6
7.
CARE
AND
MAINTENANCE
Before
performing
any
work
on
the
machine,
disconnect
the
hydraulic
hose
quick
coupling.
-
Hose
and
quick
couplings:
Both,
the
hose
and
quick
couplings
must
be
maintained
in
an
optimum
condition
and
should
be
inspected
regularly.
-
Spring
cover
(Safety
cover):
Check
that
the
retract
spring
protective
cover
is
perfectly
secured
with
fixture
screws.
If
any
irregularity
is
detected,
replace
it
immediately.
For
your
safety,
NEVER
operate
the
tool
without
the
spring
cover
perfectly
secured
in
the
correct
position.
-
Piston:
It
is
advisable
to
maintain
the
thrust
piston
walls
clean
in
order
to
prevent
possible
scratches
to
the
cylinder
sleeve
walls.
-
Punch
and
Dies:
Ensure
that
they
have
no
deformations
or
burrs,
if
so
replace
immediately.
It
is
advisable
to
grease
the
punch
and
die
regularly.
-
Cylinder
body
disassembly:
When
disassembling
the
hydraulic
circuit,
never
insert
sharp
objects
such
as
screwdrivers,
tips,…
between
the
cylinder
sleeve
walls.
Pay
particular
attention
to
replacing
o
‐
rings
and
other
plastic
items.
Always
use
plastic
materials
for
this
purpose.
-
Let
a
specialist
take
care
of
repairing
and
maintaining
the
equipment:
All
repairs
should
be
performed
by
a
specialist
and
only
original
spares
should
be
used.
8.
WARNINGS
-
Hose
and
quick
couplings:
Both,
the
hose
and
quick
couplings
must
be
in
optimum
working
order.
Inspect
the
hose
for
damage
and
ensure
that
the
quick
couplings
are
clean
and
free
from
particles.
Regular
inspections
should
be
carried
out.
-
Quick
couplings:
We
would
recommend
that
the
couplings
be
disconnected
as
little
as
possible
since,
although
minimal,
a
slight
oil
loss
will
in
fact
occur.
NEVER
disconnect
a
quick
coupling
when
there
is
pressure
still
in
the
circuit.
That
is,
you
must
first
release
the
pressure
from
the
circuit
otherwise,
apart
from
the
resulting
personal
injury,
the
cylinder
will
lock
and
this
is
very
complicated
to
correct.
9.
RETRACT
SPRING
ASSEMBLY
INSTRUCTIONS.
IMPORTANT.
1.
Once
the
springs
have
been
mounted,
they
need
to
be
tightened
gradually
2.
Start
up
the
tool
and
check
very
carefully
that
when
the
machine
comes
to
the
end
of
its
travel,
the
spring
does
not
become
compressed
in
one
block,
if
this
should
occur
the
spring
would
be
projected
outwards
and
could
cause
an
accident.
3.
This
operation
should
be
performed
by
skilled
personnel
or
by
the
Official
Technical
Service.
