Knives are heavy and always very sharp! Be sure to keep the edge away
from your body and keep other people out of the area while handling the blade. Severe lacerations or
dismemberment could result from careless handling procedures.
1. Make sure the knife and clamp are in the up position. If they are not, turn on the power and
press the CLEAR button. Once the backgauge is preset, press both cut buttons to send the
knife and clamp up.
2. Turn the power off and lockout power to machine, see Power Lockout Procedure, page 5.
3. Pull out the cutting stick using the cut stick removal tool and turn it to a new surface. If the
cutting stick is not level or flush with the table, 1/2” strips of paper can be placed in the table
slot under the cutting stick to shim it.
4. Remove the left retainer screw from the new blade and screw the knife lifter assembly into
the new blade. Screw the lifters all the way in and then back them out a 3/4 turn).
5. Remove the other scabbard retainer screw.
6. Double check to make sure the knife adjusting screws have been backed out all the way
(Figure 21, page 42). Guide the blade, left edge first, into the space between the knife bar
guide frames on the left. Move the right end of the blade into the machine, under the knife
bar slot. Align the lifters with the slots in the knife bar, raise the knife into the knife bar slot as
high as it will go and tighten the lifters.
NOTE: If the blade will not go in, either the lifters are screwed into the blade too far, or the
end of the blade is hitting the cylinder bracket at the right end of the knife slot. In this case,
drop the left end when inserting the knife.
7. Insert the knife bolts with washers and snug to hold the knife, but don’t tighten them yet.
8. Remove the knife lifter assembly and replace with bolts and washers.
9. Place a few sheets of paper over the cut stick, covering the stick end-to-end.
10. Restore power to machine and turn power on.
11. Go to the MAINTENANCE screen and choose KNIFE ADJUST. Choose KNIFE DOWN, then
press and hold the cut buttons to send the knife to the down position.
12. Turn the power off and lockout power to machine.
13. Turn the knife adjusters down evenly, a little at a time, until the knife cuts through the bottom
sheet of paper the entire length of the cutting stick (Figure 24). Turning the screws down
evenly prevents uneven wear on the knife and cutting stick.