Martin Yale 959, Installation, Operation & Maintenance Instructions Manual

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fective beyond that. Take care
not to back out the screw too
far as it could fall loose inside
the frame.
5.2 Folder Belt
Tension
Warning! Disconnect the
power cord before making
this adjustment.
Remove right side cover, hand-
wheel, circuit breaker, speed control knob and nut. Check belt
tension on motor timing belt. It should deflect approximately
1/4" - 3/8". If loose, adjust by loosening the four motor screws
and relocate the motor. Reassemble side components.
5.3 Paper Guide Adjustment
Place the paper to be used on the feed table, between the paper
guides. The guides should be placed so that the center of the feed
roller is aligned approximately with the center of the paper. The
guides should be adjusted to allow the paper to move freely
down the feed table without angling to one side or the other.
Paper to be fed into the machine should always be jogged and
aligned to enter the fold tables squarely. The paper guides can be
adjusted to the proper width by loosening the adjustment screw
located underneath the feed table and sliding the rod clamps
sideways. The paper guides are mounted to the feed table with
an adjustment bar. This adjustment bar is fixed on one end and is
adjustable with a 1/4 - 20 lock screw on the other end. To adjust,
place a square against the folding rollers and one paper guide,
loosen the lock screw and move the shaft to square the guide to
the rollers. Lock the screw tightly in place.
6.0 Troubleshooting Guide
Listed below are possible problems with the most likely
cause and recommended solutions. Refer to maintenance
as applicable.
6.1 Machine Will Not Run Or Runs Slow Or
Intermittently
No Power
Check building power supply outlet, fuses, and/or cir -
cuit breaker.
Folder Circuit Breaker Tripped
Allow to cool, then reset by pushing the button in until
it stays. A tripped breaker indicates a more serious
problem such as seized bearings, paper jam, tight
drive belt, or low building supply voltage.
Tight Or Seized Bearings
Check for lack of cleaning and lubrication. Replace if
worn or over-heated (dis-colored). See section 4.2.
Loose Wiring
Due to vibration or improper handling when removing
the control side cover, wire connections may have
become loose or disconnected. See the wiring dia-
gram.
Loose or Broken Belts
Adjust or replace as necessary.
Failed Electrical Component
Check speed control, circuit breaker, and motor.
Replace if necessary.
6.2 Paper Will Not Feed
Retarder Adjustment Too Tight
See Section 3.1.
Retarder Roller Worn Out
A flat spot may wear on the bottom of the retarder roller
after some period of use. To correct, loosen the nut
and bolt that locks the roller from turning. Reposition
the roller with
the
flat spot facing
the
folding rollers.
Tighten the nut and bolt securely to prevent it from
turning.
Excessive Ink Buildup On Feed Tire
See Section 4.3.
Feed Roller Clutch
Turn the machine to the OFF position. The feed roller
should spin freely forward by hand but not backward. If
the feed roller rotates both ways or does not turn for-
ward easily, replace the clutch.
Paper Guides Too Tight
See Section 3.8 and 5.3.
6.3 Length of Fold Varies
Speed Adjustment
The length of fold will vary slightly with speed changes.
When adjusting fold table stops, make final setting at
the speed you intend to fold.
Loose Screws On Fold Table Paper Stops
Tighten bolts on bottom of split-nut and eliminate any
excess free play between micro adjustment nuts.
Buildup On Folding Rollers
See Section 4.1.
6.4 Paper Jams or Tears
Double Sheeting
See Section 3.1.
Worn out feed roller rubber: replace as necessary.
Speed Too High
Lightweight stock may require a slower speed.