Maintenance - Martin Yale 959AF Installation, Maintenance & Operating Instructions

ate instructions in Section 4.2 for the job to be processed.
1. Turn the air and vacuum control valves to the off position.
(For refolding, also turn off the right paper guide air flow
valve.)
2. Jog a stack of paper on an Martin Yale Model 400 or Model
4200 Jogger, or hand-jog. Jogging fluffs the paper, aligns the
edges, and dissipates static electricity.
NOTE: Failure to jog paper may cause feeding, fold-
ing, and stacking problems.
3. Place a stack of jogged paper onto the feed table for pro-
cessing.
4. Turn on the pump motor switch.
5. Slowly turn the air control valve clockwise until the paper
stack begins to lift.
6. Turn on the speed control and select a feed speed (usually
between 4 & 7 on the scale) by rotating the speed control
knob clockwise.
7. Slowly rotate the vacuum valve clockwise until paper sheets
begin to advance from the feed table into the folding rollers.
Some fine tuning of the air and vacuum control valves may
be necessary for optimum feeding. Optimum feed speed for
each application will vary with the condition of the machine,
operator skill and ability, the job being processed, and the
stock being run.
8. Run the entire job through the machine according to instruc-
tions.

5.0 Maintenance

WARNING! Maintenance procedures should only be
performed by qualified personnel. Disconnect power
from the machine before attempting any maintenance
procedure. Service, or disassembly of side covers should
only be attempted with the power disconnected and
locked out.
5.1 Cleaning
5.1.1 General
As often as needed (but at least weekly), vacuum paper dust and
other contaminant from the folder. Clean the main body of the
machine with a soft, dry cloth.
5.1.2 The Air Roll Rubber Bands
As often as needed, clean the air roll rubber bands with a clean
cloth dampened with a mild soap and water solution.
5.1.3 The Folding Rollers
Contaminated folding rollers can cause a variety of problems,
including inconsistent folding, wrinkling, jamming, and mis-
feeding. While the folding rollers of the folder are resistant to
chemicals in carbonless paper, toner, ink, and other contami-
nates will build up on the roller. Clean the folding rollers after
every folding job. Regular cleaning will increase roller longevi-
ty. Always use Martin Yale Roller Cleaner & Rejuvenator to
clean the folding rollers. Use of any other cleaning product may
damage the rollers. Rubber Roller Cleaner & Rejuvenator is
available from your Martin Yale Dealer, or from Martin Yale.
To clean the folding rollers, follow this procedure.
1. Remove the feed table, folding tables, the stacking wheel
assembly, and the top roller cover.
2. Liberally spray Martin Yale Rubber Roller Cleaner onto a
clean, dry cloth.
3. Briskly clean the exposed surface of all four folding rollers
until no more contaminant appear on the cloth.
4. Turn the hand wheel to expose uncleaned surfaces and con-
tinue cleaning until all surfaces are smooth and resilient, not
hard or slick.
5. After all roller surfaces are clean, restore power to the
machine. Turn on the speed control and run the rollers at
medium speed until all roller cleaner residue has evaporated.
WARNING! Make sure all cleaning cloths have been
removed from the roller area before starting the
machine. Keep hands, fingers, loose clothing and jewelry
away from the rollers.
NOTE: Failure to immediately evaporate the roller
cleaner residue may cause the rollers to bond togeth-
er. Bonding may damage the rollers, the drive system,
or the feed motor and void the warranty.
6. Inspect the rollers to make sure they are clean, and inspect
for damage or wear. Replace, if necessary.
5.1.4 The Pump Filters
As often as needed (but at least monthly), remove the front and
rear covers and clean the vacuum and air pump filters.
5.2 Adjustments
5.2.1 The Feed Table Paper Guides.
A number of circumstances may cause the feed table paper
guides to become misaligned. To correct the paper guides, fol-
low instructions in Section 5.3.2. To reset the guides when
changing paper sizes, follow instructions in Section 4.2.2.
5.2.2 Guide Finger Adjustment.
Correct setting of the guide fingers is necessary for efficient
feeding. The guide fingers prevent the paper from lifting too
high off the feed table. Incorrect setting of the guide fingers
may cause streaking, smudge marks, and paper infeed problems.
Follow instructions in Section 3.10 to correctly set the guides.
5.2.3 Air Block Spring Adjustment.
The air block must remained sealed against the air feed roll to
ensure consistent feeding. The air block spring is located on the
feed roll shaft at the left side of the air block. The spring applies
pressure to the block to ensure the seal against the vacuum
roller and is held in place by a set collar. Too much pressure
may also cause feeding problems.
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