20
Operation (Continued)
Theory of Operation
The air supply powers movement of the centering
guides and upper drive assembly to automatically
adjust the case sealer to the box size being sealed
as follows:
1. A box centering switch in the center of the
infeed roller conveyor actuates movement of the
centering guides. When the operator pushes a
box onto the infeed conveyor, as shown in
Figure 3-7, the lever is depressed causing the
air cylinder powered centering guides to move
inward, thereby centering the box.
2. Once the box is centered by the guides, the
operator pushes the box against the raising
switch on the upper drive assembly, as shown
in Figure 3-8, causing the upper taping head to
be raised by two air cylinders. The upper taping
head will continue to rise above the box height
so the operator can insert the box underneath
the upper drive belts.
Figure 3-8 – Drive Assembly Raising Switch
Figure 3-7 – Box Centering Switch
• To reduce the risk associated with pinch
and entanglement hazards:
−Keep hands clear of the upper head support
assembly as boxes are transported through
the machine
CAUTION
Tape Loading/Threading
See Section II.
Note – If lower tape drum is mounted in
alternate lower outboard position, remove
taping head from machine bed by pulling
straight up, insert threading needle in taping
head and replace taping head. Install tape
roll on drum (adhesive on tape leg up), thread
tape under knurled roller on outboard mount,
then attach tape to threading needle and pull
tape through taping head with threading
needle.
Important – Before turning drive belts on, be
sure no tools or other objects are on the
conveyor bed.
•To reduce the risk associated with muscle
strain:
−Use proper body mechanics when removing
or installing taping heads that are moderately
heavy or may be considered awkward to lift
WARNING
• To reduce the risk associated with pinch
and entanglement hazards:
−Always feed boxes into the machine by
pushing only from the end of the box
−Keep hands clear of the upper head support
assembly as boxes are transported through
the machine
•To reduce the risk associated with pinch
and impact hazards:
−Keep away from the pneumatically controlled
upper drive assembly and box centering
guides when air and electric supplies are on
CAUTION