Baumfolder Wetscore - Manual (Page 8)

TP10320A PAGE 8
7.0 ADJUSTMENT OF FLOW RATE
A. With the folder off, place your hand under the
sensor and open the appropriate control valve.
B. Watch for air bubbles in the tubing to move indicat-
ing flow from the needles.
C. Adjust control valves until the flow is greater than 2
drops per second from the needles.
D. If the proper flow cannot be obtained see TROUBLE
SHOOTING section of the manual.
8.0 POSITIONING OF PHOTOELECTRIC
SENSOR
A. The sensor is of the photoreflective type, it does not
require a “hole” under it to see through. Simply
position it over the sheet so that it does not interfere
with the side guide, shoe-ins, nozzle holders, etc.
B. Run one sheet under the sensor and watch to see if
the LED light on the sensor is lit when the sheet is
present, and off when not.
C. Adjust by rotating as necessary.
REFILLING THE BOTTLE
1.0 FLUID LEVEL OF THE BOTTLE
When refilling the alcohol/water solution in the bottle, it
is recommended that the bottle be only filled to 90% of
capacity.
2.0 BLEEDING AIR FROM THE TUBING
When filling the bottle, always bleed the tubing between
the on/off solenoid and the control valves. Air may become
trapped in the solenoid and an inconsistent flow will result if
not removed.
It is usually not necessary to bleed the tubing to the
needles if there is adequate flow between the solenoid and
the control valves. For procedure see instructions above.
WHILE RUNNING A JOB WITH
WetScore
1.0 CHECK THE FLUID LEVEL OF THE
BOTTLE
Never let the bottle run dry, unwanted air will fill the
lines. If the flow is sluggish, or signatures feel dry, fill the
bottle, the flow is gravity fed and dependent upon
presssure from the bottle.
2.0 WATCH THE FLOW RATE OF THE
NEEDLES UPON THE STOCK
When the needle is on the sheet and the folder is
running, the line of fluid laid down by the WetScore should
approximate the size of the needle used. Check to be sure
that the needle is in constant contact with the sheet.
Do not allow space between the sheet and the needle.
The WetScore uses capillary action to pull the fluid out of
the needle by the motion of the stock underneath it. If the
needle is allowed to pour fluid upon the sheet, it will become
difficult to obtain a consistet flow and uniform score along
the sheet.
When the folder is running and the sheet gap is under
the needle, a drop of fluid should be visible at the end of the
needle prior to the next sheet running under the needle. A
strong flow may be desirable for heavy uncoated stock.
Signatures should feel slightly wet to the touch along
the scored edge.
3.0 CHECK THE LED INDICATOR ON THE
PHOTOELECTRIC SENSOR
While the folder is running, the LED indicator light on
the photoelectric sensor should be off when there is no
sheet under the sensor. The indicator should blink on and
off with the sheet. If it is constantly on, raise the sensor
slightly to ensure that the solenoid will shut off when the
folder stops running.
4.0 REMOVING JAMMED SHEETS
NEVER PULL SHEETS OUT OF THE FOLDER
WHEN THE NEEDLES ARE IN CONTACT
WITH THE SHEET. NEEDLES MAY BEND
AND YOU WILL LOSE YOUR SHEET REGIS-
TER!