Challenge MEDALIST 820 Instructions And Parts Manual page 21

NOTE: If you have purchased a crosscarrier kit
as an after market addition to convert a second
folder to a right angle, you will need to perform
three additional procedures (A – C) as follows.
Friction Drive
Friction Drive
Collars
Collars
A. Reposition the O-ring friction drive collar from
the center (feed table) position to align with the drive
collar of the cross carrier, (fig. 35). Loosen the set
screws in the collar and move the collar to the right
until it aligns with the collar on the crosscarrier. O-rings
should alternate contacts. Retighten the set screws.
1/4"
Transfer
Table
B. Install a transfer table drive gear onto the lower
slitter shaft of the machine that is to be used as the
main folder. Remove the lower slitter shaft and re-
move all the drive wheels (and any perf, score, or slit-
ting blades/wheels). Install the drive gear (teeth first)
onto the shaft, position and secure 1/4" from the end of
the shaft, see fig. 36. Replace the drive wheels (and
any accessory wheels, blades, or collars). Replace the
scoring shaft into the folder. (Gear may be repositioned
on the shaft if necessary once the transfer table has
been installed.) Make sure all the set screws are tight-
ened securely.
F.669-D/820-870/Jan 98
(fig. 35)
Drive Gear
Drive Gear
Slitter Shaft Slitter Shaft
(fig. 36)
C. Install the electronic pigtail assembly so the ma-
chines can electronically communicate with each other.
Instructions for making this hookup can be found on
pages 72 & 73 in the Parts and Assembly Drawings
section of this manual.
6. Once the crosscarrier legs have been attached and
the crosscarrier installed into the parallel unit, level the
crosscarrier by adjusting the leveling screws attached
to the bottom of the support legs, (fig. 33, pg 20).
NOTE: The carrier must be level side-to-side so it is
level with the fold rollers. End-to-end, it does not have
to be level, adjusting screws need only to be set low
enough to provide enough contact between the friction
drive collars (fig. 35) to drive the crosscarriage rollers.
7. Reposition the delivery table and stacker wheel as-
sembly from the folder to the back of the right angle
parallel unit.
8. Position the transfer table onto the back of the folder.
It mounts in the same manner as the delivery table —
Insert the spring loaded end (right side when viewed
from the rear of the folder) of the drive shaft into the
locator hole in the side frame, compress the spring
against the frame and swing the opposite end into po-
sition in the other side, (fig. 37). NOTE: Make sure the
drive gears mesh as shown in fig. 36.
9. Position the crosscarrier right angle unit against the
back of your folder as in figure 32, pg 20 and proceed
to make your conveyor and fold plate adjustments.
10. Connect the electrical cable pigtails protruding
above the electrical panels. This allows the folders to
communicate and shut down simultaneously in case
of a paper jam in one or the other unit.
11. Connect the power cord into the back of the power
panel. Plug the cord into a 20 amp grounded recep-
tacle.
(fig. 37)
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