Martin Yale 959, Installation, Operation & Maintenance Instructions Manual

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2.1 Retarder Adjustments
Loosen 2 socket head set screws on retarder assembly and rotate
until retarder wheel is centered over feed roller. Use the retarder
template shown in this manual (cut out along line), place bottom
edge of the template on feed table and over rollers until the angle
of the template meets the retarder assembly. Rotate retarder until
it is parallel with retarder template, making an angle of 83
degrees. Tighten the two socket head set screws on retarder. See
Fig. 7.
2.22 Guide Finger Adjustments
The height adjustment of the guide fingers should be approxi-
mately 1/32" from the surface of the feed table. See Fig. 7A.
This guides the paper more evenly and accurately into the rollers
for folding. The angle of the guide fingers should be approxi-
mately 90 degrees to the feed table surface. See Fig. 7A. This
will reduce the possibility of paper lifting too high, thus wrin-
kling the paper and possibly causing the machine to jam.
Connect the power cord to a properly rated and grounded outlet.
This concludes the basic set-up of your folder. This does not in
any way indicate that the folder is ready for use. You must com-
plete the Operation section of this manual
before turning the unit
to the ON position.
3.0 Operation
When the folder has been properly adjusted and turned to the
ON position, the stock to be folded is placed upon the feed table.
The stock is then automatically fed into one or both of the fold
tables, depending on the type of fold or folds desired, and the
folded sheets are delivered onto the exit table in an overlapping
row.
3.1 Adjust Retarder
Directly above the feed roller is the retarder, mounted in an
adjustable housing. This retarder permits automatic feeding of
various stock thicknesses when adjusted properly. The thumb
screw control raises and lowers the retarder. Place a sheet of
paper to be folded between the feed roller and retarder roller, and
while the folder is running, hold the sheet firmly to prevent it
from feeding into the rollers. Rotate the thumb screw clockwise
to increase pressure or counter-clockwise to decrease pressure.
The retarder is properly set when you have a noticeable drag on
the paper, yet not so tight that you cannot prevent the paper from
being fed. The paper should separate and feed one sheet at a
time. If two or more sheets are fed together, turn the thumb
screw on the retarder assembly clockwise slightly to increase
pressure.
WARNING: Please be sure to adjust the allen screws 1/4 turn
past snug. DO NOT OVERTIGHTEN. Doing so could
damage the Retarder Assembly.
Note:
When changing to a different weight of paper, this setting
must be altered. The retarder roller may be rotated to get a new
surface as the old one wears. Loosen the screw and nut and
rotate the retarder to a new position. Retighten screw and nut.
3.2 Folding
The fold tables can be installed with either end in the machine.
One end is a deflecting end, and the other is a folding end. See
Fig. 3. When the deflecting end is in the machine, the sheets
cannot enter the fold table. They simply continue along the paper
path. If the folding end is in the machine, the sheets enter the
fold table to become folded before continuing along the paper
path. The location of the fold is determined, for any given
length of sheet, by the location of the adjustable paper stop. This
location is read directly from the fold rulers, which are located
on either side of the fold tables.
3.2.1 To relocate a paper stop:
1. Loosen the thumb knobs on top of the paper stop assembly
about two full turns (counterclockwise). A spring under
each nylon split-nut helps to disengage the split-nut from the
micrometer rod threads.
2. Place the thumb on top of the left and right locking knobs
and with your fingers grasp the split-nut for control. Slide
the paper stop assembly parallel along the micrometer rods
to its required position. Turn the thumb knobs clockwise to
lock paper stop into its new position.
3. Make test fold and check fold accuracy. Fold corrections
can be made by loosening the thumb knob 1/4 - 1/2 turn.
The micrometer wheel can now be turned, moving the paper
stop for fold corrections. Re-tighten thumb knobs. Repeat
step three until folded material is acceptable.
Note: Rulers are only approximate. Adjustments will have to be
made for various papers, speed of machine, out-of-square paper,
etc.