MAINTENANCE
INSTRUCTIONS
FOR
MEGA
ETCHING
MACHINES
Any
spillage
of
the
etchant
should
be
wiped
off
the
surface
with
a
clean
damp
cloth.
The
cloth
should
then
be
thoroughly
rinsed
out
and
then
the
surface
wiped
again
and
then
dried
with
paper
towels.
This
will
ensure
minimum
staining
of
the
equipment.
When
the
etching
time
becomes
twice
as
long
as
it
was
with
fresh
chemistry,
to
achieve
the
same
etching
results,
the
etching
solution
needs
to
be
changed.
After
you
have
emptied
the
tank
twice,
mix
up
a
solution
of
our
stain
remover
(Mega
part:
600
‐
039)
using
500
grams
mixed
with
water
to
make
5
litres
(2.5
kilos
for
25
litres).
Pour
the
mix
into
the
etching
tank
(Bubble
Etcher)
or
spray
chamber
in
the
Rota
‐
Spray
and
conveyorised
etching
machines.
Heat
solution
up
to
working
temperature
and
then
run
for
30
minutes.
Switch
the
machines
off
and
empty
the
solution.
Rinse
tank
/
etch
chambers
out
with
fresh
water
and
then
add
the
required
amount
of
fresh
etchant.
EXTRA
requirements
for
Rota
‐
Spray
and
FAPC
range
of
conveyorised
etchers
after
the
4
th
change
of
etching
solution.
Rota
‐
Spray
a)
After
cleaning
with
the
stain
remover
fill
the
unit
to
working
level
with
water,
then
run
the
machine
and
check
that
the
water
is
coming
out
of
the
holes
in
the
tube.
If
any
appear
to
be
blocked,
use
a
cocktail
stick
or
similar
to
remove
any
debris
and
then
test
again.
b)
Remove
the
orange
sump
guard
and
check
that
there
is
no
sludge
in
the
sump
or
round
the
heater
or
float
switch.
If
this
is
some
sludge,
carefully
remove
it
using
a
damp
cloth.
Be
especially
careful
around
the
heater.
NB
Do
not
use
paper
towels
or
issue
.
c)
Flush
sump
out
with
water.
FAPC
Conveyorised
Etching
Machines.
a)
After
cleaning
the
unit
with
the
stain
remover
and
emptying
it,
remove
the
top
manifold,
then
the
pinch
rollers
and
transport
rollers,
then
the
bottom
filter
tray,
which
is
slid
out
from
the
side
of
the
machine
and
finally
carefully
remove
the
two
sump
cover
plates.
b)
Using
a
damp
cloth,
clean
out
any
debris
or
sludge
being
careful
around
the
heaters
and
float
switch.
c)
Flush
the
sump
out
with
water.
d)
Replace
all
the
used
spray
nozzles
in
the
manifold
(Mega
part
number:
251300)
If
only
one
manifold
has
been
used
then
only
those
need
to
be
replaced.
e)
Replace
all
the
removed
parts
in
the
reverse
order.
NB
Before
replacing
the
filter
tray,
wash
it
thoroughly.
f)
Remove
the
front
and
rear
outside
pinch
rollers
and
clean
them
with
soap
and
water.
g)
Finally
remove
the
in
‐
line
filter
and
clean.
Your
unit
is
now
ready
to
be
filled
with
fresh
etchant.
Page 15
