Operating Instructions
OKTOPUS
GL-K800
Technical documentation
1 19 900 002 a
Page 14 of 25
3.2
Vacuum supply
The OKTOPUS
®
GL-K800 is developed as a dual circuit system. That means, all vacuum
modules, like vacuum pump, non-return valve, vacuum reservoir, vacuum limit switch, vac-
uum gauge and suction cups are two times present (2 vacuum circles). The two electrically
operated vacuum pumps are supplied with energy by a battery.
At the OKTOPUS
®
GL-K800 the 2 vacuum circles are marked by different colors, one color
per vacuum circuit (usually blue and red). It is to be made sure that only vacuum hoses and
vacuum hose couplings of equal color are interconnected.
When mounted on the crane the OKTOPUS
®
GL-K800 is ready for operation when sufficient
vacuum is provided in both vacuum reservoirs. The current vacuum level is constantly indi-
cated on the two vacuum gauges (Fig. 6).
The green scale range is the
permissible working range from – 0.65 bar to – 0.9 bar.
Fig. 6:
Vacuum gauge
During operation the vacuum is monitored by two pressure control devices. If the vacuum is
in both vacuum circles in the working area, the green signal light shines. The OKTOPUS
®
is
ready for use. If the vacuum drops in one or both vacuum circles below the prescribed level
(exceeds the pressure the -0.65 bar mark = red scale range), an alarm is automatically acti-
vated:
⇒
the acoustic alarm sounds,
⇒
the red warning light lights up.
Connect only vacuum hoses respectively vacuum hose couplings of the
same color!
If the alarm is activated stop work immediately and evacuate the hazard
zone, as suctioned elements could suddenly be released.
The alarm remains active until the pneumatic pressure is restored to within
the permitted limits.
ATTENTION
ATTENTION
ATTENTION
Green range
The OKTOPUS
®
GL-K800
may be operated only
within this range.
Red range
The OKTOPUS
®
GL-K800
must not be operated in
this range!
