FISCHBEIN PBC-6000, Operator'S Manual, Page: 29 / 82

FISCHBEIN
®
Co. MODEL PBC-6000™
OPERATOR’S MANUAL
REV. D 2005-03 29
6. Check the pressure between the carry through belts. Decide which plate needs to be moved or
if both need to be adjusted. They should be evenly spaced on either side of the midline from
between the creaser assembly and compression rollers. The midline should be centered
between the channels.
7. Loosen the bolts that hold the plate to the carry through mounting shafts, but DO NOT
remove them.
8. Gradually move the plate(s) to the desired position. Check to make sure that the pressure is
consistently the same from one end of the plate to the other.
9. Tighten the bolts and check the pressure again.
10. Push the “STOP” button. Turn the Motor Enabled Switch to the “RUN” position.
11. Push the “START” button. The rear (fixed channel) belts will be activated.
12. Push and hold the “CLOSE” buttons until the swing channel closes completely. The swing
channel will stay closed and the drive motor will be turning the belts.
13. Use a couple of empty sample test bags to ensure that the belts are properly grasping and
holding the bag throughout the process in the machine. As they pass through the machine pull
down on the bag to test how well the belts holds.
Use a couple of filled sample test bags to ensure that the belts are still operating correctly.
14. Turn the system completely “OFF”, install the shrouding and set the motor enable switch to
“AUTO”.
BELT TENSION ADJUSTMENT
After normal usage, the carry through belts will become stretched and will need to be tightened. To
test the belt, pull the belt away from the carry through plate, when the swing channel is open. If it
deflects farther than ¾ inch (19mm) from the plate, then the belt needs to be tightened.
(
Illustration 8.15, page 38
) Loose belts may allow the bag top to be skewed as they pass between
them. A belt with the proper tension will deflect (in the middle) between ½ to ¾ inch (13 to 19
mm), when gently pulled away from the carry through plate. Do not over-tighten the belts. While
inspecting the belts, check for fraying or gouges in the working surface of the belt. In this case the
belt will need to be replaced.
To adjust the tension in the carry through belts, follow these steps:
1.
Turn “OFF” and lock out the electrical and pneumatic supplies.
2. (Option) Remove the fixed and swing channel shrouds.
3. Loosen the top and bottom holding bolts on the infeed. (
Illustration 8.16, page 40
)
4. Turn the tension bolt to adjust the tension in the carry through belt.
5. Once the desired tension is achieved, tighten the holding bolts.
6. Install the fixed and swing channel shrouds.
7. Turn “ON” the electrical and pneumatic systems.
8. Test the system to make sure the belts are running smoothly and grasping the filled bags
properly.
WARNING: Over-tightening of the belts could cause excessive
wear on the drive pulley bearings.