Martin Yale 959AF Installation, Maintenance & Operating Instructions page 14

table, no cross shaft adjustment is necessary. If the paper
does not lay flat on the feed table (climbs up the right or left
paper guide), adjust the feed table cross shaft.
7. Loosen the cross shaft hex head set screw on the side of the
feed table. If the sheet is climbing the right paper guide,
observe the gap between the left paper guide and the sheet.
Place a prying tool (bar, wrench, or screwdriver) between
the shaft and table. Move the shaft away from the folding
rollers a distance equal to 1/2 of the gap between the left
paper guide and the sheet. If the sheet is climbing the left
paper guide, observe the gap between the right paper guide
and the sheet. Place a prying tool (bar, wrench, or screw-
driver) between the shaft and table. Move the shaft toward
the folding rollers a distance equal to 1/2 of the gap between
the right paper guide and the sheet.
8. Manually feed the sheet through the machine. If it exits the
machine wrinkled, discard the sheet. Otherwise place it back
on the feed table and repeat steps one through seven until
the sheet lays flat between the paper guides.
CAUTION: Sheets used during this alignment should
not be reversed or turned over. Always use the same
edge of the sheet as the lead edge. Failure to follow
this procedure may invalidate the alignment process.
5.3.8 The Angular Control Adjustment
The next step in the alignment process is to fine tune the align-
ment via the angular control adjustment. (See Section 5.2.5.) To
do so, follow this procedure.
1. Place a stack of paper onto the feed table, turn the speed
control on low, and turn on the pump motor switch.
2. Observe the sheets as they move into the folding rollers. If
there is a narrow gap between the sheet edge and either
paper guide, use the angular adjustment screw to correct the
gap. (Turn the screw only in 1/4 to 1/2 turn increments and
no more than 1 1/2 complete turns. If the sheet is moving to
the left after entering the folding rollers, turn the screw
clockwise while the machine is running. If the sheet is mov-
ing to the right, turn the screw counterclockwise while the
machine is running. Making the appropriate adjustment
while the machine is running will allow you to watch the
results of the adjustment.
3. Adjusting the screw while the machine is running will virtu-
ally always render the best results. If, for some reason, the
sheets do not enter the folding rollers in a straight manner,
repeat instructions in Section 5.3.1, Section 5.3.7.
4. As a final check, set up the machine to perforate an 11" x
17" sheet in the center according to instructions in Section
4.4. Fold the sheet along the perforation and check to make
sure the (long) sheet edges are parallel. Minute adjustments
can be made with the adjustment screw in 1/8 to 1/4 turn
increments.
Your folder is now correctly aligned.
5.4 Clearing A Jam
When the folder is set up correctly, jams are unlikely to occur
because of a machine malfunction. However other factors
(humidity levels, paper quality, operator error, etc.) may cause
the machine to jam. If a jam should occur, follow this proce-
dure.
1. Turn off the speed control and pump motor immediately.
2. Unplug the machine.
3. Remove the fold tables (if necessary).
4. Remove the stacking wheel assembly.
5. Remove the jammed paper using manual rotation of the
hand wheel (if necessary).
CAUTION: The jam must be cleared from the machine
before restarting. If the jam was severe enough to
stall the motor, the circuit breaker may have activated
(tripped). Allow several minutes for the motor and
breaker to cool. Push the reset button on the circuit
breaker.
6. Determine the cause of the jam and remedy the problem.
See Section 6.6 for possible causes of jams.
7. Install the fold tables and the stacking wheel assembly. Plug
the machine in and resume operation.
5.5 Circuit Breaker Activation
Make sure the folder is plugged into a dedicated line. If the
folder circuit breaker activates (trips) continuously, have a qual-
ified service technician check the following.
1. The line amperage to the DC folding motor. The reading
should not exceed 3.2 amps. If the reading is more than 3.2
amps, the technician should check all gears and bearings for
adequate lubrication. Make sure the machine is resting on a
flat, level surface, and that all four pads are in place on the
bottom of the machine. Check the timing belt tension.
2. The circuit breaker, speed control, and fold motor. Replace,
as needed.
3. The electrical line for fluctuations.
5.6 Lubrication
5.6.1 The Folding Roller Bearings
The folder should be lubricated every eight hours of machine
operation according to the following procedure.
1. Turn off the machine and disconnect and lock out power.
2. Clean the folding rollers according to instructions in Section
5.1.3.
3. Remove any accumulated lint or dust from the ends of the
folding roller shafts and the shaft bearings with a brush or a
clean, dry cloth.
4. Lubricate the bearings at the ends of the folding roller shafts
with one drop of light machine oil in each bearing.
CAUTION: Do not drop oil onto the rubber portion of
the folding rollers. If oil is spilled on the rollers,
remove it immediately with Martin Yale Rubber Roller
Cleaner & Rejuvenator.
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