19
Operation (Continued)
For boxes which are fully packed with products
that support the top flaps, the adjustment of this
regulator is not critical since the boxes can
support the pressure of the upper frame (drive
belts) at a wide range of regulator settings.
However, if under-filled or fragile boxes are
sealed, this regulator can be used to set the
upper frame pressure to a minimum that is still
adequate to positively convey the box and to
prevent damage of boxes, The regulator
setting can be locked by securing the lock nut
on the regulator shaft as shown in Figure 3-5.
Note – A precision regulator is used to
balance the top drive assembly. Due to
the self relieving feature of this regulator a
small amount of air will continually vent to
the atmosphere. This is normal and
amounts to approximately 3 liter/min
[0.1 SCFM ]. Figure 3-6 – Mechanical Latch, Upper
Drive Assembly
8Main Air Pressure Gauge
Indicates main air regulator pressure setting.
Air regulator should be adjusted so gauge
reads 5 bar gauge pressure [70 PSIG].
9Mechanical Latch, Upper Drive Assembly –
Figure 3-6
The mechanical latch is provided to hold the
upper drive assembly at the fully raised position
for tape threading and maintenance.
To raise and latch the upper drive assembly:
1. Push and hold the upper frame raising
switch "A".
2. Push and hold latching knob "B".
3. Release switch "A".
4. Release knob "B".
5. Shut off air supply.
To release and lower the upper drive assembly:
1. Turn on air supply.
2. Push and release switch "A".
10 Indicator, Air Pressure
An "Optical Warning Indicator" for the
compressed air circuit of the machine is located
on the upper drive assembly just behind the red
"Stop" button. When indicator is "Red", air
circuit is on.