Martin Yale 959AF Installation, Maintenance & Operating Instructions page 8

made with the micro adjustment wheels. This is the
same for all fold styles. See Fig. 10
When the feed
table paper
guides are cor-
rectly set and a
consistent fold
speed is main-
tained, the fold-
ed material will
exit the machine
consistently.
After the neces-
sary corrections
are made, complete the folding job.
4.3.2 Setup For A Z Fold (8 1/2" x 11" or A4)
NOTE: The setup for this fold is identical to 4.3.1 except for
the positioning of the paper stop on the fold table.
Set the feed table as described in Section 4.2.2. Set the sheet
detector as described in Section 4.2.1. Set the paper stop on the
first/upper fold table to the center of the letter B (P for A4) on
the scales. Set the paper stop on the second/lower fold table to
the center of the letter S (M for A4) on the scales. Move the
paper stops as described in Section 4.2.3. Jog the paper to be
processed on an Martin Yale Model 400 or 4200 Jogger, or hand
jog.
4.3.3 Setup For A Double Half Fold
17" or A3)
NOTE: The setup for this fold is identical to 4.3.1 except for
the positioning of the paper stop on the fold table.
Set the feed table as described in Section 4.2.2. Set the sheet
detector as described in Section 4.2.1. Set the paper stop on the
first/upper fold table to the center of the letter L (N for A3) on
the scales. Set the paper stops on the second/lower fold table to
the center of the letter T (Q for A3) on the scales. Move the
paper stops as described in Section 4.2.3. Jog the paper to be
processed on an Martin Yale Model 400 or 4200 Jogger, or hand
jog.
4.3.4 Setup For A Half Fold (Single Fold)
(8 1/2" x 11" or A4)
If your wish to score, slit, or perforate the half fold, see Section
4.4 for instructions.
Insert the first fold table into position with the folding (open)
end toward the fold rollers. The second fold table is placed into
position with the deflecting (closed) end toward the fold rollers.
Set the paper stop on the first fold table to the setting as shown
on the folding chart.
NOTE: Although half folds can be made with either
fold table, the first fold table provides better accuracy
on regular and lightweight paper stocks. However, to
reduce crushed folds and to minimize curl when
heavier stock is folded, utilize the second fold table.
For any sheet size not listed on the fold chart, fold the sheet in
half by hand. Measure the sheet to the fold. Set the paper stop
according to the measurement.
NOTE: The setup for this fold is identical to 4.3.1 except for
the positioning of the paper stop on the fold table.
Set up the feed table according to Section 4.2.2. Set the sheet
detector as described in Section 4.2.1. Jog the paper to be
processed on an Martin Yale Model 400 or Model 4200 Jogger,
or hand-jog.
4.3.5 Setup For A French Fold
A french fold requires two steps, or passes, through the
machine. During step one, the paper is folded in half and
Fig. 10
scored. During step two, the sheet is folded in half again at the
score mark. Also see Section 4.4.
For step one, set up the machine according to instructions in
Section 4.3.4. Set one scoring roller according to the following
procedure.
1. Remove the first/upper fold table.
2. To allow easier access to the upper and lower accessory
shafts, remove the stacking wheel assembly.
3. Half fold a sheet by hand and mark the sheet at the point of
the fold. Place the sheet onto the feed table with the marked
edge toward the folding rollers.
4. Loosen the set screws in the scoring roller and backup hub.
5. Turn on the pump motor switch and with the hand wheel,
manually feed the sheet through the folder until the marked
edge extends to the upper accessory shaft. (Turn off the
pump motor switch after the sheet enters the first folding
(11" x
roller.)
6. Align the scoring roller with the mark on the sheet and lock
the roller onto the flat part of the shaft.
7. Manually feed the sheet out of the machine.
8. Disengage the lower accessory shaft journal by first rotating
the journal counterclockwise. Now pull straight out on the
journal. (If the journal is difficult to remove, place the hex
key wrench through the hole in the journal and pull out.)
9. Slide the backup hub until the grooved part of the backup
hub aligns with the point on the scoring wheel.
10. Engage and lock the lower accessory shaft journal by align-
ing the shaft and journal, reinserting the journal into the
accessory shaft, and rotating clockwise.
11. A slight amount of movement in the backup hub will help
ensure adequate scoring without cutting through the paper.
Tighten the set screw in the hub onto the flat part of the
shaft only to the point where a slight amount of side-to-side
movement is apparent in the hub.
12. Reinstall the first fold table and stacking wheel assembly.
13. Fold one sheet according to instructions in Section 4.3.4 and
check the score mark locations. Adjust the scoring wheel, if
necessary, until the paper is scored in the correct position for
refolding.
NOTE: If the paper is cut through during the scoring
process, round off the point of the scoring roller with
a fine file or emery.
14. Once the scoring mark is in the correct location, run the job
through the folder.
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