Oliver 1708-N, User'S Operating And Instruction Manual

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1708 SELF-ACTUATING LIDDER
4/16/96 1708S20011
ADJUSTMENTS
Your Self-Actuating Lidder was tested at the factory, using the same trays and film as you will use.
Regulated pressure, temperature, and dwell time where adjusted during this test to provide a good
seal. Our test results indicate the following:
Regulated
Pressure PSI
Temperature
°
F
Dwell Time Seconds
When checking for a good seal look for seal completeness and reasonable seal strength. A poor
seal will occur if the product in the tray contaminates the tray flanges. Moisture will have the same
negative affect. Trays that have irregular flanges or are deformed also seal poorly. Defective trays
should be discarded.
Under different operating conditions, you may find it necessary to adjust one or all of the sealing
parameters. When making adjustments; change only one parameter at a time, make small
incremental adjustments, and record the change made. This is one situation where
"MORE IS NOT
BETTER"! In other words, more heat plus more pressure plus longer dwell time does not necessarily
equal better seals.
REGULATED PRESSURE: To adjust the regulated pressure simply pull up the black knob on the
top of the filter/regulator and rotate until the gauge shows the desired pressure (40 PSI min.). Push
the black knob back down to lock. The knob may be removed to assure tamper resistance.
DWELL TIME: The dwell time adjustment knob is on the top of the control box located on the right
side of the machine. The dwell time can be adjusted from .1 seconds to 30 seconds. Rotate the
knob between the "0" and "F" knob markings until the desired dwell time is found. The greater the
angle (clockwise direction), the greater the dwell time setting.
TEMPERATURE: The temperature of the heated upper platen can be adjusted through an access
hole on the back side of the heater cover. Use a slotted blade screwdriver to make the adjustment.
NOTE
•
DO NOT remove the adjusting sleeve or turn it in farther than necessary for the desired setting.
This action will permanently damage the thermo-switch.
Once the right combination of the three parameters is found, no further adjustments should be
necessary - so long as you do not change the film or tray material.