FISCHBEIN PBC-6000, Руководство оператора

Страница: 32 / 82

FISCHBEIN
®
Co. MODEL PBC-6000™
OPERATOR’S MANUAL
REV. D 2005-03 32
ADJUSTING THE PRESSURE BETWEEN THE COMPRESSION
BELTS
The pressure between the belts is set based on the thickness of the bags being sealed. Generally,
the thick bags only require that the belts come gently into contact. The thinner bags need to have a
greater pressure between the belts. The best method for setting the compression between the
rollers is by testing. To set the compression between the belts, follow these steps:
REAR COMPRESSION ROLLER
The rear compression roller should be set before adjustments are made to the front compression
roller. Generally, once the rear compression roller is set, it should not need to be adjusted, except
after the belt has become worn or replaced. The ideal placement of the rear compression roller
places the working surface of the compression belt directly beneath the centerline between the two
channels, when the swing channel is in the closed position. (
Illustration 8.7
) However, if the
roller has moved or needs to accommodate a different set up, follow these steps:
1. Turn “OFF” and lock out the electrical and pneumatic supplies to the machine.
2. Remove the top left channel cover that is located near the drive motor. Remove the rear
(fixed) and swing channel
shrouding.
3. The swing channel must be in
the open position. When it is
closed the gap formed
between the channels is set at
the factory to be 3/16 inches
(4,76mm). The working
surface of the rear
compression belt should be
directly beneath the middle of
the gap or 3/32 inches
(2,4mm) from the face of the
channel. (
Illustration 8.7
)
4. The rear compression roller
assembly is held in position
by the ½ inch socket cap
screw, which acts as the shaft
for the roller. (
Illustration
8.8
) To move the
compression roller, loosen
the screw just enough to
allow the roller to move. Loosening the screw too much will allow the screw (shaft) to skew
too much to accurately align the compression belt.
5. The rear (fixed channel) compression roller’s position is controlled by its block, inside the
channel. Between the block and the back wall of the fixed channel is a hex-head bolt (
C
)
locked into position by a jam nut. (
Illustration 8.9
) By unlocking the jam nut and then
turning this bolt so that it rotates into the block, the roller can be moved away from the
centerline between the channels. If the bolt is rotated out of the block, the block is pushed
towards the centerline between the channels. Once the rear compression belt is in position
(
Illustration 8.10
), lock the bolt into place with the jam nut.
Illustration 8.7