3M Polygun EC Manual Del Propietário página 33

ffi
T[oubleshooting (continued)
I
Caution
Allow applicator to cool to room
temperature before servicing.
Failure to do
so
may
cause
burns.
(\
Figure
V
f.
Immediately (before the applicator cools),
use
a
blunt object
to gently push the adhesive cartridge approximately
one
inch into the applicator
so
the
white
sleeve
is empty
(see
Figure V). Allow
the applicator to cool to room temperature
before proceeding to next
step.
g.
With
the
tip pointed down
an_d
away
from
body,
look inside
the
white
sleeve.
'
h.
If
there is
a
thin skin of
adhesive on the
inside of the white
sleeve, the
applicator is backmelted. With the applicator
off
and
at
room temperature,
use a
small knife or screwdriver to
carefully loosen the
edge
of this
skin.
This
creates
a
ridge
for
the
next adhesive cartridge to catch.
Important:
Be
careful not to
damage the
white sleeve with knife or screwdriver,
1.
Replace the transport mechanism, stroke adjuster,
and end
clip
(see
Figure P). Reconnect the power cord to electrical
outlet
and
turn on the applicator by pressing the rocker
switch to the on position. Allow
the
applicator to
heat up
for
ten minutes.
Extrude
an
adhesive cartridge to clear the sleeve.
Extrude
a second
cartridge to be
sure
the
sleeve
is
clear.
ff
dripping
still
continues, proceed to next
step.
Important:
To avoid backmelt problems, keep the tip clean, do not
use excessive
force to extrude the adhesive, and allow
adequate
heat-up
time
(especially when using extension tips or small orifice tips).
5.
Valve assembly is defective. Replace by ordering Valve Assembly
I<tt#62-9234-9930-5.
o
3M
1996
23