M&R Challenger II 12 COLOR, Руководство пользователя

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Operator Controls
M&R Printing Equipment, Inc. - Glen Ellyn, Illinois
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When the screen frames are properly loaded into the front
and rear screen frame holders, lock the screen frame into
position using the pneumatic screen frame clamp toggle
switches (Air Locks) located on the small control panel on
top of the print station assembly. Install all remaining screen
frames as outlined previously.
You are now ready to install the flood bar and the squeegee.
The flood bar is installed on the rear (towards the center of
the press) print carriage mounting bar. The squeegee is
installed on the front (towards the outside diameter of the
press).
NOTE: On presses ordered with out-
side to inside diameter print stroke, the
flood bar and squeegee mount in an
opposite manner, squeegee at the rear
(towards the center of the indexer) and
flood bar in the front (towards the out-
side diameter of the press).
Align the notches on the flood bar and squeegee with the
pneumatic squeegee/flood bar clamps, or with the manual
mounting clamps provided. Raise the squeegee/flood bar
into the clamp assembly and up against the chrome plated
mounting bar and slide it either to the right or the left to cen-
ter it on the mounting bar. Once centered, lock the
squeegee/flood bar in place using the pneumatic clamps or
manual clamps as provided.
Both the flood bar and the squeegee are provided with an
angle adjustment. If the angle is set to a greater degree, the
squeegee will deposit more ink during the print stroke.
Decreasing the angle will result is less ink deposit. The
same holds true for the angle of the flood bar as well. Set
the angle for the squeegee and flood bar to middle range
(an approx. 30-40 degree angle). (See illustration below)
Adjust the flood bar pressure by use of the large black
knurled knobs at the top of the print carriage assembly. The
flood bar pressure should be adjusted so that there is only
a slight pressure felt on the bottom of the screen mesh. To
increase the flood bar pressure, turn the black knurled
knobs counterclockwise. To decrease the pressure, turn the
black knurled knobs clockwise. With the flood bar installed,
you are now ready to install the squeegees.
Squeegee installation is performed in the same manner as
described previously for the flood bar, raise, align and lock.
Adjustment of the squeegee pressure is as follows:
A properly adjusted squeegee should exhibit a slight bend,
producing a light resistance as you manually push the print
carriage towards the rear of the screen. You can note the
pressure reading on the small reference scale on the air
cylinder. To increase the squeegee pressure, turn the black
knurled knobs counterclockwise. To decrease the pressure,
turn the black knurled knobs clockwise. (See illustration
below)
The M&R AC print stations feature solid state proximity sen-
sors to facilitate the setting of print stroke length from the
front and the rear of the screen. To adjust the print stroke
length, simply grasp the sensor mounting bracket, and gen-
tly slide the proximity sensor to the desired position. Adjust
the sensor so that the flood bar and squeegee just clear the
image area of the screen. (See illustration below)
Challenger II
mrprint.com
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IMPORTANT!