
-
l
-
-
-
-
General Arrangement (cont.)
8. Table Lever. When pulled towards you
the
table will rise
to
the
upper limit. A
further
application
of
pressure will lock the table in this po
si
tion. During forming
the
table complete
with
mould
is
lifted intothe
hot
plastic and locked in place
to
ensure a good vacuum seal. At
the
end
of
the
cycle
the
table
is
returned
to
the
lower
po
sition by pushing
the
handle
back
and away.
NOTE
: A mechanical interlock designed
to
prevent a mould being raised
into
the heating elements stops
the
table being raised unless
the
heater box
is
fully
back
.
9. Control Panel.
See
below control panel layout.
10
. Vacuum Pump ON/OFF switch. This turnsthe vacuum pump on and
off
. The vacuum pump evacuates the
air between
the
plastic sheet and the mould.
It
also provides pressure
to
release
the
finished moulding
from
the mould.
11.
Air
pressure outlet. When the vacuum pump
is
running,
the
pressure
is
diverted
to
this outlet.
Thi
s
can
be
used
to
supply
or
run other equipment when
not
being u
se
d
for
vacuum formin
g.
Do
not
block this
outlet
or
attempt
to
connect
air
supply This machine
DOES
NOT
require
air
supply.
12
·
~
• .
.-..
-
"V
A
- -
12
Heater
Zone
l
ayout
13
Heater
standby
leve
l
con
tr
ol
14
.
Zone
powerlevel
controls
15
0
15.
Heater
timer
16. Vacuum Gauge
12
. HeaterZone layout. Pictogram showing the correspondi
ng
zone layout
of
the quartz heater zones.
13. Heater Standby Level (Power
Saving
Feature). The 300XQ
is
supplied wi
th
fast acting heating element
s.
This means
that
when
the
heater
is
not
actually heating plastic
the
power
can
be turned down.
As
the
heater
is
moved
from
the
rear position
the
elements begin
to
heatup
to
the
set powerlevel.
For this feature
to
work effectively
the
power level
at
rest
or
standby must be s
et
to
approx.
30
%.
Fo
r
continuous usage
the
standby level may be set lower.
Fo
r infrequent us
age
it
may be required
for
the standby
level
to
be set higher. For non-
time
critical
uses
the standby level can be set
at
about
10
%.
Although the
plastic may take a
few
extra seconds
to
heat,
the
overall powersaving will be substantial
Safety Notice:
It
is advisable
to
monitor
the
heatingstage
by
makingfrequent observations.
Neverleave
the
machine unattended when actively heatingplastic.
14
. Heater Zone Controls. The 300XQ heater
is
divided
into
4 zones
as
shown by the diagram (12) on
the
control panel.
This
is
to
allow
the
user maximum flexibili
ty
especially when producing mouldings from difficult
moulds or difficult plastics.
It
is
usual
to
turn the centre zone 1 down slightly becau
se
it
gains extra heat from
the other zones surrounding it.
The
back
zone
3 also tends
to
stay
hotter
than
the
front
zone 4 because
the
rear
of
the
machine
is
heated by the heater when
it
is
not
heating plastic. A
key
feature
of
quart.z heating
is
Page
9