Martin Yale 959, Installation, Operation & Maintenance Instructions Manual

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Every stock has an optimum folding speed. Slower speeds are
recommended for lightweight stocks and higher speeds for heav-
ier weight stocks.
Note: Changing the speed may alter the fold
dimensions. You can compensate by making a micro adjustment
to the setting of the paper stop.
If a jam occurs, turn the machine
to the OFF position immediately and follow the jam clearing
procedure.
3.10 Clearing A Jam
When the folder is properly set up, the chances that a jam might
occur are minimal. If a jam should occur, proceed as follows:
1. Turn the machine to the OFF position immediately.
2. Remove the paper stock from the feed table.
3. Remove the fold tables if necessary.
4. Remove jammed paper by manually rotating the handwheel
to clear the machine. The machine must be cleared of
jammed paper before it is turned to the ON position again.
5. Replace the fold tables that were removed, and resume
operation.
6. If the jam was severe enough to have stalled the motor,
the circuit breaker may have opened. In this case, allow
several minutes for the breaker to cool, and then push the
reset button.
7. See Trouble-Shooting Guide for possible causes of jams.
3.11 Perforating, Scoring and Slitting
Note: Slitter is optional and not supplied. Perforating, scoring
and slitting operations are performed by means of certain acces-
sory attachments fastened to the accessory shafts, which are
located in the exit area of the machine. For slitting or perforat-
ing, the appropriate accessory attachments (slitter or perforating
cutter) must be positioned
against the lower backup hub(s) not
in the slot (Fig. 11). For scoring operations, the upper brass
roller must be centered to prevent cut-
ting through the paper. Make sure the
rubber guide rollers are positioned out-
side the attachments and inside the paper
margins. Guide rollers should be posi-
tioned with the outer edges of the rollers
approximately 1/4" from the paper mar-
gins. Both the guide rollers must make
contact with the paper passing through.
Always keep the guide rollers in contact
with their backup hubs on the lower
accessory shaft.
Special Note: The rubber guide rollers should always be adjust-
ed so they contact the paper. This should be done even if your
are not slitting, scoring, or perforating. The rubber guide rollers
help to control the paper exiting from the folding rollers.
3.12 Positioning The Attachments
1. Mark a sheet of paper at the point to be perforated, scored or
slit.
2. Use the handwheel to turn the rollers and pass a sheet
through the machine by hand until it makes contact with the
accessory shaft.
3. Remove the 1st fold table for easier access.
4. Using the allen wrench supplied, loosen the set screw in the
backup hub and slide the hub on the lower shaft so that the
ground face of the hub coincides with the marked point on
the paper. If scoring, the”V” slot of the lower backup hub
must coincide with the marked point. Position the set screw
over the flat on the shaft. Tighten the set screw. Be sure not
to tighten the set screw against the round surface, as this
will cause burrs and prevent the accessories from sliding
freely.
Note: Only one side or edge of the backup hub is sharpened and
is to be used. The ground side of the backup hub is opposite the
“V” slot (Fig. 11).
5. Move the accessories into place on the upper shaft. The
proper positions of attachments are relative to the backup
hubs as shown in Fig. 11.
If the accessories are difficult to move or if it is necessary to add
accessories or change their position on the shaft, the journals
(extending out from the ends of the shafts) can be removed to
loosen the accessory shafts.
6. Turn the journals counter-
clockwise and pull them out.
If either one is difficult to
remove, place a pin through
the hole in the journal and
rotate (Fig. 12).
7. Adjust the accessories as
necessary.
8. Replace the journals and
rotate them clockwise until they are locked.
9. Install the stripper if necessary. The stripper, which resem-
bles a large safety pin, is found hanging from the 1/2" tie
rod in the
exit area. It
is designed
to keep
lightweight
paper from
w r a p p i n g
around the
perforator.
The strip-
per should be installed in the manner shown in Fig. 13.
10. Replace the 1st or upper fold table.
Remember: If paper is not to be folded, insert the deflector
(closed) ends of the fold tables into the machine.
Note: This concludes most normal operating procedures.
However, there are several adjustments which are not covered in
the operation section. These will be covered later, so please con-
tinue to familiarize yourself with these instructions.