Challenge MEDALIST 820, Instructions And Parts Manual

Page: 13 / 80

13
F.669-D/820-870/Jan 98
3. Place a one inch wide (25mm), double thickness
piece of stock to be folded under the tip of the separa-
tor plate, (fig. 19). Lower the separator (cw) until there
is a slight drag on the paper as it is pulled from under
the separator.
(ill. 1)
Vacuum
Advance
Backstop
(fig. 20)
4. The vacuum advance knob is located on the side of
the feed table, (fig. 20). Adjusting the knob will position
where the vacuum contacts the lift of paper, ill. 2a &
2b. Raising the knob will move the vacuum away from
the lift and toward the rollers (light papers). Lowering
the knob will move the vacuum contact toward the lift
and away from the rollers (heavy papers).
Horizontal Separator Adjustment
1. Raise the separator (ccw) to avoid marking the sucker
wheel.
2. Loosen knob (ill. 2). Setscrew in Accessory Kit,
(item #14, pg 67), may replace knob if desired.
3. As a starting reference, turn the handwheel until a
set of sucker wheel holes is at the 12 o’clock position.
4. Adjust separator assembly so that the plate is 1/16”
forward of the 12 o’clock position, measure from the
feed side of the plate.
5. Tighten knob (ill. 2).
(2a)
(2b)
(ill. 2)
Feeding Paper
1. Load a lift of paper onto the feed table. The lift should
be no higher than the side guides, 2" (51mm). Position
the backstop up against the lift, (fig. 20).
2. Turn on the air/vacuum pump. The air should float
the bottom of the lift approximately 1/16 to 1/8" (16 to
32mm). Air blast can be controlled by adjusting the
valve located at the end of each side guide, (fig. 21 &
fig. 22, pg 14).
Air Blast
Openings
Air Blast
Control
Knobs
(fig. 21)
Knob
Knob