Operating Instructions | GPM 450 SPEED
26
Fig. 30: “MANUAL CONTROL” Screen
Use
(tool backwards) under the
UPPER TOOL
field if the perforation/creasing force gets too high and
the top bar (25) remains in the lower position. Press
to unlock the tool and adjust the thrust by using the
tool thrust regulation screws (18). Activate
(tool forwards) to make a trial stroke. Refer to Section 8.8.1
for how to use the icons of the
UPPER TOOL
field. Press
OK
to go back to the “SETTING” screen.
Note: We recommend lifting the callipers to the upper position when releasing the paper.
8.8.1 Adjustment of Top Bar Stroke
In case the depth of a crease is not the same on both sides of the sheet or the sheet is not torn away
evenly after perforation, the top bar (25) can be adjusted down using the regulation bolts (18). The bolts
should be loosened anti-clockwise gradually by 1/12 (30°) of the revolution (the bar moves downwards) and
then secure them with nuts. Try the quality of perforation after each turning of the bolt by 30° and if it is
good, do not turn the bolts more. When adjustment of perforation is finished, the machine is also adjusted
for creasing. If the perforation/creasing thrust is overdone, the engine power is exceeded and the top bar
(25) remains in the lower position. The machine must be switched off and then switched on again after
approx. 20 s. Press
(manual control) on the “SETTING” Screen and then icon
and
in the end.
The tool is now unlocked and the thrust can be adjusted by the regulation bolts (18).
8.8.2 Turning Off Automatic Feed
Automatic feed is on by default. The automatic feed is turned off by pressing the
ON
icon placed under the
AUTOMATIC FEED
key. After pressing
ON
, the warning
“Caution! Adjust callipers”
is displayed (Fig.
31). The warning appears in order to lift and lock the callipers (20) in the upper position (Section 7.2.4).
This will change the machine from automatic to semi-automatic. This way of setting is to be used in case
paper is not fed into the machine correctly. When the machine is in this setting, feeds paper manually sheet
by sheet (similarly with the GPM 450 SA machine).
